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) is held by 179 institutional investors per 13F filings through December 2025.

Collectively, these holders controlled 63.1% of Ameresco's outstanding shares in December 2025, down from 63.2% in September 2025.
They increased total shares held in AMRC by 2.09% quarter over quarter, and investors in 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.
Institutional investors collectively held 33.68Mn shares in Ameresco as of December 2025, up by 690.01K shares quarter on quarter, and up 1.2Mn shares year over year.
WELLINGTON MANAGEMENT GROUP LLP holds the largest position in AMRC at 3.9Mn shares as of December 31, 2025, or 7.31% of shares outstanding.
The largest buyers of Ameresco for the quarter ending December 2025 were FIRST TRUST ADVISORS LP (889.82K), Swedbank AB (624.0K), AMERICAN CENTURY COMPANIES INC (294.94K), DRIEHAUS CAPITAL MANAGEMENT LLC (289.96K), COOPER CREEK PARTNERS MANAGEMENT LLC (239.03K).
Top sellers of AMRC stock for the quarter ending December 2025 included Grantham, Mayo, Van Otterloo & Co. LLC (879.6K), WELLINGTON MANAGEMENT GROUP LLP (834.25K), Royal Bank Of Canada (285.78K), Barclays Plc (269.45K), DnB Asset Management AS (249.55K).
Ameresco's 10 largest shareholders as of December 2025 include WELLINGTON MANAGEMENT GROUP LLP (3.9Mn), 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) 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

1 - 20 of 179

Research Tools