Thermon Group Holdings

THR • NYSE

Thermon Group Holdings is a industrial - machinery company in the industrials sector on NYSE, led by Bruce Thames, with a market cap of $1.3B. As of Q3 2025, 100% of shares are held by 156 institutional investors, with VANGUARD GROUP INC as the largest holder at 9.58%.

President and Chief Executive OfficerBruce Thames

Market Cap$1.3B

Industrial - Machinery

Industrials

Employees1.4K

Websitethermon.com

Country

United States of America

Overview

Overview of institutional ownership in THR as of Q3 2025 with a market cap of $883.5M

All Institutions

Institutions: 156
Value Held: $885.2M
Shares Held: 33.2M
Avg Position: $5.7M
Median Position: $695.4K

Hedge Funds

Hedge Funds: 19
Value Held: $77.4M
Shares Held: 2.9M
Avg Position: $4.1M
Median Position: $954.1K

Ownership Breakdown

Institutional (non-HF)

91.43%

$807.8M

Hedge Funds

8.76%

$77.4M

Retail & Other

Based on market cap of $883.5M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in THR as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
VANGUARD GROUP INC Institution	Salim Ramji CEO	$84.7M 0.00% of portfolio	9.58% 3.2M shares	≤ Q2 2013 Held for 12y 5m+	$6.69T
B BlackRock, Inc. Institution	-	$67.7M 0.00% of portfolio	7.67% 2.5M shares	≤ Q2 2013 Held for 12y 5m+	$5.67T
FMR LLC Institution	-	$64.8M 0.00% of portfolio	7.33% 2.4M shares	Q3 2021 Held for 4y 2m	$1.92T
DIMENSIONAL FUND ADVISORS LP Long Only Manager	David Paul Butler CEO	$47.3M 0.01% of portfolio	5.35% 1.8M shares	≤ Q2 2013 Held for 12y 5m+	$466.32B
WESTWOOD HOLDINGS GROUP INC Institution	Brian O. Casey CEO	$39.7M 0.29% of portfolio	4.50% 1.5M shares	Q1 2024 Held for 1y 8m	$13.8B
GANNETT WELSH & KOTLER Long Only Manager	Thomas F X Powers CEO	$38.2M 0.34% of portfolio	4.32% 1.4M shares	Q4 2024 Held for 11 months	$11.2B
T T. Rowe Price Investment Management, Inc. Insurance Manager	John Edward Robison President	$31.2M 0.02% of portfolio	3.54% 1.2M shares	Q3 2022 Held for 3y 2m	$161.58B
K KEMPEN CAPITAL MANAGEMENT N.V. Institution	-	$30.1M 0.27% of portfolio	3.40% 1.1M shares	Q2 2017 Held for 8y 5m	$11.2B
M Medina Singh Partners, LLC Hedge Fund•Value	Kristofer Lee Medina Managing Partner	$26.4M 6.16% of portfolio	2.99% 987.2K shares	Q4 2024 Held for 11 months	$428.0M
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC Long Only Manager	Brent Walker Gledhill CEO	$26.2M 0.07% of portfolio	2.96% 980.3K shares	Q2 2023 Held for 2y 5m	$38.7B

Net Capital Flow

Institutional buying and selling activity for THR in Q3 2025

Traded: +$23.8M
Buyers: 83
Sellers: 81
Total Bought: +$103.3M
Total Sold: −$79.5M
Avg Position: $4.7M

Biggest Buyers

Institution	Net Bought	Current Position
GANNETT WELSH & KOTLER Long Only Manager	+$21.8M +817.1K shares	$38.2M 1.4M shares
MORGAN STANLEY RIA/Wealth	+$11.9M +446.7K shares	$19.2M 719.5K shares
UBS Group AG Institution	+$5.7M +213.9K shares	$7.7M 288.4K shares
WESTWOOD HOLDINGS GROUP INC Institution	+$4.5M +169.9K shares	$39.7M 1.5M shares
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	+$4.4M +163.9K shares	$4.4M 163.9K shares
ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant	+$3.9M +144.8K shares	$11.5M 428.6K shares
S Swedbank AB Institution	+$3.7M +137.0K shares	$20.3M 758.0K shares
TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy	+$3.6M +133.6K shares	$4.2M 156.2K shares
H Harvey Partners, LLC Institution	+$3.5M +131.8K shares	$20.6M 771.5K shares
A Assenagon Asset Management S.A. Institution	+$3.5M +129.8K shares	$6.8M 255.7K shares

Biggest Sellers

Institution	Net Sold	Current Position
T T. Rowe Price Investment Management, Inc. Insurance Manager	−$26.5M −990.9K shares	$31.2M 1.2M shares
B BROWN ADVISORY INC RIA/Wealth	−$6.0M −225.5K shares	$23.6M 881.6K shares
C Cubist Systematic Strategies, LLC Institution	−$4.5M −159.8K shares	Sold Off 0 shares
R ROYAL BANK OF CANADA Institution	−$3.4M −128.1K shares	$3.1M 117.9K shares
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$3.3M −117.6K shares	Sold Off 0 shares
B BlackRock, Inc. Institution	−$2.4M −91.2K shares	$67.7M 2.5M shares
GSA CAPITAL PARTNERS LLP Hedge Fund•Quant	−$2.3M −80.9K shares	Sold Off 0 shares
J JANE STREET GROUP, LLC Institution	−$2.1M −78.8K shares	$953.4K 35.7K shares
Trexquant Investment LP Hedge Fund•Quant	−$2.0M −70.8K shares	Sold Off 0 shares
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC Long Only Manager	−$1.6M −59.4K shares	$26.2M 980.3K shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited THR in Q3 2025

