SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* Christakis Peter (Last) (First) (Middle) C/O AMERESCO, INC. 111 SPEEN STREET, SUITE 410 (Street) FRAMINGHAM MA 01701 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 04/19/2023	3. Issuer Name and Ticker or Trading Symbol Ameresco, Inc. [ AMRC ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) Executive Vice President	5. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Class A Common Stock	11,000	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (right to buy)	(1)	03/04/2030	Class A Common Stock	6,000	22.53	D
Stock Option (right to puchase)	(2)	08/05/2030	Class A Common Stock	8,000	29.52	D
Stock Option (right to puchase)	(3)	05/07/2031	Class A Common Stock	20,000	53	D
Stock Option (right to puchase)	(4)	03/03/2032	Class A Common Stock	15,000	63.19	D
Restricted Stock Unit(5)	(6)	(6)	Class A Common Stock	1,180	0.0	D

Explanation of Responses:

1. Of the shares subject to the option, 2,000 are vested and the remaining vest in equal installment on the fourth and fifth anniversary of the grant date 3/5/2020.

2. Of the shares subject to the option, 2,000 are vested and the remaining vest in equal installment on the third, fourth and fifth anniversary of the grant date 8/6/2020.

3. Of the shares subject to the option, 4,000 are vested and the remaining vest in equal installment on the second, third, fourth and fifth anniversary of the grant date 5/7/2021.

4. Of the shares subject to the option, 3,000 are vested and the remaining vest in equal installment on the second, third, fourth and fifth anniversary of the grant date 3/4/2022.

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

6. The RSUs, representing a contingent right to receive a total of 1,180 shares of Common Stock, were granted to the Reporting Person on March 17, 2023 and vest over two years with 25% vesting on each 6-month anniversary of the grant date.

Remarks:

	/s./ David J. Corrsin, attorney-in-fact	05/01/2023
	** 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 5 (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.
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