Thermon Group Holdings, Inc.
THRDelisted Jun 1, 2026- Industry
- Electrical Industrial Apparatus
- SEC CIK
- 0001489096
Thermon Group Holdings, Inc. was delisted on Jun 1, 2026; its insiders filed their last Form 4 on Jun 3, 2026; 217 institutions reported holding it in 13F filings for Q1 2026, worth $1.65B in total; Soros Fund Management was the only superinvestor holding it.
13F holders, Q1 2026
Institutional positions in Thermon Group Holdings, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
THR is no longer listed, so this page shows Q1 2026. 13F filings for later quarters list far fewer holders.
- Institutional holders
- 217
- +27 vs. Q4 2025
- Shares held
- 32.9M
- +3.00M (+10.1%) vs. Q4 2025
- Total value
- $1.65B
- +$542.8M (+48.9%) vs. Q4 2025
- New holders
- 67
- 56 more added
- Sold out
- 40
- 73 more reduced
3 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting THR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 3 | $4.78M |
| Q1 2026 | 217 | $1.65B |
| Q4 2025 | 193 | $1.23B |
| Q3 2025 | 158 | $885.2M |
| Q2 2025 | 169 | $905.2M |
| Q1 2025 | 160 | $868.2M |
| Q4 2024 | 169 | $933.8M |
| Q3 2024 | 151 | $948.2M |
| Q2 2024 | 155 | $980.3M |
| Q1 2024 | 146 | $1.08B |
| Q4 2023 | 159 | $1.04B |
| Q3 2023 | 150 | $878.5M |
| Q2 2023 | 153 | $839.7M |
| Q1 2023 | 155 | $793.2M |
| Q4 2022 | 134 | $629.9M |
| Q3 2022 | 120 | $488.7M |
| Q2 2022 | 108 | $449.0M |
| Q1 2022 | 113 | $508.2M |
| Q4 2021 | 107 | $529.5M |
| Q3 2021 | 95 | $545.0M |
| Q2 2021 | 94 | $536.1M |
| Q1 2021 | 98 | $616.5M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Thermon Group Holdings, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 2,970,723 | $149.7M | 0.01% | +552,961+22.9% | Added |
| BlackRock, Inc. | 2,588,149 | $130.4M | 0.00% | −93,501−3.5% | Reduced |
| Dimensional Fund Advisors LP | 1,730,100 | $87.2M | 0.02% | −4790.0% | Reduced |
| Vanguard Portfolio Management LLC | 1,404,091 | $70.8M | 0.00% | +1,404,091 | New |
| Vanguard Capital Management LLC | 1,387,057 | $69.9M | 0.00% | +1,387,057 | New |
| Medina Singh Partners, LLC | 966,319 | $48.7M | 10.20% | −77,207−7.4% | Reduced |
| GW&K Investment Management, LLC | 952,518 | $48.0M | 0.42% | −674,739−41.5% | Reduced |
| Geode Capital Management, LLC | 832,516 | $42.0M | 0.00% | +50,439+6.4% | Added |
| Westwood Holdings Group Inc. | 782,763 | $39.5M | 0.29% | −194,058−19.9% | Reduced |
| State Street Corp | 772,529 | $38.9M | 0.00% | +10,689+1.4% | Added |
| Magnetar Financial LLC | 757,996 | $38.2M | 0.39% | +757,996 | New |
| Arrowstreet Capital, Limited Partnership | 679,685 | $34.3M | 0.02% | +171,346+33.7% | Added |
| William Blair Investment Management, LLC | 647,539 | $32.6M | 0.11% | −239,912−27.0% | Reduced |
| Harvey Partners, LLC | 646,728 | $32.6M | 2.65% | −125,342−16.2% | Reduced |
| Needham Investment Management LLC | 632,500 | $31.9M | 1.63% | +12,500+2.0% | Added |
| Citigroup Inc | 577,926 | $29.1M | 0.02% | +566,278+4,861.6% | Added |
| Ameriprise Financial Inc | 569,672 | $28.7M | 0.01% | −103,663−15.4% | Reduced |
| Kempen Capital Management N.V. | 516,471 | $26.0M | 0.23% | −173,206−25.1% | Reduced |
| Qube Research & Technologies Ltd | 508,956 | $25.7M | 0.04% | +383,336+305.2% | Added |
