Thermon Group Holdings
THR was delisted on the 29th of May, 2026.
158 hedge funds and large institutions have $885M invested in Thermon Group Holdings in 2025 Q3 according to their latest regulatory filings, with 21 funds opening new positions, 62 increasing their positions, 52 reducing their positions, and 30 closing their positions.
19% more repeat investments, than reductions
Existing positions increased: 62 | Existing positions reduced: 52
3.25% more ownership
Funds ownership: 97.08% → 100.34% (+3.3%)
0% more funds holding in top 10
Funds holding in top 10: 2 → 2 (0)
2% less capital invested
Capital invested by funds: $905M → $885M (-$20M)
6% less funds holding
Funds holding: 168 → 158 (-10)
30% less first-time investments, than exits
New positions opened: 21 | Existing positions closed: 30
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
GKIM
GW&K Investment Management
Boston,
Massachusetts
|
+$22M |
| 2 |
Morgan Stanley
New York
|
+$12M |
| 3 |
UBS Group
Zurich,
Switzerland
|
+$5.75M |
| 4 |
WHG
Westwood Holdings Group
Dallas,
Texas
|
+$4.57M |
| 5 |
Citadel Advisors
Miami,
Florida
|
+$4.41M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
T. Rowe Price Investment Management
Baltimore,
Maryland
|
-$26.6M |
| 2 |
Brown Advisory
Baltimore,
Maryland
|
-$6.06M |
| 3 |
CSS
Cubist Systematic Strategies
Stamford,
Connecticut
|
-$4.49M |
| 4 |
Royal Bank of Canada
Toronto,
Ontario, Canada
|
-$3.44M |
| 5 |
Millennium Management
New York
|
-$3.3M |
THR Hedge Fund Activity: Q3 2025 in Review
158 of the 7,620 institutional investors tracked by Wall St. Rank reported a position in Thermon Group Holdings (THR) for Q3 2025, worth a combined $885M — down 2.2% from $905M a quarter earlier.
Sellers outnumbered buyers: 30 funds closed out of THR and 21 opened new positions — a net loss of 9 holders — while 52 trimmed existing stakes and 62 added.
The largest buyer was GW&K Investment Management, adding an estimated $22M. The largest seller was T. Rowe Price Investment Management, cutting an estimated $26.6M.
- 158 institutional investors held Thermon Group Holdings (THR) as of Q3 2025, down from 168 in Q2 2025.
- Funds reported $885M of Thermon Group Holdings stock for Q3 2025, down 2.2% quarter-over-quarter.
- 21 funds opened new Thermon Group Holdings positions in Q3 2025 and 30 closed out, a net change of -9 holders.
- The largest Thermon Group Holdings buyer in Q3 2025 was GW&K Investment Management, an estimated $22M added.
- The largest Thermon Group Holdings seller in Q3 2025 was T. Rowe Price Investment Management, an estimated $26.6M sold.
Based on aggregated 13F filings for Q3 2025.