[Form 4] Ameresco, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Ameresco (AMRC) executive insider activity: The EVP, CFO & CAO reported option exercises and open‑market sales on October 9 and 13, 2025 under a Rule 10b5‑1 trading plan adopted on June 5, 2025. He exercised options for 23,899 shares at $12.35 and $13.37 and sold 23,899 shares in multiple trades, including weighted‑average sales ranging from $39.72 to $40.18 and from $40.92 to $41.92, plus sales at $41.92 and $44.92. Following these transactions, direct holdings were 1,189 Class A shares.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Chiplock Mark

(Last) (First) (Middle)

C/O AMERESCO, INC.

111 SPEEN STREET, SUITE 410

(Street)

FRAMINGHAM MA 01701

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Ameresco, Inc. [ AMRC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, CFO & CAO

3. Date of Earliest Transaction (Month/Day/Year)
10/09/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	10/09/2025		M		2,100	A	$13.37	3,289	D
Class A Common Stock	10/09/2025		M		5,000	A	$12.35	8,289	D
Class A Common Stock	10/09/2025		S(1)		7,100	D	$39.97(2)	1,189	D
Class A Common Stock	10/13/2025		M		5,000	A	$12.35	6,189	D
Class A Common Stock	10/13/2025		M		11,799	A	$13.37	17,988	D
Class A Common Stock	10/13/2025		S(1)		5,200	D	$41.57(3)	12,788	D
Class A Common Stock	10/13/2025		S(1)		6,599	D	$41.92	6,189	D
Class A Common Stock	10/13/2025		S(1)		5,000	D	$44.92	1,189	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (right to puchase)	$13.37	10/09/2025		M			2,100	03/04/2022(4)	08/06/2029	Class A Common Stock	2,100	$0	17,698	D
Stock Option (right to purchase)	$12.35	10/09/2025		M			5,000	(5)	10/23/2028	Class A Common Stock	5,000	$0	5,000	D
Stock Option (right to purchase)	$12.35	10/13/2025		M			5,000	(5)	10/23/2028	Class A Common Stock	5,000	$0	0	D
Stock Option (right to puchase)	$13.37	10/13/2025		M			11,799	03/04/2022(4)	08/06/2029	Class A Common Stock	11,799	$0	5,899	D

Explanation of Responses:

1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2025.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $39.72 to $40.18, inclusive.

3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $40.92 to $41.92, inclusive. The reporting person undertakes to provide to Ameresco, Inc., any security holder of Ameresco, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnotes 2 and 3 to this Form 4.

4. On August 6, 2019, the reporting person was granted an option to purchase 40,000 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, 2019 to December 31, 2021. Based on the level of achievement of these goals, as determined by Ameresco, Inc.'s Board of Directors, this option vested as to 36,000 shares.

5. Of the shares subject to the option, 20% vest on October 24, 2019, and the remainder vest in four equal installments on each of the subsequent four anniversaries of such date.

Remarks:

	/s/ David J. Corrsin, attorney-in-fact	10/14/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did AMRC's CFO report on Form 4?

He exercised stock options and sold shares on 10/09/2025 and 10/13/2025 under a Rule 10b5-1 plan.

How many shares were exercised and sold by AMRC's CFO?

He exercised 23,899 shares via options and sold 23,899 shares across multiple transactions.

What prices were involved in the AMRC insider's sales?

Sales included weighted-average ranges of $39.72–$40.18 and $40.92–$41.92, plus sales at $41.92 and $44.92.

What are the CFO's holdings after the transactions?

Direct beneficial ownership is 1,189 Class A shares after the reported trades.

What were the stock option exercise prices?

Options were exercised at $12.35 and $13.37 per share.

Was the trading prearranged?

Yes. Sales were executed pursuant to a Rule 10b5-1 trading plan adopted on June 5, 2025.

What is the insider’s role at Ameresco (AMRC)?

He is the EVP, CFO & CAO of Ameresco, Inc.