AMRC · Ameresco, Inc.
Market Cap
$1.23B
Shares
53.07M
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 188
Total Value: $977,222,447
Total Shares: 35,406,614
Showing 1–100
of 193 holdings by value
· page 1 of 2
Institutional Ownership Trend
26 quarters
Holder Concentration
Across 188 13F filers · Δ vs Mar 31, 2026Top Holder
9.5%
−1.1 pts
Top 5
31.8%
−1.3 pts
Top 10
49.3%
−0.6 pts
HHI
353
Broadly held−13
Quarterly Activity
vs Mar 31, 2026
New
30
Increased
74
Decreased
57
Sold Out
29
Unchanged
27
Holder count:
+1
Institutional value:
+15.0%
Shares held:
+6.2%
Top Buyers
vs Mar 31, 2026| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mega MILLENNIUM MANAGEMENT LLC | +1,234,942 | 1,487,282 | |
| Mega UBS Group AG | +307,898 | 726,028 | |
| Mega AMERICAN CENTURY COMPANIES INC | +271,967 | 798,121 | |
| Mega STATE STREET CORP | +271,614 | 1,601,127 | |
| Mega Legal & General Group Plc | +247,058 | 796,268 |
Top Sellers
vs Mar 31, 2026| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mid Granahan Investment Management, LLC | −606,451 | 23,622 | |
| Large ROYCE & ASSOCIATES LP | −251,725 | 998,183 | |
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC | −210,859 | 161,241 | |
| Large Grantham, Mayo, Van Otterloo & Co. LLC | −198,684 | 2,030,950 | |
| Mega WELLINGTON MANAGEMENT GROUP LLP | −166,810 | 3,374,767 |
Top New Positions
vs Mar 31, 2026| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Large MACKENZIE FINANCIAL CORP | 371,053 | $10,241,062 | |
| Small JCP Investment Management, LLC | 339,000 | $9,356,400 | |
| Mid Raiffeisen Bank International AG | 100,000 | $2,760,000 | |
| Small Kultura Capital Management LP | 81,500 | $2,249,400 | |
| Mid Engineers Gate Manager LP | 40,714 | $1,123,706 |
Top Sold-Out Positions
vs Mar 31, 2026| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Large Balyasny Asset Management L.P. | 227,505 | $5,801,377 | |
| Large MARSHALL WACE, LLP | 87,176 | $2,222,988 | |
| Mid HARBOR CAPITAL ADVISORS, INC. | 56,585 | $1,442,917 | |
| Mid GSA CAPITAL PARTNERS LLP | 35,631 | $908,590 | |
| Small MOODY NATIONAL BANK TRUST DIVISION | 35,461 | $904,255 |
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega WELLINGTON MANAGEMENT GROUP LLP | $93,143,566 | 9.53% | 3,374,767 | Shares | 2026-08-14 | |
| Mega BlackRock, Inc. | $73,183,435 | 7.49% | 2,651,574 | Shares | 2026-08-07 | |
| Large Grantham, Mayo, Van Otterloo & Co. LLC | $56,054,220 | 5.74% | 2,030,950 | Shares | 2026-08-13 | |
| Mega DIMENSIONAL FUND ADVISORS LP | $44,196,927 | 4.52% | 1,601,338 | Shares | 2026-08-11 | |
| Mega STATE STREET CORP | $44,191,105 | 4.52% | 1,601,127 | Shares | 2026-08-07 | |
| Mega MILLENNIUM MANAGEMENT LLC | $41,048,983 | 4.20% | 1,487,282 | Shares | 2026-08-14 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $39,489,031 | 4.04% | 1,430,762 | Shares | 2026-08-13 | |
| Mega D. E. Shaw & Co., Inc. | $34,728,141 | 3.55% | 1,258,266 | Shares | 2026-08-14 | |
