David J. Corrsin - 27 Feb 2026 Form 4 Insider Report for Ameresco, Inc. (AMRC)

Role: EVP and General Counsel, Director
Signature: David J. Corrsin
Issuer symbol: AMRC
Transactions as of: 27 Feb 2026
Net transactions value: +$92,800
Form type: 4
Filing time: 27 Feb 2026, 19:42:15 UTC
Previous filing: 16 Sep 2025
Next filing: 10 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Corrsin David J	EVP and General Counsel, Director	C/O AMERESCO, INC., 111 SPEEN STREET, SUITE 410, FRAMINGHAM	David J. Corrsin	27 Feb 2026	0001496596

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AMRC	Class A Common Stock	Options Exercise	$92,800	+20,000	+4246%	$4.64	20,471	27 Feb 2026	Direct
holding	AMRC	Class A Common Stock						379	27 Feb 2026	By Spouse	F1

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	Stock Option (right to purchase)	Options Exercise	$0	-20,000	-100%	$0.000000	0	27 Feb 2026	Class A Common Stock	20,000	$4.64	Direct	F2

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

Explanation of Responses:

Id	Content
F1	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.
F2	On May 10, 2016, the reporting person was granted an option to purchase 50,000 shares of Class A common stock. The option vested based on continued service to Ameresco, Inc. and performance relative to goals established for the three-year performance period from January 1, 2016 to December 31, 2018. Based on the level of achievement of these goals, as determined by Ameresco, Inc.'s Compensation Committee, this option vested as to 44,401 shares.

Content

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.

On May 10, 2016, the reporting person was granted an option to purchase 50,000 shares of Class A common stock. The option vested based on continued service to Ameresco, Inc. and performance relative to goals established for the three-year performance period from January 1, 2016 to December 31, 2018. Based on the level of achievement of these goals, as determined by Ameresco, Inc.'s Compensation Committee, this option vested as to 44,401 shares.