Ameresco, Inc. (AMRC) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

53,370,000Shares Outstanding

33,810,472Shares held by institutions

$943,312,169Value of institutional holdings

63.35%Institutional ownership %

1.88%Shares Changed QoQ

179No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Ameresco, Inc. (NYSE:AMRC) has 179 institutional investors that have filed 13F reports for the period ending December 2025.

These investors held 63.1% of outstanding shares in December 2025, down from 63.2% in September 2025.
Their total shares held in AMRC increased 2.09% quarter over quarter, and separately, investors owning Ameresco increased 0.56% from a year ago.
Of these 179 funds, 90 grew their exposure to Ameresco, 54 cut back, and 35 maintained positions.
Altogether, these fund groups held 33.68Mn shares in AMRC by December 2025, up by 690.01K shares quarter on quarter, and up 1.2Mn shares year over year.
GAGNON SECURITIES LLC leads ownership in AMRC with 840.06K shares as of December 31, 2025, equal to 1.57% of outstanding shares.
Leading buyers of Ameresco shares for the quarter ending December 2025 were EXCHANGE TRADED CONCEPTS, LLC (310.35K), WEALTH ENHANCEMENT ADVISORY SERVICES, LLC (15.02K), GAGNON SECURITIES LLC (7.18K), Clean Yield Group (3.72K), Guinness Asset Management LTD (1.68K).
The biggest sellers of Ameresco for the quarter ending December 2025 included SG Americas Securities, LLC (127.8K), Guinness Atkinson Asset Management Inc (14.71K), MOODY NATIONAL BANK TRUST DIVISION (5.21K), Janney Montgomery Scott LLC (2.58K), Sterling Capital Management LLC (786).
Ameresco's 10 largest shareholders as of December 2025 include GAGNON SECURITIES LLC (840.06K), Gagnon Advisors, LLC (472.8K), EXCHANGE TRADED CONCEPTS, LLC (310.35K), Guinness Asset Management LTD (186.93K), Clean Yield Group (66.46K), MOODY NATIONAL BANK TRUST DIVISION (35.46K), Janney Montgomery Scott LLC (27.57K), WEALTH ENHANCEMENT ADVISORY SERVICES, LLC (15.02K), SG Americas Securities, LLC (14.22K), Guinness Atkinson Asset Management Inc (12.77K) per Business Quant data.

179 Institutional Holders

33,810,472 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
WELLINGTON MANAGEMENT GROUP LLP	31 Dec, 2025	3,901,333	-834,252	-17.62%	$114,270,044.00
BlackRock, Inc.	31 Dec, 2025	2,466,764	47,601	1.97%	$72,251,532.00
VANGUARD GROUP INC	31 Dec, 2025	2,414,838	2,478	0.10%	$70,730,606.00
Grantham, Mayo, Van Otterloo & Co. LLC	31 Dec, 2025	2,323,792	-879,601	-27.46%	$68,063,868.00
State Street Corp	31 Dec, 2025	1,324,494	-137,222	-9.39%	$38,794,429.00
D. E. Shaw & Co., Inc.	31 Dec, 2025	1,277,177	122,936	10.65%	$37,408,515.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	1,272,601	34,279	2.77%	$37,274,438.00
ROYCE & ASSOCIATES LP	31 Dec, 2025	1,066,792	102,782	10.66%	$31,246,338.00
FIRST TRUST ADVISORS LP	31 Dec, 2025	1,066,571	889,820	503.43%	$31,239,864.00
Granahan Investment Management, LLC	31 Dec, 2025	848,007	-42,065	-4.73%	$24,838,125.00
GAGNON SECURITIES LLC	31 Dec, 2025	832,884	-26,525	-3.09%	$24,395,172.00
DnB Asset Management AS	31 Dec, 2025	785,043	-249,551	-24.12%	$22,993,909.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	762,226	-11,863	-1.53%	$22,329,509.00
Swedbank AB	31 Dec, 2025	740,000	624,000	537.93%	$21,674,600.00
Handelsbanken Fonder AB	31 Dec, 2025	650,836	45,506	7.52%	$19,063.00
Royal Bank Of Canada	31 Dec, 2025	599,561	-285,777	-32.28%	$17,560,000.00
Morgan Stanley	31 Dec, 2025	583,754	59,096	11.26%	$17,098,174.00
First Eagle Investment Management, LLC	31 Dec, 2025	574,673	-145,699	-20.23%	$16,832,172.00
Bandera Partners LLC	31 Dec, 2025	526,769	0	0.00%	$15,429,064.00
DRIEHAUS CAPITAL MANAGEMENT LLC	31 Dec, 2025	504,658	289,959	135.05%	$14,781,433.00

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