AMRC · Ameresco, Inc. · Shareholders & Ownership
Every disclosed holder of AMRC in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns AMRC
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positionsNo chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 34,795,337 | 65.57% |
| Insiders (Forms 3, 4, 5) | 0 | 0.00% |
| 13D/G-only blocks | 22,732,060 | 42.84% |
| Remaining | 4,461,186 | -8.41% |
| Registered funds (N-PORT, not summed) | 12,985,447 | 24.47% |
Shares outstanding: 53,066,211, the issuer's latest cover-page count restated onto today's split basis.
Insiders are listed but not summed: the issuer has more than one class of common stock and Forms 3, 4 and 5 report one issuer-wide balance across them.
Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of AMRC
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
WELLINGTON MANAGEMENT GROUP LLP
13F
CIK 902219 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,374,767 | ||
| 2 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,651,574 | ||
| 2.1 |
iShares Russell 2000 ETF
Fund
S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
856,237 | ||
| 2.2 |
iShares Russell 2000 Value ETF
Fund
S000004342 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
309,031 | ||
| 2.3 |
Master Small Cap Index Series
Fund
S000002716 · Registered fund · Jun 30, 2026
Quantitative Master Series LLC, not summed
|
61,320 | ||
| 2.4 |
iShares Core S&P Total U.S. Stock Market ETF
Fund
S000004317 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
47,232 | ||
| 2.5 |
iShares Russell 3000 ETF
Fund
S000004341 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
8,023 | ||
| 3 |
Grantham, Mayo, Van Otterloo & Co. LLC
13F
CIK 1352662 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,030,950 | ||
| 3.1 |
GMO Resources Fund
Fund
S000034948 · Registered fund · May 31, 2026
GMO TRUST, not summed
|
555,885 | ||
| 3.2 |
GMO Climate Change Fund
Fund
S000056707 · Registered fund · May 31, 2026
GMO TRUST, not summed
|
526,763 | ||
| 3.3 |
GMO Resource Transition Fund
Fund
S000079719 · Registered fund · May 31, 2026
GMO TRUST, not summed
|
122,290 | ||
| 3.4 |
GMO Implementation Fund
Fund
S000036091 · Registered fund · May 31, 2026
GMO TRUST, not summed
|
33,993 | ||
| 4 |
DIMENSIONAL FUND ADVISORS LP
13G
CIK 354204 · Registered investment adviser · Sep 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
