Proxy Statement (Form DEF 14A)

MASTECH DIGITAL, INC.

1305 Cherrington Parkway

Building 210, Suite 400

Moon Township, Pennsylvania 15108

Telephone:(412) 787-2100

April 9, 2025

Dear Mastech Digital, Inc. Shareholder:

You are cordially invited to attend our 2025 Annual Meeting of Shareholders (the "Annual Meeting") to be held at Mastech Digital, Inc.'s office, at 511 East John Carpenter Freeway, Suite 500, Las Colinas, TX 75062 on Wednesday, May 14, 2025, at 9:00 a.m. Central Time.

The following pages contain the formal Notice of the Annual Meeting and the Proxy Statement. At this year's Annual Meeting, you will be asked to (i) vote on the election of Class II directors; (ii) approve an amendment to the Company's Stock Incentive Plan, as amended and restated effective as of May 14, 2024 (the "Plan"), to increase the number of shares of common stock that may be issued pursuant to the Plan; (iii) to cast an advisory (non-binding)vote to approve named executive officer compensation; and (iv) cast an advisory (non-binding) voteto set the frequency of an advisory vote on executive compensation. Please read the accompanying Notice of Annual Meeting and Proxy Statement carefully. Whether or not you plan to attend, you can ensure that your shares are represented at the Annual Meeting by promptly completing, signing, dating and returning the enclosed proxy card in the envelope provided.

Thank you for your continued support.

MASTECH DIGITAL, INC.

1305 Cherrington Parkway

Building 210, Suite 400

Moon Township, Pennsylvania 15108

NOTICE OF ANNUAL MEETING OF SHAREHOLDERS

To Be Held on May 14, 2025

The Annual Meeting of Shareholders (the "Annual Meeting") of Mastech Digital, Inc. (the "Company") will be held on Wednesday, May 14, 2025, at 9:00 a.m. Central Time at the Company's office at 511 East John Carpenter Freeway, Suite 500, Las Colinas, TX 75062, to consider and act upon the following matters:

1. The election of two (2) Class II directors to serve for three-year term or until their respective successors shall have been selected or qualified;

2. Vote to approve an amendment to the Company's Stock Incentive Plan, as amended and restated effective as of May 14, 2024 (the "Plan"), to increase the number of shares of common stock that may be issued pursuant to the Plan by 800,000 shares, to a total of 6,200,000 shares;

3. Advisory (non-binding)vote to approve named executive officer compensation;

4. Advisory (non-binding) voteon the frequency of an advisory vote on named executive officer compensation; and

5. The transaction of such other business as may properly come before the meeting and any adjournment or postponement thereof.

The Board of Directors has established the close of business on April 4, 2025, as the record date for the determination of the shareholders entitled to notice of and to vote at the Annual Meeting.

PLEASE VOTE AS SOON AS POSSIBLE TO ENSURE THAT YOUR VOTE IS RECORDED PROMPTLY EVEN IF YOU PLAN TO ATTEND THE ANNUAL MEETING IN PERSON. YOU HAVE THREE OPTIONS FOR SUBMITTING YOUR VOTE BEFORE THE ANNUAL MEETING: VIA THE INTERNET, BY PHONE OR BY MAIL. FOR FURTHER DETAILS, SEE "VOTING RIGHTS AND SOLICITATION" IN THE PROXY STATEMENT. IF YOU HAVE INTERNET ACCESS, WE ENCOURAGE YOU TO RECORD YOUR VOTE ON THE INTERNET. IT IS CONVENIENT, AND IT SAVES THE COMPANY SIGNIFICANT PRINTING AND PROCESSING COSTS.

Moon Township, Pennsylvania

April 9, 2025

TABLE OF CONTENTS

MASTECH DIGITAL, INC.

1305 Cherrington Parkway

Building 210, Suite 400

Moon Township, Pennsylvania 15108

PROXY STATEMENT FOR ANNUAL MEETING

OF SHAREHOLDERS

To Be Held on May 14, 2025

This Proxy Statement is being furnished to the shareholders of Mastech Digital, Inc., a Pennsylvania corporation ("Mastech" or the "Company"), in connection with the solicitation by the Board of Directors of the Company (the "Board of Directors" or the "Board") of proxies to be voted at the Annual Meeting of Shareholders (the "Annual Meeting") scheduled to be held on Wednesday, May 14, 2025, at 9:00 a.m. Central Time, at the Company's office at 511 East John Carpenter Freeway, Suite 500, Las Colinas, TX 75062, or at any adjournment or postponement thereof. This Proxy Statement is being mailed to shareholders on or about April 14, 2025.

PURPOSE OF THE MEETING

The specific proposals to be considered and acted upon at the Annual Meeting are summarized in the accompanying Notice of Annual Meeting of Shareholders. The proposals are described in more detail in this Proxy Statement.

VOTING RIGHTS AND SOLICITATION

VOTING

Only holders of record of Mastech common stock, par value $0.01 per share ("Common Stock"), as of the close of business on April 4, 2025 (the "Record Date") are entitled to notice of and to vote at the Annual Meeting and any adjournments or postponements thereof. On April 4, 2025, there were 11,753,941 shares of Common Stock outstanding.

The presence in person or by proxy of the shareholders owning at least a majority of the total number of outstanding shares of Common Stock entitled to vote at the Annual Meeting is required to constitute a quorum for the transaction of business at the Annual Meeting. The holders of Common Stock have one vote for each share held by them as of the Record Date. Shareholders may not cumulate votes.

Your shareholder vote is important. Please vote as soon as possible to ensure that your vote is recorded promptly, even if you plan to attend the annual meeting in person. You have three options for submitting your vote before the annual meeting: via the Internet, by phone or by mail. If you have Internet access, we encourage you to record your vote on the Internet. It is convenient, it saves us significant printing and processing costs and your vote is recorded immediately. Internet and telephonic voting will be available until 11:59 p.m. EasteTime on May 13, 2025. If you hold your shares in your name as a registered holder and not through a bank or brokerage firm, you may submit your vote in person. The vote you cast in person will supersede any previous votes that you submitted, whether by Internet, phone or mail. If you have any questions about submitting your vote, please call our Investor Relations department at (800) 627-8323.

PROXIES

All shares of Common Stock represented by proxies that are properly signed, completed and returned to the Corporate Secretary of the Company at 1305 Cherrington Parkway, Building 210, Suite 400, Moon Township,

1

PA 15108 at or prior to the Annual Meeting will be voted as specified in the proxy. If a proxy is signed and returned but does not provide instructions as to the shareholder's vote, the shares will be voted (a) FOR the election of the Board's nominees to the Board of Directors; (b) FOR the approval of the amendment to the Company's Stock Incentive Plan, as amended and restated effective as of May 14, 2024 (the "Plan"), to increase the number of shares of Common Stock that may be issued pursuant to the Plan; (c) FOR approval of the advisory (non-binding)proposal on named executive officer compensation; and (d) FOR every one (1) year on the advisory (non-binding) voteon frequency of holding an advisory vote on executive compensation. We are not aware of any business for consideration at the Annual Meeting other than as described in the Proxy Statement; however, if matters are properly brought before the Annual Meeting or any adjournment or postponement thereof, then the persons appointed as proxies will have the discretion to vote or act thereon according to their best judgment. A shareholder giving a proxy has the power to revoke it at any time prior to its exercise by delivering to the Corporate Secretary of the Company a written revocation or a duly executed proxy bearing a later date (although no revocation shall be effective until notice thereof has been given to the Corporate Secretary of the Company), or by attendance at the meeting and voting his or her shares in person.

Under Pennsylvania law, proxies marked ABSTAIN are not considered to be cast votes, but they will count for purposes of determining whether there is a quorum and for purposes of determining the voting power and number of shares entitled to vote at the Annual Meeting. As a result, such abstentions will have no effect on the approval of any matter to come before the meeting. Broker non-voteswill be counted for purposes of determining whether there is a quorum at the Annual Meeting, but will have no effect on the approval of any matter to come before the meeting.

SOLICITATION OF PROXIES

All costs of solicitation of proxies will be borne by the Company. In addition to solicitations by mail, the Company's directors, officers and regular employees, without additional remuneration, may solicit proxies by telephone, facsimile and personal interviews. Copies of solicitation material will be timely furnished to brokerage houses, fiduciaries and custodians holding shares in their names that are beneficially owned by others so that they may forward this solicitation material to such beneficial owners and the Company will reimburse them for reasonable out-of-pocketexpenses in connection with the distribution of proxy solicitation material.

Important Notice Regarding the Internet Availability of Proxy Materials for the Annual Meeting of Shareholders to be Held on May 14, 2025.

Complete copies of this proxy statement and our annual report for the year ended December31, 2024 are available athttp://www.mastechdigital.com/annual-meeting

2

PROPOSAL NO. 1

ELECTION OF DIRECTORS

GENERAL

The Company's Amended and Restated Articles of Incorporation ("Articles") currently provide that the number of directors constituting the entire Board shall be no less than three (3) and no more than nine (9). The Board is divided into three (3) classes, with each class to be as nearly equal in number as possible and the classes to be elected for staggered terms of three (3) years as follows: three (3) Class II directors whose terms expire in 2025; two (2) Class III directors whose terms expire in 2026; and two (2) Class I directors whose terms expire in 2027. Therefore, directors are being elected to Class II at the Annual Meeting for a three-year term expiring in the year 2028.

On April 3, 2025, Bonnie K. Smith, a current Class II director, notified the Company of her decision not to seek reelection as a Class II director at the Annual Meeting. In addition to currently serving as a Class II director on the Board, Ms. Smith currently serves as a member of the Audit, Compensation and Nominating and Corporate Governance Committees of the Board. Ms. Smith will continue to serve in such roles at the Company until her term as a Class II director on the Board expires at the Annual Meeting. Ms. Smith's decision not to seek reelection did not arise or result from any disagreement with the Company, but rather due to her desire to focus on personal commitments.

Accordingly, the names of the persons nominated for election as Class II directors are Ashok Trivedi and Nirav Patel, both of whom presently serve as Class II directors. The persons appointed as proxies intend to vote the shares represented by them at the Annual Meeting for the election of Ashok Trivedi and Nirav Patel as Class II directors. The Board of Directors knows of no reason why Ashok Trivedi and Nirav Patel would be unable to serve as Class II directors. If, at the time of the Annual Meeting, Mr.Ashok Trivedi or Mr.Nirav Patel isunable or unwilling to serve as a Class II director, the persons named as proxies intend to vote for such substitute as may be nominated by the Board of Directors. All nominations were made by the Nominating and Corporate Governance Committee, as further described under the caption "Nominating and Corporate Governance Committee" below.

CHANGES TO OUR BOARD COMPOSITION DURING THE 2024 CALENDAR YEAR AND THE FIRST QUARTER OF 2025

Effective December 31, 2024, John Ausura and Brenda Galilee, both Class III directors resigned from the Mastech Digital Board. In addition to serving as Class III directors, Mr. Ausura and Ms. Galilee served as members of the Audit, Compensation and Nominating and Corporate Governance Committees of the Board. Additionally, Mr. Ausura functioned as the Chair of the Audit Committee and Ms. Galilee functioned as the Chair of the Compensation Committee.

Effective August 12, 2024, Arun Nayar, Srinivas Kandula and Bonnie K. Smith were elected to the Board of Directors of Mastech Digital. Mr. Nayar and Mr. Kandula presently serve as Class III directors and Ms. Smith presently serves as a Class II director. Each of these three directors also presently serve as members of the Audit, Compensation and Nominating and Corporate Governance Committees of the Board. Additionally, Mr. Nayar functions as the Chair of the Audit Committee, and Mr. Kandula functions as the Chair of the Compensation Committee.

Effective January 6, 2025, Vivek Gupta resigned as a Class II director and was replaced by Nirav Patel, who was appointed as the Company's President and Chief Executive Officer effective on that date.

The following section captioned "Business Experience of Directors" sets forth certain information concerning the Board nominees for election to the Board of Directors at the Annual Meeting, as well as information about our other Directors.

3

BUSINESS EXPERIENCE OF DIRECTORS

Director Qualification Standards

We will only consider candidates for director individuals who possess the highest personal and professional ethics, integrity and values, and who are committed to representing the long-term interests of our shareholders. In evaluating candidates for nomination as a director, the Nominating and Corporate Governance Committee will also consider other criteria, including current or recent experience as a chief executive officer of a public company or as a leader of another major complex organization in the public or private sector; business and financial expertise; geography; experience as a director of a public company; gender and ethnic diversity on the Board; independence; knowledge of the Company's business and industry; and general criteria such as independent thought, practical wisdom and mature judgment. In addition, directors must be willing to devote sufficient time to carrying out their duties and responsibilities effectively and should be committed to serving on the Board for an extended period of time. One or more of our directors must possess the education or experience required to qualify as an audit committee financial expert.

Nominees for Directors in Class II Whose Terms will Expire in 2028

Ashok Trivedi,age 75, has served as a Director and Co-Chairmansince our formation in 2008. Mr. Trivedi was the Co-Founderof iGATE and Mastech. Mr. Trivedi served as Co-Chairmanand President of iGATE from October 1996 until April 2008, when he resigned as President, but remained a director of iGATE and Co-Chairmanof the iGATE Board until July 2015. Mr. Trivedi also served as the Chairman of the Board of iGATE Global Solutions Limited, a subsidiary of iGATE, and held this position from July 2000 until July 2015. From 1988 through September 1996, Mr. Trivedi served as President of iGATE and held other offices, including Secretary and Treasurer. From 1976 to 1988, he held various marketing and management positions with Unisys Corporation. Mr. Trivedi holds a Master's degree in Business Administration from Ohio University and a Master's degree in Physics from Delhi University. Mr. Trivedi also serves as the Managing Partner of SWAT Capital Administrator LLC and as the principal executive officer of the Trivedi Family Office. Mr. Trivedi's history and experience with the Company since its inception led to the Board's conclusion that he should serve as a Director of the Company.

Nirav Patel, age 51, has served as our President and Chief Executive Officer and a Director since January 2025. Prior to joining the Company, from July 2020 to December 2024, Mr. Patel was President, Chief Executive Officer and a member of the Board of Bristlecone, a large pure-play supply chain service provider. Prior to joining Bristlecone, Mr. Patel spent more than 19 years working for Cognizant, an IT services and consulting company. From October 2016 to July 2019, Mr. Patel served as the Senior Vice President and Global Head of Communications, Media and Technology, and from May 2013 to October 2016 as the Senior Vice President and Head of Global Markets of Media and Entertainment, of Cognizant businesses. Mr. Patel is part of the CNBC CEO Council and Forbes Technology Council. He holds a computer science degree from Madras University and is an HBS Advanced Management alumnus. Mr. Patel's service as the President and Chief Executive Officer of the Company and his experience as a senior executive for other IT companies led to the Board's conclusion that he should also serve as a Director of the Company.

