Ameresco, Inc. filings document the operations, financing, governance, and public-company disclosures of an energy infrastructure solutions provider. Form 8-K reports cover quarterly and annual results, supplemental financial information, project backlog commentary, energy asset activity, and material agreements related to financing arrangements and the company’s biogas business.
Ameresco’s SEC records also describe its senior secured loan agreement, revolving credit facility, term loan obligations, subsidiary guarantees, and collateral arrangements. Proxy filings cover board elections, auditor ratification, executive compensation, stock incentive plan matters, and voting by holders of Class A and Class B common stock. The filings frame risks and disclosures around energy infrastructure projects, distributed energy resources, renewable fuels, customer contracts, capital structure, and governance controls.
Ameresco, Inc. (AMRC) reported that Chief Executive Officer and director George P. Sakellaris purchased 3,000 shares of Class A Common Stock on 2026-08-28 at a weighted average price of $22.13 per share, with individual trade prices ranging from $21.87 to $22.80. Following this purchase, he directly holds 1,013,597 Class A shares. He is also reported as the beneficial owner of 1,100,000 shares held by a trust for his children and 200,000 shares held by his spouse, but he disclaims beneficial ownership of both the trust and spouse-held shares.
Ameresco, Inc. (AMRC) reported that Chief Executive Officer and director George P. Sakellaris purchased 5,000 shares of Class A Common Stock in open-market transactions. On August 26, 2026 he bought 1,000 shares at a weighted average price of $21.92 (within a $21.86–$21.99 range), and on August 27, 2026 he bought 4,000 shares at a weighted average price of $22.84 (within a $22.59–$23.00 range). The report also shows 1,100,000 shares held indirectly by a trust for his children and 200,000 shares held by his spouse; he disclaims beneficial ownership of both indirect positions.
Ameresco, Inc. (AMRC) received a Schedule 13G reporting that investor Neil Gagnon and related advisory entities hold a significant position in the company’s Class A Common Stock. Based on 35,066,211 shares outstanding as of July 31, 2026, Neil Gagnon is reported as beneficially owning 1,762,866 shares, or 5.0% of the class.
Gagnon Securities LLC is reported with beneficial ownership of 999,794 shares (2.9%), and Gagnon Advisors, LLC with 472,798 shares (1.3%). Neil Gagnon has sole voting and dispositive power over 153,541 shares and shared voting and/or dispositive power over additional shares through client accounts and a private fund. The reporting parties state that Gagnon Securities, Gagnon Advisors, and Neil Gagnon expressly disclaim beneficial ownership of securities held in those managed accounts and the fund, which have the economic right to dividends and sale proceeds.
Ameresco, Inc. (AMRC) director Jennifer L. Miller purchased Ameresco Class A Common Stock in the open market. On 2026-08-24, she bought 2,000 shares at $20.96 per share, bringing her directly held position to 34,546 shares. The transaction was not reported under a Rule 10b5-1 trading plan.
Ameresco, Inc. (AMRC) director Joseph W. Sutton reported an open-market purchase of Class A Common Stock. On 2026-08-24, he purchased 9,700 shares at a weighted average price of $20.87 per share, in multiple trades between $20.45 and $21.18. Following this, he directly owns 80,246 shares and indirectly holds 133,355 shares through Sutton Ventures LP.
Ameresco, Inc. (AMRC) reported that Chief Executive Officer George P. Sakellaris, a director and more than ten percent owner, purchased a total of 10,000 shares of Class A Common Stock in open-market transactions on August 24–25, 2026. The purchases consisted of 5,000 shares at a weighted average price of $20.91 (with individual prices from $20.56 to $21.19), 938 shares at a weighted average price of $21.60 (range $20.88 to $21.79), and 4,062 shares at a weighted average price of $22.03 (range $21.80 to $22.15). The filing also reports indirect holdings of 1,100,000 shares by a trust for his children and 200,000 shares held by his spouse, for which he disclaims beneficial ownership. The transactions were not reported as made under a Rule 10b5-1 trading plan.
Ameresco, Inc. (AMRC) director Brian C. Cox reported an open-market or private purchase of Class A Common Stock. On 2026-08-21, he bought 4,625 shares at $21.64 per share. After this transaction, Cox directly holds 44,325 shares of Ameresco Class A Common Stock.
Ameresco, Inc. (AMRC) reported that David J. Corrsin, its Executive Vice President and General Counsel, acquired a stock option for 25,000 shares of Class A common stock on August 17, 2026. The option has an exercise price of $14.55 per share and an expiration date of May 11, 2035, resulting in post-transaction holdings of 25,000 option shares. According to the footnote, this reflects partial vesting of a 50,000-share performance-based option originally granted on May 12, 2025; 25,000 shares vested effective as of his resignation as Executive Vice President, General Counsel and Secretary and transition to Special Legal Advisor, and the remaining 25,000 option shares were forfeited.
Ameresco, Inc. (AMRC) announced that on August 17, 2026, David J. Corrsin, age 68, resigned as a Class II director, effective immediately. His resignation coincides with his retirement from the roles of Executive Vice President and General Counsel, also effective August 17, 2026.
Ameresco states that Mr. Corrsin’s resignation was not due to any disagreement regarding the company’s operations, policies, or practices. He has served as a director since the company’s formation in 2000 and will continue with Ameresco as its Special Legal Advisor, allowing the company to retain his experience and institutional knowledge.
Ameresco, Inc. (AMRC) announced that Mark A. Chiplock has resigned as Executive Vice President, Chief Financial Officer and Chief Accounting Officer, effective September 25, 2026, to accept a CFO role at a private equity-owned company in another industry. The company states his resignation is not due to any disagreement regarding operations, policies or practices and that he will support an orderly transition while Ameresco conducts a search for a new CFO.
Ameresco reiterated its full-year 2026 guidance for revenue of $2.0 billion to $2.2 billion, Adjusted EBITDA of $250 million to $270 million, and Non-GAAP EPS of $1.15 to $1.35. Management highlights Chiplock’s contributions and the strength of the existing financial team as the company enters its next phase of growth.