Latest Period
Q1 2026
Security Snapshot
Ameresco, Inc. - Common Stock (AMRC) Institutional Ownership
CUSIP: 02361E108
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
185
Shares (Excl. Options)
33,109,023
Price
$25.50
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- Type / Class
- Equity / Common Stock
- Symbol
- AMRC on NYSE
- Shares outstanding
- 34,721,343
- Price per share
- $26.91
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 33,109,023
- Total reported value
- $843,999,136
- % of total 13F portfolios
- 0%
- Share change
- -124,062
- Value change
- -$8,406,868
- Number of holders
- 185
- Price from insider filings
- $26.91
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Key facts
- AMRC - Ameresco, Inc. - Common Stock is tracked under CUSIP 02361E108.
- 185 institutions reported positions in Q1 2026.
- 8 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 187 to 185 between Q4 2025 and Q1 2026.
- Reported value moved from $970,752,681 to $843,999,136.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 185 institutions filings for Q1 2026.
Security key
02361E108
Latest holder period
Q1 2026
13F holders
185
13D/G owners
8
CIK / CUSIP context first
Open Q1 2026 holders
AMRC full holder history
Ameresco, Inc. SEC filings
Ameresco, Inc. company facts
Ameresco, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 02361E108:
Significant Owners of Ameresco, Inc. - Common Stock (AMRC) based on Schedule 13D/G filings
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Sakellaris George P | 40% | $208,479,798 | 20,723,638 | Sakellaris George P | 31 Dec 2024 | |||
| WELLINGTON MANAGEMENT GROUP LLP | 10% | -9.1% | $93,497,633 | -$9,497,558 | 3,541,577 | -9.2% | Wellington Management Group LLP | 31 Mar 2026 |
| Grantham, Mayo, Van Otterloo & Co. LLC | 6.7% | -28% | $67,994,154 | -$25,737,125 | 2,323,792 | -27% | Grantham, Mayo, Van Otterloo & Co. LLC | 31 Dec 2025 |
| Gagnon Neil | 5% | $17,486,222 | 1,738,193 | Neil Gagnon | 03 Mar 2025 | |||
| GAGNON SECURITIES LLC | 4.9% | $57,668,412 | 1,717,344 | Neil Gagnon | 30 Sep 2025 | |||
| Handelsbanken Fonder AB | 4.9% | $16,865,610 | 1,676,502 | Handelsbanken Fonder AB | 30 Sep 2024 | |||
| FIRST TRUST PORTFOLIOS LP | 0.78% | -93% | $9,071,167 | -$53,793,985 | 270,136 | -86% | First Trust Portfolios L.P. | 30 Sep 2025 |
| MACQUARIE GROUP LTD | 0% | -107% | $936 | -$18,566,022 | 93 | -100% | Macquarie Group Limited | 31 Mar 2025 |
As of 31 Mar 2026, 185 institutional investors reported holding 33,109,023 shares of Ameresco, Inc. - Common Stock (AMRC). This represents 95% of the company’s total 34,721,343 outstanding shares.