Directors in Class III Whose Terms will Expire in 2026

Arun Nayar, age 74, has served as a Director since August 2024. Mr. Nayar has served on the board of directors of GFL Environmental Inc. (NYSE: GFL) since June 2018, and Amcor PLC (NYSE: AMCR) since June 2019. He has also served as a Senior Advisor to McKinsey and Company since May 2016 and as the Global Advisory Council of ServiceNow, Inc. (NYSE: NOW) since August 2022. Previously, from January 2012 to December 2015, Mr. Nayar served as Executive Vice President and Chief Financial Officer of Tyco International, a $10 billion+ fire protection and security company. He holds a degree of Fellow Chartered accountant from the Institute of Chartered Accountants in England and Wales. Mr. Nayar's experience and expertise as a Chief Financial Officer of a publicly-traded company led to the Board's conclusion that he should serve as a Director of the Company.

4

Srinivas Kandula, age 61, has served as a Director since August 2024. Dr. Kandula is an author, educator, business leader, and innovator who leads strategy and operations at the Centre for Organization Development (CoD), Hyderabad, India. He was formerly the Chairman of the board of directors and Chief Executive Officer of Capgemini India where he was responsible for leading the Company's operations across India and building leadership quotient globally. Previously, Dr. Kandula held the roles of Chief People Officer, Executive Vice President, and Member of the Executive Council at iGATE Corporation ("iGate"). Dr. Kandula's experience as a Chief Executive Officer of a major India organization led to the Board's conclusion that he should serve as a Director of the Company.

Directors in Class I Whose Terms will Expire in 2027

Sunil Wadhwani,age 72, has served as a Director and Co-Chairmansince our formation in 2008. Mr. Wadhwani was the Co-Founderof iGATE, a provider of integrated technology and operations-based information technology solutions, and Mastech. Mr. Wadhwani served as Co-Chairmanand Chief Executive Officer of iGATE from 1986 until April 2008, when he resigned as Chief Executive Officer, but remained a director of iGATE and Co-Chairmanof the iGATE Board until July 2015. From 1986 through September 1996, Mr. Wadhwani served as Chairman of iGATE and held several other offices, including President and Chief Executive Officer. Mr. Wadhwani has a Bachelor's degree from the Indian Institute of Technology and a Master's degree from Carnegie Mellon University. Mr. Wadhwani also serves as the Managing Partner of SWAT Capital Administrator LLC and as the principal executive officer of the Wadhwani Family Office. Mr. Wadhwani's history and experience with the Company since its inception led to the Board's conclusion that he should continue as a Director of the Company.

Vladimir Rak, age 48, has served as a Director since April 2022. Mr. Rak is the Executive Vice President & Chief Technology Officer at DICK'S Sporting Goods, Inc., a role he has held since April 2020. In this role, Mr. Rak is responsible for that company's technology Product Management, Design & Engineering and Foundational Platforms & Services. Prior to joining DICK'S, he served as Senior Vice President & Chief Technology Officer at Merck & Co. from October 2019 to March 2020. Prior to DICK'S Sporting Goods and Merck, Mr. Rak held senior executive roles at Nike, Inc. from February 2016 to October 2019 and at the Walt Disney Company from September 2011 to January 2016. Mr. Rak graduated from Jacksonville University with an undergraduate degree in Computer Information Systems. Mr. Rak's expertise within the IT industry with larger global enterprises and his experience as a buyer of technology services led to the Board's conclusion that he should continue as a Director of the Company.

Director in Class II Whose Term is Ending at the Annual Meeting

Bonnie K. Smith, age 59, has served as a Director since August 2024. From October 2020 to February 2024, Ms. Smith served as Executive Vice President & Chief Information Officer of TD Synnex, a leading IT equipment and services distributor. Prior to joining TD Synnex, from June 2016 to October 2020 Ms. Smith was Vice President and Chief Information officer at Lear Corporation, a global automative technology leader in seating and e-systems,and from April 2014 to June 2016 was Senior Vice President and Sector Chief Information Officer at Eaton, an intelligent power management company. Ms. Smith holds an MBA graduate degree from the University of Chicago and a computer science graduate degree from Indiana University of Pennsylvania. She also contributes as a Director for Mentors International and the Rhonda Walker Foundation.

VOTES REQUIRED

The Class II Directors will be elected by a plurality of the votes of shares present and entitled to vote. Accordingly, the nominees who receive the largest number of votes actually cast will be elected.

RECOMMENDATION OF THE BOARD OF DIRECTORS

The Board of Directors unanimously recommends that the shareholders vote FOR the nominees named herein.

5

PROPOSAL NO. 2

APPROVE AN AMENDMENT TO THE MASTECH DIGITAL, INC. STOCK INCENTIVE PLAN, AS AMENDED AND RESTATED EFFECTIVE MAY 14, 2024 (THE "PLAN"), TO INCREASE THE NUMBER OF SHARES OF COMMON STOCK THAT MAY BE ISSUED PURSUANT TO THE PLAN

GENERAL

We are asking our shareholders to approve an amendment to the Mastech Digital, Inc. Stock Incentive Plan, as amended and restated effective May 14, 2024 (the "Plan"), to increase the number of shares of Common Stock of the Company that may be issued pursuant to the Plan by 800,000 shares, to a total of 6,200,000 shares.

No other changes to the Plan are being proposed.

The amendment will not become effective unless and until shareholder approval is obtained. If shareholders do not approve the amendment, the Plan will instead remain in effect in accordance with its pre-existingterms.

The proposed amendment to the Plan is attached hereto as Exhibit A.

BACKGROUND AND PURPOSE OF THE PROPOSAL

The grant of stock-based awards under the Plan has been a key component of the Company's compensation program since its original adoption in 2008. The Plan provides a means through which the Company and its subsidiaries may attract and retain talented persons as officers, employees, directors and consultants and provides a means whereby those persons, upon whose judgment, initiative and efforts the Company largely depends for the successful conduct of its business, may acquire a proprietary interest in the Company. The Plan was adopted to serve the following purposes: (i) to advance the interests of the Company by attracting and retaining high-caliber employees and other key individuals, (ii) to align the interests of our shareholders and recipients of awards under the Plan by increasing the proprietary interest of such recipients in the Company's growth and success, and (iii) to motivate award recipients to act in the long-term best interests of the Company and its shareholders.

We are now requesting that our shareholders vote in favor of approving an amendment to the Plan to increase the number of shares of our Common Stock issuable under the Plan, which amendment will allow us to continue providing equity compensation awards to such employees and other key individuals as a competitive compensation practice and to align the interests of our employees and other key individuals with those of our shareholders.

Approval to Increase the Number of Shares Issuable Under the Plan

As discussed above, equity compensation is a key component of our executive compensation program and is the mechanism pursuant to which we provide long-term incentives to our employees. We believe that equity incentives are critical to attracting and retaining the most talented employees and to providing appropriate performance incentives.

The Plan currently authorizes the issuance of up to 5,400,000 shares of Common Stock of the Company. As of December 31, 2024, there were 402,000 shares remaining and available for future awards under the Plan.

Based on historical usage and expected practices, we estimate that the 800,000 additional shares, when aggregated with the shares currently available for issuance under the Plan, would be sufficient for two additional years of awards under the Plan. Approval of the amendment would allow the Company to continue to grant incentive awards and reward opportunities under the Plan. In addition, if the amendment to the Plan is approved by our shareholders, our 2024 Inducement Stock Incentive Plan will be terminated (which means no further grants can be made under the 2024 Inducement Stock Incentive Plan but existing outstanding awards granted pursuant to that plan will continue to be governed by that plan's terms). If our shareholders do not approve the amendment to the Plan, the 2024 Inducement Stock Incentive Plan will remain in force and additional grants may be made thereunder.

6

SUMMARY OF THE PLAN

The following summary provides a general description of the material features of the Plan and is qualified in its entirety by reference to the full text of the Plan, attached as Exhibit B, and the proposed amendment to the Plan, attached as Exhibit A.

General. As noted above, the Plan, originally effective as of October 1, 2008, was amended and restated effective as of May 14, 2024 and was adopted to serve the following purposes: (i) to advance the interests of the Company by attracting and retaining high caliber employees and other key individuals; (ii) to align the interests of the Company's shareholders and recipients of awards under the Plan by increasing the proprietary interest of such recipients in the Company's growth and success; and (iii) to motivate award recipients to act in the long-term best interests of the Company and its shareholders.

Administration. The Plan is generally administered by our Compensation Committee; provided, that the Plan authorizes the full Board or a subcommittee of our Board to function as the plan administrator, and permits the Compensation Committee to delegate to Co-Chairmenof the Company or to the Chief Executive Officer the plan administrator's duties and authority under the Plan with respect to granting awards to individuals who are not subject to Section 16 of the Securities Exchange Act of 1934, as amended, and who are not expected to be "covered employees" for purposes of Section 162(m) of the Internal Revenue Code of 1986, as amended (the "Code"). As discussed under "Compensation Committee", our Compensation Committee members meet the requirements of being "non-employeedirectors" within the meaning of Rule 16b-3(a)(3).The administrator of the Plan is referred to herein as the "plan administrator".

The plan administrator is authorized to determine the individuals who will receive awards (the "participants"), the types of awards to be granted, the number of shares to be subject to each award, the price of the awards granted, the terms and conditions of such awards, including any performance criteria, any payment terms, payment method and the expiration date applicable to each award. The plan administrator is also authorized to establish, adopt or revise rules relating to the administration of the Plan.

Authorized Shares. Currently, 5,400,000 shares of the Company's Common Stock may be subject to awards under the Plan, which amount would be increased to a total of 6,200,000 shares of the Company's Common Stock if this amendment is approved. The shares of the Company's Common Stock as reserved are subject to adjustment in the event of a stock split, stock dividend, recapitalization, reorganization, merger, consolidation, combination, exchange of shares, liquidation, spin-offor other similar event. If any award granted under the Plan expires or otherwise terminates for any reason without having been exercised or settled in full, or if shares subject to forfeiture are forfeited, any such shares reacquired or subject to a terminated award will again become available for issuance under the Plan.

Eligibility. All employees and directors, officers and consultants who perform services for the Company or a subsidiary of the Company (as defined in the Plan) will be eligible to receive awards. The plan administrator has the discretion to select participants and determine the form, amount and timing of each award to such persons, the exercise price or base price associated with the award, the time and conditions of exercise or settlement of the award and all other terms and conditions of an award.

Forms of Awards. Awards under the Plan may include one or more of the following types: (i) stock options (both nonqualified and incentive stock options); (ii) stock appreciation rights ("SARs"); (iii) restricted stock awards; (iv) stock awards; and (v) performance share awards.

Stock options are rights to purchase a specified number of shares of the Company's Common Stock at a price fixed by the plan administrator as of the date of grant. The exercise price of each option may not be less than the fair market value of a share of Common Stock on the date of grant. Options expire no later than ten years after the date of grant. However, any incentive stock option may only be granted to an employee of the Company

7

or a subsidiary (as defined in Section 424 of the Code), and if granted to a person who at the time of grant owns stock possessing more than 10% of the total combined voting power of all classes of stock of the Company or any parent or subsidiary corporation of the Company ("10% Shareholder"), must have an exercise price equal to at least 110% of the fair market value of a share of Common Stock on the date of grant and expire no later than five years after the date of grant. All options will become exercisable at such time and in such installments as the plan administrator determines. Payment of the option price (sometimes called the exercise price or strike price) must be made in full at the time of exercise in such form as the plan administrator permits. Payment methods include cash, the exchange of shares already owned, broker-cashless exercise, withholding of shares otherwise deliverable, or a combination of the preceding alternatives. The plan administrator may also authorize "stock retention" options, which provide upon the exercise of an option previously granted, using previously owned shares, for the automatic issuance of a new option under this Plan with an exercise price equal to the fair market value on the date of grant, for up to the number of shares equal to the previously-owned shares delivered in payment of the exercise price of the prior option.

A SAR entitles the holder to receive, upon exercise, an amount equal to the positive difference between the fair market value of one share of Common Stock of the Company on the date the SAR is exercised and the exercise price, multiplied by the number of shares of Common Stock with respect to which the SAR is exercised. The plan administrator has the discretion to determine whether the amount to be paid upon exercise of a SAR may be paid in cash, Common Stock (including restricted stock) or a combination of cash and Common Stock.

Restricted stock awards provide for a specified number of shares of Common Stock subject to a restriction against transfer during a period of time or until other conditions or performance measures are satisfied, as established by the plan administrator. Unless otherwise set forth in the agreement relating to a restricted stock award, the holder of an unvested restricted stock award does not have any of the rights of a shareholder, including voting rights and the right to receive dividends.

Stock awards are shares of the Company's Common Stock which are vested at the time of grant and are not subject to a restriction period or performance measures.

Performance share awards are awards entitling the recipient to acquire shares of our Common Stock upon the attainment of specified performance measures during a performance period set by the plan administrator. Performance measures that may be used include one or more of the following, and may be expressed in either, or a combination of, relative or absolute values:

8

Such criteria and objectives may relate to results obtained by the individual, the Company, a subsidiary, or an affiliate, or any branch, department, business unit or division thereof, or may relate to results obtained relative to a specific industry or a specific index, peer group of companies, prior performance periods or other measure selected or defined by the plan administrator at the time of grant. The plan administrator may also choose other performance objectives as performance criteria at the time of grant, even if such performance share award would not qualify under Section 162(m) of the Code.

Termination of Service. The effect of a participant's termination of service on his or her award depends on the reason for such termination, the provisions of the particular award and, in some cases, the terms of the participant's employment agreement. Generally, unless otherwise provided, unvested restricted stock awards and unvested performance share awards will terminate upon termination from employment for any reason. For stock options and SARs, unless otherwise specified in the agreement, termination of employment due to disability or retirement will result in vested options and vested SARs remaining exercisable for a period of one year from the date employment terminates or, if earlier, the date on which the option or SAR expires; termination of employment (unless due to disability, retirement or for cause) will result in the option or SAR remaining exercisable, to the extent vested on the date employment terminates, for a period of three months thereafter or, if earlier, the date on which the option or SAR expires; termination of employment for cause or commencement of services as an officer, director or consultant of a competing business will result in the immediate termination of the option or SAR. Cessation of service will generally result in options and SARs remaining exercisable for three months, unless cessation was due to disability, in which event the exercise period will generally be extended to one year following termination (provided, that removal for cause or commencement of services as an officer, director or consultant of a competing business will result in the immediate termination of the option or SAR).

