George P. Sakellaris - 10 Sep 2025 Form 4 Insider Report for Ameresco, Inc. (AMRC)

Role: President and CEO, Director, 10%+ Owner
Signature: /s/ David J. Corrsin, attorney-in-fact
Issuer symbol: AMRC
Transactions as of: 10 Sep 2025
Net transactions value: $0
Form type: 4
Filing time: 12 Sep 2025, 17:44:06 UTC
Previous filing: 19 Mar 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Sakellaris George P	President and CEO, Director, 10%+ Owner	C/O AMERESCO, INC., 111 SPEEN STREET, SUITE 410, FRAMINGHAM	/s/ David J. Corrsin, attorney-in-fact	12 Sep 2025	0001496665

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AMRC	Class A Common Stock	Options Exercise	$0	+3,750	+0.38%	$0.000000	984,847	10 Sep 2025	Direct
holding	AMRC	Class A Common Stock						1,100,000	10 Sep 2025	By trust	F1
holding	AMRC	Class A Common Stock						200,000	10 Sep 2025	By spouse	F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	AMRC	Restricted Stock Unit	Options Exercise	$0	-3,750	-25%	$0.000000	11,250	10 Sep 2025	Class A Common Stock	3,750		Direct	F3, F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Shares held by a trust for the benefit of the reporting person's children, who share the reporting person's household. The reporting person may be deemed the beneficial owner of the shares held by the trust. The reporting person disclaims beneficial ownership of the shares held by the trust, and this report should not be deemed an admission that the reporting person is the beneficial owner of the trust's shares for purposes of Section 16 or for any other purpose.
F2	The reporting person disclaims beneficial ownership of the shares held by his spouse, and this report should not be deemed an admission that the reporting person is the beneficial owner of his spouse's shares for purposes of Section 16 or for any other purpose.
F3	Each RSU represents a contingent right to receive one share of Ameresco, Inc. Class A Common Stock ("Common Stock").
F4	Each RSUs represents a contingent right to receive one share of Common Stock and vest over two years with 25% vesting on each 6-month anniversary of the applicable grant date.