Schedule 13G/A: GMO holds sole voting on 3,203,393 AMRC shares

Rhea-AI Filing Summary

Grantham, Mayo, Van Otterloo & Co. LLC (GMO) filed Amendment No. 3 to a Schedule 13G reporting its beneficial ownership of Ameresco Inc. (AMRC) common stock. GMO reported beneficial ownership of 3,203,393 shares, representing 9.23% of the class, as of the event date 09/30/2025.

The filing states GMO has sole voting power and sole dispositive power over 3,203,393 shares, with no shared voting or dispositive power. GMO is identified as an investment adviser (IA). The certification affirms the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of Ameresco.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 3)

Ameresco Inc

(Name of Issuer)

Common Stock

(Title of Class of Securities)

02361E108

(CUSIP Number)

09/30/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 02361E108

1

Names of Reporting Persons

Grantham, Mayo, Van Otterloo & Co. LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

MASSACHUSETTS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 3,203,393.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 3,203,393.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,203,393.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

9.23 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Ameresco Inc
(b)	Address of issuer's principal executive offices: 111 Speen Street Suite 410, Framingham, MA, 01701
Item 2.
(a)	Name of person filing: Grantham, Mayo, Van Otterloo & Co. LLC
(b)	Address or principal business office or, if none, residence: 53 State Street, Suite 3300, Boston, MA, 02109
(c)	Citizenship: USA
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 02361E108
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 3203393
(b)	Percent of class: 9.23 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 3203393
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 3203393
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Grantham, Mayo, Van Otterloo & Co. LLC

Signature:	Gregory L. Pottle
Name/Title:	Chief Compliance Officer
Date:	11/05/2025

FAQ

What stake in Ameresco (AMRC) did GMO report on its Schedule 13G/A?

GMO reported beneficial ownership of 3,203,393 shares, or 9.23% of Ameresco’s common stock.

What voting and dispositive powers did GMO report for AMRC shares?

GMO reported sole voting power over 3,203,393 shares and sole dispositive power over 3,203,393 shares, with no shared powers.

What is the relevant date for GMO’s AMRC ownership in this filing?

The reported ownership relates to the Date of Event 09/30/2025.

How is GMO classified in the Ameresco (AMRC) Schedule 13G/A?

GMO is classified as an Investment Adviser (IA).

What does GMO’s certification in the 13G/A say about control intent?

GMO certified the securities were acquired and are held in the ordinary course of business and not to change or influence control.

Which class of Ameresco securities is covered?

The filing covers common stock of Ameresco Inc. (CUSIP 02361E108).