| Large DNB Asset Management AS | $28,303,744 | 2.90% | 1,025,498 | Shares | 2026-08-11 | |
| Large ROYCE & ASSOCIATES LP | $27,549,850 | 2.82% | 998,183 | Shares | 2026-08-14 | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC | $25,230,871 | 2.58% | 914,162 | Shares | 2026-08-13 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC | $23,814,604 | 2.44% | 862,848 | Shares | 2026-08-12 | |
| Large Handelsbanken Fonder AB | $23,680,220 | 2.42% | 857,979 | Shares | 2026-07-10 | |
| Small GAGNON SECURITIES LLC Broker-Dealer | $22,813,111 | 2.33% | 826,562 | Shares | 2026-08-05 | |
| Mega AMERICAN CENTURY COMPANIES INC | $22,028,139 | 2.25% | 798,121 | Shares | 2026-08-12 | |
| Mega Legal & General Group Plc | $21,976,996 | 2.25% | 796,268 | Shares | 2026-08-14 | |
| Large First Eagle Investment Management, LLC | $20,674,635 | 2.12% | 749,081 | Shares | 2026-08-24 | |
| Mega UBS Group AG | $20,038,372 | 2.05% | 726,028 | Shares | 2026-08-13 | |
| Mega Swedbank AB Bank | $19,816,800 | 2.03% | 718,000 | Shares | 2026-07-15 | |
| Mega MORGAN STANLEY | $17,885,403 | 1.83% | 648,022 | Shares | 2026-08-13 | |
| Small Redwood Grove Capital, LLC | $15,001,290 | 1.54% | 543,525 | Shares | 2026-08-14 | |
| Small Bandera Partners LLC | $13,146,128 | 1.35% | 476,309 | Shares | 2026-08-12 | |
| Small Gagnon Advisors, LLC | $13,049,224 | 1.34% | 472,798 | Shares | 2026-08-05 | |
| Mega ROYAL BANK OF CANADA Bank | $11,561,059 | 1.18% | 418,879 | Shares | 2026-08-14 | |
| Large MACKENZIE FINANCIAL CORP | $10,241,062 | 1.05% | 371,053 | Shares | 2026-08-13 | |
| Small JCP Investment Management, LLC | $9,356,400 | 0.96% | 339,000 | Shares | 2026-08-13 | |
| Large EXCHANGE TRADED CONCEPTS, LLC | $8,847,676 | 0.91% | 320,568 | Shares | 2026-08-11 | |
| Mega Invesco Ltd. | $8,799,845 | 0.90% | 318,835 | Shares | 2026-08-14 | |
| Mega FIRST TRUST ADVISORS LP | $8,282,760 | 0.85% | 300,100 | Shares | 2026-08-11 | |
| Large SILVERCREST ASSET MANAGEMENT GROUP LLC | $8,153,564 | 0.83% | 295,419 | Shares | 2026-08-14 | |
| Mega NORTHERN TRUST CORP Bank | $8,087,102 | 0.83% | 293,011 | Shares | 2026-08-13 | |
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $7,379,826 | 0.76% | 267,385 | Shares | 2026-08-14 | |
| Mega JANE STREET GROUP, LLC | $6,836,520 | 0.70% | 247,700 | Call | 2026-08-14 | |
| Small Rock Point Advisors, LLC | $5,844,714 | 0.60% | 211,765 | Shares | 2026-08-06 | |
| Mega VANGUARD FIDUCIARY TRUST CO Bank | $5,677,899 | 0.58% | 205,721 | Shares | 2026-08-13 | |
| Mid Guinness Asset Management LTD | $5,337,812 | 0.55% | 193,399 | Shares | 2026-07-29 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $5,158,964 | 0.53% | 186,919 | Shares | 2026-08-14 | |
| Large DekaBank Deutsche Girozentrale Bank | $5,104,206 | 0.52% | 184,935 | Shares | 2026-08-05 | |
| Mega Russell Investments Group, Ltd. | $4,850,837 | 0.50% | 175,755 | Shares | 2026-08-06 | |
