Thermon Group HoldingsTHR
13F holders, Q3 2025 (September 30)158holders −10
19new positions
30sold out
5famous investors
$26.68avg. 13F price*
At the end of Q3 2025, 158 institutions reported holding Thermon Group Holdings Inc. (THR) in their 13F filings, down 10 from Q2 2025. 19 opened new positions and 30 sold out. The largest holders were Vanguard Group Inc. ($84.7M), BlackRock, Inc. ($67.7M) and FMR LLC ($64.8M). 5 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- Thermon Group Holdings Inc.
- CUSIP
- 88362T103
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 19 | $11.4M |
| Exits | 30 | $20.8M |
All 13F filers, Q2 2025 → Q3 2025: 3,840,868 shares bought and 2,938,189 shares sold, net +902,679 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 158 holders
| Vanguard Group Inc. | 0.00% | Reduce -1.6% | 3,168,931 | $84.7M |
| BlackRock, Inc. | 0.00% | Reduce -3.5% | 2,535,400 | $67.7M |
| FMR LLC | 0.00% | Add +0.1% | 2,423,533 | $64.8M |
| Dimensional Fund Advisors LP | 0.01% | Add +0.0% | 1,769,214 | $47.3M |
| Westwood Holdings Group Inc. | 0.29% | Add +12.9% | 1,487,163 | $39.7M |
| GW&K Investment Management, LLC | 0.34% | Add +133.4% | 1,429,542 | $38.2M |
| T. Rowe Price Investment Management, Inc. | 0.02% | Reduce -45.9% | 1,169,523 | $31.3M |
| Van Lanschot Kempen Investment Management N.V. | 0.27% | Reduce -3.9% | 1,125,050 | $30.1M |
| Medina Value Partners, LLC | 6.16% | Add +3.5% | 987,165 | $26.4M |
| William Blair Investment Management, LLC | 0.07% | Reduce -5.7% | 980,348 | $26.2M |
| Brown Advisory Inc. | 0.03% | Reduce -20.4% | 881,566 | $23.6M |
| Wellington Management Group LLP | 0.00% | Reduce -5.0% | 856,239 | $22.9M |
| State Street Corp. | 0.00% | Add +0.3% | 782,428 | $20.9M |
| Geode Capital Management, LLC | 0.00% | Reduce -1.3% | 780,503 | $20.9M |
| Harvey Partners, LLC | 1.88% | Add +20.6% | 771,500 | $20.6M |
| Swedbank AB | 0.02% | Add +16.1% | 758,000 | $20.3M |
| Morgan Stanley | 0.00% | Add +163.7% | 719,525 | $19.2M |
| Needham Investment Management LLC | 1.16% | No change | 623,500 | $16.7M |
| New South Capital Management Inc. | 0.60% | Reduce -1.2% | 493,619 | $13.2M |
| Hotchkis & Wiley Capital Management LLC | 0.04% | Add +5.3% | 492,782 | $13.2M |
| Ameriprise Financial Inc. | 0.00% | Reduce -10.6% | 489,786 | $13.1M |
| Kennedy Capital Management LLC | 0.26% | Add +38.2% | 440,165 | $11.8M |
| Arrowstreet Capital, Limited Partnership | 0.01% | Add +51.0% | 428,646 | $11.5M |
| First Eagle Investment Management, LLC | 0.02% | Add +12.3% | 391,978 | $10.5M |
| Meros Investment Management, LP | 4.02% | Add +24.5% | 352,001 | $9.4M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -1.5% | 348,952 | $9.3M |
| Northern Trust Corp. | 0.00% | Reduce -2.5% | 326,414 | $8.7M |
| Deutsche Bank AG | 0.00% | Add +10.0% | 314,081 | $8.4M |
| UBS Group AG | 0.00% | Add +287.4% | 288,370 | $7.7M |
| JPMorgan Chase & Co. | 0.00% | Reduce -0.7% | 262,237 | $7.0M |
| Lightrock Netherlands B.V. | 1.83% | Add +24.5% | 307,075 | $7.0M |
| Heartland Advisors Inc. | 0.36% | Add +10.7% | 256,044 | $6.8M |
| Assenagon Asset Management S.A. | 0.01% | Add +103.1% | 255,694 | $6.8M |
| Goldman Sachs Group Inc. | 0.00% | Add +10.8% | 240,087 | $6.4M |
| T. Rowe Price Associates Inc. | 0.00% | Add +57.6% | 211,547 | $5.7M |
| Public Employees Retirement System of Ohio | 0.02% | Add +8.4% | 197,425 | $5.3M |
| Qube Research & Technologies Ltd | 0.01% | Add +9.7% | 178,112 | $4.8M |
| Russell Investments Group, Ltd. | 0.01% | Add +30.6% | 172,123 | $4.6M |
| RBF Capital, LLC | 0.21% | Reduce -2.7% | 170,000 | $4.5M |
| Wedge Capital Management L L P | 0.07% | Add +182.6% | 165,479 | $4.4M |
| Bank of America Corp. | 0.00% | Add +53.8% | 164,939 | $4.4M |
| Citadel Advisors | 0.00% | New | 163,947 | $4.4M |
| Two Sigma Investments, LP | 0.01% | Add +590.5% | 156,246 | $4.2M |
| Two Sigma Advisers, LP | 0.01% | Add +240.0% | 120,562 | $3.2M |
