Thermon Group Holdings, Inc. (THR) — Institutional Holders, Q2 2026

3 institutional investment managers reported a THR position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $4.8M. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← THR stock profile

THR in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

Added to

Trimmed

Sold out

211

Biggest buyers

IFP AdvisorsNew · +6 sh+$367.00

Biggest sellers

FMRSold out · -2,970,723 sh-$181.6M
BlackRockSold out · -2,588,149 sh-$158.2M
DIMENSIONAL FUND ADVISORSSold out · -1,730,100 sh-$105.8M
VANGUARD PORTFOLIO MANAGEMENTSold out · -1,404,091 sh-$85.8M
VANGUARD CAPITAL MANAGEMENTSold out · -1,387,057 sh-$84.8M

THR 13F holders ranked 1–3 of 3

Institutional investors reporting a position in Thermon Group Holdings, Inc. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	Nuveen#1 · 78,193 sh	78,193	$4.8M	<0.01%	-81.7%
2	IFP Advisors#2 · 6 sh	6	$367.00	—	New
3	HUNTINGTON NATIONAL BANK#3 · 1 sh	1	$61.00	0.00%	-99.3%

Funds that sold out of THR in Q2 2026 (211)

Held THR at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held THR in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
FMR2,970,723 sh	2,970,723	$149.7M
BlackRock2,588,149 sh	2,588,149	$130.4M
DIMENSIONAL FUND ADVISORS1,730,100 sh	1,730,100	$87.2M
VANGUARD PORTFOLIO MANAGEMENT1,404,091 sh	1,404,091	$70.8M
VANGUARD CAPITAL MANAGEMENT1,387,057 sh	1,387,057	$69.9M
Medina Value Partners966,319 sh	966,319	$48.7M
GW&K Investment Management952,518 sh	952,518	$48.0M
GEODE CAPITAL MANAGEMENT832,516 sh	832,516	$42.0M
WESTWOOD GROUP782,763 sh	782,763	$39.5M
STATE STREET772,529 sh	772,529	$38.9M
Magnetar Financial757,996 sh	757,996	$38.2M
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP679,685 sh	679,685	$34.3M
WILLIAM BLAIR INVESTMENT MANAGEMENT647,539 sh	647,539	$32.6M
Harvey Partners646,728 sh	646,728	$32.6M
NEEDHAM INVESTMENT MANAGEMENT632,500 sh	632,500	$31.9M
CITIGROUP577,926 sh	577,926	$29.1M
AMERIPRISE FINANCIAL569,672 sh	569,672	$28.7M
VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V.516,471 sh	516,471	$26.0M
Qube Research & Technologies Ltd508,956 sh	508,956	$25.7M
GOLDMAN SACHS GROUP486,880 sh	486,880	$24.5M
ALPINE ASSOCIATES MANAGEMENT485,882 sh	485,882	$24.5M
Swedbank AB470,000 sh	470,000	$23.7M
NEW SOUTH CAPITAL MANAGEMENT458,387 sh	458,387	$23.1M
BALYASNY ASSET MANAGEMENT L.P.450,549 sh	450,549	$22.7M
SOROS FUND MANAGEMENT448,088 sh	448,088	$22.6M
AQR Arbitrage416,851 sh	416,851	$21.0M
KENNEDY CAPITAL MANAGEMENT368,773 sh	368,773	$18.6M
TWO SIGMA INVESTMENTS356,278 sh	356,278	$18.0M
Assenagon Asset Management S.A.345,731 sh	345,731	$17.4M
UBS Group AG336,551 sh	336,551	$17.0M
DEUTSCHE BANK AG\319,662 sh	319,662	$16.1M
NORTHERN313,446 sh	313,446	$15.8M
First Eagle Investment Management305,373 sh	305,373	$15.4M
Invesco Ltd.294,827 sh	294,827	$14.9M
CHARLES SCHWAB INVESTMENT MANAGEMENT269,314 sh	269,314	$13.6M
Meros Investment Management241,463 sh	241,463	$12.2M
JPMORGAN CHASE234,793 sh	234,793	$11.5M
VANGUARD FIDUCIARY213,453 sh	213,453	$10.8M