| Goldman Sachs Group Inc | 486,880 | $24.5M | 0.00% | +245,977+102.1% | Added |
| Alpine Associates Management Inc. | 485,882 | $24.5M | 1.44% | +485,882 | New |
| Swedbank AB | 470,000 | $23.7M | 0.02% | −224,000−32.3% | Reduced |
| New South Capital Management Inc | 458,387 | $23.1M | 1.11% | −16,212−3.4% | Reduced |
| Balyasny Asset Management LLC | 450,549 | $22.7M | 0.04% | +435,969+2,990.2% | Added |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 448,088 | $22.6M | 0.31% | +448,088 | New |
| Nuveen, LLC | 428,179 | $21.6M | 0.01% | +207,526+94.1% | Added |
| CNH Partners LLC | 416,851 | $21.0M | 0.35% | +416,851 | New |
| Kennedy Capital Management, Inc. | 368,773 | $18.6M | 0.39% | −15,081−3.9% | Reduced |
| Two Sigma Investments, LP | 356,278 | $18.0M | 0.01% | +268,237+304.7% | Added |
| Assenagon Asset Management S.A. | 345,731 | $17.4M | 0.03% | +90,037+35.2% | Added |
| UBS Group AG | 336,551 | $17.0M | 0.00% | +31,481+10.3% | Added |
| Deutsche Bank AG | 319,662 | $16.1M | 0.01% | +3,525+1.1% | Added |
| Northern Trust Corp | 313,446 | $15.8M | 0.00% | −81,752−20.7% | Reduced |
| First Eagle Investment Management, LLC | 305,373 | $15.4M | 0.03% | −95,137−23.8% | Reduced |
| Invesco Ltd. | 294,827 | $14.9M | 0.00% | +21,759+8.0% | Added |
| Charles Schwab Investment Management Inc | 269,314 | $13.6M | 0.00% | −70,422−20.7% | Reduced |
| Janus Henderson Group PLC | 243,471 | $12.3M | 0.01% | −7,342−2.9% | Reduced |
| Meros Investment Management, LP | 241,463 | $12.2M | 5.27% | −98,212−28.9% | Reduced |
| JPMorgan Chase & Co | 234,793 | $11.5M | 0.00% | −102,357−30.4% | Reduced |
| Vanguard Fiduciary Trust Co | 213,453 | $10.8M | 0.00% | +213,453 | New |
| Millennium Management LLC | 212,505 | $10.7M | 0.01% | +192,677+971.7% | Added |
| Jane Street Group, LLC | 205,581 | $10.4M | 0.01% | +97,674+90.5% | Added |
| Price T Rowe Associates Inc | 195,526 | $9.86M | 0.00% | +19,044+10.8% | Added |
| Silvercrest Asset Management Group LLC | 187,770 | $9.46M | 0.07% | +187,770 | New |
| Alliancebernstein L.P. | 250,167 | $9.30M | 0.00% | +216,247+637.5% | Added |
| Public Employees Retirement System of Ohio | 169,388 | $8.54M | 0.03% | −4,046−2.3% | Reduced |
| Morgan Stanley | 165,468 | $8.34M | 0.00% | −1,010,300−85.9% | Reduced |
| Russell Investments Group, Ltd. | 156,754 | $7.90M | 0.01% | −6,105−3.7% | Reduced |
| Oberweis Asset Management Inc | 154,700 | $7.80M | 0.23% | +154,700 | New |
| Bank of America Corp | 153,491 | $7.74M | 0.00% | −70,638−31.5% | Reduced |
| RBF Capital, LLC | 150,000 | $7.56M | 0.37% | −5,000−3.2% | Reduced |
| Lazard Asset Management LLC | 147,930 | $7.46M | 0.01% | +20,548+16.1% | Added |
| Allspring Global Investments Holdings, LLC | 125,825 | $6.34M | 0.01% | +24,693+24.4% | Added |
| Alberta Investment Management Corp | 114,567 | $5.77M | 0.04% | +114,567 | New |
| Atom Investors LP | 111,077 | $5.60M | 0.40% | −23,772−17.6% | Reduced |
| Intrinsic Edge Capital Management LLC | 110,000 | $5.54M | 1.01% | −120,000−52.2% | Reduced |
| Bank of New York Mellon Corp | 109,534 | $5.52M | 0.00% | −5,262−4.6% | Reduced |
| De Lisle Partners LLP | 104,194 | $5.25M | 0.63% | +104,194 | New |
| Diamond Hill Capital Management Inc | 100,199 | $5.05M | 0.03% | −19,816−16.5% | Reduced |
