Amalgamated Financial Corp

Securities Trading Plans of Directors and Executive Officers

On October 29,2024, Maryann Bruce, director, 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 4,403 shares of the Company’s common stock, with such transactions to occur during sale periods beginning on or after January 28,2025 and ending on the earlier of July 27,2025 or the date on which all shares authorized for sale have been sold in conformance with the terms of the arrangement.

On November 11,2024, 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 25,217 shares of the Company’s common stock, net of shares to be withheld for the exercise price and for taxes upon the exercise or vesting of underlying stock awards, with such transactions to occur during sale periods beginning on or after February 15,2025 and ending on the earlier of November 12,2025 or the date on which all shares authorized for sale have been sold in conformance with the terms of the arrangement.

On November 14,2024, Edgar Romney, 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 upto 26,300 shares of the Company’s common stock, net of shares to be withheld for the exercise price and for taxes upon the exercise of underlying stock awards, with such transactions to occur during sale periods beginning on or after February 13,2025 and ending on the earlier of

February 12,2026 or the date on which all shares authorized for sale have been sold in conformance with the terms of the arrangement.

On December 4,2024, Tyrone Graham, Executive Vice President, Chief Human Resources 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 25,056 shares of the Company’s common stock, net of shares to be withheld for the exercise price and for taxes upon the exercise or vesting of underlying stock awards, with such transactions to occur during sale periods beginning on or after March 5,2025 and ending on the earlier of March 4,2026 or the date on which all shares authorized for sale have been sold in conformance with the terms of the arrangement.

On December 31,2024, Jason Darby, Senior Executive Vice President, 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 4,000 shares of the Company’s common stock, with such transactions to occur during sale periods beginning on or after March 31,2025 and ending on the earlier of January 31,2026 or the date on which all shares authorized for sale have been sold in conformance with the terms of the arrangement.