Ameresco (AMRC)
Builds and operates efficiency, renewable-energy and resilient infrastructure for public and commercial customers.
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13F · 13D/G · Form 4
| Institutions | ≈ 65.79% | 34.91M shares | |
|---|---|---|---|
| 193 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail | |||
| Insiders | 45.18% | 23.98M shares | |
| 16 holders · as of Sep 17, 2026 | |||
| Strategic holders | 4.30% | 2.28M shares | |
| 1 holder · as of Feb 3, 2022 | |||
| Adds to | 115.27% | ||
53.07M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
These groups come from separate filings that can overlap, so they add to 115.27%; nothing is left for Other.
This company has 2 share classes; every stake here is a share of the whole company.
13F, as of Jun 30, 2026
193 holders · 34.91M shares · 31 new positions · 104 increased · 57 reduced · 29 closed
| Holder | Shares | % of company | Chg q/q | Filed |
|---|---|---|---|---|
| Wellington Management Group LLP | 3.37M | 6.36% | −166.8K | Aug 14, 2026 |
| BlackRock, Inc. | 2.65M | 5.00% | +194.8K | Aug 7, 2026 |
| Grantham, Mayo, van Otterloo & Co. LLC | 2.03M | 3.83% | −198.7K | Aug 13, 2026 |
| Dimensional Fund Advisors LP | 1.60M | 3.02% | +161.7K | Aug 11, 2026 |
| State Street Corp | 1.60M | 3.02% | +271.6K | Aug 7, 2026 |
| Millennium Management LLC | 1.49M | 2.80% | +1.23M | Aug 14, 2026 |
| Vanguard Capital Management LLC | 1.43M | 2.70% | +71.9K | Aug 13, 2026 |
| D. E. Shaw & Co., Inc. | 1.26M | 2.37% | −13.7K | Aug 14, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Sakellaris George P | 39.50% | 20.72M | 13G | Jan 31, 2025 |
| Wellington Management Group LLP | 10.20% | 3.54M | 13G | May 15, 2026 |
| Grantham, Mayo, Van Otterloo & Co. LLC | 6.67% | 2.32M | 13G | Feb 10, 2026 |
| Millennium Management LLC | 5.20% | 1.82M | 13G | Jul 22, 2026 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Sep 15, 2026 | Louis P. Maltezosofficer: Co-President | Sale | 592 | $22.46 | 33,628 |
| Sep 15, 2026 | Mark Chiplockofficer: EVP, CFO & CAO | Sale | 476 | $22.46 | 2,815 |
| Aug 28, 2026 | George P. Sakellarisdirector, 10 percent owner, officer: Chief Executive Officer | Purchase | 3,000 | $22.13 | 1,013,597 |
| Aug 27, 2026 | George P. Sakellarisdirector, 10 percent owner, officer: Chief Executive Officer | Purchase | 4,000 | $22.84 | 1,010,597 |
| Aug 26, 2026 | George P. Sakellarisdirector, 10 percent owner, officer: Chief Executive Officer | Purchase | 1,000 | $21.92 | 1,006,597 |
| Aug 25, 2026 | George P. Sakellarisdirector, 10 percent owner, officer: Chief Executive Officer | Purchase · 2 lots | 5,000 | $21.95 | 1,005,597 |
| Aug 24, 2026 | George P. Sakellarisdirector, 10 percent owner, officer: Chief Executive Officer | Purchase | 5,000 | $20.91 | 1,000,597 |
| Aug 24, 2026 | Joseph W. Suttondirector | Purchase | 9,700 | $20.87 | 80,246 |
| Aug 24, 2026 | Jennifer L. Millerdirector | Purchase | 2,000 | $20.96 | 34,546 |
| Aug 21, 2026 | Brian C. Coxdirector | Purchase | 4,625 | $21.64 | 44,325 |
House and Senate disclosures
Not reported.