Amalgamated Financial Corp.

Securities Trading Plans of Directors and Executive Officers

On June 11, 2026, Edgar Romney Jr., Executive Vice President, Chief Strategy and Administrative Officer, adopted a Rule 10b5-1 trading arrangement that is intended to satisfy the affirmative defense of Rule 10b5-1(c) for the sale of up to 5,992 shares of the Company’s common stock, with such transactions to occur during sale periods beginning on or after September 10, 2026, and ending on the earlier of August 31, 2027, or the date on which all shares authorized for sale have been sold in conformance with the terms of the arrangement.

On June 11, 2026, Jason M. Darby, Senior Executive Vice President and Chief Financial Officer, adopted a Rule 10b5-1 trading arrangement that is intended to satisfy the affirmative defense of Rule 10b5-1(c) for the sale of up to 19,995 shares of the Company’s common stock , with such transactions to occur during sale periods beginning on or after September 10, 2026, and ending on the earlier of March 31, 2027, or the date on which all shares authorized for sale have been sold in conformance with the terms of the arrangement.

On June 9, 2026, Sean Searby, Executive Vice President, Chief Information and Operations Officer, adopted a Rule 10b5-1 trading arrangement that is intended to satisfy the affirmative defense of Rule 10b5-1(c) for the sale of up to 16,005 shares of the Company’s common stock, net of shares to be withheld for taxes upon the vesting of underlying stock awards, with such transactions to occur during sale periods beginning on or after September 15, 2026 and ending on the earlier of July 30, 2027, or the date on which all shares authorized for sale have been sold in conformance with the terms of the arrangement. This trading arrangement was subsequently modified on June 11, 2026 to correct a typographical error in the date of the Tranche 6 sale period. The amendment updates Tranche 6 of the arrangement, covering 1,026 shares, to provide that sales of such shares shall occur during the sale period beginning on April 15, 2027, and ending on the earlier of July 30, 2027, or the date on which all 1,026 shares subject to Tranche 6 have been sold.

On June 8, 2026, Sam D. Brown, Senior Executive Vice President, Chief Banking Officer, adopted a Rule 10b5-1 trading arrangement that is intended to satisfy the affirmative defense of Rule 10b5-1(c) for the sale of up to 51,943 shares of the Company’s common stock, with such transactions to occur during sale periods beginning on or after September 7, 2026, and ending on the earlier of August 31, 2027, or the date on which all shares authorized for sale have been sold in conformance with the terms of the arrangement.

On June 8, 2026, Mandy Tenner, Executive Vice President, Chief Legal Officer, adopted a Rule 10b5-1 trading arrangement that is intended to satisfy the affirmative defense of Rule 10b5-1(c) for the sale of up to 14,976 shares of the Company’s common stock, with such transactions to occur during sale periods beginning on or after September 7, 2026, and ending on the earlier of August 31, 2027, or the date on which all shares authorized for sale have been sold in conformance with the terms of the arrangement.