Maximum Award. Stock options with regard to no more than 625,000 shares of Common Stock of the Company (as adjusted for stock splits) and stock appreciation rights with regard to no more than 625,000 shares of Common Stock of the Company (as adjusted for stock splits) may be granted in any calendar year period. In any one calendar year during any performance period, the maximum amount which may be earned by any one participant under performance share awards shall be limited to 625,000 shares of Common Stock of the Company (as adjusted for stock splits).

Change in Control. Unless otherwise provided in an award agreement or employment agreement, upon a change in control, each outstanding award under the Plan shall (i) be assumed by the acquiring company; or (ii) accelerate and become exercisable or be released from all restrictions, as applicable, immediately prior to the change in control. The Board may determine, in its discretion, that outstanding awards will be surrendered for payment in cash or stock. The performance period with regard to any performance share awards will be deemed to end on the day prior to the effective date of the change of control.

Adjustments upon Certain Events. In the event of a reorganization, recapitalization, reclassification, stock dividend, stock split, reverse stock split or other similar transaction resulting in an increase or decrease in the outstanding shares of our Common Stock, or exchange of our Common Stock for a different number or kind of shares or other securities of the Company, or the distribution of additional shares or new or different securities or

9

other non-cashassets, the plan administrator will make an appropriate or proportionate adjustment in (i) the number of stock options, stock appreciation rights and performance share awards that can be granted to any one individual participant, (ii) the number and kind of shares or other securities subject to any outstanding awards, (iii) the price for each share subject to outstanding stock options or stock appreciation rights or other purchase rights under the Plan, without changing the aggregate purchase price, and (iv) the number of shares which may be issued under the Plan but are not then subject to awards. If the outstanding shares of Company Common Stock will be changed in value by reason of a spin-off,split-offor split-up,or dividend in partial liquidation, dividend in property other than cash, or extraordinary distribution to shareholders, then (i) the plan administrator will make any adjustment to any outstanding stock option, SAR, restricted stock performance share or other stock award which it determines is equitably required to prevent dilution or enlargement of the rights of participants, and (ii) unless otherwise determined by the plan administrator in its discretion, any stock, securities, cash or other property distributed with respect to any shares of restricted stock held in escrow or for which such shares of restricted stock will be exchanged shall also be held by the Company in escrow and subject to the same restrictions as apply to the restricted stock. No adjustment or substitution will require the Company to issue or sell a fractional share of stock, and total adjustments or substitutions will be limited accordingly.

Awards not Transferable. Generally, awards under the Plan may not be sold, pledged, assigned, transferred or otherwise encumbered or disposed of other than by will or by laws of descent and distribution or, subject to the consent of the plan administrator, pursuant to a domestic relations order. After the death of the participant, the award may be transferred to the Company upon such terms and conditions, if any, as the plan administrator and the personal representative or other person entitled to exercise the award may agree, within the remaining exercise period. Options and SARs are exercisable during the lifetime of the participant only by the participant.

Tax Withholding.As a condition to the issuance or delivery of shares of our Common Stock or payment of other compensation pursuant to the exercise or lapse of restrictions on any award, the Company has the authority to require participants to discharge all applicable withholding tax obligations. Shares held by or to be issued to a participant may also be used to discharge tax withholding obligations, subject to the discretion of the plan administrator to disapprove of such use.

Summary of United States Federal Income Tax Consequences

The following summary is intended only as a general guide to the United States federal income tax consequences of participation in the Plan and does not attempt to describe all possible federal or other tax consequences of such participation or tax consequences based on particular circumstances.

Incentive Stock Options. A participant recognizes no taxable income for regular income tax purposes as a result of the grant or exercise of an incentive stock option qualifying under section 422 of the Code. Participants who neither dispose of their shares within two years following the date the option was granted nor within one year following the exercise of the option will normally recognize a capital gain or loss upon the sale of the shares equal to the difference, if any, between the sale price and the purchase price of the shares. If a participant satisfies such holding periods upon a sale of the shares, we will not be entitled to any deduction for federal income tax purposes. If a participant disposes of shares within two years after the date of grant or within one year after the date of exercise (a "disqualifying disposition"), the difference between the fair market value of the shares on the option exercise date and the exercise price (not to exceed the gain realized on the sale if the disposition is a transaction with respect to which a loss, if sustained, would be recognized) will be taxed as ordinary income at the time of disposition. Any gain in excess of that amount will be a capital gain. If a loss is recognized, there will be no ordinary income, and such loss will be a capital loss. Any ordinary income recognized by the participant upon the disqualifying disposition of the shares generally should be deductible by us for federal income tax purposes, except to the extent such deduction is limited by applicable provisions of the Code.

In general, the difference between the option exercise price and the fair market value of the shares on the date of exercise of an incentive stock option is treated as an adjustment in computing the participant's alternative

10

minimum taxable income and may be subject to an alternative minimum tax which is paid if such tax exceeds the regular tax for the year. Special rules may apply with respect to certain subsequent sales of the shares in a disqualifying disposition, certain basis adjustments for purposes of computing the alternative minimum taxable income on a subsequent sale of the shares and certain tax credits which may arise with respect to participants subject to the alternative minimum tax.

Nonqualified Stock Options. Options not designated or qualifying as incentive stock options are nonqualified stock options having no special tax status. A participant generally recognizes no taxable income upon receipt of such an option. Upon exercising a nonqualified stock option, the participant normally recognizes ordinary income equal to the difference between the exercise price paid and the fair market value of the shares on the date when the option is exercised. If the participant is an employee, such ordinary income generally is subject to withholding of income and employment taxes. Upon the sale of stock acquired by the exercise of a nonqualified stock option, any gain or loss, based on the difference between the sale price and the fair market value of the shares on the exercise date, will be taxed as capital gain or loss. The Company generally should be entitled to a tax deduction equal to the amount of ordinary income recognized by the participant as a result of the exercise of a nonqualified stock option, except to the extent such deduction is limited by applicable provisions of the Code.

Stock Appreciation Rights. A participant recognizes no taxable income upon the receipt of a stock appreciation right. Upon the exercise of a stock appreciation right, the participant generally will recognize ordinary income in an amount equal to the excess of the fair market value of the underlying shares of Common Stock on the exercise date over the exercise price. If the participant is an employee, such ordinary income generally is subject to withholding of income and employment taxes. The Company generally should be entitled to a deduction equal to the amount of ordinary income recognized by the participant in connection with the exercise of the stock appreciation right, except to the extent such deduction is limited by applicable provisions of the Code.

Restricted Stock. A participant acquiring restricted stock generally will recognize ordinary income equal to the excess of the fair market value of the shares on the "determination date" over the price paid, if any, for such shares. The "determination date" is the date on which the participant acquires the shares unless the shares are subject to a substantial risk of forfeiture and are not transferable, in which case the determination date is the earlier of (i) the date on which the shares become transferable; or (ii) the date on which the shares are no longer subject to a substantial risk of forfeiture (e.g., when they become vested). If the determination date follows the date on which the participant acquires the shares, the participant may elect, pursuant to section 83(b) of the Code, to designate the date of acquisition as the determination date by filing an election with the Internal Revenue Service (the "IRS") no later than 30 days after the date on which the shares are acquired. If the participant is an employee, such ordinary income generally is subject to withholding of income and employment taxes. Upon the sale of shares acquired pursuant to a restricted stock award, any gain or loss, based on the difference between the sale price and the fair market value of the shares on the determination date, will be taxed as capital gain or loss. The Company generally should be entitled to a deduction equal to the amount of ordinary income recognized by the participant on the determination date, except to the extent such deduction is limited by applicable provisions of the Code.

Performance Share Awards. A participant generally will recognize no income upon the receipt of a performance share. Upon the settlement of such awards, participants normally will recognize ordinary income in the year of settlement in an amount equal to the cash received and the fair market value of any substantially vested shares of stock received. If the participant is an employee, such ordinary income generally is subject to withholding of income and employment taxes. If the participant receives shares of restricted stock, the participant generally will be taxed in the same manner as described above under "Restricted Stock." Upon the sale of any shares received, any gain or loss, based on the difference between the sale price and the fair market value of the shares on the determination date (as defined above under "Restricted Stock"), will be taxed as capital gain or loss. The Company generally should be entitled to a deduction equal to the amount of ordinary income recognized by the participant on the determination date, except to the extent such deduction is limited by applicable provisions of the Code.

11

Section162(m) Limitation. In general, Section 162(m) of the Code imposes a limit on corporate tax deductions for compensation in excess of $1 million per year paid by a public company to its Chief Executive Officer, the Chief Financial Officer or any of the next three most highest paid executive officers as listed in the proxy statement (each a "covered executive") or, beginning in 2018, to any person who was a covered executive in 2017 or later. Prior to the enactment of the Tax Cuts and Jobs Act on December 22, 2017, an exception to this limitation was provided for "performance-based compensation" that satisfies certain conditions. In particular, the compensation must be paid solely on account of the attainment of one or more objective, pre-establishedperformance goals, and three other requirements must be met:

Following the enactment of the Tax Cuts and Jobs Act on December 22, 2017, the forgoing exemption for "performance-based compensation" under Section 162(m) was eliminated effective as of the beginning of our 2018 fiscal year (unless the compensation is provided pursuant to a written binding contract which was in effect on November 2, 2017, and which was not modified in any material respect on or after November 2, 2017). For further discussion regarding Section 162(m) of the Code, see "Tax Deductibility of Compensation" in the Compensation Discussion and Analysis section on page 31 of this Proxy.

Claw backs

Notwithstanding any other provisions in the Plan, the Company may cancel any award, require reimbursement of any award by a participant, and effect any other right of recoupment of equity or other compensation provided under the Plan in accordance with the Company's Claw back Policy adopted by the Board effective as of December 1, 2023, and any other similar Company policies that may be adopted and/or modified from time to time ("Claw back Policy"). In addition, a participant may be required to repay to the Company previously paid compensation, whether provided pursuant to the Plan or an award agreement, in accordance with the Claw back Policy.

Section 409A

Plan awards and the agreements evidencing the awards are intended to be structured in a manner to avoid the imposition of any penalty taxes under Section 409A of the Code, and the Plan and the award agreements shall be interpreted and construed in a manner that establishes an exemption from (or compliance with) the requirements of Section 409A of the Code. Any terms or provisions of the Plan or any award agreement that are undefined or ambiguous shall be interpreted in a manner that makes award in question exempt from, or compliant with, Section 409A of the Code. Notwithstanding the foregoing, in no event shall the Company or any subsidiary or other affiliate of the Company, or any member of the Board or any person acting on behalf of the Company or any subsidiary or other affiliate of the Company or on behalf of the Board, have any liability to any participant or any other individual or entity for any failure to comply with Section 409A of the Code.

Notwithstanding any provisions of the Plan or any applicable award agreement to the contrary, no payment shall be made with respect to any award, or portion of any award, that is subject to Section 409A of the Code to a "specified employee" (as such term is defined for purposes of Section 409A of the Code) prior to the first date that is at least six (6) months after the employee's separation of service to the extent such six-monthdelay in

12

payment is required to comply with Section 409A of the Code. To the extent required to comply with Section 409A of the Code, a termination of employment shall not be deemed to have occurred for purposes of any payment or distribution upon or following a termination of employment unless such termination is also a "separation from service" within the meaning of Section 409A of the Code and accordingly, a reference to termination of employment, termination of service or like terms shall mean a "separation from service" as the context may require.

Amendment, Suspension or Termination

The Plan will continue in effect until its termination by the Board of Directors, provided, that no awards may be granted under the Plan following the tenth anniversary of the Plan's effective date, May 14, 2034. The Board of Directors may amend, suspend or terminate the Plan at any time, provided that no amendment may be made without shareholder approval if either (i) the amendment would increase the number of shares issuable as incentive stock options, or change the class of persons eligible to receive incentive stock options under the Plan, or (ii) shareholder approval at the time of the amendment is required, either by the rules of any stock exchange on which our Common Stock is at the time listed. No amendment, suspension or termination of the Plan may deprive any person of any rights previously granted under the Plan, without that person's consent.

New Plan Benefits

The grant of awards under the Plan is discretionary, except for 195,000 stock options that will be granted to employees of the Company during the second quarter of 2025, including 150,000 stock options to Kannan Sugantharaman on April 14, 2025 in accordance with his employment agreement with the Company. These grants will have a per share exercise price equal to the closing price of the Company's common stock on the NYSE MKT on the date of the grant. It is within the discretion of the plan administrator to determine the recipients of awards, and as of the date of this Proxy Statement, the plan administrator has not determined future awards or who may receive them other than the 195,000 stock options referenced above. Therefore, it is not possible at present to determine the amount or form of any award that will be available for future grant to any individual according to the Plan other than the 195,000 stock options referenced above. For illustrative purposes, please refer to the "Grants of Plan-Based Awards Table" in this Proxy Statement to review equity awards made to our named executive officers in 2024.

Securities Authorized for Issuance under Equity Compensation Plans

The following table provides information as of December 31, 2024, with respect to shares of our Common Stock that may be issued under the Plan, the 2024 Inducement Stock Incentive Plan which was approved by the Board of Directors on December 10, 2024 and is described in further detail below under the heading "2024 Inducement Stock Incentive Plan", and the Company's 2019 Employee Stock Purchase Plan (the "Stock Purchase Plan"), which are the Company's only existing equity compensation plans under which grants can be made. Shareholders previously approved the Plan on May 14, 2024. Shareholders previously approved the Stock Purchase Plan on May 15, 2019.

Equity Compensation Plan Information

13

The following table lists each named executive officer, all current executive officers as a group (as determined under applicable SEC rules), all current directors (other than executive officers) as a group, each associate of the foregoing persons, each other person who received at least five percent of the options under the Plan, and all current employees of the Company (other than executive officers) as a group, indicating, as of December 31, 2024, the aggregate number of options, restricted shares and performance shares granted under the Plan to each of the foregoing since the inception of the Plan in 2008.

VOTES REQUIRED

Approval of this proposal requires the affirmative vote of a majority of the votes cast by all shareholders entitled to vote on this proposal. If you hold your shares in your own name and abstain from voting on this

14

matter, your abstention will have no effect. If you hold your shares through a broker and you do not instruct the broker on how to vote on this proposal, your broker will not have authority to vote your shares. Broker non-voteswill have no effect on the outcome of this vote. Abstentions and broker non-voteswill each be counted as present for purposes of determining the presence of a quorum.

IMPACT ON THE 2024 INDUCEMENT STOCK INCENTIVE PLAN

Our 2024 Inducement Stock Incentive Plan, under which approximately 800,000 shares of Common Stock remain available for issuance as of the Record Date, will be terminated if our shareholders approve the amendment to the Plan described under this Proposal No. 2 (which means no further grants can be made under the 2024 Inducement Stock Incentive Plan but existing outstanding awards granted pursuant to that plan will continue to be governed by that plan's terms). If our shareholders do not approve the amendment to the Plan described under this Proposal No. 2, the 2024 Inducement Stock Incentive Plan will remain in force and additional grants may be made thereunder.

