Ameresco Inc (AMRC)
Who owns Ameresco Inc (AMRC)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 91.6% of the shares are freely tradable; institutional investors hold 99.3%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Wellington Management Company LLP | 6.69 | 3,541,577 | -9.2 | 03/31/2026 |
| BlackRock Inc | 4.64 | 2,456,791 | -0.4 | 03/31/2026 |
| Vanguard Group Inc | 4.56 | 2,414,838 | +0.1 | 12/31/2025 |
| Grantham, Mayo, Van Otterloo & Co., LLC | 4.21 | 2,229,634 | -4.1 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 2.72 | 1,439,669 | +13.1 | 03/31/2026 |
| Vanguard Capital Management, LLC | 2.57 | 1,358,899 | +0.0 | 03/31/2026 |
| State Street Corp | 2.51 | 1,329,513 | +0.4 | 03/31/2026 |
| D. E. Shaw & Co LP | 2.40 | 1,271,969 | -0.4 | 03/31/2026 |
| Royce & Associates, LP | 2.36 | 1,249,908 | +17.2 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 1.85 | 981,495 | +0.0 | 04/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.