MILLENNIUM MANAGEMENT212,505 sh	212,505	$10.7M
JANE STREET GROUP205,581 sh	205,581	$10.4M
PRICE T ROWE ASSOCIATES195,526 sh	195,526	$9.9M
SILVERCREST ASSET MANAGEMENT GROUP187,770 sh	187,770	$9.5M
ALLIANCEBERNSTEIN L.P.250,167 sh	250,167	$9.3M
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO169,388 sh	169,388	$8.5M
MORGAN STANLEY165,468 sh	165,468	$8.3M
Russell Investments Group, Ltd.156,754 sh	156,754	$7.9M
OBERWEIS ASSET MANAGEMENT154,700 sh	154,700	$7.8M
BANK OF AMERICA153,491 sh	153,491	$7.7M
EverSource Wealth Advisors133,680 sh	133,680	$7.6M
RBF Capital150,000 sh	150,000	$7.6M
LAZARD ASSET MANAGEMENT147,930 sh	147,930	$7.5M
Allspring Global Investments125,825 sh	125,825	$6.3M
Alberta Investment Management114,567 sh	114,567	$5.8M
Atom Investors111,077 sh	111,077	$5.6M
Intrinsic Edge Capital Management110,000 sh	110,000	$5.5M
Bank of New York Mellon109,534 sh	109,534	$5.5M
De Lisle Partners LLP104,194 sh	104,194	$5.3M
DIAMOND HILL CAPITAL MANAGEMENT100,199 sh	100,199	$5.1M
Hudson Bay Capital Management100,000 sh	100,000	$5.0M
HEALTHCARE OF ONTARIO PENSION PLAN FUND94,180 sh	94,180	$4.7M
1060 Capital89,625 sh	89,625	$4.5M
AMERICAN CENTURY COMPANIES78,863 sh	78,863	$4.0M
Hirtle Callaghan75,000 sh	75,000	$3.8M
HOTCHKIS & WILEY CAPITAL MANAGEMENT66,219 sh	66,219	$3.3M
Swiss National Bank65,200 sh	65,200	$3.3M
Informed Momentum62,328 sh	62,328	$3.1M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME58,894 sh	58,894	$3.0M
Oliver Luxxe Assets58,051 sh	58,051	$2.9M
TUDOR INVESTMENT ET AL57,833 sh	57,833	$2.9M
RICE HALL JAMES & ASSOCIATES57,048 sh	57,048	$2.9M
MARTINGALE ASSET MANAGEMENT L P54,709 sh	54,709	$2.8M
Riverpoint Wealth Management52,108 sh	52,108	$2.6M
CITADEL ADVISORS46,955 sh	46,955	$2.4M
Kintayl Capital44,382 sh	44,382	$2.2M
SEI INVESTMENTS41,316 sh	41,316	$2.1M
WELLS FARGO & COMPANY40,167 sh	40,167	$2.0M
NEW YORK LIFE INVESTMENT MANAGEMENT39,205 sh	39,205	$2.0M
RHUMBLINE ADVISERS38,824 sh	38,824	$2.0M
PRINCIPAL FINANCIAL GROUP38,321 sh	38,321	$1.9M
Yakira Capital Management38,096 sh	38,096	$1.9M
Polar Asset Management Partners37,987 sh	37,987	$1.9M
STIFEL FINANCIAL34,416 sh	34,416	$1.7M
Sagefield Capital33,867 sh	33,867	$1.7M
WATER ISLAND CAPITAL32,987 sh	32,987	$1.7M
VICTORY CAPITAL MANAGEMENT32,700 sh	32,700	$1.6M
Versor Investments32,074 sh	32,074	$1.6M
CREDIT AGRICOLE S A31,000 sh	31,000	$1.6M
SUSQUEHANNA INTERNATIONAL GROUP, LLP28,808 sh	28,808	$1.5M
Legal & General Group Plc27,351 sh	27,351	$1.4M
RAYMOND JAMES FINANCIAL26,335 sh	26,335	$1.3M
Aquatic Capital Management24,542 sh	24,542	$1.2M
BARCLAYS PLC23,173 sh	23,173	$1.2M
Y-Intercept (Hong Kong) Ltd22,830 sh	22,830	$1.2M
Cerity Partners22,683 sh	22,683	$1.1M
Chicago Capital Management30,069 sh	30,069	$1.1M
VANGUARD ASSET MANAGEMENT, Ltd22,336 sh	22,336	$1.1M
ABC ARBITRAGE SA21,895 sh	21,895	$1.1M
MARSHALL WACE, LLP19,700 sh	19,700	$992.9K
HARVEST MANAGEMENT19,200 sh	19,200	$967.7K
MetLife Investment Management18,481 sh	18,481	$931.4K

And 111 smaller positions.

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.