RECOMMENDATION OF THE BOARD OF DIRECTORS

The Board of Directors unanimously recommends that the shareholders vote FOR approving the amendment to the Plan to increase in the number of shares of Common Stock that may be issued pursuant to the Plan by 800,000 shares, to a total of 6,200,000 shares.

15

PROPOSAL NO. 3

ADVISORY VOTE ON NAMED EXECUTIVE OFFICER COMPENSATION

GENERAL

Following the 2019 Annual Meeting of Shareholders, our Board of Directors determined that an advisory vote on named executive officer compensation (commonly referred to as "say-on-pay")will be held every year until the next time shareholders are required to cast an advisory vote on the frequency of the say-on-payvote. Accordingly, we are asking our shareholders to cast an advisory vote on named executive officer compensation at the Annual Meeting, as presented in the Compensation Discussion and Analysis section beginning on page 24 and the compensation tables and associated narrative disclosures beginning on page 33.

Our named executive officer compensation program is designed to attract, motivate and retain our named executive officers, who are critical to our success. The Compensation Committee believes an effective compensation program is one that is designed to recruit and retain executive leadership focused on attaining long-term corporate goals and increasing shareholder value. The Compensation Committee believes that it has taken a responsible approach to compensating our named executive officers.

Please read the Compensation Discussion and Analysis section of this proxy statement as well as the compensation tables and narratives for a more detailed discussion of our executive compensation programs, including information about the fiscal year 2025 compensation of our named executive officers.

We are asking our shareholders to indicate their support for our named executive officer compensation as described in this proxy statement. This proposal gives our shareholders the opportunity to express their views on our named executive officers' compensation. This vote is not intended to address any specific item of compensation, but rather the overall compensation of our named executive officers and the philosophy, policies and practices described in this proxy statement. Accordingly, we will ask our shareholders to vote "FOR" the following resolution at the Annual Meeting:

"RESOLVED, that the Company's shareholders approve, on an advisory basis, the compensation of the named executive officers, as disclosed in the Company's proxy statement for the 2025 Annual Meeting of Shareholders pursuant to the compensation disclosure rules of the Securities and Exchange Commission."

The say-on-payvote is advisory, and therefore not binding on the Company, the Compensation Committee or our Board. Our Board and our Compensation Committee value the opinions of our shareholders and to the extent there is any significant vote against the named executive officer compensation as disclosed in this proxy statement, we will consider our shareholders' concerns and the Compensation Committee will evaluate whether any actions are necessary to address those concerns.

VOTES REQUIRED

Approval of this proposal requires the affirmative vote of a majority of the votes cast by all shareholders entitled to vote on this proposal.

RECOMMENDATION OF THE BOARD OF DIRECTORS

The Board of Directors recommends a vote "FOR" the approval of the compensation of our named executive officers, as disclosed in this proxy statement pursuant to the compensation disclosure rules of the Securities and Exchange Commission.

16

PROPOSAL NO. 4

ADVISORY VOTE ON THE FREQUENCY OF THE ADVISORY

VOTE ON NAMED EXECUTIVE OFFICER COMPENSATION

GENERAL

Section 14A of the Exchange Act, as added by the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010, enables our shareholders to indicate their preference as to how frequently we should seek an advisory vote on the compensation of our named executive officers. By voting on this proposal, shareholders may indicate whether they would prefer an advisory vote on named executive officer compensation once every year, once every two years, or once every three years. Shareholders also may abstain from voting on this proposal.

After careful consideration of this proposal, the Board has determined that an advisory vote on executive compensation that occurs every one year is the most appropriate alternative for the Company, and therefore your Board recommends that you vote for a one year (1-year)frequency for the advisory vote on executive compensation.

In formulating its recommendation, our Board considered that an annual vote will allow shareholders to better evaluate our executive compensation program in relation to our short-term and long-term company performance. Additionally, an annual vote will provide us with timely response to shareholder concerns and the ability to implement appropriate revisions.

The proxy card provides shareholders with the opportunity to choose among four options (holding the advisory vote on executive compensation every one, two or three years, or abstain from voting) and therefore, shareholders will not be voting to approve or disapprove the recommendation of the Board of Directors. You may cast your vote on your preferred voting frequency by choosing the option of once every year ("1 year"), once every two years ("2 years"), once every three years ("3 years"), or you may abstain from voting.

The option of one year, two years or three years that receives the highest number of votes cast by shareholders will be considered the frequency for the advisory vote on executive compensation that is preferred by our shareholders. However, because this vote is advisory and not binding on the Board of Directors or the Company in any way, the Board may decide that it is in the best interests of our shareholders and the Company to hold an advisory vote on executive compensation more or less frequently than the option preferred by our shareholders.

VOTES REQUIRED

The option of one year, two years or three years that receives the highest number of votes cast by shareholders will be considered the frequency for the advisory vote on executive compensation that is preferred by our shareholders.

RECOMMENDATION OF THE BOARD OF DIRECTORS

The Board of Directors recommends a vote for a one year (1-year)frequency for the advisory vote on executive compensation.

17

BOARD COMMITTEES AND MEETINGS

During 2024, the Board of Directors met eight (8) times. Each of our directors attended all meetings held by the Board during such director's term of service in 2024. The Board of Directors has adopted a policy under which each director is encouraged, but not required, to attend each Annual Meeting of Shareholders. In 2024, all of our directors serving on the Board of Directors at the time of our Annual Meeting of Shareholders attended such meeting by telephone.

Effective January 6, 2025, Mr. Gupta resigned as a member of the Board of Directors and the Board of Directors appointed Mr. Nirav Patel as a member of the Board of Directors. The Board of Directors has determined that all current directors, other than Messrs. Wadhwani, Trivedi and Patel, are independent under both the independence criteria for directors established by NYSE American and the independence criteria adopted by the Board of Directors. The independence criteria adopted by the Board of Directors are set forth in the Company's Corporate Governance Guidelines, which are available on the Company's website at http://www.mastechdigital.com/corporate-governance under Investors.

The Company has three standing Committees: an Audit Committee, a Compensation Committee and a Nominating and Corporate Governance Committee. Each of these Committees has a written charter approved by the Board of Directors. A copy of each charter can be found on the Company's website at http://www.mastechdigital.com/corporate-governance under Investors.

Audit Committee

The Board has an Audit Committee currently consisting of Mr. Kandula, Ms. Smith, Mr. Rak and Mr. Nayar, who is the chair of the Committee. All members of this Committee are "independent directors" under the criteria adopted by the Board of Directors and under applicable NYSE American listing standards. The Board of Directors has determined that Mr. Nayar is an "audit committee financial expert" as defined in the applicable rules of the Securities and Exchange Commission ("SEC"). The Audit Committee's duties include reviewing the Company's financial statements as well as earnings press releases and related information, prior to filing or release, selecting the firm of independent accountants to audit the Company's financial statements, reviewing the scope and results of the independent auditors' activities and the fees proposed and charged for such activities, reviewing the adequacy of internal controls, reviewing the scope and results of internal audit activities, and reporting the results of the Committee's activities to the full Board. The Audit Committee met five (5) times during 2024. Each Audit Committee member attended all meetings held by the Audit Committee during such Audit Committee member's term of service in 2024.

Compensation Committee

The Board has a Compensation Committee, currently consisting of Ms. Smith, Mr. Nayar, Mr. Rak and Mr. Kandula, who is the chair of the Committee. Each member of this Committee is an "independent director" under applicable NYSE American listing standards and a "non-employeedirector" as defined in Rule 16b-3under the Securities Exchange Act of 1934, as amended (the "Exchange Act"). The Compensation Committee is responsible for reviewing and approving matters involving the compensation of non-employeedirectors and executive officers of the Company, periodically reviewing management development plans, administering the incentive compensation plans, approving public disclosure on compensation matters, and making recommendations to the full Board on these and other compensation matters. The Compensation Committee met four (4) times in 2024. Each Compensation Committee member attended all meetings held by the Compensation Committee during such Compensation Committee member's term of service in 2024.

Nominating and Corporate Governance Committee

The Board has a Nominating and Corporate Governance Committee currently consisting of Ms. Smith, Mr. Nayar, Mr. Kandula and Mr. Rak, who is the chair of the Committee. Each member of this Committee is an

18

"independent director" under the criteria adopted by the Board of Directors and under the applicable NYSE American listing standards. The Nominating and Corporate Governance Committee is responsible for recommending to the full Board candidates for election to the Board of Directors and for overseeing and making recommendations to the Board on all corporate governance matters.

The Nominating and Corporate Governance Committee will consider director candidates proposed by shareholders. To recommend a prospective nominee for the Nominating and Corporate Governance Committee's consideration, shareholders should submit the candidate's name and qualifications in writing to John J. Cronin, Jr., Corporate Secretary, Mastech Digital, Inc., 1305 Cherrington Parkway, Building 210, Suite 400, Moon Township, PA 15108. The Company's Articles address the proper submission of a person to be nominated and set forth the proper form for a notice of nomination. Please refer to the "2026 SHAREHOLDER PROPOSALS OR NOMINATIONS" section in this Proxy Statement for a summary of the procedures to request a person(s) to be nominated for election as a director of the Company.

The Nominating and Corporate Governance Committee will consider and evaluate candidates submitted by shareholders in accordance with the procedures set forth in the Company's Nominating and Corporate Governance Committee Charter and Corporate Governance Guidelines in the same manner as if such candidates were submitted by the Board of Directors. The Committee screens all potential candidates in the same manner regardless of the source of the recommendation. This assessment will include consideration of background, skills, needs, diversity, personal characteristics and business experience, as set forth in the Nominating and Corporate Governance Charter. The Board and the Nominating and Corporate Governance Committee believe it is essential that Board members represent diverse backgrounds. The Nominating and Corporate Governance Committee met three (3) times in 2024. Each Nominating and Corporate Governance Committee member attended all meetings held by the Nominating and Corporate Governance Committee during such Nominating and Corporate Governance Committee member's term of service in 2024.

Corporate Governance Guidelines

The Board of Directors has adopted a set of Corporate Governance Guidelines, and the Nominating and Corporate Governance Committee is responsible for overseeing the Guidelines and reporting and making recommendations to the Board concerning corporate governance matters. The Corporate Governance Guidelines are posted on the Company's web site at http://www.mastechdigital.com/corporate-governance under Investors. This website also includes the Company's Code of Business Conduct & Ethics and Finance Code of Professional Conduct, which were adopted by the Board of Directors. The Code of Business Conduct and Ethics is the Company's code-of-ethicsdocument for all employees and also applies to all directors with regard to their Company-related activities. The Finance Code of Professional Conduct is intended to be the Company's written code-of-ethicsunder Section 406 of the Sarbanes-Oxley Act of 2002 complying with the standards set forth under Item 406 of Regulation S-Kof the Exchange Act.

Anti-Hedging and Insider Trading Policy

Our directors, officers and employees are required to comply with our Insider Trading Policy and are prohibited from engaging in short sales of Company securities. The Company prohibits hedging activity at the Company level, with the exception of cash flow hedges related to foreign currencies and interest rates. These two permissible hedges require strong justification from management and approval by the Company's Board of Directors before any such transactions can be executed.

Board Leadership Structure

The Company's policy as to whether the same person should serve as both the Chief Executive Officer and Chairman is based on the practice which best serves the Company's needs at any particular time. The Board

19

believes that its current leadership structure, with Messrs. Wadhwani and Trivedi serving as Co-Chairmenand Mr. Patel serving as the President and Chief Executive Officer, is appropriate given each of their respective past business experience.

The Role of the Board in Risk Oversight

In its oversight role, the Board annually reviews the Company's strategic plan, which addresses, among other things, the risks and opportunities facing the Company. The Board also has overall responsibility for executive officer succession planning and reviews succession plans each year. The Board has delegated certain risk management responsibilities to the Board committees. As part of the responsibilities set forth in its charter, the Audit Committee is responsible for discussing with management the Company's major financial risk exposures and the steps management has taken to monitor and control those exposures, including the Company's risk assessment and risk management policies. The Company's management regularly evaluates these controls, and the Chief Financial Officer periodically reports to the Audit Committee regarding their design and effectiveness. The Compensation Committee is responsible for matters involving the compensation of non-employeedirectors and executive officers of the Company and the Nominating and Corporate Governance Committee annually reviews the Company's corporate governance guidelines. Each of these committees regularly report to the full Board.

Communications from Shareholders to the Board of Directors

The Board of Directors recommends that shareholders initiate any communications with the Board of Directors by e-mailor in writing and send them in care of the Corporate Secretary. Shareholders can send communications directly to the Board of Directors by e-mailto [email protected], or by fax to 412-291-3350, or by mail to Mr. John J. Cronin, Jr., Corporate Secretary, Mastech Digital, Inc., 1305 Cherrington Parkway, Building 210, Suite 400, Moon Township, PA 15108. This centralized process will assist the Board of Directors in reviewing and responding to shareholder communications in an appropriate manner. The name of any specific intended Board of Directors recipient should be noted in the communication. The Board of Directors has instructed the Corporate Secretary to forward such correspondence only to the intended recipients; however, the Board of Directors has also instructed the Corporate Secretary, prior to forwarding any correspondence, to review such correspondence and, in his discretion, not to forward certain items if they are deemed of a commercial or frivolous nature or otherwise inappropriate for the Board of Directors' consideration. In such cases, some of those correspondence may be forwarded elsewhere in the Company for review and possible response.

20

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

The following table sets forth certain information regarding beneficial ownership of the Company's Common Stock as of April 4, 2025 for: (i) each person known by the Company to own beneficially more than 5% of the outstanding shares of Common Stock; (ii) each named executive officer listed in the Summary Compensation Table below; (iii) each of our current directors; and (iv) all directors and executive officers of the Company as a group. As of April 4, 2025, there were 11,753,941 shares of Common Stock outstanding. Except as noted, all persons listed below have sole voting and investment power with respect to their shares of stock, subject to community property laws where applicable. Information with respect to beneficial ownership by 5% shareholders has been based on information filed with the SEC pursuant to Section 13(d) or Section 13(g) of the Exchange Act.

21

22

DELINQUENT SECTION 16(A) REPORTS

Section 16(a) of the Exchange Act requires the Company's directors and officers, and persons who own more than 10 percent of a registered class of the Company's equity securities, to file reports of ownership and change in ownership with the SEC and NYSE American. Directors, officers and other 10 percent shareholders are required by SEC regulations to furnish the Company with copies of all Section 16(a) reports that they file.

Based solely on its review of the copies of such reports and amendments thereto provided to the Company, and written representations and information provided to the Company by the reporting persons, the Company believes that during 2024 all section 16(a) reports were timely filed, with the exception of (i) one Form 4 that was filed late by each Mr. Ausura, Mr. Rak, Mr. Watzinger and Ms. Galilee in connection with their restricted stock grant dated January 30, 2024; (ii) one Form 3 that was filed one (1) day late by each of Mr. Srinivas, Ms. Smith, and Mr. Nayar; and (iii) one Form 4 that was filed late by each of Mr. Srinivas, Ms. Smith, and Mr. Nayar in connection with their restricted stock grant dated August 12, 2024.

CERTAIN RELATIONSHIPS AND RELATED PARTY TRANSACTIONS

On September 17, 2020, the Company entered into an amended and restated registration rights agreement (the "A&R Registration Rights Agreement") with Ashok Trivedi, in his individual capacity and as trustee of the Ashok K. Trivedi Revocable Trust (the "Trivedi Trust"), Sunil Wadhwani, in his individual capacity and as trustee of The Revocable Declaration of Trust of Sunil Wadhwani (together with the Trivedi Trust, the "Founder Trusts"), and certain affiliates (the "Founder Affiliates") of Messrs. Trivedi and Wadhwani (collectively, the "Holders"). Pursuant to the terms of the A&R Registration Rights Agreement, the Company is required, upon receipt of a written request from a Holder (a "Demand Request"), to use commercially reasonable efforts to prepare and file a registration statement with the Securities and Exchange Commission (the "SEC") within 45 days of receipt of a Demand Request to register the resale of the registrable securities requested to be registered by the requesting Holders and to use commercially reasonable efforts to have such registration statement declared effective within 90 days after it is filed with the SEC. The A&R Registration Rights Agreement also provides the Holders certain piggy-back registration rights for the registrable securities they hold in the event the Company proposes to file certain registration statements with the SEC. The A&R Registration Rights Agreement further provides that in the event a Holder desires to offer and/or sell registrable securities on a block trade or underwritten basis without substantial marketing efforts prior to pricing (a "Block Trade"), the Company will use its reasonable best efforts to facilitate such Block Trade.

EXECUTIVE OFFICERS

In addition to Mr. Patel, whose positions and background are discussed under "Business Experience of Directors", the following person is an executive officer of the Company as of the date of this Proxy Statement.

John J. Cronin, Jr., age 72, has served as Chief Financial Officer and Corporate Secretary of the Company since September 2008. Mr. Cronin functioned as Mastech Digital Technologies, Inc.'s Chief Financial Officer since 2002. From 1998 to 2002, Mr. Cronin held several senior corporate positions within iGATE. Prior to joining iGATE in August 1998, Mr. Cronin was the Chief Financial Officer at Industrial Ceramics, Inc. since February 1993. Mr. Cronin has an M.B.A. degree from the University of Pittsburgh and holds C.P.A. and C.M.A certifications.

On March 31, 2025, Mr. Cronin submitted his resignation from his role as Chief Financial Officer of the Company, effective as of April 14, 2025 (the "Effective Date"). Mr. Cronin will remain an employee of the Company through May 30, 2025, to assist with the transition to the new Chief Financial Officer. In addition, on

23

March 31, 2025, the Board appointed Kannan Sugantharaman as the Company's Chief Financial Officer and Chief Operations Officer, effective as of the Effective Date. For additional details regarding Mr. Cronin's resignation as the Company's Chief Financial Officer and Mr. Sugantharaman's appointment as the Company's Chief Financial Officer and Chief Operations Officer, including details of the terms of Mr. Sugantharaman's employment agreements, see the Form 8-K filed by the Company with the SEC on April 4, 2025.

There are no family relationships between or among any of the Company's Directors or executive officers. The Company's executive officers serve at the discretion of the Board and pursuant to the terms of their respective employment agreements.

COMPENSATION DISCUSSION AND ANALYSIS

The following compensation discussion and analysis summarizes the Company's philosophy and objectives regarding the compensation of its named executive officers, including how the Company determines elements and amounts of executive compensation. The following discussion and analysis should be read in conjunction with the tabular disclosures regarding the compensation of named executive officers for fiscal 2024 and the report of the Compensation Committee of the Board of Directors, which immediately follows below.

Compensation Committee Roles and Responsibilities

The Compensation Committee is responsible for reviewing and approving matters involving the compensation of non-employeedirectors and executive officers of the Company, as described herein. The Compensation Committee is also responsible for periodically reviewing management development plans, approving public disclosure on compensation matters, making recommendations to the full Board on these and other compensation matters, and administering the Company's Restated Stock Incentive Plan, as amended (the "Plan") and the 2024 Inducement Stock Incentive Plan.

It is the responsibility of the Compensation Committee to ensure that the total compensation paid to such officers is fair, reasonable and competitive. The Compensation Committee is composed entirely of independent directors and functions in accordance with the provisions of the Compensation Committee Charter, which is available on the Company's website at http://www.mastechdigital.com, under Investors.

The Compensation Committee has established a framework and compensation philosophy, pursuant to which decisions are made involving the compensation of all executive officers of the Company. This framework ensures that the total compensation paid to such executive officers is fair, reasonable and competitive in the judgment of the Compensation Committee. The Compensation Committee reviews, establishes, and approves all elements of compensation paid to the Chief Executive Officer ("CEO") and the Chief Financial Officer ("CFO"). The Compensation Committee has delegated authority to the CEO to make determinations of appropriate salary and bonus amounts to other Company executives, provided such amounts conform to the framework established by the Compensation Committee. No other executive officers have a role in making executive officer compensation determinations.

Named Executive Officers

The Company's named executive officers for the 2024 fiscal year consisted of Mr. Gupta and Mr. Cronin. Effective January 6, 2025, Mr. Gupta resigned as the Company's President and Chief Executive Officer and as a member of the Board of Directors, and Mr. Nirav Patel was appointed the Company's President and Chief Executive Officer and as a member of the Board of Directors.

Compensation Philosophy for Named Executive Officers

The Compensation Committee has adopted a compensation philosophy with respect to the named executive officers that supports the Company's belief that a strong executive management team, comprised of talented

24

individuals in key positions, is critical to the development and growth of our business and to the creation of shareholder value. Accordingly, our executive officer compensation program is designed to attract, motivate and retain high-quality executives by providing total compensation that is performance-based and competitive with the markets and industries in which we compete for talent. A core objective guiding our executive officer compensation program is to emphasize pay-for-performanceby linking compensation levels to shareholder value creation. Thus, we provide incentives to advance the interest of shareholders by targeting key financial and operational objectives for our named executive officers and deliver levels of compensation that are commensurate with the achievement of such performance measurements. Additionally, we provide long-term equity incentive awards to mitigate short-term risk-taking by our executives at the expense of long-term shareholder value. Our goals are:

The Compensation Committee has established a compensation structure to achieve these goals through a combination of three key compensation elements:

The Compensation Committee believes that this three-prong approach best serves the interests of our shareholders and safeguards against excessive risk-taking by our executives. This approach enables us to meet the requirements of the competitive environment in which we operate, while ensuring that executives are compensated in a manner that advances both the short and long-term interests of our shareholders. Under this program design, compensation for our executive officers involves a high proportion of pay that is "at risk", namely the annual performance-based cash bonus and the value of stock options and/or stock awards.

Opportunities for excessive risk-taking by our executive officers, for short-term financial gain, are limited by the nature of our business. The element of compensation most exposed to self-serving actions by our executive officers is the annual performance-based cash bonus. In establishing specific performance criteria for the Company's executive officers, consideration is given to "trade-off"criteria which would mitigate self-serving actions by any individual executive. Additionally, organizational interaction and formal approval processes make it difficult for self-serving actions to be undertaken by any individual executive. While there is always the opportunity in every organization to manage for the short term, the Compensation Committee believes that the equity-based component of compensation is a strong deterrent of such action. Based on its annual risk-related review, including the above program structure considerations, the combination of long and short-term programs, and possible compensation-based risks and means by which such risks may be mitigated, including through the operation of internal control structure and oversight, the Compensation Committee has determined that the Company's compensation policies and practices for its employees are not reasonably likely to have a material adverse effect on the Company.

Key Elements of and Factors Affecting Compensation

As discussed above, the three key elements of the named executive officer compensation are: (a) base salary; (b) annual performance-based cash bonus; and (c) equity compensation. While each of these elements is discussed separately below, the Compensation Committee does consider and reviews the full compensation package afforded by the Company to its named executive officers. The Compensation Committee also reviews all executive employment contracts and the annual performance-based goals and objectives of our named executive officers.

25

Compensation Benchmarking

In the professional services industry, industry peers have operational attributes that are very different from Mastech Digital, which makes it challenging to engage in compensation benchmarking. The Company does look to various third-party reports and projections regarding the staffing industry, such as Staffing Industry Analysts ("SIA"), for general reference in establishing the Company's annual financial and operational objectives but generally does not use any specific "benchmark" in making compensation decisions.

In 2021, the Compensation Committee engaged Veritas Executive Compensation Consultants, LLC on a limited basis to help with an internal review of executive compensation to ensure that existing total compensation levels, and the delivery of such, were appropriate and competitive in today's marketplace. The conclusion of this review suggested that executive cash compensation was in the appropriate range of the benchmark averages. With respect to equity compensation, the Compensation Committee is working on an equity structure that strengthens our ability to attract and retain key talent and at the same time aligns compensation over a multi-year period directly tied with the interests of our shareholders, which is the creation of long-term shareholder value. No formal executive compensation benchmarking was done in 2022, 2023 or 2024.

Prior to 2021 and for the years 2022, 2023 and 2024, the Compensation Committee completed an annual informal analysis on the competitive marketplace with respect to the Company's CEO and CFO. In addition to evaluating peer group compensation data, the Committee considered the performance of these individuals and their additional levels of responsibility. These informal valuations are approved by the full Board and are factored into the Compensation Committee's annual compensation changes with respect to our named executive officers.

Base Salaries for Named Executive Officers

The Company provides its named executive officers with a base salary to provide them with a minimum guaranteed compensation level for their services. The CEO and CFO's base salary is determined by the Compensation Committee by evaluating the responsibilities of the position held, the individual's experience and, to the extent possible, the competitive marketplace for executive talent. The base salary is intended to be competitive with base salaries paid to comparable officers at peer group companies with similar qualifications, experience and responsibilities.

In setting base salaries for the CEO and CFO, the Compensation Committee gives consideration to the following:

The Compensation Committee has delegated authority to the CEO to make determinations on appropriate base salaries for executive officers of the Company other than the CEO, provided the amounts are within the framework and philosophy set forth by the Compensation Committee discussed above.

Annual Bonuses for Named Executive Officers

In addition to a base salary, each named executive officer is eligible for an annual performance-based cash bonus. The Company has chosen to include annual performance-based cash bonuses as a material element in its

26

compensation program. This bonus component is designed to motivate individual and team performance in attaining the current year's financial plan and business objectives. The Compensation Committee makes final determinations of annual performance-based bonuses for the CEO and CFO.

In 2024, annual performance-based cash bonuses earned by the Company's named executive officers were as follows: Mr. Gupta earned $407,791 or approximately 145% of his "at goal" bonus amount. Mr. Cronin earned $266,076 or approximately 145% of his "at goal" bonus amount. The specific performance objectives, achievement of actual results and the corresponding bonus payout applicable to each objective for our named executive officers are listed below:

Claw back Policy for Certain Incentive Compensation

The Company has adopted a Claw Back Policy which provides for the recovery of certain incentive compensation paid to our executive officers in the event of an accounting restatement. The Claw back Policy is effective as of December 1, 2023, and applies to any incentive-based compensation paid to our executive officers on or after October 2, 2023, even if this compensation was approved, awarded or granted to the executive officers prior to that date.

For purposes of the Claw back Policy, an accounting restatement is defined as a restatement of the Company's financial statements due to a material noncompliance with any financial reporting requirement under securities law, including any required accounting restatement to correct an error in previously issued financial statements that is material to the previously issued financial statements, or that would result in a material misstatement if the error were corrected in the current period or left uncorrected in the current period. In the event of an accounting restatement, the claw back amount would be the amount of incentive-based compensation previously received that exceeds the amount of incentive-based compensation that otherwise would have been received had it been determined based on the restated amounts. Incentive-based compensation is defined as any compensation that is granted, earned or vested based wholly or in part upon the attainment of a "Financial Reporting Measure". Incentive-based compensation is "received" for purposes of the Claw back Policy in the Company's fiscal period during which the financial reporting measure specified in the incentive-based compensation award is attained, even if the payment or grant occurs after the end of that period.

The claw back period for purposes of our Claw back Policy means the three completed fiscal years immediately preceding that date on which the Company is required to prepare an accounting restatement. In the event of an accounting restatement, the Board will determine the amount of any erroneously awarded

27

compensation for each executive officer in connection with that accounting restatement and the timing and method for promptly recouping that erroneously awarded compensation. Under the Claw back Policy, the Company is not permitted to indemnify any executive officers against the loss of any erroneously awarded compensation, and each executive officer of the Company is required to sign and retuto the Company within thirty (30) calendar days following the later of (a) the effective date of the Claw back Policy or (b) the date such individual becomes an executive officer, an acknowledgement form, pursuant to which the executive officer agrees to be bound by, and to comply with, the terms and conditions of the Claw back Policy. The Claw back Policy is administered by the Compensation Committee, as designated by our Board of Directors, and any determinations made by the Compensation Committee are final and binding on all affected individuals.

The Claw back Policy is designed to comply with, and is to be interpreted to be consistent with, Section 10D of the Securities Exchange Act of 1934, as amended, and Section 811 of the NYSE American Company Guide.

Policies and Practices Related to the Grant of Certain Equity Awards

From time to time, the Company awards stock options to its employees, including the named executive officers. Historically, the Company has awarded new-hireoption grants on or soon after a new hire's employment start date and periodic annual refresh employee option grants, which refresh grants are typically approved at a meeting of the Compensation Committee. Independent directors receive automatic initial and annual stock option grants, at the time of a director's appointment or election to the board and during the first quarter of each fiscal year, respectively. For additional information regarding the compensation of our independent directors, see below under the heading, "Director Compensation". Except for the foregoing policies, the Company does not have a formal policy on the timing of awards of stock options, stock appreciation rights, or similar instruments with option-like features. The Compensation Committee considers whether there is any material nonpublic information ("MNPI") about the Company when determining the timing and terms of stock option awards and generally does not time the grant of stock options in relation to the Company's public disclosure of MNPI. The Company has not timed the release of MNPI for the purpose of affecting the value of executive compensation.

2024 Base Salary and Bonus Opportunity Increases for Named Executive Officers:

During 2024, our named executive officers received base salary and/or performance-based bonus opportunities as detailed below:

In determining these compensation adjustments, the Compensation Committee considered its informal analysis on the competitive marketplace as further described under the caption "compensation benchmarking".

Stock Incentive Plan and Awards to Named Executive Officers

The Company's long-term incentives are in the form of equity awards, such as stock options, stock appreciation rights, restricted or unrestricted stock awards and restricted stock unit "performance share" award grants, in accordance with the Plan. The objective of this compensation element is to align compensation over a multi-year period directly with the interests of our shareholders, by motivating and rewarding actions that create long-term shareholder value. The Committee believes that this compensation component also provides a strong deterrent from excessive risk-taking to achieve short-term financial rewards.

In determining the size and types of awards to be granted, the Compensation Committee considers an evaluation of competitive factors, including general reference to industry practices, in conjunction with total

28

compensation provided to the named executive officers, the recommendations of the CEO (except with respect to himself), as well as both Company and individual performance levels and the patterns and impact of prior awards.

During 2024, the Company issued no stock options or other equity grants to its named executive officers.

2024 Inducement Stock Incentive Plan

On December 10, 2024, our Board of Directors approved and adopted the 2024 Inducement Stock Incentive Plan, and subject to the adjustment provisions of the 2024 Inducement Stock Incentive Plan, reserved 1,500,000 shares of Common Stock for issuance of awards under the 2024 Inducement Stock Incentive Plan. The 2024 Inducement Stock Incentive Plan was approved and adopted without shareholder approval pursuant to NYSE American Company Guide Rule 711. The 2024 Inducement Stock Incentive Plan provides for grants of non-qualified stockoptions, restricted stock awards, stock awards, performance share awards and other stock-based awards (each, an "Inducement Award"). Each Inducement Award is intended to qualify as an employment inducement award under NYSE American Company Guide Rule 711(a). In accordance with NYSE American Company Guide Rule 711(a), the 2024 Inducement Stock Incentive Plan will be used exclusively for the grant of equity awards to individuals who were not previously employees or directors of the Company, or following a bona fide period of non-employment, asan inducement material to entering into employment with the Company. As of the Record Date, approximately 800,000 shares of Common Stock remain available for issuance under the 2024 Inducement Stock Incentive Plan.

At our 2025 Annual Meeting of Shareholders, we are seeking shareholder approval to amend the Plan to increase the number of shares of common stock that may be issued pursuant to the Plan by 800,000 shares, to a total of 6,200,000 shares. If approved, the 2024 Inducement Stock Incentive Plan will be terminated effective as of the effective date of that amendment to the Plan. For additional details, please see Proposal No. 2.

Further details of the Company's equity awards are set forth in the table entitled "Grants of Plan-Based Awards".

Employment Agreements

Detailed below are the terms and conditions of the employment agreements currently in place for our Named Executive Officers and our current President and Chief Executive Officer.

Mr.Patel, Mastech Digital Technologies, Inc. and the Company are parties to an Employment Agreement effective January 6, 2025 (the "Effective Date"), which provides for an annual base salary of $1,000,000 and an annual performance-based cash bonus with an "at goal" target amount of $500,000 for fiscal year 2025. Under this agreement, Mr. Patel also received a cash signing bonus of $2,000,000, less applicable withholdings, within 30 days of the Effective Date. If Mr. Patel voluntarily terminates his employment with the Company without "Good Reason", or the Company terminates him for "Cause", in each case on or before the fourth anniversary of the Effective Date, Mr. Patel is required to repay all or a portion of the signing bonus accordance with the terms of the Employment Agreement. On the Effective Date, Mr. Patel received an award of non-qualifiedstock options to purchase up to 702,358 shares of the Company's common stock for a per share exercise price equal to the closing price of the Company's Common Strock on the NYSE MKT on the Effective Date, subject to the terms and conditions set forth in the underlying Stock Option Agreement. Mr. Patel is also eligible to receive additional non-qualifiedstock options and other awards pursuant to the Company's Stock Incentive Plan in a manner and amount determined by the Compensation Committee. In the event that Mr. Patel is terminated without "cause" or he resigns for "good reason" (in each case, other than within 12 months after a "change of control" of the Company), Mr. Patel is entitled to a severance equal to 12 months of his then current monthly base salary, as well as continued coverage under the Company's medical benefit plan, with the Company paying

29

the excess of Mr. Patel's cost for COBRA coverage over the cost he would have paid for group health plan coverage as an active executive of the Company for the earlier of 18 months or when Mr. Patel becomes eligible for other group health benefits from a subsequent employer.

Mr.Gupta, Mastech Digital Technologies, Inc. and the Company are parties to a Fifth Amended and Restated Employment Agreement effective March 8, 2024, which provided for an annual base salary of $585,000 and an annual performance-based cash bonus with an "at goal" target amount of $282,000 for fiscal year 2024. Under this agreement, Mr. Gupta was also eligible to receive non-qualifiedstock options and other awards pursuant to the Plan in a manner and amount determined by the Compensation Committee. Mr. Gupta's agreement provided that, in the event that he was terminated without "cause" or he resigned for "good reason" (in each case, other than within 12 months after a "change of control" of the Company), Mr. Gupta was entitled to a severance equal to 24 months of his then current monthly base salary, as well as two times (2X) his annual performance-based cash bonus target for the year in which his termination occurred. This agreement also provided that, in the event of Mr. Gupta's termination by the Company without "cause" or Mr. Gupta's termination for "good reason", in each case within 12 months after a "change of control", Mr. Gupta was entitled to a lump sum severance payment equal to two times (2X) the sum of (i) his then current annual base salary and (ii) his annual performance-based cash bonus target for the year in which his termination occurs. Mr. Gupta was also entitled to acceleration in full of all outstanding stock options or other equity awards issued pursuant to the Plan.

On December 10, 2024, Mr. Gupta submitted his resignation from his roles as President and Chief Executive Officer of the Company and as a member of the Company's Board of Directors, each effective as of January 6, 2025. In connection with this resignation, the Company and Mr. Gupta entered into a Confidential Separation Agreement and General Release setting forth the terms of Mr. Gupta's separation from the Company. The terms of this agreement provide for the Company to pay Mr. Gupta (i) 24 months of his monthly base salary, less appropriate deductions, over a 24-monthperiod following Mr. Gupta's termination date; and (ii) two times (2X) his annual performance-based cash bonus target for the year 2024, less appropriate deductions, one half of which was paid on April 29, 2025 and the second-half of which is payable within 60 days of the anniversary of Mr. Gupta's termination date. Additionally, Mr. Gupta is entitled to continued coverage under the Company's group health plans pursuant to COBRA for 18 months following his termination, at a cost that is equal to the excess of the cost he would have paid for group health coverage as an active Company executive. Mr. Gupta is also entitled (i) for a period of 12 months, to continued vesting of the unvested stock options he held on his termination date; and (ii) for the exercise period of the vested stock options held by Mr. Gupta on his termination date (including those unvested options that are vesting for 12 months following his termination date) to be extended for a period of 18 months after completion of all vesting. Mr. Gupta is also entitled to receive a cash payment equal to two-twelfthsof his annual target bonus for the year 2025, less appropriate deductions, on the 60^th day following his termination.

Mr.Cronin, Mastech Digital Technologies, Inc. and the Company are parties to a Fourth Amended and Restated Employment Agreement effective March 8, 2024, which provides for an annual base salary of $450,000 and an annual performance-based cash bonus with an "at goal" target amount of $184,000 for fiscal year 2024. Mr. Cronin is also eligible for standard company benefits in the same manner as other Company executives. In the event that Mr. Cronin is terminated without "cause" or he resigns for "good reason" (in each case, other than within 12 months after a "change of control" of the Company), Mr. Cronin is entitled to a severance equal to 24 months of his then current monthly base salary, as well as two times (2X) his annual performance-based cash bonus target for the year in which his termination occurs. In the event of termination by the Company without "cause" or Mr. Cronin's termination for "good reason", in each case within 12 months after a "change of control", Mr. Cronin is entitled to a lump sum severance payment equal to two times (2X) the sum of (i) his then current annual base salary and (ii) his annual performance-based cash bonus target for the year in which his termination occurs. Mr. Cronin is also entitled acceleration in full of all outstanding stock options or other equity awards issued pursuant to the Plan.

30

Change of Control/Severance Benefits

In addition to the Change of Control/Severance benefits discussed in the "Employment Agreements" section above, outstanding stock options or other equity awards issued pursuant to the Plan or the 2024 Inducement Stock Incentive Plan, held by the named executive officers, may under certain circumstances vest upon a "Change of Control" of the Company.

The estimated payments to be made by the Company to the named executive officers in the event of a termination as of December 31, 2024, including the continued vesting of equity grants, post termination, are set forth in the Table entitled "Potential Payments Upon Termination or Change in Control" on page 38 of this Proxy Statement.

Other Considerations

Retirement Benefits

Each of the named executive officers is entitled to participate in the Company's tax-qualifieddefined contribution 401(k) plan on the same basis as all other eligible employees. Under the terms of the 401(k) plan, as prescribed by the Code, the 401(k) contribution of any participating employee is limited to a maximum percentage of annual pay or a maximum dollar amount ($23,000 for 2024, subject to a $7,500 increase for participants who are age 50 or older).

Perquisites

The Company does not have a formal program providing perquisites for its executive officers.

Consideration of Say-On-PayAdvisory Vote

At our 2024 annual meeting of shareholders, approximately 94.94% of our shareholders who voted on the "say-on-pay"advisory proposal approved the compensation we pay to our named executive officers. The Compensation Committee considered the result of this vote in determining the Company's compensation policies and decisions and believes that the nearly unanimous shareholder vote strongly supports our current compensation philosophy. Therefore, we have not modified our general compensation practices or philosophy in any manner as a result of the 2024 shareholder advisory vote.

Tax Deductibility of Compensation

Prior to the enactment of the Tax Cuts and Jobs Act on December 22, 2017, Section 162(m) of the Code generally provided that the Company could not deduct, for federal income tax purposes, compensation in excess of $1,000,000 for any given year paid to its chief executive officer and the other three most highly compensated named executive officers employed at the end of the year (each a "covered executive") (other than its chief financial officer) except to the extent such excess constituted performance-based compensation. In the course of structuring its compensation policies, the Compensation Committee considers ways to maintain the tax deductibility of executive officer compensation; however, the Compensation Committee retains the discretion to compensate executives in a manner that it deems best suited to our compensation objectives and philosophy.

In general, the Compensation Committee's previous standard policy was to structure compensation arrangements in a manner that would avoid the deduction limitations of Section 162(m), except where it determined that exceeding these limitations was in the best interests of the Company and its shareholders. The Plan has been structured with the intention that stock options and, generally, performance-based awards granted under the Plan qualify as "performance-based compensation," which compensation was, prior to the enactment of the Tax Cuts sand Jobs Act, generally exempt from the limitations on deduction.

The Tax Cuts and Job Act, which was signed into law on December 22, 2017, eliminates the exemption for "performance-based compensation" under Section 162(m) with respect to taxable years beginning after

31

December 31, 2017 and also expands the Section 162(m) limitation to include the Chief Financial Officer and any person who was a covered executive in 2017 or later. By eliminating the "performance-based compensation" exception, effective as of January 1, 2018, we are no longer be able to structure executive compensation paid to certain executive officers in excess of $1,000,000 as "performance-based compensation" under Section 162(m) to preserve the deductibility of that compensation (unless the compensation is provided pursuant to a written binding contract which was in effect on November 2, 2017, and which was not modified in any material respect on or after November 2, 2017). Rather, beginning January 1, 2018, compensation paid to certain executive officers in excess of $1,000,000 is generally not deductible unless such compensation is pursuant to an award established in a binding contract in effect on November 2, 2017 and not materially modified after such date.

The following Compensation Committee Report is not considered proxy solicitation material and is not deemed filed with the SEC. Notwithstanding anything to the contrary set forth in any of our previous filings made under the Securities Act of 1933, as amended, and under the Exchange Act that might incorporate future filings made by the Company under those statutes, the Compensation Committee Report will not be incorporated by reference into any such prior filings or into any future filings made by the Company under those statutes.

Compensation Committee Report

The Compensation Committee reviewed this Compensation Discussion and Analysis and discussed its contents with Company management. Based on the review and discussion, the Committee has recommended to the Board that this Compensation Discussion and Analysis be included in this Proxy Statement and incorporated by reference in our Annual Report on Form 10-Kfor the fiscal year ended December 31, 2024.

The Compensation Committee

Srinivas Kandula, Chair

Arun Nayar

Vladimir Rak

Bonnie K. Smith

32

SUMMARY COMPENSATION TABLE

The following table sets forth certain information with respect to the annual and long-term compensation of the individuals who served as named executive officers of the Company during the three fiscal years ended December 31, 2024 (collectively the "named executive officers").

GRANTS OF PLAN-BASED AWARDS

There were no equity grants to our named executive officers for the fiscal year ended December 31, 2024.

33

OUTSTANDING EQUITY AWARDS AT FISCAL YEAR-END

The following table sets forth the number of underlying securities, exercise price and expiration dates of stock options, and restricted shares that have not yet vested, held by our named executive officers as of December 31, 2024.

OPTION EXERCISES AND STOCK VESTED

There were no stock options exercised in 2024 by any named executive officer.

34

POTENTIAL PAYMENTS UPON TERMINATION OR CHANGE IN CONTROL

The following table shows the potential incremental payments and benefits which our named executive officers at December 31, 2024, would be entitled to receive upon termination of employment under their respective agreements. The amounts shown in the table are based on an assumed termination as of December 31, 2024, exclude payments and benefits that are provided on a non-discriminatorybasis to our employees generally upon termination of employment and represent estimates of the incremental amounts that would be paid to each executive upon his termination based on base salary, if applicable, the annual performance-based bonus at the "at goal" target amount as of December 31, 2024, and our current premium costs for medical and welfare benefits. In addition, under the terms of our current year annual performance-based plan, our executives would become entitled to a bonus, determined under the plan terms, if they remained employed as of December 31 of the applicable year. As such, we would not consider the current year bonus payable to a named executive officer with a December 31 termination date to be a payment based upon termination, and no such payments have been included in this section. Further, if any of our named executive officers was terminated without cause by the Company during the calendar year, he would become entitled to a pro-ratabonus based upon the period of his employment during the year, with the amount determined based upon actual Company performance and payable when bonuses are generally paid in the following calendar year.

All calculations were estimated based upon a December 31, 2024 termination scenario. The measurement date for the estimated Company equity awards was based upon a closing price of $14.90 at December 31, 2024.

38

39

DIRECTOR COMPENSATION

The following table provides information concerning the compensation of our independent Directors for fiscal year 2024:

40

Messrs. Wadhwani, Trivedi and Gupta, as non-independentdirectors, received no compensation for their service as Directors of the Company.

All of our Directors are reimbursed for reasonable travel expenses incurred in connection with attending Board and committee meetings.

COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION

At December 31, 2024, the Compensation Committee consisted of Mr. Nayar, Mr. Rak, Ms. Smith, and Mr. Kandula, with Mr. Kandula as chair. No member of this Committee was at any time during the 2024 fiscal year, or at any other time, an officer or employee of the Company, and no member had any relationships with the Company requiring disclosure under Item 404 of Regulation S-Kof the Exchange Act. No named executive officer of the Company has served as a director or member of the Compensation Committee (or other Committee serving an equivalent function) of any other entity, one of whose named executive officers served as a director or member of the Compensation Committee of the Company.

REPORT OF THE AUDIT COMMITTEE

This Audit Committee Report shall not be deemed to be "soliciting material" or to be "filed" with the Securities and Exchange Commission nor shall this information be incorporated by reference into any future filing under the Securities Act of 1933 or the Securities Exchange Act of 1934, each as amended, except to the extent that the Company specifically incorporates it by reference into a filing.

The Audit Committee reviews the Company's financial reporting process on behalf of the Board. In addition, the Audit Committee selects the Company's independent public accountants. The Company's management was previously granted authority by the Audit Committee to hire the Company's audit firm for permissible, non-auditservice projects under $10,000 in fees per engagement and to notify the Audit Committee at the next regularly scheduled meeting of any such project awarded to the audit firm. Projects expected to be greater than $10,000 must be pre-approvedby the Audit Committee in advance of the commencement of any work.

Management is responsible for the Company's internal controls and the financial reporting process. The independent public accountants are responsible for performing an independent audit of the Company's financial statements in accordance with generally accepted accounting standards and to issue a report thereon. The Audit Committee's responsibility is to oversee these processes.

In this context, the Audit Committee has met and held discussions with management and the independent public accountants. Management represented to the Audit Committee that the Company's financial statements were prepared in accordance with generally accepted accounting principles and the Audit Committee has reviewed and discussed the audited financial statements with management and the independent public accountants. The Audit Committee discussed with the independent public accountants the matters required to be discussed by the applicable requirements of the Public Company Accounting Oversight Board.

During 2024, Company management documented, tested and evaluated the Company's internal control over financial reporting pursuant to the requirements of Section 404 of the Sarbanes-Oxley Act of 2002. The Audit Committee was kept apprised of the Company's progress by management. At the conclusion of this assessment,

41

management provided the Audit Committee with its report on the effectiveness of the Company's evaluation which was included in the Company's Annual Report on Form 10-Kfor the year ended December 31, 2024. Company management concluded that the Company did maintain effective internal control over financial reporting at December 31, 2024.

In addition, the Audit Committee has discussed with the independent public accountants the auditor's independence from the Company and its management and has received the written disclosures and the letter from the independent accountants required by applicable requirements of the Public Company Accounting Oversight Board regarding the independent public accountants' communications with the Audit Committee concerning independence. The Company paid its independent public accountants $472,000 for services provided in 2024.

The Audit Committee discussed with the Company's independent public accountants the overall scope and plans for their audits. The Audit Committee meets with the independent public accountants, with and without management present, to discuss the results of their examinations, the evaluations of the Company's internal controls, and the overall quality of the Company's financial reporting.

Based upon the Audit Committee's discussions with management and independent public accountants and the Committee's review of the representations of management and the report of the independent public accountants to the Audit Committee, the Audit Committee recommended that the Board include the audited financial statements in the Company's Annual Report on Form 10-Kfor the year ended December 31, 2024, for filing with the Securities and Exchange Commission.

Respectfully submitted,

The Audit Committee

Arun Nayar, Chair

Srinivas Kandula

Vladimir Rak

Bonnie K. Smith

42

INDEPENDENT REGISTERED PUBLIC ACCOUNTANTS

Principal Accountant Fees and Services

Fees billed to us by the firm UHY LLP ("UHY") for services rendered for 2024 and 2023 in the following categories and amounts were:

Audit fees for 2024 and 2023 totaled $308,500 and $318,000, respectively. This category includes the audit of the Company's annual financial; review of financial statements included in the Company's Form 10-QQuarterly Reports; and services that are normally provided by the independent auditors in connection with statutory and regulatory filings and are inclusive of reimbursement of travel and travel-related expenses. The audit-related fees for 2024 and 2023 totaled $23,000 and $21,000, respectively, and pertained to the audit of the Company's 401(k) Plan and Employee Stock Purchase Plan for both years. The tax fees for 2024 and 2023 totaled $140,500 and $127,000 and pertained to transfer pricing studies prepared across our entire organization and the preparation of all federal and state U.S. tax returns.

Policy on Audit Committee Pre-Approvalof Audit and Non-AuditServices of Independent Auditors

The Audit Committee's policy is to pre-approveall audit and non-auditservices provided by the independent auditors. These services may include audit services, audit-related services, tax services and other services. Pre-approvalis generally provided for up to one-yearand any pre-approvalis detailed as to the particular service or category of services and is generally subject to a specific budget. Management is required to periodically report to the Audit Committee regarding the extent of services provided by the independent auditors in accordance with this pre-approval,and the fees for the services performed to date. Of the total fees paid to the independent auditors in 2024, 100% of these fees were pre-approvedby the Audit Committee.

Representatives of UHY are expected to be available at the annual meeting of shareholders to respond to appropriate questions and will have an opportunity to make comments if they desire to do so.

POLICIES AND PROCEDURES FOR APPROVING RELATED PERSON TRANSACTIONS

Pursuant to the charter of the Audit Committee, all material transactions relating to related person transactions are to be approved by the Audit Committee, which is comprised of disinterested members of the Board of Directors.

43

2026 SHAREHOLDER PROPOSALS OR NOMINATIONS

Proposals of shareholders intended to be presented at the 2026 Annual Meeting of Shareholders must be received by the Company at its principal office in 1305 Cherrington Parkway, Building 210, Suite 400, Moon Township, PA 15108, not later than December 16, 2025 and must otherwise comply with the requirements of Rule 14(a)-8under the Exchange Act for inclusion in the Proxy Statement for that meeting.

The Company's Articles provide that advance written notice of shareholder-proposed business intended to be brought before an annual meeting of shareholders must be given to the Secretary of the Company not less than 120 days in advance of the meeting at which the business is proposed to be transacted; provided, however, that in the event that less than 130 days' notice or prior public disclosure of the date of the annual meeting is given, notice from the shareholder of business to be transacted must be received not later than the tenth day following the date on which notice of the date of the annual meeting was mailed or public disclosure was made, whichever first occurred.

The Company's Articles also provide that a shareholder may request that persons be nominated for election as directors by submitting written notice thereof, together with the written consent of the persons proposed to be nominated consenting to serve as a director of the Company if so nominated, to the Secretary of the Company not less than 120 days prior to the date of the annual meeting; provided, however, that in the event that less than 130 days' notice or prior public disclosure of the date of the annual meeting is given, notice from the shareholder of the nomination must be received not later than the tenth day following the date on which such notice of the date of the annual meeting was mailed or public disclosure was made, whichever first occurred. To be in proper form, the notice of nomination must set forth: (i) the names and addresses of the shareholder proposing the nomination and each proposed nominee; (ii) a representation that the shareholder is a holder of record of stock of the Company entitled to vote at such meeting and that the shareholder intends to appear in person or by proxy at the meeting to nominate the person or persons specified in the notice; (iii) a description of all arrangements or understandings between the shareholder and each nominee and such other information regarding each proposed nominee pursuant to which the nomination or nominations are to be made by the shareholder; and (iv) such other information regarding each proposed nominee as would be required to be included in a proxy statement filed pursuant to the proxy rules of the SEC had the nominee been nominated by the Board of Directors.

FORM 10-K

A copy of the Company's Annual Report to Shareholders for the year ended December 31, 2024, as well as the Company's Annual Report on Form 10-K(without exhibits) for the year ended December 31, 2024, as filed with the SEC on March 14, 2025, is being mailed to the shareholders with this Proxy Statement. Exhibits will be provided upon request and payment of an appropriate processing fee.

HOUSEHOLDING OF PROXY MATERIALS

The SEC has adopted rules that permit companies and intermediaries (e.g., brokers) to satisfy the delivery requirements for proxy statements and annual reports with respect to two or more shareholders sharing the same address by delivering a single proxy statement and annual report addressed to those shareholders. This process, which is commonly referred to as "householding," potentially means extra convenience for shareholders and cost savings for companies.

This year, a number of brokers with account holders who are Mastech Digital shareholders will be "householding" our proxy materials. A single Annual Report and Proxy Statement will be delivered to multiple shareholders sharing an address unless contrary instructions have been received from the affected shareholders. Once you have received notice from your broker that they will be "householding" communications to your

44

address, "householding" will continue until you are notified otherwise or until you revoke your consent. If, at any time, you no longer wish to participate in "householding" and would prefer to receive a separate Proxy Statement and Annual Report, you may:

We will promptly deliver, upon request to the Mastech Digital e-mail,fax number or address listed above, a separate copy of the annual report and Proxy Statement to a shareholder at a shared address to which a single copy of the documents was delivered. If you currently receive multiple copies of the Proxy Statement at your address and would like to request "householding" of these communications, please contact your broker if you are not a shareholder of record; or contact our Corporate Secretary if you are a shareholder of record, using the contact information above.

WHERE YOU CAN FIND MORE INFORMATION

The SEC maintains a website that contains reports, proxy and information statements and other information regarding us and other issuers that file electronically with the SEC at www.sec.gov. Our Proxy Statements, Annual Reports on Form 10-K,Quarterly Reports on Form 10-Qand Current Reports on Form 8-K,as well as any amendments to those reports, are available free of charge through the SEC's website. Shareholders may also read and copy materials that we file with the SEC at the SEC's Public Reference Room at 100 F Street, NE, Washington, DC 20549. Shareholders may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330.

OTHER MATTERS

The Board of Directors does not know of any other matters that may come before the meeting. However, if any other matters are properly presented at the meeting, it is the intention of the persons named in the accompanying proxy to vote, or otherwise act, in accordance with their judgment on such matters.

By Order of the Board of Directors

John J. Cronin, Jr.

Corporate Secretary

WHETHER OR NOT YOU PLAN TO ATTEND THE ANNUAL MEETING, YOU ARE URGED TO COMPLETE, DATE, SIGN AND RETURN THE ENCLOSED PROXY IN THE ACCOMPANYING ENVELOPE. YOUR PROMPT RESPONSE WILL GREATLY FACILITATE ARRANGEMENTS FOR THE MEETING AND WE APPRECIATE YOUR COOPERATION.

45

EXHIBIT A

FIRST AMENDMENT TO

MASTECH DIGITAL, INC.

STOCK INCENTIVE PLAN

(AS AMENDED AND RESTATED)

RECITALS

WHEREAS, Mastech Digital, Inc., a Pennsylvania corporation (the "Company"), maintains the Mastech Digital, Inc. Stock Incentive Plan, as amended and restated (the "Plan");

WHEREAS, the Plan was originally effective as of October 1, 2008, was amended and restated effective as of May 14, 2014, was further amended on May 18, 2016, May 16, 2018, May 15, 2019, May 13, 2020 and May 10, 2023, and was amended and restated effective as of May 14, 2024;

WHEREAS, Section 19 of the Plan provides that the Board of Directors (the "Board") of the Company may amend the Plan subject to certain limitations;

WHEREAS, the Plan currently authorizes the issuance of up to 5,400,000 shares of common stock, par value $.01 per share, of the Company ("Stock") and the Board has resolved that it is in the best interest of the Company and its shareholders to amend the Plan to increase the number of shares of Stock that may be issued pursuant to the Plan by 800,000 shares; and

WHEREAS, the requisite shareholders of the Company have approved the foregoing amendment.

NOW, THEREFORE, the Plan is amended in the following respects:

AMENDMENT

1. The first sentence of Section 5 of the Plan shall be deleted in its entirety and replaced with the following:

"Shares Subject to the Plan. The number of shares of Stock which may be issued pursuant to the Plan shall be 6,200,000 shares, subject to adjustment as provided in Section 14, all of which may be issued as Incentive Stock Options."

2.  Except as set forth in this amendment, the Plan shall be unaffected hereby and shall remain in full force and effect.

* * *

[SIGNATURE PAGE FOLLOWS]

A-1

The undersigned hereby certifies that the foregoing amendment to the Plan was duly approved and adopted and has executed this amendment to the Plan as of ______, 2025.

A-2

EXHIBIT B

MASTECH DIGITAL, INC.

STOCK INCENTIVE PLAN

(AS AMENDED AND RESTATED)

Effective as of May 14, 2024, the Mastech Digital, Inc. Stock Incentive Plan is hereby amended and restated by Mastech Digital, Inc., as set forth herein. The Mastech Digital, Inc. Stock Incentive Plan was originally effective as of October 1, 2008, was amended and restated effective as of May 14, 2014, and further amended on May 18, 2016, May 16, 2018, May 15, 2019, May 13, 2020 and May 10, 2023.

Section1.General Purpose of the Plan; Definitions. The name of this plan is the Mastech Digital, Inc. Stock Incentive Plan (the "Plan"). The purpose of the Plan is to encourage and enable the officers, employees, directors and consultants of Mastech Digital, Inc. (the "Company") and its Subsidiaries upon whose judgment, initiative and efforts the Company largely depends for the successful conduct of its business to acquire a proprietary interest in the Company. It is anticipated that providing such persons with a direct stake in the Company's welfare will assure a closer identification of their interests with those of the Company, thereby stimulating their efforts on the Company's behalf and strengthening their desire to remain with the Company.

The following terms shall be defined as set forth below:

"Act" means the Securities Exchange Act of 1934, as amended.

"Award" or "Awards," except where referring to a particular category of grant under the Plan, shall include Incentive Stock Options, Non-QualifiedStock Options, Restricted Stock Awards, Stock Awards, Performance Share Awards and Stock Appreciation Rights.

"Board" means the Board of Directors of the Company.

"Change of Control" shall have the meaning assigned to that term in Section 15.

"Code" means the Internal Revenue Code of 1986, as amended, and any successor Code, and related rules, regulations and interpretations.

"Effective Date" means May 14, 2024.

"Fair Market Value" of the Stock on any given date shall be the value of the Stock as determined below. If the Stock is listed on the NYSE American or any other established stock exchange or a national market system, the Fair Market Value shall be the closing price as reported on the NYSE American or such other exchange or system for such date or, if no sales were reported for such date, for the last day preceding such date for which a sale was reported. If the Fair Market Value cannot be determined in accordance with the preceding sentence, the Board shall in good faith determine the Fair Market Value of the Stock on such date.

"Incentive Stock Option" means any Stock Option designated and qualified as an "incentive stock option" as defined in Section 422 of the Code.

"Independent Director" means a member of the Board who is not an employee or officer of the Company or any Subsidiary.

"Non-QualifiedStock Option" means any Stock Option that is not an Incentive Stock Option.

"Option" or "Stock Option" means any Option to purchase shares of Stock granted pursuant to Section 6.

B-1

"Performance Share Award" means any Award granted pursuant to Section 12.

"Restricted Stock Award" means any Award granted pursuant to Section 10.

"Stock" means the common stock, par value $.01 per share, of the Company, subject to adjustments pursuant to Section 14.

"Stock Appreciation Right" or "SAR" means any Award granted pursuant to Section 7.

"Stock Award" means any award granted pursuant to Section 11.

"Subsidiary" means any corporation or other entity (other than the Company) in any unbroken chain of corporations or other entities, beginning with the Company, if each of the corporations or entities (other than the last corporation or entity in the unbroken chain) owns stock or other interests possessing 50% or more of the economic interest or the total combined voting power of all classes of stock or other interests in one of the other corporations or entities in the chain.

Section2.Administration. The Plan shall be administered by the full Board or a committee of such Board comprised of two or more individuals who are "Non-EmployeeDirectors" within the meaning of Rule 16b-3(a)(3)promulgated under the Act (the "Plan Administrator"). Subject to the provisions of the Plan, the Plan Administrator is authorized to:

The determination of the Plan Administrator on any such matters shall be conclusive.

Section3.Delegation of Authority to Grant Awards. The Plan Administrator, in its discretion, may delegate to the Co-Chairmenof the Company or the Chief Executive Officer of the Company the Plan Administrator's authority and duties with respect to granting Awards to individuals who are not subject, by reason of their position with the Company or its Subsidiaries, to the reporting provisions of Section 16 of the Act and who are not expected to be "covered employees" of the Company or its Subsidiaries within the meaning of Section 162(m) of the Code.

Section4.Eligibility. Directors, officers, employees and consultants of the Company or its Subsidiaries who, in the opinion of the Plan Administrator, are primarily responsible for the continued growth and development and future financial success of the business shall be eligible to participate in the Plan.

Section5.Shares Subject to the Plan. The number of shares of Stock which may be issued pursuant to the Plan shall be 5,400,000 shares, subject to adjustment as provided in Section 14, all of which may be issued as Incentive Stock Options. The shares of Stock underlying any Awards which are forfeited, canceled, reacquired by the Company, satisfied without the issuance of Stock or otherwise terminated (other than by exercise) shall be added back to the number of shares of Stock available for issuance under the Plan. To the extent that an SAR is

B-2

granted in conjunction with an Option, the shares covered by such SAR and Option shall be counted only once. Stock to be issued under the Plan may be either authorized and unissued shares or shares held in treasury by the Company.

Stock Options with respect to no more than 625,000 shares of Stock may be granted to any one individual participant during any one calendar year period and Stock Appreciation Rights with respect to no more than 625,000 shares of Stock may be granted to any one individual participant during any one calendar year period. In any one calendar year during a particular Performance Period, as hereinafter defined, the maximum amount which may be earned by any individual participant under Performance Share Awards granted under the Plan for that calendar year of the Performance Period shall be limited to 625,000 shares of Stock. In the case of multi-year Performance Periods, the number of shares which are earned in any one calendar year of the Performance Period is the number of shares paid for the Performance Period divided by the number of calendar years in the period. In applying this limit, the number of shares of Stock earned by a Participant shall be measured as of the close of the applicable calendar year which ends the Performance Period, regardless of the fact that certification by the Plan Administrator and actual payment to the Participant may occur in a subsequent calendar year or years.

Section6.Stock Options. Options granted pursuant to the Plan may be either Incentive Stock Options or Non-QualifiedStock Options. Incentive Stock Options and Non-QualifiedStock Options shall be granted separately hereunder and may not be granted in tandem. The Plan Administrator shall determine whether, and to what extent, Options shall be granted under the Plan and whether such Options granted shall be Incentive Stock Options or Non-QualifiedStock Options; provided, however, that: (a) Incentive Stock Options may be granted only to employees of the Company or any Subsidiary that is a "subsidiary corporation" within the meaning of Section 424(f) of the Code, and (b) no Incentive Stock Option may be granted following the tenth anniversary of the Effective Date. The provisions of the Plan and any Stock Option agreement pursuant to which Incentive Stock Options shall be issued shall be construed in a manner consistent with Section 422 of the Code (or any successor provision) and rules and regulations promulgated thereunder.

Section7.Stock Appreciation Rights. The Plan Administrator may, from time to time, subject to the provisions of the Plan, grant SARs to eligible participants. Such SARs may be granted (i) alone, or (ii) simultaneously with the grant of an Option (either an Incentive Stock Option or Non-QualifiedStock Option) and in conjunction therewith or in the alternative thereto.

B-3

Section8.Terms of Options and SARs. Each Option or SAR granted under the Plan shall be evidenced by an agreement between the Company and the person to whom such Option or SAR is granted and shall be subject to the following terms and conditions:

For purposes of this Plan, the term "Cause" shall mean (a) with respect to an individual who is party to a written agreement with the Company which contains a definition of "cause" or "for

B-4

cause" or words of similar import for purposes of termination of employment thereunder by the Company, "cause" or "for cause" as defined in such agreement, and (b) in all other cases (i) the willful commission by an employee of a criminal or other act that causes substantial economic damage to the Company or substantial injury to the business reputation of the Company, (ii) the commission of an act of fraud in the performance of such person's duties to or on behalf of the Company, or (iii) the continuing willful failure of a person to perform the duties of such person to the Company (other than a failure to perform duties resulting from such person's incapacity due to illness) after written notice thereof (specifying the particulars thereof in reasonable detail) and a reasonable opportunity to cure such failure are given to the person by the Board or the Plan Administrator. For purposes of the Plan, no act, or failure to act, on the part of any person shall be considered "willful" unless done or omitted to be done by the person other than in good faith and without reasonable belief that the person's action or omission was in the best interest of the Company.

For purposes of this Plan, the term "Competing Business" shall mean: any person, corporation or other entity engaged in the business of (a) information technology staffing and consulting services, or (b) selling or attempting to sell any product or service which is the same as or similar to products or services sold by the Company within the last year prior to termination of such person's employment, consultant relationship or directorship, as the case may be, hereunder;

B-5

Section9.Independent Director Options. The Option exercise price for Options granted to Independent Directors under the Plan will be equal to the Fair Market Value of the Stock on the date of grant. Options granted to Independent Directors will expire ten years after grant, subject to earlier termination if the optionee ceases to serve as a director.

Section 10. Restricted Stock Awards.

B-6

Section11.Stock Awards. The Plan Administrator may, in its sole discretion, grant (or sell at a purchase price determined by the Plan Administrator) a Stock Award to any officer, employee or consultant of the Company or its Subsidiaries, pursuant to which such individual may receive shares of Stock free of any vesting restrictions under the Plan. Stock Awards may be granted or sold as described in the preceding sentence in respect of past services or other valid consideration, or in lieu of any cash compensation due to such individual; provided, however, that any purchase rights may not be granted at less than the Fair Market Value of the underlying shares on the date of grant.

Section12.Performance Share Awards. A Performance Share Award is an Award entitling the recipient to acquire shares of Stock upon the attainment of specified performance goals (the "Performance Goals"). The Plan Administrator may make Performance Share Awards independent of or in connection with the granting of any other Award under the Plan. Performance Share Awards may be granted under the Plan to any officer, employee or consultant of the Company or its Subsidiaries, including those who qualify for awards under other performance plans of the Company. The Plan Administrator, in its sole discretion, shall determine whether and to whom Performance Share Awards shall be made, the Performance Goals applicable under each such Award, the periods during which performance is to be measured (the "Performance Period"), and all other limitations and conditions applicable to the awarded Performance Shares.

B-7

Section 13. Tax Withholding.

B-8

Section 14. Adjustment of Number and Price of Shares.

Any other provision of the Plan notwithstanding:

Section15.Definition of Change of Control. For purposes of this Plan, "Change of Control" shall mean the occurrence of any of the following events:

B-9

Section 16. Consequences of a Change of Control.

B-10

Section17. Clawback. Notwithstanding any other provisions in the Plan, the Company may cancel any Award, require reimbursement of any Award by a participant, and effect any other right of recoupment of equity or other compensation provided under the Plan in accordance with the Company's Clawback Policy adopted by the Board effective as of December 1, 2023, and any other similar Company policies that may be adopted and/or modified from time to time ("Clawback Policy"). In addition, a participant may be required to repay to the Company previously paid compensation, whether provided pursuant to the Plan or an Award agreement, in accordance with the Clawback Policy. By accepting an Award, the participant is agreeing to be bound by the Clawback Policy, as in effect or as may be adopted and/or modified from time to time by the Company in its discretion (including, without limitation, to comply with applicable law or stock exchange listing requirements).

Section 18. Compliance with Section 409A of the Code.

Section19.Amendment and Discontinuance. The Board may alter, amend, suspend or discontinue the Plan, provided that no such action shall deprive any person without such person's consent of any rights

B-11

theretofore granted pursuant hereto; provided further that no amendment of the Plan shall be made without shareholder approval (a) if the effect of the amendment is (i) to make any changes in the class of employees eligible to receive Incentive Stock Options under the Plan, or (ii) to increase the number of shares with respect to which Incentive Stock Options may be granted under the Plan, or (b) if shareholder approval of the amendment is at the time required by the rules of any stock exchange on which the Stock may then be listed.

Section20.Compliance with Governmental Regulations. Notwithstanding any provision of the Plan or the terms of any agreement entered into pursuant to the Plan, the Company shall not be required to issue any shares hereunder prior to registration of the shares subject to the Plan under the Securities Act of 1933 or the Act, if such registration shall be necessary, or before compliance by the Company or any participant with any other provisions of either of those acts or of regulations or rulings of the Securities and Exchange Commission thereunder, or before compliance with other federal and state laws and regulations and rulings thereunder, including the rules of any applicable exchange or of the NYSE American. The Company shall use its best efforts to effect such registrations and to comply with such laws, regulations and rulings forthwith upon advice by its counsel that any such registration or compliance is necessary.

Section21.Compliance with Section16. With respect to persons subject to Section 16 of the Act by reason of their service with the Company or its Subsidiaries, transactions under this Plan are intended to comply with all applicable conditions of Rule 16b-3(or any successor rule) and shall be construed to the fullest extent possible in a manner consistent with this intent.

To the extent that any Award fails to so comply, it shall be deemed to be modified to the extent permitted by law and to the extent deemed advisable by the Plan Administrator in order to comply with Rule 16b-3.

Section22.Participation by Foreign Nationals. The Plan Administrator may, in order to fulfill the purposes of the Plan and without amending the Plan, determine the terms and conditions applicable to Awards to foreign nationals or United States citizens employed abroad in a manner otherwise inconsistent with the Plan if it deems such terms and conditions necessary in order to recognize differences in local law or regulations, tax policies or customs.

Section23.Effective Date; Termination of Plan. The Plan, as amended and restated effective as of May 14, 2024, shall take effect as of the Effective Date, provided that this Plan is approved by the Company's shareholders at the annual meeting of shareholders of the Company held in 2024. The Plan shall terminate on the tenth anniversary of the Effective Date, May 14, 2034, and no Awards may be granted under the Plan after such date, subject to earlier termination by the Board. Termination of the Plan shall not affect previous Awards granted under the Plan.

B-12

q IF VOTING BY MAIL, SIGN, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE. q

NOTE: Please sign name(s) exactly as printed hereon. Joint owners should each sign. When signing as attorney, executor, administrator, trustee or guardian, please give full title as such. If the signer is a corporation or partnership, please sign the full corporate or partnership name and indicate title as duly authorized officer or partner.

qIF VOTING BY MAIL, SIGN, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE.q

This Proxy is Solicited on Behalf of the Board of Directors

The undersigned hereto appoints Nirav Patel and John J. Cronin and each of them, acting singly, proxies of the signer with power to appoint a substitute and hereby authorizes them to represent and to vote all shares of Common Stock, par value $0.01 per share, of the Company held by the undersigned at the Company's Annual Meeting of Shareholders scheduled to be held on Wednesday, May 14, 2025, at 9:00 AM Central Time at Mastech Digital, Inc.'s office at 511 East John Carpenter Freeway, Suite 500, Las Colinas, TX 75062.

In their discretion, the proxy holders are authorized to vote upon such matters as may properly come before the Annual Meeting or any adjournment or postponement thereof.

The undersigned hereby acknowledges receipt of the Notice of Annual Meeting and Proxy Statement.

THIS PROXY, WHEN PROPERLY EXECUTED, WILL BE VOTED IN THE MANNER DIRECTED HEREIN. IF NO DIRECTION IS MADE, THIS PROXY WILL BE VOTED IN ACCORDANCE WITH THE BOARD OF DIRECTORS' RECOMMENDATIONS.

PLEASE SIGN, DATE AND RETURN YOUR PROXY PROMPTLY IN THE ENCLOSED ENVELOPE. NO POSTAGE IS REQUIRED IF MAILED IN THE UNITED STATES.

(IMPORTANT - TO BE SIGNED AND DATED ON REVERSE SIDE)

q IF VOTING BY MAIL, SIGN, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE. q

NOTE: Please sign name(s) exactly as printed hereon. Joint owners should each sign. When signing as attorney, executor, administrator, trustee or guardian, please give full title as such. If the signer is a corporation or partnership, please sign the full corporate or partnership name and indicate title as duly authorized officer or partner.

qIF VOTING BY MAIL, SIGN, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE.q

This Proxy is Solicited on Behalf of the Board of Directors

The undersigned hereto appoints Nirav Patel and John J. Cronin and each of them, acting singly, proxies of the signer with power to appoint a substitute and hereby authorizes them to represent and to vote all shares of Common Stock, par value $0.01 per share, of the Company held by the undersigned at the Company's Annual Meeting of Shareholders scheduled to be held on Wednesday, May 14, 2025, at 9:00 AM Central Time at Mastech Digital, Inc.'s office at 511 East John Carpenter Freeway, Suite 500, Las Colinas, TX 75062.

In their discretion, the proxy holders are authorized to vote upon such matters as may properly come before the Annual Meeting or any adjournment or postponement thereof.

The undersigned hereby acknowledges receipt of the Notice of Annual Meeting and Proxy Statement.

THIS PROXY, WHEN PROPERLY EXECUTED, WILL BE VOTED IN THE MANNER DIRECTED HEREIN. IF NO DIRECTION IS MADE, THIS PROXY WILL BE VOTED IN ACCORDANCE WITH THE BOARD OF DIRECTORS' RECOMMENDATIONS.

PLEASE SIGN, DATE AND RETURN YOUR PROXY PROMPTLY IN THE ENCLOSED ENVELOPE. NO POSTAGE IS REQUIRED IF MAILED IN THE UNITED STATES.

(IMPORTANT - TO BE SIGNED AND DATED ON REVERSE SIDE)