SCHEDULE: Wellington Management Discloses Ameresco Stake

Wellington Management Group LLP and its affiliates have filed a Schedule 13G, reporting beneficial ownership of 10.2% of Ameresco, Inc. common stock as of March 31, 2026.

Summary

• Wellington Management Group LLP, along with its affiliates Wellington Group Holdings LLP, Wellington Investment Advisors Holdings LLP, and Wellington Management Company LLP, has filed an amended Schedule 13G.
• The filing indicates that as of March 31, 2026, these entities collectively beneficially own 3,541,577 shares of Ameresco, Inc. common stock.
• This represents approximately 10.2% of the class of securities.
• Wellington Management Company LLP, specifically, has shared voting power over 2,738,348 shares and shared dispositive power over 3,162,104 shares, representing 9.1% of the class.
• The filing is made under Rule 13d-1(b), indicating the reporting persons are investment advisers.
• The securities are owned of record by clients of the Wellington Investment Advisers, who have the right to receive or direct dividends and sale proceeds.
• No single client is known to hold more than 5% of the class of securities.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral filing. While significant institutional ownership can be positive, the Schedule 13G itself does not provide insights into the company's performance or future prospects.

Positives

• Significant institutional ownership by a reputable investment management firm, potentially indicating confidence in Ameresco's long-term prospects.
• The filing confirms a substantial stake, suggesting a stable shareholder base.
• The reporting entities are classified as investment advisers, implying a professional and strategic approach to their holdings.

Negatives

• The filing does not contain financial performance data or operational updates, making it difficult to assess the underlying business performance.
• The disclosure is primarily a reporting of ownership, not an endorsement or strategic commentary on Ameresco's business.

Risks

• Potential for future changes in ownership by Wellington Management, which could impact Ameresco's stock price and stability.
• The concentration of ownership among a few related entities could lead to coordinated actions that may not align with the interests of all shareholders.

Future Outlook

This filing does not contain forward-looking statements or guidance regarding Ameresco, Inc.'s future performance. It solely reports on beneficial ownership.

Industry Context

StockSavvy.ai notes that significant filings by large investment managers like Wellington Management often signal substantial conviction in a company's long-term strategy or market position. For companies in the energy efficiency and renewable energy sectors like Ameresco, such institutional backing can be a positive indicator.

Stakeholder Impact

• Shareholders: The increased institutional ownership by a well-regarded firm may be viewed positively, potentially increasing investor confidence. However, it also means a larger portion of the company is held by a single entity, which could influence future corporate actions.
• Employees: Stable, long-term institutional ownership can contribute to company stability, which may indirectly benefit employees.
• Creditors: A significant institutional investor can be seen as a sign of financial stability, which is generally positive for creditors.

Next Steps

• Wellington Management will continue to hold its beneficial ownership in Ameresco, Inc.
• Any future changes in ownership will be reported via subsequent filings.

Key Dates

Keywords

Ameresco Inc, Wellington Management, Schedule 13G, Beneficial Ownership, Institutional Investor, Common Stock, SEC Filing, Investment Adviser