To the Shareholders and Management of

We have reviewed the accompanying interim condensed consolidated financial statements of StoneCo Ltd. (the “Company”) as at March 31, 2026 which comprise the interim consolidated statement of financial position as at March 31, 2026 and the related interim consolidated statements of profit or loss, other comprehensive income (loss), changes in equity and cash flows for the three months period then ended and explanatory notes.

Management is responsible for the preparation and presentation of this interim condensed consolidated financial information in accordance with IAS 34 – Interim Financial Reporting, issued by the International Accounting Standards Board (IASB). Our responsibility is to express a conclusion on this interim condensed consolidated financial information based on our review.

We conducted our review in accordance with International Standard on Review Engagements 2410 - Review of Interim Financial Information Performed by the Independent Auditor of the Entity.

A review of interim financial information consists of making inquiries, primarily of persons responsible for financial and accounting matters, and applying analytical and other review procedures. A review is substantially less in scope than an audit conducted in accordance with International Standards on Auditing and consequently does not enable us to obtain assurance that we would become aware of all significant matters that might be identified in an audit. Accordingly, we do not express an audit opinion.

Based on our review, nothing has come to our attention that causes us to believe that the accompanying interim condensed consolidated financial statements are not prepared, in all material respects, in accordance with IAS 34 – Interim Financial Reporting, issued by the International Accounting Standards Board (IASB).

We draw attention to Note 20 to the interim condensed consolidated financial statements, which describes that, in the second quarter of 2025 the Company’s investments in certain subsidiaries were classified as non-current assets held for sale, as discontinued operations. As a result, the corresponding interim consolidated statement of profit or loss, for the three months period ended March 31, 2025, presented for comparison purposes, has been adjusted and is being restated as required by IFRS 5 – Non-current Assets Held for Sale and Discontinued Operations. Our conclusion is not modified in respect of this matter.

São Paulo, May 13, 2026.

ERNST & YOUNG

Auditores Independentes S/S Ltda.

Unaudited interim consolidated statement of financial position as of March 31, 2026 and December 31, 2025

Unaudited interim consolidated statement of profit or loss for the three months ended March 31, 2026 and 2025

Unaudited interim consolidated statement of other comprehensive income (loss) for the three months ended March 31, 2026 and 2025

									Three months ended March 31,
			Notes						2026						2025
Net income for the period									1,711,339						516,747
Other comprehensive income ("OCI")
Other comprehensive income (loss) that may be reclassified to profit or loss in subsequent periods:
Changes in the fair value of accounts receivable from card issuers			19.1.1						68,423						(148,636)
Tax on changes in the fair value of accounts receivable from card issuers			8.2						(15,664)						50,536
Exchange differences on translation of foreign operations									7,940						(6,954)
Changes in the fair value of cash flow hedge									(15,675)						14,827
Tax on changes in the fair value of cash flow hedge			8.2						4,963						(5,990)
Net monetary position in hyperinflationary economies									—						6,990
Other comprehensive income (loss) that were reclassified to profit or loss in subsequent periods:
Reclassification to profit or loss of accumulated exchange differences on disposal of foreign operation									14,959						—
Other comprehensive income (loss) for the period									64,946						(89,227)
Total comprehensive income for the period									1,776,285						427,520
Total comprehensive income attributable to:
Controlling shareholders									1,772,361						425,373
Non-controlling interests									3,924						2,147
Total comprehensive income for the period									1,776,285						427,520

Unaudited interim consolidated statement of changes in equity for the three months ended March 31, 2026 and 2025

Unaudited interim consolidated statement of cash flows for the three months ended March 31, 2026 and 2025

Notes to unaudited interim condensed consolidated financial statements as of March 31, 2026

StoneCo Ltd. (the “Company”), is a Cayman Islands exempted company with limited liability, incorporated on March 11, 2014. The registered office of the Company is located at 4th Floor, Harbour Place 103 South Church Street, P.O. Box 10240 Grand Cayman E9 KY1-1002.

André Street, one of the co-founders of the Company, controls directly and indirectly 2.33% of Class A common shares and 100.00% of Class B common shares as of March 31, 2026. Accordingly, André Street directly and indirectly controls 7.97% of outstanding common shares and 39.45% of the combined voting power of common shares.

The Company’s shares are publicly traded on Nasdaq under the ticker symbol STNE.

The Company and its subsidiaries (collectively, the “Group”), is a leading provider of financial technology solutions that empower merchants to conduct commerce seamlessly across multiple channels and help them grow their businesses with payments, banking and credit.

