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AMRC · Ameresco, Inc. · Shareholders & Ownership

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$19.08 -0.76 (-3.83%)
Market Cap
$1.03B
Shares
53.07M
Volume · Oct 22 635.14K Avg daily vol (3M) 669.72K

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 positions

No 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
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
Neil Gagnon
13G CIK 1070170 · Unknown · Mar 3, 2025
Rule 13d-1(c), passive investor
1,738,193
7
STATE STREET CORP
13F CIK 93751 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
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
Sakellaris George P
13G CIK 1496665 · Unknown · Dec 31, 2024
Rule 13d-1(d), exempt investor
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
UBS Group AG
13F CIK 1610520 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
726,028
21
Swedbank AB
13F CIK 946431 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
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
Sutton Joseph W.
Insider CIK 1496494 · Aug 24, 2026
Director, issuer-wide, not summed
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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Key facts CIK 1488139 CUSIP 02361E108 13F (30d) 17 filings 17 filers Visit website Investor relations