Ameresco (AMRC) director converts 10,435 RSUs, lifting direct Class A stake to 23,824 shares

Rhea-AI Filing Summary

Ameresco, Inc. director Charles R. Patton increased his holdings through equity compensation. On the reported date, he acquired 10,435 shares of Class A Common Stock at a price of $0.00 per share by exercising vested Restricted Stock Units, rather than buying shares on the open market.

Following this transaction, he directly holds 23,824 shares of Class A Common Stock. The RSUs are described as an annual grant under Ameresco’s non-employee director compensation plan and each unit represents a contingent right to receive one share, vesting in full on the first anniversary of the grant date assuming continued service.

Insider Trade Summary

10,435 shares exercised/converted

Mixed 2 txns

Insider Patton Charles R.

Role null

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Unit	10,435	$0.00	--
Exercise	Class A Common Stock	10,435	$0.00	--

Holdings After Transaction: Restricted Stock Unit — 0 shares (Direct, null); Class A Common Stock — 23,824 shares (Direct, null)

Footnotes (1)

1. Annual grant pursuant to Ameresco, Inc.'s non-employee director compensation plan. Each RSU represents a contingent right to receive one share of Ameresco, Inc. Class A Common Stock ("Common Stock"). The RSUs vest in full on the first anniversary of the grant date, assuming continues service through the vesting date.

Key Figures

RSUs exercised: 10,435 shares Price per share on exercise: $0.00 per share Shares held after transaction: 23,824 shares +1 more

4 metrics

RSUs exercised 10,435 shares Restricted Stock Units converted into Class A Common Stock

Price per share on exercise $0.00 per share Exercise of Restricted Stock Units into common shares

Shares held after transaction 23,824 shares Direct holdings of Class A Common Stock following Form 4 transaction

RSU-to-share ratio 1 RSU : 1 share Each RSU represents one share of Class A Common Stock

Key Terms

Restricted Stock Unit, non-employee director compensation plan, Class A Common Stock, contingent right, +1 more

5 terms

Restricted Stock Unit financial

"The security title includes "Restricted Stock Unit" for the derivative transaction."

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

non-employee director compensation plan financial

"Annual grant pursuant to Ameresco, Inc.'s non-employee director compensation plan."

Class A Common Stock financial

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

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

contingent right financial

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

vest in full financial

"The RSUs vest in full on the first anniversary of the grant date."

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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
Estimated average burden
hours per response:			0.5

X

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

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^*

Patton Charles R.

(Last) (First) (Middle)

C/O AMERESCO, INC.

111 SPEEN STREET, SUITE 410

(Street)

FRAMINGHAM MASSACHUSETTS 01701

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/04/2026

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

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

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

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	06/04/2026		M		10,435	A	$0	23,824	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
Restricted Stock Unit(1)	(2)	06/04/2026		M			10,435	06/04/2026(3)	06/04/2026	Class A Common Stock	10,435	$0	0	D

Explanation of Responses:

1. Annual grant pursuant to Ameresco, Inc.'s non-employee director compensation plan.

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

3. The RSUs vest in full on the first anniversary of the grant date, assuming continues service through the vesting date.

Remarks:

	/s/ David J. Corrsin, attorney-in-fact	06/05/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Ameresco (AMRC) director Charles R. Patton report?

Charles R. Patton reported acquiring 10,435 Ameresco Class A shares by exercising Restricted Stock Units at $0.00 per share. This was a compensation-related equity conversion, not an open-market stock purchase or sale.

How many Ameresco (AMRC) shares does Charles R. Patton hold after this Form 4?

After the reported transaction, Charles R. Patton directly holds 23,824 shares of Ameresco Class A Common Stock. This reflects his position following the exercise of 10,435 Restricted Stock Units into common shares.

Was the Ameresco (AMRC) Form 4 transaction a stock purchase or sale?

The Form 4 does not show an open-market purchase or sale. It records the exercise of 10,435 Restricted Stock Units into Ameresco Class A Common Stock at $0.00 per share as part of equity compensation.

What are the terms of the Ameresco (AMRC) Restricted Stock Units reported?

Each Restricted Stock Unit represents a contingent right to receive one Ameresco Class A share. According to the disclosure, the RSUs vest in full on the first anniversary of the grant date, assuming continued service through that vesting date.

How is the Ameresco (AMRC) director equity grant described in the Form 4 footnotes?

The equity is described as an annual grant under Ameresco’s non-employee director compensation plan. The footnotes state that the Restricted Stock Units convert into Class A Common Stock on vesting, subject to continued service through the one-year anniversary of the grant.