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AMRC · Amended Current Report (Form 8-K/A) · Filed May 8, 2026

Ameresco Inc — Amended Current Report (Form 8-K/A)

Form
8-K/A
Filed
May 8, 2026
Period
May 4, 2026
Ticker
AMRC
Accession
0001628280-26-032993
Boardroom Alpha · Filing insights

Ameresco and a HASI affiliate executed a Contribution and Equity Purchase Agreement to form Neogenyx Fuels LLC.

About Ameresco Inc
Market cap
$1.9B
1Y TSR
+110.6%
3Y TSR
−12.0%
Board grade
C-
Sector
Industrials
CEO
George P Sakellaris
Last annual meeting: Jun 4, 2026 · View full Ameresco Inc profile →
amrc-20260504


UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 8-K/A
(Amendment No.1)
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): May 4, 2026
Ameresco, Inc.
(Exact Name of Registrant as Specified in Charter)
Delaware 001-34811 04-3512838
(State or Other Juris-
diction of Incorporation)
 (Commission
File Number)
 (IRS Employer
Identification No.)
111 Speen Street, Suite 410,Framingham,MA1701
(Address of Principal Executive Offices)(Zip Code)
Registrant’s telephone number, including area code: (508) 661-2200
(Former Name or Former Address, if Changed Since Last Report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
 Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
 Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
 Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
 Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading SymbolName of exchange on which registered
Class A Common Stock, par value $0.0001 per shareAMRCNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1033 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.








EXPLANATORY NOTE

This Current Report on Form 8-K/A (this “Amendment”) amends the Current Report on Form 8-K filed by Ameresco, Inc. (the "Company") with the Securities and Exchange Commission on May 4, 2026 (the “Original Report”) related to the entry into a contribution and equity purchase agreement (the “Contribution Agreement”) between the Company and an affiliate of HA Sustainable Infrastructure Capital, Inc., a Delaware corporation (“HASI” and such affiliate, “JV Investor” and, collectively with AMRC Biogas Holdco and the other parties to the Contribution Agreement, the “Parties”) to form a new joint venture, Neogenyx Fuels LLC, a Delaware limited liability company (the “Joint Venture”) reported under Item 1.01 of Form 8-K.

The sole purpose of this Amendment is to file as an exhibit the Contribution Agreement that was described in the Original Report. Except as described in this Amendment, the information in the Original Report remains unchanged, and this Amendment does not provide any additional information or update any disclosures contained in the Original Report.


Item 9.01. Financial Statements and Exhibits.

(d) Exhibits
EXHIBIT INDEX
Exhibit No.Description
2.1
#Certain schedules and similar attachments to this exhibit have been omitted pursuant to Item 601(a)(5) of Regulation S-K. The registrant agrees to furnish supplementally a copy of any omitted schedule or other similar attachment to the U.S. Securities and Exchange Commission upon request. In addition, portions of this exhibit are redacted pursuant to Item 601(b)(10)(iv) of Regulation S-K. The registrant agrees to promptly furnish supplementally an unredacted copy of the exhibit to the U.S. Securities and Exchange Commission upon request.
&Portions of this exhibit are redacted pursuant to Item 601(b)(2)(ii) of Regulation S-K. The Company agrees to promptly furnish supplementally an unredacted copy of the exhibit to the U.S. Securities and Exchange Commission upon request.



SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
AMERESCO, INC.
May 8, 2026By:/s/ Mark A. Chiplock
Mark A. Chiplock
Executive Vice President, Chief Financial Officer


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Reference

Frequently asked questions

When did Ameresco Inc file this 8-K/A?
Ameresco Inc (AMRC) filed this Amended Current Report (Form 8-K/A) with the SEC on May 8, 2026. The accession number assigned by EDGAR is 0001628280-26-032993.
What does an 8-K/A disclose?
Form 8-K is the SEC's current-report form, used to disclose material events between periodic reports (10-K / 10-Q). Triggers include CEO/CFO departures, acquisitions, bankruptcies, earnings releases, auditor changes, changes in fiscal year, and amendments to corporate governance. Each 8-K is keyed to one or more Item numbers (1.01 through 9.01).
What is the key takeaway from this filing?
Ameresco and a HASI affiliate executed a Contribution and Equity Purchase Agreement to form Neogenyx Fuels LLC. This is Boardroom Alpha's one-line summary of the amended current report; see the full filing text above for the formal disclosure.
What Item codes does an 8-K cover?
An 8-K's Item codes (1.01 through 9.01) specify what kind of event is being disclosed — e.g. Item 1.01 for entering a material agreement, Item 5.02 for departure/election of directors and executive officers, Item 8.01 for other events. The Item codes for this 8-K appear in the filing text above.
Where can I find Ameresco Inc's prior current reports on EDGAR?
The SEC EDGAR browser lists every 8-K/A Ameresco Inc has filed under CIK 1488139, sortable by date. Use the "View on SEC EDGAR" link in the page header, or browse directly via https://www.sec.gov/cgi-bin/browse-edgar.
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