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC | $4,450,251 | 0.46% | 161,241 | Shares | 2026-08-14 | |
| Large TUDOR INVESTMENT CORP ET AL | $3,935,925 | 0.40% | 142,606 | Shares | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC | $3,828,120 | 0.39% | 138,700 | Call | 2026-09-02 | |
| Mid SEGALL BRYANT & HAMILL, LLC | $3,727,600 | 0.38% | 135,058 | Shares | 2026-08-12 | |
| Mega GOLDMAN SACHS GROUP INC | $3,437,910 | 0.35% | 124,562 | Shares | 2026-08-14 | |
| Large Baird Financial Group, Inc. | $3,392,454 | 0.35% | 122,915 | Shares | 2026-08-12 | |
| Mega Bank of New York Mellon Corp Bank | $3,308,631 | 0.34% | 119,878 | Shares | 2026-08-06 | |
| Large KBC Group NV | $3,088,826 | 0.32% | 111,914 | Shares | 2026-08-05 | |
| Small HUSSMAN STRATEGIC ADVISORS, INC. | $2,898,000 | 0.30% | 105,000 | Shares | 2026-08-03 | |
| Mega BNP PARIBAS ARBITRAGE, SA | $2,797,480 | 0.29% | 101,358 | Shares | 2026-08-13 | |
| Mid Raiffeisen Bank International AG Bank | $2,760,000 | 0.28% | 100,000 | Shares | 2026-08-03 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $2,622,938 | 0.27% | 95,034 | Shares | 2026-08-14 | |
| Mega Nuveen, LLC | $2,595,586 | 0.27% | 94,043 | Shares | 2026-08-11 | |
| Large Erste Asset Management GmbH | $2,517,782 | 0.26% | 91,224 | Shares | 2026-07-28 | |
| Mid CONNORS INVESTOR SERVICES INC | $2,493,439 | 0.26% | 90,342 | Shares | 2026-08-14 | |
| Small Kultura Capital Management LP | $2,249,400 | 0.23% | 81,500 | Call | 2026-08-14 | |
| Mega FRANKLIN RESOURCES INC | $2,114,158 | 0.22% | 76,600 | Shares | 2026-08-13 | |
| Small Clean Yield Group | $1,913,149 | 0.20% | 69,317 | Shares | 2026-08-05 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1,824,360 | 0.19% | 66,100 | Call | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC | $1,811,884 | 0.19% | 65,648 | Shares | 2026-09-02 | |
| Mega Amundi | $1,798,554 | 0.18% | 65,165 | Shares | 2026-08-11 | |
| Mega Swiss National Bank Bank | $1,785,720 | 0.18% | 64,700 | Shares | 2026-08-11 | |
| Large Empowered Funds, LLC | $1,760,024 | 0.18% | 63,769 | Shares | 2026-08-17 | |
| Large CAPITAL FUND MANAGEMENT S.A. | $1,730,768 | 0.18% | 62,709 | Shares | 2026-08-13 | |
| Mega WELLS FARGO & COMPANY/MN | $1,681,143 | 0.17% | 60,911 | Shares | 2026-08-14 | |
| Mega Qube Research & Technologies Ltd | $1,490,979 | 0.15% | 54,021 | Shares | 2026-08-14 | |
| Large STATE OF WISCONSIN INVESTMENT BOARD | $1,479,801 | 0.15% | 53,616 | Shares | 2026-08-14 | |
| Large STOREBRAND ASSET MANAGEMENT AS | $1,442,762 | 0.15% | 52,274 | Shares | 2026-08-12 | |
| Large Trexquant Investment LP | $1,442,541 | 0.15% | 52,266 | Shares | 2026-08-14 | |
| Mega JANE STREET GROUP, LLC | $1,424,160 | 0.15% | 51,600 | Put | 2026-08-14 | |
| Large ALPS ADVISORS INC | $1,393,827 | 0.14% | 50,501 | Shares | 2026-07-29 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ | $1,327,339 | 0.14% | 48,092 | Shares | 2026-08-14 | |
| Mega RHUMBLINE ADVISERS | $1,310,006 | 0.13% | 47,464 | Shares | 2026-08-12 | |
| Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $1,173,855 | 0.12% | 42,531 | Shares | 2026-08-13 | |
| Mid ALGERT GLOBAL LLC | $1,159,476 | 0.12% | 42,010 | Shares | 2026-08-13 | |
| Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund | $1,147,276 | 0.12% | 41,568 | Shares | 2026-08-14 | |
| Small IRONWOOD INVESTMENT MANAGEMENT LLC | $1,141,867 | 0.12% | 41,372 | Shares | 2026-08-14 | |
| Large JUPITER ASSET MANAGEMENT LTD | $1,136,650 | 0.12% | 41,183 | Shares | 2026-08-10 | |
| Mid Engineers Gate Manager LP | $1,123,706 | 0.11% | 40,714 | Shares | 2026-08-14 | |
| Large Universal- Beteiligungs- und Servicegesellschaft mbH | $1,119,676 | 0.11% | 40,568 | Shares | 2026-08-06 | |
| Large PANAGORA ASSET MANAGEMENT INC | $1,067,568 | 0.11% | 38,680 | Shares | 2026-08-06 | |
| Mega ALLIANCEBERNSTEIN L.P. | $1,030,584 | 0.11% | 37,340 | Shares | 2026-08-14 | |
| Mega CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension | $1,020,234 | 0.10% | 36,965 | Shares | 2026-08-24 | |
| Mega DEUTSCHE BANK AG\ Bank | $962,025 | 0.10% | 34,856 | Shares | 2026-08-07 | |
| Mega CITIGROUP INC | $958,271 | 0.10% | 34,720 | Shares | 2026-08-03 | |
| Mid DARK FOREST CAPITAL MANAGEMENT LP | $878,314 | 0.09% | 31,823 | Shares | 2026-08-14 | |
| Mega JPMORGAN CHASE & CO | $847,400 | 0.09% | 30,703 | Shares | 2026-08-12 | |
| Mid Fideuram Asset Management (Ireland) dac | $828,000 | 0.08% | 30,000 | Shares | 2026-07-23 | |
| Large FULLER & THALER ASSET MANAGEMENT, INC. | $782,211 | 0.08% | 28,341 | Shares | 2026-08-12 | |
| Mega BARCLAYS PLC | $761,263 | 0.08% | 27,582 | Shares | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC | $745,200 | 0.08% | 27,000 | Put | 2026-09-02 | |
| Small CoreCommodity Management, LLC | $712,576 | 0.07% | 25,818 | Shares | 2026-08-14 | |
| Large Zurcher Kantonalbank (Zurich Cantonalbank) Bank | $703,993 | 0.07% | 25,507 | Shares | 2026-08-12 | |
| Mega VANGUARD ASSET MANAGEMENT, Ltd | $694,968 | 0.07% | 25,180 | Shares | 2026-08-13 | |
| Small Hartree Partners, LP | $690,000 | 0.07% | 25,000 | Shares | 2026-08-12 | |
| Small Crawford Fund Management, LLC | $662,400 | 0.07% | 24,000 | Put | 2026-08-14 | |
| Mid Granahan Investment Management, LLC | $651,967 | 0.07% | 23,622 | Shares | 2026-08-14 | |
| Mega SG Americas Securities, LLC Broker-Dealer | $644,708 | 0.07% | 23,359 | Shares | 2026-08-07 | |
| Micro Kuhn & Co Investment Counsel | $625,140 | 0.06% | 22,650 | Shares | 2026-07-31 | |
| Micro EAGLE HARBOR ASSET MANAGEMENT INC /ADV | $619,150 | 0.06% | 22,433 | Shares | 2026-08-11 | |
| Large Cambridge Investment Research Advisors, Inc. | $613,023 | 0.06% | 22,211 | Shares | 2026-07-30 |
Key facts
CIK
1488139
CUSIP
02361E108
13F (30d)
137 filings
127 filers
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