1,815,018 | ||
| 4.1 |
DIMENSIONAL FUND ADVISORS LP
13F
CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,601,338 | ||
| 4.2 |
U.S. SMALL CAP VALUE PORTFOLIO
Fund
S000000987 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
327,105 | ||
| 4.3 |
Dimensional US Small Cap Value ETF
Fund
S000075151 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
202,236 | ||
| 4.4 |
Dimensional U.S. Targeted Value ETF
Fund
S000070901 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
168,283 | ||
| 4.5 |
U.S. SMALL CAP PORTFOLIO
Fund
S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
153,838 | ||
| 5 |
GAGNON SECURITIES LLC
13G
CIK 1125725 · Registered investment adviser · Aug 20, 2026
Rule 13d-1(c), passive investor, not summed
|
1,762,866 | ||
| 5.1 |
GAGNON SECURITIES LLC
13F
CIK 1125725 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
826,562 | ||
| 6 |
|
1,738,193 | ||
| 7 |
|
1,601,127 | ||
| 7.1 |
State Street(R) SPDR(R) S&P Kensho New Economies Composite ETF
Fund
S000063362 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
550,281 | ||
| 7.2 |
State Street(R) SPDR(R) S&P Kensho Clean Power ETF
Fund
S000063360 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
245,526 | ||
| 7.3 |
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund
S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
11,800 | ||
| 7.4 |
State Street(R) SPDR(R) S&P Kensho Intelligent Structures ETF
Fund
S000059700 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
8,490 | ||
| 7.5 |
State Street Total Return V.I.S. Fund
Fund
S000001637 · Registered fund · Jun 30, 2026
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
|
828 | ||
| 8 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,430,762 | ||
| 9 |
D. E. Shaw & Co., Inc.
13F
CIK 1009207 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,258,266 | ||
| 10 |
Sakellaris George P
Insider
CIK 1496665 · Sep 10, 2026
Director, President and CEO, 10% Owner, issuer-wide, not summed
|
1,219,847 | ||
| 10.1 |
|
20,723,638 | ||
| 11 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
1,041,295 | ||
| 12 |
DNB Asset Management AS
13F
CIK 1456670 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,025,498 | ||
| 13 |
ROYCE & ASSOCIATES LP
13F
CIK 906304 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
998,183 | ||
| 13.1 |
Royce Small-Cap Opportunity Fund
Fund
S000009512 · Registered fund · Jun 30, 2026
ROYCE FUND, not summed
|
277,559 | ||
| 13.2 |
Royce Smaller-Companies Growth Fund
Fund
S000009517 · Registered fund · Jun 30, 2026
ROYCE FUND, not summed
|
106,000 | ||
| 13.3 |
Royce Micro-Cap Fund
Fund
S000009506 · Registered fund · Jun 30, 2026
ROYCE FUND, not summed
|
70,770 | ||
| 13.4 |
Royce Capital Fund - Micro-Cap Portfolio
Fund
S000009496 · Registered fund · Jun 30, 2026
ROYCE CAPITAL FUND, not summed
|
23,046 | ||
| 14 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
914,162 | ||
| 15 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
862,848 | ||
| 16 |
Handelsbanken Fonder AB
13F
CIK 1398318 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
857,979 | ||
| 17 |
AMERICAN CENTURY COMPANIES INC
13F
CIK 748054 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
798,121 | ||
| 18 |
Legal & General Group Plc
13F
CIK 764068 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
796,268 | ||
| 19 |
First Eagle Investment Management, LLC
13F
CIK 1325447 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
749,081 | ||
| 19.1 |
First Eagle Small Cap Opportunity Fund
Fund
S000072438 · Registered fund · Jul 31, 2026
First Eagle Funds, not summed
|
672,080 | ||
| 20 |
|
726,028 | ||
| 21 |
|
718,000 | ||
| 22 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
648,022 | ||
| 23 |
Redwood Grove Capital, LLC
13F
CIK 1691170 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
543,525 | ||
| 24 |
Bandera Partners LLC
13F
CIK 1399386 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
476,309 | ||
| 25 |
Gagnon Advisors, LLC
13F
CIK 1599466 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
472,798 | ||
| 26 |
ROYAL BANK OF CANADA
13F
CIK 1000275 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
418,879 | ||
| 27 |
Avantis U.S. Small Cap Value ETF
Fund
S000066459 · Registered fund · May 31, 2026
American Century ETF Trust, not summed
|
395,969 | ||
| 28 |
VANGUARD SMALL-CAP INDEX FUND
Fund
S000002845 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
380,327 | ||
| 29 |
MACKENZIE FINANCIAL CORP
13F
CIK 919859 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
371,053 | ||
| 30 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
356,768 | ||
| 31 |
THE HARTFORD SMALL COMPANY FUND
Fund
S000003597 · Registered fund · Jul 31, 2026
HARTFORD MUTUAL FUNDS, INC, not summed
|
341,095 | ||
| 32 |
JCP Investment Management, LLC
13F
CIK 1461945 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
339,000 | ||
| 33 |
EXCHANGE TRADED CONCEPTS, LLC
13F
CIK 1457320 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
320,568 | ||
| 34 |
Invesco Ltd.
13F
CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
318,835 | ||
| 34.1 |
Invesco WilderHill Clean Energy ETF
Fund
S000003053 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
253,897 | ||
| 34.2 |
Invesco RAFI US 1500 Small-Mid ETF
Fund
S000013120 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
57,264 | ||
| 34.3 |
Invesco Russell 2000 Dynamic Multifactor ETF
Fund
S000064608 · Registered fund · May 31, 2026
Invesco Exchange-Traded Self-Indexed Fund Trust, not summed
|
637 | ||
| 35 |
FIRST TRUST ADVISORS LP
13F
CIK 1125816 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
300,100 | ||
| 35.1 |
First Trust Dow Jones Select MicroCap Index Fund
Fund
S000010772 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund, not summed
|
102,078 | ||
| 35.2 |
First Trust Small Cap Core AlphaDEX Fund
Fund
S000017339 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
|
94,819 | ||
| 35.3 |
First Trust NASDAQ Clean Edge Green Energy Index Fund
Fund
S000015169 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund, not summed
|
86,568 | ||
| 35.4 |
First Trust Small Cap Value AlphaDEX Fund
Fund
S000031807 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
|
17,319 | ||
| 35.5 |
First Trust Multi Cap Value AlphaDEX Fund
Fund
S000017342 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
|
2,995 | ||
| 36 |
SILVERCREST ASSET MANAGEMENT GROUP LLC
13F
CIK 1232395 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
295,419 | ||
| 37 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
293,011 | ||
| 37.1 |
Small Cap Index Fund
Fund
S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
16,607 | ||
| 38 |
First Trust Portfolios L.P.
13G
CIK 1184765 · Unknown · Sep 30, 2025
Rule 13d-1(b), qualified institution
|
270,136 | ||
| 39 |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
267,385 | ||
| 39.1 |
Schwab U.S. Small-Cap ETF
Fund
S000026636 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
145,916 | ||
| 39.2 |
Schwab Small-Cap Index Fund
Fund
S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
79,706 | ||
| 39.3 |
Schwab Total Stock Market Index Fund
Fund
S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
23,341 | ||
| 39.4 |
Schwab U.S. Broad Market ETF
Fund
S000026631 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
18,500 | ||
| 40 |
VANGUARD SMALL-CAP VALUE INDEX FUND
Fund
S000002847 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
241,189 | ||
| 41 |
HARTFORD SMALL COMPANY HLS FUND
Fund
S000003220 · Registered fund · Jun 30, 2026
HARTFORD SERIES FUND INC, not summed
|
221,977 | ||
| 42 |
|
213,601 | ||
| 43 |
Rock Point Advisors, LLC
13F
CIK 1301540 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
211,765 | ||
| 44 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
205,721 | ||
| 45 |
Guinness Asset Management LTD
13F
CIK 1409661 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
193,399 | ||
| 46 |
SUSQUEHANNA INTERNATIONAL GROUP, LLP
13F
CIK 1446194 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
186,919 | ||
| 47 |
DekaBank Deutsche Girozentrale
13F
CIK 1456228 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
184,935 | ||
| 48 |
NYLIM WMC Small Companies Fund
Fund
S000036715 · Registered fund · Jul 31, 2026
NYLIM FUNDS TRUST, not summed
|
179,840 | ||
| 49 |
Russell Investments Group, Ltd.
13F
CIK 1692234 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
175,755 | ||
| 49.1 |
Tax-Managed Real Assets Fund
Fund
S000064943 · Registered fund · Jul 31, 2026
RUSSELL INVESTMENT CO, not summed
|
149,198 | ||
| 50 |
VANGUARD RUSSELL 2000 INDEX FUND
Fund
S000030003 · Registered fund · May 31, 2026
VANGUARD SCOTTSDALE FUNDS, not summed
|
165,104 |
27 more nested rows are not shown here; Every filing lists them all.
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
Showing 1–50 of 301 holders
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