X0609 4 2026-04-23 0 0001488139 Ameresco, Inc. AMRC 0001496494 Sutton Joseph W. false C/O AMERESCO, INC. 111 SPEEN STREET, SUITE 410 FRAMINGHAM MA 01701 1 0 0 0 0 Class A Common Stock 2026-04-23 4 M 0 10000 4.74 A 60111 D Stock Option (right to purchase) 4.74 2026-04-23 4 M 0 10000 0 D 2026-05-25 Class A Common Stock 10000 0 D Of the shares subject to the option, 20% vest on May 26, 2017, and the remainder vest in four equal installments on each of the subsequent four anniversaries of such date. /s/ David J. Corrsin, Attornney-in-fact 2026-04-27