Thermon Group Holdings
THR was delisted on the 29th of May, 2026.
161 hedge funds and large institutions have $886M invested in Thermon Group Holdings in 2025 Q1 according to their latest regulatory filings, with 18 funds opening new positions, 59 increasing their positions, 55 reducing their positions, and 25 closing their positions.
100% more funds holding in top 10
Funds holding in top 10: 2 → 4 (+2)
7% more repeat investments, than reductions
Existing positions increased: 59 | Existing positions reduced: 55
1.97% less ownership
Funds ownership: 96.34% → 94.38% (-2%)
4% less funds holding
Funds holding: 168 → 161 (-7)
5% less capital invested
Capital invested by funds: $934M → $886M (-$48.3M)
28% less first-time investments, than exits
New positions opened: 18 | Existing positions closed: 25
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
William Blair Investment Management
Chicago,
Illinois
|
+$7.66M |
| 2 |
Invesco
Atlanta,
Georgia
|
+$6.29M |
| 3 |
MVP
Medina Value Partners
Los Angeles,
California
|
+$5.67M |
| 4 |
Fidelity Investments
Boston,
Massachusetts
|
+$2.37M |
| 5 |
LN
Lightrock Netherlands
Utrecht,
Netherlands
|
+$2.14M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
T. Rowe Price Investment Management
Baltimore,
Maryland
|
-$22.9M |
| 2 |
VLKIM
Van Lanschot Kempen Investment Management
Amsterdam,
Netherlands
|
-$7.85M |
| 3 |
Goldman Sachs
New York
|
-$3.73M |
| 4 |
Vanguard Group
Malvern,
Pennsylvania
|
-$3.13M |
| 5 |
NSCM
New South Capital Management
Memphis,
Tennessee
|
-$2.14M |
THR Hedge Fund Activity: Q1 2025 in Review
161 of the 7,458 institutional investors tracked by Wall St. Rank reported a position in Thermon Group Holdings (THR) for Q1 2025, worth a combined $886M — down 5.2% from $934M a quarter earlier.
Sellers outnumbered buyers: 25 funds closed out of THR and 18 opened new positions — a net loss of 7 holders — while 55 trimmed existing stakes and 59 added.
The largest buyer was William Blair Investment Management, adding an estimated $7.66M. The largest seller was T. Rowe Price Investment Management, cutting an estimated $22.9M.
- 161 institutional investors held Thermon Group Holdings (THR) as of Q1 2025, down from 168 in Q4 2024.
- Funds reported $886M of Thermon Group Holdings stock for Q1 2025, down 5.2% quarter-over-quarter.
- 18 funds opened new Thermon Group Holdings positions in Q1 2025 and 25 closed out, a net change of -7 holders.
- The largest Thermon Group Holdings buyer in Q1 2025 was William Blair Investment Management, an estimated $7.66M added.
- The largest Thermon Group Holdings seller in Q1 2025 was T. Rowe Price Investment Management, an estimated $22.9M sold.
Based on aggregated 13F filings for Q1 2025.