Top 25 Institutional Shareholders
The largest institutional shareholders of Ameresco, Inc. - Common Stock (AMRC) together control 73% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| WELLINGTON MANAGEMENT GROUP LLP | 10% | 3,541,577 | -9.2% | 0.02% | $90,310,215 |
| BlackRock, Inc. | 7.1% | 2,456,791 | -0.4% | 0% | $62,648,160 |
| Grantham, Mayo, Van Otterloo & Co. LLC | 6.4% | 2,229,634 | -4.1% | 0.15% | $56,855,667 |
| DIMENSIONAL FUND ADVISORS LP | 4.1% | 1,439,669 | +13% | 0.01% | $36,710,591 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.9% | 1,358,899 | 0% | 0% | $34,651,925 |
| STATE STREET CORP | 3.8% | 1,329,513 | +0.38% | 0% | $33,902,582 |
| D. E. Shaw & Co., Inc. | 3.7% | 1,271,969 | -0.41% | 0.03% | $32,435,210 |
| ROYCE & ASSOCIATES LP | 3.6% | 1,249,908 | +17% | 0.31% | $31,872,654 |
| DNB Asset Management AS | 2.6% | 902,286 | +15% | 0.08% | $23,008,293 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.4% | 845,869 | 0% | 0% | $21,569,660 |
| GAGNON SECURITIES LLC | 2.4% | 840,063 | +0.86% | 4.9% | $21,421,607 |
| Handelsbanken Fonder AB | 2.3% | 815,153 | +25% | 0.07% | $20,786,000 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.3% | 792,853 | +4% | 0% | $20,221,412 |
| MORGAN STANLEY | 1.9% | 670,622 | +15% | 0% | $17,100,862 |
| Swedbank AB | 1.9% | 645,000 | +74% | 0.02% | $16,447,500 |
| Granahan Investment Management, LLC | 1.8% | 630,073 | -26% | 0.78% | $16,066,861 |
| First Eagle Investment Management, LLC | 1.6% | 555,334 | -3.4% | 0.02% | $14,161,018 |
| Legal & General Group Plc | 1.6% | 549,210 | +17% | 0% | $14,004,856 |
| AMERICAN CENTURY COMPANIES INC | 1.5% | 526,154 | +33% | 0.01% | $13,416,927 |
| ROYAL BANK OF CANADA | 1.5% | 504,124 | -16% | 0% | $12,856,000 |
| Bandera Partners LLC | 1.4% | 476,309 | -9.6% | 5.5% | $12,145,880 |
| Gagnon Advisors, LLC | 1.4% | 472,798 | 0% | 8.9% | $12,056,349 |
| Redwood Grove Capital, LLC | 1.4% | 469,525 | -4.7% | 3.9% | $11,972,888 |
| UBS Group AG | 1.2% | 418,130 | +5.2% | 0% | $10,662,316 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 1.1% | 372,100 | +5% | 0.19% | $9,488,550 |
Institutional Holders of Ameresco, Inc. - Common Stock (AMRC) across Reporting Periods
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 33,109,023 | $843,999,136 | -$8,406,868 | $25.50 | 185 |
| 2025 Q4 | 33,168,344 | $970,752,681 | -$20,999,219 | $29.29 | 187 |
| 2025 Q3 | 33,578,261 | $1,128,241,586 | +$51,896,128 | $33.58 | 184 |
| 2025 Q2 | 32,594,338 | $495,167,111 | +$31,308,024 | $15.19 | 162 |
| 2025 Q1 | 30,870,224 | $372,937,868 | -$38,123,941 | $12.08 | 172 |
| 2024 Q4 | 31,818,622 | $747,184,485 | -$36,263,264 | $23.48 | 176 |
| 2024 Q3 | 32,379,110 | $1,227,496,721 | -$19,506,810 | $37.94 | 180 |
| 2024 Q2 | 32,883,731 | $951,179,817 | +$52,255,741 | $28.81 | 182 |