The interim condensed consolidated financial statements for the three months ended March 31, 2026 have been prepared in accordance with IAS 34 – Interim Financial Reporting, issued by the International Accounting Standards Board (“IASB”), on the basis that it will continue to operate as a going concern.

The interim condensed consolidated financial statements are presented in Brazilian Reais (“R$”), and all values are rounded to the nearest thousand (R$ 000), except when otherwise indicated.

The interim condensed consolidated financial statements do not include all the information and disclosures required in the annual financial statements and should be read in conjunction with the Group’s annual consolidated financial statements as of December 31, 2025.

The accounting policies adopted in this interim reporting period are consistent with those of the previous financial year.

The interim condensed consolidated financial statements of the Group for the three months ended March 31, 2026 and 2025 were approved by the Audit Committee on May 13, 2026.

The preparation of the Group’s interim financial statements requires management to make judgments and estimates and to adopt assumptions that affect the amounts presented of revenues, expenses, assets and liabilities at the financial statement date. Actual results may differ from these estimates.

Judgments, estimates and assumptions are frequently revised, and any effects are recognized in the revision period and in any future affected periods. The objective of these revisions is mitigating the risk of material differences between the estimated and actual results in the future.

In preparing these interim condensed consolidated financial statements, the significant judgments and estimates made by management in applying the Group’s accounting policies and the key sources of estimation uncertainty were the same as those from the consolidated financial statements for the year ended December 31, 2025.

•Annual Improvements to IFRS accounting Standards – Volume 11: In July 2024, IASB issued nine narrow scope amendments as part of its periodic maintenance of IFRS accounting standards. The amendments include clarifications, simplifications, corrections or changes to improve consistency in IFRS 1 First-time Adoption of International Financial Reporting Standards, IFRS 7 Financial instruments: Disclosure and its accompanying Guidance on implementing IFRS 7, IFRS 9 Financial Instruments, IFRS 10 Consolidated Financial Statements and IAS 7 Statements of Cash Flows.

•IFRS 9 - Financial instruments and IFRS 7 - Financial instruments: Disclosures: On 30 May 2024, IASB issued Amendments to the Classification and Measurement of Financial Instruments which amended IFRS 9 Financial Instruments and IFRS 7 Financial Instruments: Disclosures (the “Amendments”). The Amendments provide additional guidance and clarity on the following specific matters: date of recognition and write-off of financial instruments and significant characteristics in the assessment of "sole payments of principal and interest" (SPPI Test) for financial assets, and guidance on the assessment of contractual cash flows for financial assets with environmental, social and corporate governance (ESG) and similar features. In addition, the amendments add disclosures relating to equity instruments designated at fair value through other comprehensive income and financial instruments linked to contingent events.

The application of these accounting standards as of January 1, 2026, had no significant impact on the Group’s consolidated financial statements.

In accordance with IFRS 10 - Consolidated Financial Statements, subsidiaries are all entities in which the Company holds control.

The following table shows the main consolidated entities, which correspond to the Group’s most relevant operating vehicles.

During the first quarter of 2026, wholly-owned subsidiaries of the Group were incorporated in Switzerland (Stone Capital AG), in Luxembourg (Stone ALP Holding SARL and Stone VETC SARL), and in the United States (Stone Apex Capital LLC). The functional currency of these entities is the Brazilian Real (BRL).

There were no changes in the interest held by the Group in its subsidiaries.

The Group holds call options to acquire additional interests in some of its subsidiaries (Note 5.7) and issued put options to non-controlling investors (Note 5.10.1(g)).

The following table shows all entities in which the Group has significant influence.

(a)Dilution of the Company's equity interest resulting from a capital increase.

The Group holds call options to acquire additional interests in some of its associates (Note 5.7).

(a)As of December 31, 2025, the amount of R$ 4,821,703 relates to continuing operations, Cash and cash equivalents from discontinued operations amount to R$ 230,643, resulting in a total of R$ 5,052,346, as presented in the Consolidated statement of cash flows.

(a)Comprised of common shares of unlisted entities that are not traded in an active market. As of March 31, 2026 and December 31, 2025, all assets are recognized at FVPL. The fair value of unlisted equity instruments was determined based on negotiations of the securities. There was no gain or loss on the fair value of equity securities at FVPL for the three months ended March 31, 2026 (loss of R$ 11,790 for the three months ended March 31, 2025, which was recognized in the statement of profit or loss).

(b)Comprised of foreign investment fund shares.

