Casella Waste Systems Director Emily Nagle Green Gifts 600 Shares to Charity

Emily Nagle Green, a director of Casella Waste Systems Inc., gifted 600 shares of Class A Common Stock valued at $0 per share to the Nagle-Green Charitable Fund at Fidelity on June 8, 2026. The transaction was reported as a gift (Code G) and resulted in a disposal of shares. Following this charitable gift, Green retains ownership of 16,902 shares of Casella Waste Systems. The filing was signed on June 10, 2026, by Shelley E. Sayward as Attorney in Fact for Emily K. Nagle. This Form 4 filing represents a routine disclosure of a director's charitable donation of company stock, which is a common practice among corporate executives and directors for tax and philanthropic purposes.