| Hudson Bay Capital Management LP | 100,000 | $5.04M | 0.03% | +100,000 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 94,180 | $4.75M | 0.01% | +25,820+37.8% | Added |
| 1060 Capital, LLC | 89,625 | $4.52M | 5.49% | −35,375−28.3% | Reduced |
| American Century Companies Inc | 78,863 | $3.97M | 0.00% | +2,640+3.5% | Added |
| Hirtle Callaghan & Co LLC | 75,000 | $3.78M | 0.13% | +75,000 | New |
| Hotchkis & Wiley Capital Management LLC | 66,219 | $3.34M | 0.01% | −371,333−84.9% | Reduced |
| Swiss National Bank | 65,200 | $3.29M | 0.00% | 00.0% | Unchanged |
| EAM Investors, LLC | 62,328 | $3.14M | 0.36% | −6,339−9.2% | Reduced |
| UBS Asset Management Americas Inc | 58,894 | $2.97M | 0.00% | +1,457+2.5% | Added |
| Oliver Luxxe Assets LLC | 58,051 | $2.93M | 0.44% | +28,460+96.2% | Added |
| Tudor Investment Corp Et Al | 57,833 | $2.91M | 0.02% | +57,833 | New |
| Rice Hall James & Associates, LLC | 57,048 | $2.88M | 0.16% | 00.0% | Unchanged |
| Martingale Asset Management L P | 54,709 | $2.76M | 0.07% | +5,012+10.1% | Added |
| Riverpoint Wealth Management Holdings, LLC | 52,108 | $2.63M | 0.56% | +740+1.4% | Added |
| Citadel Advisors LLC | 46,955 | $2.37M | 0.00% | +46,955 | New |
| Kintayl Capital LP | 44,382 | $2.24M | 1.38% | +44,382 | New |
| SEI Investments Co | 41,316 | $2.08M | 0.00% | −13,379−24.5% | Reduced |
| California State Teachers Retirement System | 40,701 | $2.05M | 0.00% | +9,534+30.6% | Added |
| Wells Fargo & Company | 40,167 | $2.02M | 0.00% | −25,278−38.6% | Reduced |
| New York Life Investment Management LLC | 39,205 | $1.98M | 0.02% | +39,205 | New |
| Rhumbline Advisers | 38,824 | $1.96M | 0.00% | −1,163−2.9% | Reduced |
| Principal Financial Group Inc | 38,321 | $1.93M | 0.00% | +3,435+9.8% | Added |
| Yakira Capital Management, Inc. | 38,096 | $1.92M | 0.56% | +38,096 | New |
| Polar Asset Management Partners Inc. | 37,987 | $1.91M | 0.05% | +37,987 | New |
| Stifel Financial Corp | 34,416 | $1.73M | 0.00% | +34,416 | New |
| Sagefield Capital LP | 33,867 | $1.71M | 0.12% | +33,867 | New |
| Water Island Capital LLC | 32,987 | $1.66M | 0.22% | +32,987 | New |
| Victory Capital Management Inc | 32,700 | $1.65M | 0.00% | −7,300−18.3% | Reduced |
| Versor Investments LP | 32,074 | $1.62M | 3.96% | +32,074 | New |
| Credit Agricole S A | 31,000 | $1.56M | 0.01% | +31,000 | New |
| Susquehanna International Group, LLP | 28,808 | $1.45M | 0.00% | +10,081+53.8% | Added |
| Legal & General Group Plc | 27,351 | $1.38M | 0.00% | −6,307−18.7% | Reduced |
| Raymond James Financial Inc | 26,335 | $1.33M | 0.00% | +148+0.6% | Added |
| Aquatic Capital Management LLC | 24,542 | $1.24M | 0.04% | +24,541+2,454,100.0% | Added |
| Barclays PLC | 23,173 | $1.17M | 0.00% | −38,675−62.5% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 22,830 | $1.15M | 0.02% | +22,830 | New |
| Cerity Partners LLC | 22,683 | $1.14M | 0.00% | −57,218−71.6% | Reduced |
| Chicago Capital Management, LLC | 30,069 | $1.14M | 0.95% | +30,069 | New |
| Vanguard Asset Management, Ltd | 22,336 | $1.13M | 0.00% | +22,336 | New |
| Abc Arbitrage SA | 21,895 | $1.10M | 0.15% | +21,895 | New |
| Marshall Wace, LLP | 19,700 | $992.9K | 0.00% | +19,700 | New |