Who owns Ameresco, Inc.?
Institutional ownership of AMRC from SEC Form 13F filings across 122 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
122
13F holders
$632.6M
value, 2026 filers
45.7%
of shares outstanding (24.3M sh)
13
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of AMRC's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | WELLINGTON MANAGEMENT GROUP LLP | 3.4M | $93.1M | 0.0% | 6.4% | -4.7% |
| 2 | BlackRock, Inc. | 2.7M | $73.2M | 0.0% | 5% | +7.9% |
| 3 | MILLENNIUM MANAGEMENT LLC | 1.5M | $41.0M | 0.0% | 2.8% | +489.4% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 1.4M | $39.5M | 0.0% | 2.7% | +5.3% |
| 5 | D. E. Shaw & Co., Inc. | 1.3M | $34.7M | 0.0% | 2.4% | -1.1% |
| 6 | DNB Asset Management AS | 1.0M | $28.3M | 0.1% | 1.9% | +13.7% |
| 7 | VANGUARD PORTFOLIO MANAGEMENT LLC | 914,162 | $25.2M | 0.0% | 1.7% | +8.1% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 862,848 | $23.8M | 0.0% | 1.6% | +8.8% |
| 9 | Handelsbanken Fonder AB | 857,979 | $23,680 | 0.1% | 1.6% | +5.3% |
| 10 | AMERICAN CENTURY COMPANIES INC | 798,121 | $22.0M | 0.0% | 1.5% | +51.7% |
| 11 | Legal & General Group Plc | 796,268 | $22.0M | 0.0% | 1.5% | +45.0% |
| 12 | UBS Group AG | 726,028 | $20.0M | 0.0% | 1.4% | +73.6% |
| 13 | Swedbank AB | 718,000 | $19.8M | 0.0% | 1.4% | +11.3% |
| 14 | MORGAN STANLEY | 648,022 | $17.9M | 0.0% | 1.2% | -3.4% |
| 15 | EXCHANGE TRADED CONCEPTS, LLC | 641,136 | $17.7M | 0.1% | 1.2% | +106.6% |
| 16 | Bandera Partners LLC | 476,309 | $12.1M | 4.3% | 0.9% | 0.0% |
| 17 | ROYAL BANK OF CANADA | 418,879 | $11.6M | 0.0% | 0.8% | -16.9% |
| 18 | MACKENZIE FINANCIAL CORPNEW | 371,053 | $10.2M | 0.0% | 0.7% | new |
| 19 | Invesco Ltd. | 318,835 | $8.8M | 0.0% | 0.6% | -5.4% |
| 20 | FIRST TRUST ADVISORS LP | 300,100 | $8.3M | 0.0% | 0.6% | +72.5% |
| 21 | SILVERCREST ASSET MANAGEMENT GROUP LLC | 295,419 | $8.2M | 0.1% | 0.6% | -4.9% |
| 22 | NORTHERN TRUST CORP | 293,011 | $8.1M | 0.0% | 0.6% | +7.6% |
| 23 | Sixth Street Partners Management Company, L.P.NEW | 267,385 | $7.4M | 1.3% | 0.5% | new |
| 24 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 267,385 | $7.4M | 0.0% | 0.5% | +5.9% |
| 25 | VANGUARD FIDUCIARY TRUST CO | 205,721 | $5.7M | 0.0% | 0.4% | +2.1% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.