risk and capital management – pillar 3 – 4Q23

4Q23

Itaú Unibanco Holding S.A.

Risk and Capital Management - Pillar 3

Fourth Quarter of 2023

Risk and Capital Management - Pillar 3

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Objective

This document presents Itaú Unibanco Holding S.A. (Itaú Unibanco) information required by the Central Bank of Brazil (BACEN) through Resolution BCB nº 54 and subsequent amendments, which addresses the disclosure of information on risks and capital management, the comparison between accounting and prudential information, the liquidity and market risk indicators, the calculation of risk-weighted assets (RWA), the calculation of the Total Capital ("Patrimônio de Referência" - PR), and the compensation of management members. 1

The referred Resolution brought several amendments in the disclosure format of the Pillar 3 information, besides changes in the scope and frequency of the information disclosed. All these amendments, implemented by the Central Bank, aim the convergence of the Brazilian financial regulation to the recommendations of the Basel Committee, seeking to harmonize the information disclosed by financial institutions at an international level, and taking into account the structural conditions of the Brazilian economy.

The disclosure policy of the Risk and Capital Management Report presents the guidelines and responsibilities of the areas involved in its preparation, as well as the description of the information that must be disclosed and the integrity endorsement and approval governance, as established by the article 56 of the Resolution nº. 4,557.

Key indicators

Itaú Unibanco's risk and capital management focuses on maintaining the institution in line with the risk strategy approved by the Board of Directors. The key indicators based on the Prudential Consolidation, on December 31, 2023, are summarized below.

1Compensation of management members data is reported annually.

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Prudential Metrics and Risk Management

Itaú Unibanco invests in robust and company-wide risk management processes to serve as a basis for its strategic decisions intended to ensure business sustainability.

The key prudential metrics related to regulatory capital and information on the bank's integrated risk management are presented below.

KM1: Key metrics at consolidated level

In order to ensure the soundness of Itaú Unibanco and the availability of capital to support business growth, Itaú Unibanco maintains capital levels above the minimum requirements, as demonstrated by the Common Equity Tier I, Tier I Capital and Total CapitaI ratios.

On December 31, 2023, the Total Capital (PR) reached R$ 206,862 million, R$ 185,141 million of Tier I and R$ 21,721 million of Tier II.

1. The countercyclical capital buffer is fixed by the Financial Stability Committee (Comef) based on discussions about the pace of credit expansion (BACEN Communication No. 40,936/23), and currently is set to zero. Should the requirement increase, the new percentage takes effect twelve months after the announcement.
2. The BACEN rules establish Capital Buffers, that corresponds to the sum of the Conservation, Contracyclical and Systemic requirements, as defined in CMN Resolution 4,958.

The Total Capital Ratio reached 17.0% at 12/31/2023, an increase of 0.7 p.p. when compared to 09/30/2023 due to the result for the period.

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In November/2023, Itaú Unibanco Holding issued R$ 700 million in Subordinated Financial Notes, which have a repurchase option as from 2028. These Subordinated Notes are authorized to compose Itaú Unibanco's Tier 1 Capital, with an estimated increase of 6 basis points in its Tier 1 Capital Ratio.

In December/2023, Itaú Unibanco Holding issued R$ 1.5 billion in Subordinated Financial Notes, maturing in January/2034. These Subordinated Notes contributed to Tier 2 Capital, with an estimated increase of 12 basis points.

Besides, Itaú Unibanco has a R$ 109,660 million capital excess in relation to its minimum required Total Capital. It corresponds to 9.0 p.p. above the minimum requirement (8%) and higher than the Capital Buffer requirement of 3.5% (R$ 42,526 million). Considering the Capital Buffers, the capital excess would be 5.5 p.p.

The fixed assets ratio shows the commitment percentage of adjusted Total Capital with the adjusted permanent assets. Itaú Unibanco falls within the maximum limit of 50% of adjusted Total Capital, established by BACEN. On December 31, 2023, fixed assets ratio reached 21.5%, showing a surplus of R$ 58,879 million.

OVA - Bank risk management approach

Scope and main characteristics of risk management

To undertake and manage risks is one of the activities of Itaú Unibanco. For this reason, the institution must have clearly established risk management objectives. In this context, the risk appetite defines the nature and the level of risks acceptable for the institution, while the risk culture guides the attitudes required to manage them. Itaú Unibanco invests in robust risk management processes, that are the basis for its strategic decisions to ensure business sustainability and maximize shareholder value creation.

These processes are in line with the guidelines of the Board of Directors and Executives who, through corporate bodies, define the institution's global objectives, which are then translated into targets and thresholds for the business units that manage risks. Control and capital management units, in turn, support Itaú Unibanco's management through the processes of analysis and monitoring of capital and risk.