Short and Long-term investments are denominated in Brazilian Reais and U.S. dollars.

Accounts receivable are amounts due from card issuers and acquirers for the transactions of clients with card holders, performed in the ordinary course of business.

(a)Accounts receivable from card issuers, net of interchange fees, as a result of processing transactions with clients.

(b)Accounts receivable from other acquirers related to PSP (Payment Service Provider) transactions.

Part of the Group’s cash requirement is to make prepayments to acquiring customers. The Group finances those requirements through different sources of funding including the true sale of receivables to third parties. When such sales of receivables are carried out to entities in which the Group has subordinated shares or quotas, the receivables sold remain in the statement of financial position, as these entities are consolidated in the financial statements. As of March 31, 2026 a total of R$ 222,019 (December 31, 2025 - R$ 441,323) were consolidated through Fundo de Investimento em Direitos Creditórios ACR Fast (“FIDC ACR FAST”) and R$ 2,606,928 (December 31, 2025 R$ 2,670,380) through Fundo de Investimento em Direitos Creditórios ACR I (“FIDC ACR I”), of which the Group has subordinated shares. When the sale of receivables is carried out to non-controlled entities and for transactions where continuous involvement is not present, the amounts transferred are derecognized from the accounts receivable from card issuers. As of March 31, 2026, the sale of receivables that were derecognized from accounts receivables from card issuers in the statement of financial position represents a relevant funding source used for the prepayment transaction.

Accounts receivable held by FIDCs guarantee the obligations to FIDC quota holders.

Accounts payable to clients represent amounts due to accredited clients related to credit and debit card transactions, net of interchange fees retained by card issuers and assessment fees paid to payment scheme networks as well as the Group’s net merchant discount rate fees which are collected by the Group as an agent.

Trade accounts receivables are amounts due from clients mainly related to subscription services and equipment rental.

Portfolio balances by product:

(a)The Group holds a portfolio of fixed-rate credit transactions exposed to market risk from fluctuations in the Brazilian interest rates. To mitigate this risk, fixed-for-floating interest rate swaps were entered into to protect the fair value of the portfolio against rates variations. These swaps are designated as fair value hedge accounting and, as a result, the interest rate risk of the credit transactions is marked to market against profit or loss. The portfolio is dynamically managed, with swap positions adjusted to reflect changes, including prepayment risk.

Total outstanding of the contract whenever the clients default on an installment:

The Group calculates an expected credit loss allowance for its loans based on statistical models that consider both internal and external historical data, negative credit information and guarantees, including information that addresses the behavior of each debtor. The Group divides its credit portfolio in three stages:

(i)Stage 1: corresponds to loans that do not present significant increase in credit risk since origination, and expected credit loss (“ECL") are determined considering probability of default events within 12 months window;

(ii)Stage 2: corresponds to loans that presented significant increase in credit risk subsequent to origination and ECL are estimated considering probability of default events within the life of the financial instrument;

The Group determines Stage 2 based on the following criteria:

(a)absolute criteria: financial asset overdue more than 30 days, or;

(b)relative criteria: in addition to the absolute criteria, the Group analyzes the evolution of the risk of each financial instrument on a monthly basis, comparing the current behavior score attributed to each client with that attributed at the time of recognition of the financial asset. Behavioral scoring considers credit behavior variables, such as default on other products and market data about the customer. When the credit risk increases significantly since origination, the Stage 1 operation is moved to Stage 2.

For Stage 2, a cure criterion is applied when the financial asset no longer meets the criteria for a significant increase in credit risk, as mentioned above, and the loan is moved to Stage 1.

(iii)Stage 3: corresponds to impaired loans.

The Group determines Stage 3 based on the following criteria:

(a)absolute criteria: financial asset overdue more than 90 days, or;

(b)relative criteria: indicators that the financial asset will not be paid in full without enforcing either a collateral or financial guarantee.

The indication that an obligation will not be paid in full includes the tolerance of financial instruments that imply the granting of advantages to the counterparty following the deterioration of the counterparty's credit quality.

The Group also assumes a cure criterion for Stage 3, with respect to the counterparty's repayment capacity, such as the percentage of total debt paid or the time limit to liquidate current debt obligations.

Management regularly seeks forward-looking perspectives for future market developments including macroeconomic scenarios as well as its portfolio risk profile. Management may adjust the ECL resulting from the models above in order to better reflect these forward-looking perspectives.

Reconciliation of gross portfolio of loans operations, segregated by stages: