Thermon Group Holdings, Inc. (THR) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

33,183,163Shares Outstanding

33,706,804Shares held by institutions

$2,296,444,557Value of institutional holdings

101.58%Institutional ownership %

2.04%Shares Changed QoQ

188No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Thermon Group Holdings, Inc. (NYSE:THR) showed up in the 13F filings of 188 institutional investors as of December 2025.

Collectively, these holders controlled 100.9% of Thermon Group Holdings's outstanding shares in December 2025, down from 101.1% in September 2025.
Their total shares held in THR increased 1.65% from the prior quarter, while the number of investors in Thermon Group Holdings increased 11.9% year over year.
Among the 188 funds, 102 bought more Thermon Group Holdings shares, 69 sold down, and 17 held their ground.
Altogether, these fund groups held 33.47Mn shares in THR by December 2025, up by 543.06K shares quarter on quarter, and up 349.11K shares year over year.
As of December 31, 2025, ALPINE ASSOCIATES MANAGEMENT INC. held the largest stake in Thermon Group Holdings with 485.88K shares, accounting for 1.46% of total shares outstanding.
Top purchasers of THR stock for the quarter ending December 2025 included ALPINE ASSOCIATES MANAGEMENT INC. (485.88K), Assenagon Asset Management S.A. (90.04K), Oliver Luxxe Assets LLC (28.46K), Sterling Capital Management LLC (9.44K), KESTRA PRIVATE WEALTH SERVICES, LLC (6.66K).
Leading sellers of Thermon Group Holdings shares for the quarter ending December 2025 were SG Americas Securities, LLC (16.68K), STRS OHIO (3.0K).
Business Quant data shows the 10 biggest positions in Thermon Group Holdings as of December 2025 are held by ALPINE ASSOCIATES MANAGEMENT INC. (485.88K), Assenagon Asset Management S.A. (345.73K), Oliver Luxxe Assets LLC (58.05K), STRS OHIO (16.1K), Sterling Capital Management LLC (11.13K), KESTRA PRIVATE WEALTH SERVICES, LLC (6.66K), Yorktown Management & Research Co Inc (6.3K), CONGRESS ASSET MANAGEMENT CO (6.1K), SG Americas Securities, LLC (5.93K), Pictet Asset Management Holding SA (5.56K).

188 Institutional Holders

33,706,804 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
VANGUARD GROUP INC	31 Dec, 2025	3,069,937	-98,994	-3.12%	$114,078,858.00
BlackRock, Inc.	31 Dec, 2025	2,681,650	146,250	5.77%	$99,650,114.00
FMR LLC	31 Dec, 2025	2,417,762	-5,771	-0.24%	$89,844,036.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	1,730,579	-38,635	-2.18%	$64,308,526.00
GW&K Investment Management, LLC	31 Dec, 2025	1,627,257	197,715	13.83%	$60,469.00
Swedbank AB	31 Dec, 2025	1,388,000	630,000	83.11%	$51,578,080.00
Morgan Stanley	31 Dec, 2025	1,175,768	456,243	63.41%	$43,691,573.00
Medina Value Partners, LLC	31 Dec, 2025	1,043,526	56,361	5.71%	$38,777,426.00
Westwood Holdings Group Inc	31 Dec, 2025	976,821	-510,342	-34.32%	$36,298,668.00
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	31 Dec, 2025	887,451	-92,897	-9.48%	$32,977,679.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	782,077	1,574	0.20%	$29,066,788.00
Harvey Partners, LLC	31 Dec, 2025	772,070	570	0.07%	$28,690,121.00
State Street Corp	31 Dec, 2025	761,840	-20,588	-2.63%	$28,309,974.00
WELLINGTON MANAGEMENT GROUP LLP	31 Dec, 2025	731,373	-124,866	-14.58%	$27,177,820.00
VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V.	31 Dec, 2025	689,677	-435,373	-38.70%	$25,628,397.00
Ameriprise Financial Inc	31 Dec, 2025	673,335	183,549	37.48%	$25,019,865.00
NEEDHAM INVESTMENT MANAGEMENT LLC	31 Dec, 2025	620,000	-3,500	-0.56%	$23,039,200.00
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	31 Dec, 2025	508,339	79,693	18.59%	$18,889,877.00
Goldman Sachs Group Inc	31 Dec, 2025	481,806	241,719	100.68%	$17,903,910.00
NEW SOUTH CAPITAL MANAGEMENT INC	31 Dec, 2025	474,599	-19,020	-3.85%	$17,636,099.00

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