The principles that provide the risk management and the risk appetite foundations, as well as guidelines regarding the actions taken by Itaú Unibanco's employees in their daily routines are as follows:

• Sustainability and customer satisfaction: the vision of Itaú Unibanco is to be a leading bank in sustainable
  performance and customer satisfaction. For this reason, the institution is concerned about creating shared values for employees, customers, shareholders and society to ensure the longevity of the business. Itaú Unibanco is concerned about doing business that is good for customers and for the institution;
• Risk culture: the institution's risk culture goes beyond policies, procedures and processes. It strengths the

individual and collective responsibility of all employees to manage and mitigate risks consciously, respecting the ethic way of doing business. The risk culture is described in the item "Risk Culture";

• Risk Pricing: Itaú Unibanco operates and assumes risks in business that it knows and understands, avoids

the ones that are unknown or that do not provide competitive advantages, and carefully assesses risk-returatios;

• Diversification: the institution has low appetite for volatility in its results. Accordingly, it operates with a

diversified base of customers, products and business, seeking risk diversification and giving priority to low-risk transactions;

• Operational excellence: Itaú Unibanco intends to provide agility, as well as a robust and stable infrastructure, in order to offer high quality services;

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• Ethics and respect for regulations: at Itaú Unibanco, ethics is non-negotiable. For this reason, the

institution promotes an institutional environment of integrity, educating its employees to cultivate ethical relationships and businesses, as well as respecting the norms, and therefore looking after the institution's reputation.

Since August, 2017, the Resolution CMN 4,557 came into force, which established the structure of risk and capital management. The resolution highlights are the implementation of a continuous and integrated risk management framework; the requirements for the definition of the Risk Appetite Statement (RAS) and the stress test program; the establishment of a Risk Committee; the indication, before BACEN, of the Chief Risk Officer (CRO); and the CRO's roles, responsibilities and independence requirements.

Risk and Capital Governance

The Board of Directors is the main body responsible for establishing the guidelines, policies and authority levels regarding risk and capital management. In turn, the Risk and Capital Management Committee (CGRC) provides support to the Board of Directors in the performance of their duties relating to risk and capital management. At the executive level, corporate bodies headed by Itaú Unibanco's Chief Executive Officer (CEO) are established to manage risks and capital. Their decisions are overseen by the CGRC.

Additionally, the Itaú Unibanco Holding has corporate bodies that perform delegated duties in the risk and capital management, under the responsibility of the CRO (Chief Risk Officer).

To support this structure, the Risk Area is structured with specialized departments. The objective is to provide independent and centralized management of the institution's risks and capital, and to ensure the accordance with the established rules and procedures.

Itaú Unibanco's risk management organizational structure complies with Brazilian and international regulations in place and is aligned with the market's best practices, including governance for identifying emerging risks, which are those with medium and long-term impact potentially material about the business.

Responsibilities for risk management at Itaú Unibanco are structured according to the concept of three lines of defense, namely:

• in the first line of defense, the business and corporate support areas manage risks they give rise to, by identifying, assessing, controlling and reporting such risks;
• in the second line of defense, an independent unit provides central control, so as to ensure that Itaú

Unibanco's risk is managed according to the risk appetite and established policies and procedures. This centralized control provides the Board and executives with a global overview of Itaú Unibanco's exposure, to ensure correct and timely corporate decisions;

• in the third line of defense, internal audit provides an independent assessment of the institution's activities,

so that senior management can see that controls are adequate, risk management is effective and institutional standards and regulatory requirements are being complied with.

Itaú Unibanco uses robust automated systems for full compliance with capital regulations, as well as for measuring risks in accordance with the regulatory determinations and models in place. It also monitors adherence to the qualitative and quantitative regulators' minimum capital and risk management requirements.

Risk Culture

Aiming at strengthening its values and aligning the behavior of its employees with risk management guidelines, the institution adopts several initiatives to disseminate and strengthen a culture that values and encourages conscious risk taking, discussions and actions on the institution's risks, and each and everyone's responsibility for risk management.

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Besides the risk management policies, procedures and processes, the institution has as a central element of its Corporate Culture the message "Ethics is non-negotiable". Behavioral guidelines, also described in this culture, reinforce and strengthen the Conglomerate's risk management behavior by emphasizing a behavior that helps people of all company levels to undertake and manage risks in a conscious way. By disseminating these principles, the institution fosters the understanding and the open discussion about risks, so that they are kept within the risk appetite levels established and each employee individually, regardless of their position, area or duties, may also assume responsibility for managing the risks of the business.

Itaú Unibanco also makes some channels available for communication of operating failures, internal or external fraud, conflicts at the workplace, or cases that may result in inconveniences and/or losses for the institution or its customers. All employees or third parties are responsible for informing any problems immediately, as soon as they become aware of the situation.

Risk Appetite

Itaú Unibanco has a risk appetite policy, which was established and approved by the Board of Directors and guides the institution's business strategy. The bank's risk appetite is grounded on the following declaration of the Board of Directors:

"We are a universal bank, operating predominantly in Latin America. Supported by our risk culture, we operate based on rigorous ethical and regulatory compliance standards, seeking high and growing results, with low volatility, by means of the long-lasting relationship with clients, correctly pricing risks, well-distributedfund-raising and proper use of capital."

