Ameresco, Inc. (AMRC) ownership: Grantham, Mayo, Van Otterloo & Co. LLC 15% · institutions 64% (13F 2026-03-31). Insider activity, 90 days: Insiders bought (0 sales, 13 open-market buys). 10 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| Wellington Management | 3541577.00 | $90.31M | 6.6% | 2026-03-31 |
| BlackRock | 2456791.00 | $62.65M | 4.6% | 2026-03-31 |
| Vanguard | 2450821.00 | $62.50M | 4.6% | 2026-03-31 |
| Grantham, Mayo, Van Otterloo & Co. LLC | 2229634.00 | $56.86M | 4.1% | 2026-03-31 |
| Dimensional Fund Advisors | 1439669.00 | $36.71M | 2.7% | 2026-03-31 |
| State Street | 1329513.00 | $33.90M | 2.5% | 2026-03-31 |
| D. E. Shaw | 1271969.00 | $32.44M | 2.4% | 2026-03-31 |
| Royce & Associates LP | 1249908.00 | $31.87M | 2.3% | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Buy | null | 2026-08-28 | |
| Buy | null | 2026-08-26 | |
| Buy | null | 2026-08-26 | |
| Buy | null | 2026-08-24 | |
| Buy | null | 2026-08-24 | |
| Buy | null | 2026-08-24 | |
| Buy | null | 2026-08-24 | |
| Buy | null | 2026-08-24 |
Back to AMRC overview · AMRC earnings · All congressional trades
Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.