New Positions: 11
New Value: $4.7M
Exited Positions: 30
Exited Value: $20.8M

New Positions

Institution	Position Value
Intrinsic Edge Capital Management LLC Hedge Fund•Multi-Strategy	$3.2M 120.0K shares
Numerai GP LLC Hedge Fund•Quant	$563.6K 21.1K shares
Vident Advisory, LLC ETF Provider	$532.4K 19.9K shares
F FIDUCIARY TRUST CO Institution	$223.8K 8.4K shares
Goss Wealth Management LLC RIA/Wealth	$82.5K 3.1K shares
S State of Alaska, Department of Revenue Institution	$48.8K 1.8K shares
FIRST HORIZON NATIONAL CORP RIA/Wealth	$16.5K 617.0 shares
O Optiver Holding B.V. Institution	$6.1K 228.0 shares
P Point72 Asia Pte. Ltd. Institution	$2.3K 87.0 shares
S SBI Securities Co., Ltd. Institution	$27.0 1.0 shares

Exited Positions

Institution	Previous Position
C Cubist Systematic Strategies, LLC Institution	$4.5M 159.8K shares
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	$3.3M 117.6K shares
GSA CAPITAL PARTNERS LLP Hedge Fund•Quant	$2.3M 80.9K shares
Trexquant Investment LP Hedge Fund•Quant	$2.0M 70.8K shares
LAZARD ASSET MANAGEMENT LLC Long Only Manager	$1.5M 54.4K shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$1.4M 50.0K shares
X XTX Topco Ltd Institution	$718.0K 25.6K shares
FRANKLIN RESOURCES INC Institution	$684.9K 24.4K shares
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	$674.1K 24.0K shares
R READYSTATE ASSET MANAGEMENT LP Hedge Fund•Multi-Strategy	$485.7K 17.3K shares

Options Activity

Institutions with the largest Call and Put options positions in THR as of Q3 2025

Call Positions: 0
Call Value: -
Put Positions: 0
Put Value: -

Call Positions

Institution	Position Value
No call positions found

Put Positions

Institution	Position Value
No put positions found

Most Committed Institutions

Institutions with THR as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
M Medina Singh Partners, LLC Hedge Fund•Value	Kristofer Lee Medina Managing Partner	6.16% $26.4M	2.99% 987.2K shares	Q4 2024 Held for 11 months	$428.0M
Meros Investment Management, LP Long Only Manager	Kenneth Scott Canon CEO	4.02% $9.4M	1.06% 352.0K shares	Q3 2023 Held for 2y 2m	$234.2M
H Harvey Partners, LLC Institution	-	1.88% $20.6M	2.33% 771.5K shares	Q3 2020 Held for 5y 2m	$1.1B
L Lightrock Netherlands B.V. Institution	-	1.83% $7.0M	0.93% 307.1K shares	Q4 2024 Held for 11 months	$382.4M
NEEDHAM INVESTMENT MANAGEMENT LLC Hedge Fund•Long/Short	George Austin Needham CEO	1.16% $16.7M	1.89% 623.5K shares	Q4 2021 Held for 3y 11m	$1.4B
NEW SOUTH CAPITAL MANAGEMENT INC Long Only Manager	David Stephen Morrow President	0.60% $13.2M	1.49% 493.6K shares	≤ Q2 2013 Held for 12y 5m+	$2.2B
Intrinsic Edge Capital Management LLC Hedge Fund•Multi-Strategy	Mark David Coe Managing Partner	0.49% $3.2M	0.36% 120.0K shares	Q3 2025 Held for 2 months	$658.6M
H HEARTLAND ADVISORS INC Long Only Manager	William Richard Nasgovitz CEO	0.36% $6.8M	0.77% 256.0K shares	Q4 2021 Held for 3y 11m	$1.9B
GANNETT WELSH & KOTLER Long Only Manager	Thomas F X Powers CEO	0.34% $38.2M	4.32% 1.4M shares	Q4 2024 Held for 11 months	$11.2B
Riverpoint Wealth Management Holdings, LLC RIA/Wealth	Timothy Patrick Mcgrath Managing Partner	0.30% $1.3M	0.15% 50.4K shares	Q2 2024 Held for 1y 5m	$455.0M

Hedge Fund Spotlight

Discover hedge funds investing in THR

Intrinsic Edge Capital Management LLC

Hedge Fund • Multi-Strategy

Portfolio ManagerMark David Coe

Portfolio Value: $658.6M
Positions: 94
Last Reported: Q3 2025

Sector Allocation

Position in Thermon Group Holdings

Market Value: $3.2M
Shares Held: 120.0K
Portfolio Weight: 0.49%
Owned Since: 2025-Q3

Top Holding	Sector	Market Value	Weight
1 Celestica CLS	Hardware, Equipment & Parts Technology	$31.5M	4.78%
2 Corning GLW	Hardware, Equipment & Parts Technology	$20.2M	3.06%
3 Powell Industries POWL	Electrical Equipment & Parts Industrials	$20.0M	3.04%