Ameresco, Inc. (AMRC) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

52,939,496Shares Outstanding

1,764,031Shares held by institutions

$57,313,367Value of institutional holdings

61.99%Institutional ownership %

1.60%Shares Changed QoQ

177No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Recent 13F filings as of December 2025 show that 177 institutional investors hold a position in Ameresco, Inc. (NYSE:AMRC).

Institutional ownership in Ameresco edged down to 62.0% in December 2025, compared to 63.5% in September 2025.
On a quarter-over-quarter basis, institutional holdings shifted by 1.60%, with a year-over-year a decrease of 0.56% in the count of filers.
During the quarter, 88 institutions bought more Ameresco shares, 54 sold shares, and 35 of the 177 total investors held their position steady.
This class of investors increased its holdings in Ameresco to 32.82Mn shares for the 13F-cycle ending December 2025, up by 518.06K shares quarter on quarter, and up 584.00K shares year over year.
WELLINGTON MANAGEMENT GROUP LLP continues to be the largest institutional holder of Ameresco as of December 31, 2025, with a position of 3.90Mn shares, representing 7.37% of the company's outstanding stock.
Among the most significant buyers of Ameresco during December 2025 were FIRST TRUST ADVISORS LP (889.82K), AMERICAN CENTURY COMPANIES INC (294.94K), DRIEHAUS CAPITAL MANAGEMENT LLC (289.96K), Swedbank AB (254.00K), COOPER CREEK PARTNERS MANAGEMENT LLC (239.03K).
Leading sellers of Ameresco stock in December 2025 included Grantham, Mayo, Van Otterloo & Co. LLC (879.60K), WELLINGTON MANAGEMENT GROUP LLP (834.25K), ROYAL BANK OF CANADA (285.78K), DnB Asset Management AS (249.55K), First Eagle Investment Management, LLC (145.70K).
The top 10 institutional holders of Ameresco for the quarter ending December 2025 included WELLINGTON MANAGEMENT GROUP LLP (3.90Mn), BlackRock, Inc. (2.47Mn), VANGUARD GROUP INC (2.41Mn), Grantham, Mayo, Van Otterloo & Co. LLC (2.32Mn), STATE STREET CORP (1.32Mn), D. E. Shaw & Co., Inc. (1.28Mn), DIMENSIONAL FUND ADVISORS LP (1.27Mn), ROYCE & ASSOCIATES LP (1.07Mn), FIRST TRUST ADVISORS LP (1.07Mn), Granahan Investment Management, LLC (848.01K).

177 Institutional Holders

1,764,031 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
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
Redwood Grove Capital, LLC	31 Dec, 2025	492,625	-127,000	-20.50%	$14,428,986.00

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