| Intrinsic Edge Capital Management LLC | 0.49% | New | 120,000 | $3.2M |
| Bank of New York Mellon Corp | 0.00% | Add +1.6% | 117,860 | $3.1M |
| Royal Bank of Canada | 0.00% | Reduce -52.1% | 117,863 | $3.1M |
| Diamond Hill Capital Management, LLC (Investment Advisor) | 0.01% | Reduce -2.9% | 96,455 | $2.6M |
| American Century Companies Inc. | 0.00% | Add +14.8% | 79,753 | $2.1M |
| D. E. Shaw & Co. | 0.00% | Add +406.8% | 70,349 | $1.9M |
| Rice Hall James & Associates, LLC | 0.10% | Reduce -32.4% | 68,851 | $1.8M |
| Nuveen, LLC | 0.00% | No change | 68,107 | $1.8M |
| Dark Forest Capital Management LP | 0.07% | Add +748.1% | 66,303 | $1.8M |
| Renaissance Technologies | 0.00% | Reduce -34.8% | 64,600 | $1.7M |
| Swiss National Bank | 0.00% | No change | 64,300 | $1.7M |
| Blair William & Co. | 0.00% | Reduce -43.6% | 60,102 | $1.6M |
| Wells Fargo & Company | 0.00% | Reduce -31.9% | 58,155 | $1.6M |
| Barclays PLC | 0.00% | Reduce -22.3% | 57,071 | $1.5M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -44.5% | 55,523 | $1.5M |
| Riverpoint Wealth Management Holdings, LLC | 0.30% | Add +1.7% | 50,360 | $1.3M |
| Invesco Ltd. | 0.00% | Reduce -6.1% | 50,078 | $1.3M |
| Rhumbline Advisers | 0.00% | Reduce -3.7% | 48,151 | $1.3M |
| Atom Investors LP | 0.09% | New | 46,843 | $1.3M |
| Victory Capital Management Inc. | 0.00% | Add +11.4% | 44,835 | $1.2M |
| Comerica Bank | 0.00% | Add +200.3% | 41,589 | $1.1M |
| Legal & General Group Plc | 0.00% | Add +2.2% | 38,133 | $1.0M |
| Verition Fund Management LLC | 0.01% | Add +57.2% | 35,707 | $954K |
| Jane Street Group, LLC | 0.00% | Reduce -68.8% | 35,682 | $953K |
| Jump Financial, LLC | 0.01% | Reduce -30.3% | 34,880 | $932K |
| Alliancebernstein L.P. | 0.00% | No change | 33,920 | $906K |
| AQR Capital Management | 0.00% | Add +17.1% | 33,786 | $903K |
| Cerity Partners LLC | 0.00% | Add +34.0% | 31,619 | $845K |
| Hennion & Walsh Asset Management, Inc. | 0.03% | Reduce -2.5% | 31,267 | $835K |
| California State Teachers Retirement System | 0.00% | Reduce -0.0% | 31,210 | $834K |
| Campbell & CO Investment Adviser LLC | 0.06% | Reduce -23.2% | 30,321 | $810K |
| D.A. Davidson & Co. | 0.01% | Add +5.6% | 29,059 | $776K |
| TD Asset Management Inc | 0.00% | Reduce -8.5% | 26,694 | $713K |
| Raymond James Financial Inc. | 0.00% | Add +0.6% | 26,232 | $701K |
| BNP Paribas Financial Markets | 0.00% | Add +697.9% | 25,821 | $690K |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | Add +231.1% | 25,764 | $688K |
| Principal Financial Group Inc. | 0.00% | Add +26.4% | 24,478 | $654K |
| North Star Investment Management Corp. | 0.04% | No change | 24,200 | $647K |
| Citigroup Inc. | 0.00% | Reduce -15.0% | 24,052 | $643K |
| Janus Henderson Group PLC | 0.00% | Add +62.3% | 23,656 | $632K |
| Numerai GP LLC | 0.08% | New | 21,092 | $564K |
| NJ State Employees Deferred Compensation Plan | 0.06% | No change | 20,000 | $534K |
| Vident Advisory, LLC | 0.01% | New | 19,925 | $532K |
| MetLife Investment Management, LLC | 0.00% | No change | 19,875 | $531K |
| EntryPoint Capital, LLC | 0.20% | Reduce -22.1% | 18,852 | $504K |
| Sei Investments Co. | 0.00% | Add +10.3% | 18,493 | $494K |
| Globeflex Capital L P | 0.07% | Reduce -24.2% | 18,095 | $483K |
| Tidal Investments LLC | 0.00% | Reduce -4.5% | 17,959 | $480K |
| Voya Investment Management LLC | 0.00% | Reduce -25.4% | 16,963 | $453K |
| Commerce Bank | 0.00% | Add +50.5% | 16,473 | $440K |
| Lone Peak Global Investors LLC | 0.07% | Add +43.0% | 16,224 | $434K |
| Teacher Retirement System of Texas | 0.00% | New | 15,507 | $414K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -16.3% | 15,275 | $408K |
| SG Americas Securities, LLC | 0.00% | New | 14,813 | $396K |
| Man Group plc | 0.00% | Add +12.3% | 14,639 | $391K |
| Boston Partners | 0.00% | Add +25.9% | 14,467 | $387K |
"% of holder's portfolio" is THR's weight in each manager's 13F, not the share of Thermon Group Holdings Inc. the manager owns.