BASIS OF PRESENTATION AND CONSOLIDATION (Policies)	6 Months Ended
Jun. 30, 2026
Accounting Policies [Abstract]
Basis of Accounting and Changes in Significant Accounting Policies	Basis of Accounting and Changes in Significant Accounting Policies In this discussion, unless the context indicates otherwise, references to “we,” “us,” “our” and the “Company” refer to Amalgamated Financial Corp. and Amalgamated Bank. References to the “Bank” refer to Amalgamated Bank. The accounting and reporting policies of the Company conform to accounting principles generally accepted in the United States of America, or GAAP and predominant practices within the banking industry. The Company uses the accrual basis of accounting for financial statement purposes.
Consolidation	The accompanying unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. The annualized results of operations for the six months ended June 30, 2026 are not necessarily indicative of the results of operations that may be expected for the entire fiscal year. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). All significant inter-company transactions and balances are eliminated in consolidation. In the opinion of management, all adjustments necessary for a fair presentation of the consolidated financial position and the results of operations as of the dates and for the interim periods presented have been included. These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes appearing in the Annual Report on Form 10-K for the year ended December 31, 2025 (the “2025 Annual Report”).
Fair Value of Financial Instruments	FAIR VALUE OF FINANCIAL INSTRUMENTS Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Assumptions are developed based on prioritizing information within a fair value hierarchy that gives the highest priority to quoted prices in active markets and the lowest priority to unobservable data. A description of the disclosure hierarchy and the types of financial instruments recorded at fair value that management believes would generally qualify for each category are as follows: Level 1 - Valuations are based on quoted prices in active markets for identical assets or liabilities. Accordingly, valuation of these assets and liabilities does not entail a significant degree of judgment. Examples include most U.S. Government securities and exchange-traded equity securities. Level 2 - Valuations are based on either quoted prices in markets that are not considered to be active or significant inputs to the methodology that are observable, either directly or indirectly. Financial instruments in this level would generally include mortgage-related securities and other debt issued by GSEs, non-GSE mortgage-related securities, corporate debt, certain redeemable fund investments and certain trust preferred securities. Level 3 - Valuations are based on inputs to the methodology that are unobservable and significant to the fair value measurement. These inputs reflect management’s own judgments about the assumptions that market participants would use in pricing the assets and liabilities.

BASIS OF PRESENTATION AND CONSOLIDATION (Policies)

6 Months Ended

Jun. 30, 2026

Basis of Accounting and Changes in Significant Accounting Policies

In this discussion, unless the context indicates otherwise, references to “we,” “us,” “our” and the “Company” refer to Amalgamated Financial Corp. and Amalgamated Bank. References to the “Bank” refer to Amalgamated Bank.

The accounting and reporting policies of the Company conform to accounting principles generally accepted in the United States of America, or GAAP and predominant practices within the banking industry. The Company uses the accrual basis of accounting for financial statement purposes.

Consolidation

The accompanying unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. The annualized results of operations for the six months ended June 30, 2026 are not necessarily indicative of the results of operations that may be expected for the entire fiscal year. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). All significant inter-company transactions and balances are eliminated in consolidation. In the opinion of management, all adjustments necessary for a fair presentation of the consolidated financial position and the results of operations as of the dates and for the interim periods presented have been included. These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes appearing in the Annual Report on Form 10-K for the year ended December 31, 2025 (the “2025 Annual Report”).

Fair Value of Financial Instruments

FAIR VALUE OF FINANCIAL INSTRUMENTS

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Assumptions are developed based on prioritizing information within a fair value hierarchy that gives the highest priority to quoted prices in active markets and the lowest priority to unobservable data. A description of the disclosure hierarchy and the types of financial instruments recorded at fair value that management believes would generally qualify for each category are as follows:

Level 1 - Valuations are based on quoted prices in active markets for identical assets or liabilities. Accordingly, valuation of these assets and liabilities does not entail a significant degree of judgment. Examples include most U.S. Government securities and exchange-traded equity securities.

Level 2 - Valuations are based on either quoted prices in markets that are not considered to be active or significant inputs to the methodology that are observable, either directly or indirectly. Financial instruments in this level would generally include mortgage-related securities and other debt issued by GSEs, non-GSE mortgage-related securities, corporate debt, certain redeemable fund investments and certain trust preferred securities.

Level 3 - Valuations are based on inputs to the methodology that are unobservable and significant to the fair value measurement. These inputs reflect management’s own judgments about the assumptions that market participants would use in pricing the assets and liabilities.