Based on this declaration, the bank established six dimensions, each of which comprising a set of metrics associated with the key risks involved, combining complementary measurements and seeking a comprehensive view of its exposure:

• Capitalization: establishes that Itaú Unibanco should have sufficient capital to protect itself against a

serious recession or stress events without the need to adjust its capital structure under adverse circumstances. It is monitored by following up the bank's capital ratios, in usual or stress situations, and the institution's debt issue ratings.

• Liquidity: establishes that the institution's liquidity should be able to support long stress periods. It is monitored by following up on liquidity ratios.
• Composition of results: establishes that business will mainly focus on Latin America, where Itaú Unibanco
  will have a diversified range of customers and products, with low appetite for results volatility and high risk. This dimension includes business and profitability, as well as market risk and IRRBB, underwriting and credit risk, including social, environmental and climate dimensions. The metrics monitored by the bank seek to ensure, by means of exposure concentration limits such as, for example, industry sectors, quality of counterparties, countries and geographic regions and risk factors, a suitable composition of the bank's portfolios, aiming at low volatility of results and business sustainability.
• Operational risk: focuses on controlling operational risk events that may adversely impact the bank's

business strategy and operations. This control is carried out by monitoring key operational risk events and incurred losses.

• Reputation: deals with risks that may impact brand value and the institution's reputation before its
  customers, employees, regulators, investors and the general public. In this dimension, risks are monitored by observation of the institution's conduct.
• Customer: addresses risks that may compromise customer satisfaction and experience, and is monitored by tracking customer satisfaction, direct impacts on customers, and suitability indicators.

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The Board of Directors is responsible for approving risk appetite guidelines and limits, performing its activities with the support of the Risk and Capital Management Committee (CGRC) and the Chief Risk Officer (CRO).

Metrics are regularly monitored and must comply with the limits defined. The monitoring is reported to the risk commissions and to the Board of Directors, guiding the use of preventive measures to ensure that exposures are within the limits provided and in line with the bank's strategy.

Stress Testing

The stress test is a process of simulating extreme economic and market conditions on Itaú Unibanco's results, liquidity and capital. The institution has been carrying out this test in order to assess its solvency in plausible scenarios of crisis, as well as to identify areas that are more susceptible to the impact of stress that may be the subject of risk mitigation.

For the purposes of the test, the economic research area estimates macroeconomic variables for each stress scenario. The elaboration of stress scenarios considers the qualitative analysis of the Brazilian and the global conjuncture, historical and hypothetical elements, short- and long- term risks, among other aspects, as defined in CMN Resolution 4,557.

In this process, the main potential risks to the economy are assessed based on the judgment of the bank's team of economists, endorsed by the Chief Economist of Itaú Unibanco and approved by the Board of Directors. Projections for the macroeconomic variables (such as GDP, the basic interest rate and inflation) and for variables in the credit market (such as raisings, lending, rates of default, margins and charges) used are based on exogenous shocks or through use of models validated by an independent area.

Then, the stress scenarios adopted are used to influence the budgeted result and balance sheet. In addition to the scenario analysis methodology, sensitivity analysis and the Reverse Stress Test are also used.

Itaú Unibanco uses the simulations to manage its portfolio risks, considering Brazil (segregated into wholesale and retail) and External Units, from which the risk-weighted assets and the capital and liquidity ratios are derived.

The stress test is also an integral part of the ICAAP (Internal Capital Adequacy Process), the main purpose of which is to assess whether, even in severely adverse situations, the institution would have adequate levels of capital and liquidity, without any impact on the development of its activities.

This information enables potential offenders to the business to be identified and provides support for the strategic decisions of the Board of Directors, the budgeting and risk management process, as well as serving as an input for the institution's risk appetite metrics.

Recovery Plan

In response to the latest international crises, the Central Bank issued the Resolution No. 4,502, which requires the development of a Recovery Plan for the financial institutions that are classified in the Segment 1, with a total exposure of more than 10% of Gross Domestic Product (GDP). This plan aims to reestablish adequate levels of capital and liquidity, above the regulatory requirements, through appropriate strategies in the event of severe stress shocks of a systemic or idiosyncratic nature. Accordingly, each institution would be able to preserve its financial feasibility and, at the same time, mitigate the impact on the National Financial System.

Itaú Unibanco has a Recovery Plan that contemplates the entire Conglomerate, including foreign subsidiaries, and contains the description of the following items:

1. Critical functions rendered by Itaú Unibanco to the market, activities that, if abruptly interrupted, could impact the National Financial System (SFN) and the functioning of the real economy;

1. Institution's essential services: activities, operations or services which discontinuity could compromise the bank's viability;

1. Monthly monitoring program, establishing critical levels for a set of indicators, with a view to risk monitoring and eventual trigger for the execution of the Recovery Plan;
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