Ameresco (NYSE: AMRC) CFO logs tax sell-to-cover, options and RSU grants

Rhea-AI Filing Summary

Ameresco, Inc. EVP, CFO & CAO Mark Chiplock reported several equity transactions. He sold 273 shares of Class A Common Stock at $25.31 per share under an automatic sell-to-cover instruction used solely to pay withholding taxes on vesting RSUs, leaving 1,666 shares held directly.

He received a stock option grant for 20,000 shares of Class A Common Stock at an exercise price of $26.36 per share, with 20% vesting on each anniversary of the March 10, 2026 grant date over five years. He was also granted 3,500 restricted stock units, bringing his RSU balance to 5,000, which vest over two years with 25% vesting every six months. Separately, 750 RSUs were converted into 750 shares of Class A Common Stock.

Insider Trade Summary 10b5-1

Net Seller: 273 shares ($6,910)

Net Sell 5 txns

Insider Chiplock Mark

Role EVP, CFO & CAO

Sold 273 shs ($7K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	273	$25.31	$7K
Grant/Award	Stock Option (right to purchase)	20,000	$0.00	--
Grant/Award	Restricted Stock Unit	3,500	$0.00	--
Exercise	Restricted Stock Unit	750	$0.00	--
Exercise	Class A Common Stock	750	$0.00	--

Holdings After Transaction: Class A Common Stock — 1,666 shares (Direct); Stock Option (right to purchase) — 20,000 shares (Direct); Restricted Stock Unit — 5,750 shares (Direct)

Footnotes (1)

1. The shares were sold pursuant to an automatic sell-to-cover instruction signed March 7, 2023 solely to cover applicable withholding taxes in connection with the vesting of RSUs. Of the shares subject to the option, 20% vest on each of anniversary of the grant date of March 10, 2026 over a period of five years. Each RSU represents a contingent right to receive one share of Ameresco, Inc. Class A Common Stock ("Common Stock"). Each RSU vests over two years with 25% vesting on each 6-month anniversary of the applicable grant date.

Form 4 Insider Transactions: What Each Field Means →

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
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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).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

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)
03/10/2026

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	03/10/2026		M		750	A	$0	1,939	D
Class A Common Stock	03/12/2026		S		273	D	$25.31(1)	1,666	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 purchase)	$26.36	03/10/2026		A		20,000		(2)	(2)	Class A Common Stock	20,000	$0	20,000	D
Restricted Stock Unit	(3)	03/10/2026		A		3,500		(4)	(4)	Class A Common Stock	3,500	$0	5,750	D
Restricted Stock Unit	(3)	03/10/2026		M			750	(4)	(4)	Class A Common Stock	750	$0	5,000	D

Explanation of Responses:

1. The shares were sold pursuant to an automatic sell-to-cover instruction signed March 7, 2023 solely to cover applicable withholding taxes in connection with the vesting of RSUs.

2. Of the shares subject to the option, 20% vest on each of anniversary of the grant date of March 10, 2026 over a period of five years.

3. Each RSU represents a contingent right to receive one share of Ameresco, Inc. Class A Common Stock ("Common Stock").

4. Each RSU vests over two years with 25% vesting on each 6-month anniversary of the applicable grant date.

Remarks:

	/s/ David J. Corrsin, attorney-in-fact	03/12/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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