DOSSIER · 13F Holders · Q1 2026Technology · Electrical Industrial Apparatus
THR

THERMON GROUP HLDGS INC

203 institutions still hold THERMON GROUP HLDGS INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 88362T103·Electrical Industrial Apparatus·203 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$1.0B
visible holders
Holders
203
filers reporting
Concentration
14.94%
FMR LLC #1
top holder share
AI Holders Summary · Q1 2026

203 institutions reported THR in Q1 2026. FMR LLC leads at 14.9% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
FMR LLC
CIK 0000315066
$150M3.0M0.01%Q1 2026
02
BlackRock, Inc.
CIK 0002012383
$130M2.6M0.00%Q1 2026
03
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$87M1.7M0.02%Q1 2026
04
Vanguard Portfolio Management
CIK 0002100121· Index
$71M1.4M0.00%Q1 2026
05
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$70M1.4M0.00%Q1 2026
06
Medina Value Partners, LLC
CIK 0001843543
$49M966K10.20%Q1 2026
07
GW&K Investment Management, LLC
CIK 0001082917
$48M953K0.42%Q1 2026
08
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$42M833K0.00%Q1 2026
09
WESTWOOD HOLDINGS GROUP INC
CIK 0001165002
$39M783K0.29%Q1 2026
10
STATE STREET CORP
CIK 0000093751
$39M773K0.00%Q1 2026
11
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$34M680K0.02%Q1 2026
12
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
CIK 0001644956
$33M648K0.11%Q1 2026
13
CITIGROUP INC
CIK 0000831001
$29M578K0.01%Q1 2026
14
AMERIPRISE FINANCIAL INC
CIK 0000820027
$29M570K0.01%Q1 2026
15
Harvey Partners, LLC
CIK 0001406484
$29M772K2.54%Q4 2025
16
VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V.
CIK 0001367401
$26M516K0.23%Q1 2026
17
Qube Research & Technologies Ltd
CIK 0001729829
$26M509K0.03%Q1 2026
18
GOLDMAN SACHS GROUP INC
CIK 0000886982
$25M487K0.00%Q1 2026
19
ALPINE ASSOCIATES MANAGEMENT INC.
CIK 0001396835
$24M486K1.44%Q1 2026
20
NEW SOUTH CAPITAL MANAGEMENT INC
CIK 0001044797
$23M458K1.11%Q1 2026
Page 1 of 11
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Insiders at THERMON GROUP HLDGS INC
Thames BruceBuntin DavidClarke John UCerovski Thomas NFix Roger LGeorge Marcus JDalgetty LindaHarris-Peterson Candace