| 2024 Q1 | 31,447,732 | $758,060,120 | -$12,958,533 | $24.13 | 177 |
| 2023 Q4 | 32,069,637 | $1,015,431,596 | -$45,110,023 | $31.67 | 176 |
| 2023 Q3 | 33,378,145 | $1,285,384,679 | -$2,213,378 | $38.56 | 186 |
| 2023 Q2 | 33,049,458 | $1,607,197,415 | +$73,729,061 | $48.63 | 197 |
| 2023 Q1 | 31,475,327 | $1,544,339,598 | +$18,827,966 | $49.22 | 203 |
| 2022 Q4 | 30,819,958 | $1,762,065,476 | +$6,681,122 | $57.14 | 212 |
| 2022 Q3 | 30,552,867 | $2,029,445,661 | -$4,607,606 | $66.48 | 210 |
| 2022 Q2 | 30,690,156 | $1,394,967,127 | +$63,650,146 | $45.56 | 203 |
| 2022 Q1 | 29,026,816 | $2,310,696,635 | +$165,539,459 | $79.50 | 194 |
| 2021 Q4 | 26,834,159 | $2,183,667,088 | +$35,403,958 | $81.44 | 209 |
| 2021 Q3 | 26,635,083 | $1,556,286,092 | +$47,037,026 | $58.43 | 188 |
| 2021 Q2 | 25,820,272 | $1,621,710,890 | +$57,021,305 | $62.72 | 184 |
| 2021 Q1 | 25,090,420 | $1,218,569,980 | +$191,804,660 | $48.63 | 198 |
| 2020 Q4 | 20,729,091 | $1,082,858,555 | +$36,597,757 | $52.24 | 194 |
| 2020 Q3 | 19,205,214 | $641,442,542 | +$2,471,241 | $33.40 | 144 |
| 2020 Q2 | 19,164,440 | $532,362,006 | +$25,962,492 | $27.78 | 120 |
| 2020 Q1 | 18,296,995 | $311,552,145 | +$35,814,637 | $17.03 | 104 |
| 2019 Q4 | 16,161,439 | $282,942,690 | +$17,483,400 | $17.50 | 96 |
| 2019 Q3 | 15,087,624 | $242,408,037 | +$12,159,955 | $16.07 | 94 |
| 2019 Q2 | 14,337,568 | $211,164,869 | +$5,222,870 | $14.73 | 88 |
| 2019 Q1 | 13,972,041 | $225,830,505 | +$4,099,678 | $16.18 | 94 |
| 2018 Q4 | 13,747,128 | $193,825,545 | +$14,196,371 | $14.10 | 93 |
| 2018 Q3 | 12,657,171 | $172,734,943 | +$2,572,549 | $13.65 | 86 |
| 2018 Q2 | 12,567,187 | $150,793,016 | +$8,965,682 | $12.00 | 85 |
| 2018 Q1 | 11,816,167 | $153,607,176 | +$1,309,918 | $13.00 | 80 |
| 2017 Q4 | 11,755,600 | $101,102,318 | +$2,638,626 | $8.60 | 76 |
| 2017 Q3 | 11,484,002 | $89,572,279 | +$2,742,464 | $7.80 | 73 |
| 2017 Q2 | 11,133,264 | $85,669,191 | +$6,047,141 | $7.70 | 74 |
| 2017 Q1 | 10,362,270 | $67,865,414 | -$458,605 | $6.55 | 67 |
| 2016 Q4 | 11,661,899 | $64,122,280 | -$1,482,199 | $5.50 | 72 |
| 2016 Q3 | 11,866,859 | $62,415,067 | +$2,034,869 | $5.26 | 65 |
| 2016 Q2 | 12,130,976 | $53,009,155 | -$4,541,030 | $4.37 | 75 |
| 2016 Q1 | 12,863,110 | $61,334,114 | +$3,314,873 | $4.77 | 69 |
| 2015 Q4 | 11,987,286 | $74,846,944 | +$1,629,780 | $6.25 | 77 |
| 2015 Q3 | 11,896,118 | $69,987,690 | -$616,534 | $5.88 | 66 |
| 2015 Q2 | 11,890,495 | $90,961,357 | -$3,964,559 | $7.65 | 71 |
| 2015 Q1 | 12,389,853 | $91,624,792 | -$326,254 | $7.40 | 77 |
| 2014 Q4 | 12,264,694 | $85,819,347 | +$4,236,403 | $7.00 | 72 |
| 2014 Q3 | 11,810,644 | $80,892,629 | +$621,495 | $6.85 | 73 |
| 2014 Q2 | 11,703,797 | $82,370,157 | +$4,657,279 | $7.03 | 71 |
| 2014 Q1 | 10,690,072 | $80,803,513 | +$7,802 | $7.56 | 70 |