Thermon Group Holdings
THR · NYSE
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Who owns THR
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 2.2% of THR’s shares.
- Thames (Bruce A)1.1%
- Nuveen LLC0.2%
- Cerovski (Thomas N.)0.2%
- Vontobel Asset Management, Inc.0.1%
- Next 6 largest institutions0.5%
- All other shareholders97.8%
| Holder | Shares | % of shares |
|---|---|---|
| Thames (Bruce A) | 371.85K | 1.13% |
| Nuveen LLC | 74.25K | 0.23% |
| Cerovski (Thomas N.) | 58.05K | 0.18% |
| Vontobel Asset Management, Inc. | 48.60K | 0.15% |
| Comerica, Inc. | 34.03K | 0.10% |
| CA Indosuez Wealth (Group) | 31.00K | 0.09% |
| Acuitas Investments LLC | 30.77K | 0.09% |
| Kuahara (Roberto) | 29.31K | 0.09% |
| UBS Fund Management (Switzerland) AG | 27.08K | 0.08% |
| Vaughan Nelson Investment Management, L.P. | 12.69K | 0.04% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Kempen (Lux) Global Small-cap Fund | 334.01K | 1.01% |
| DFA U.S. Targeted Value Portfolio | 281.16K | 0.85% |
| Aon Hewitt Demo Small Cap Value Fund | 195.93K | 0.59% |
| DFA US Small Cap Value Portfolio | 177.68K | 0.54% |
| DWS Small Cap Core Fund | 175.51K | 0.53% |
Insider trades
Form 4 filings by officers, directors and large holders
Insiders made no open-market buys or sales of THR in the last 6 months.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Thames Bruce | Other | 32.47K | — |
| Thames Bruce | Other | 468.60K | — |
| Thames Bruce | Award | 78.31K | — |
| Ryan Tarkington | Other | 68.53K | — |
| Ryan Tarkington | Award | 15.11K | — |
| Strzelecki Angela | Other | 13.64K | — |
| Lucas Thomas Gregory | Other | 19.28K | — |
| Lucas Thomas Gregory | Award | 6.98K | — |
| Roberto Kuahara | Other | 59.81K | — |
| Roberto Kuahara | Award | 16.27K | — |
Congressional trades
Disclosed by members of Congress over the last 12 months
| Member | Type | Amount | Traded |
|---|---|---|---|
| Gil CisnerosHouse | Sale | $1K–$15K | Mar 2, 2026 |
Short interest
Settled May 29, 2026
- Shares short
- 968.81K
- Days to cover
- 1.11
- % of shares outstanding
- 2.94%
- Average daily volume
- 876.51K
- Change since last report
- +45.9%
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