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THR

Thermon Group Holdings, Inc.
$61.14 -5.67 (-8.49%) At close · May 29
Market Cap
$2.01B
Shares
32,939,694

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 214
Total Value: $1,590,867,516
Total Shares: 31,564,834
Showing 1–100 of 218 holdings by value · page 1 of 3

Institutional Ownership Trend

25 quarters

Superinvestors Holding THR

All superinvestors →
George Soros $22,583,635

Holder Concentration

Across 214 13F filers · Δ vs Dec 31, 2025
Top Holder
9.4%
Jun 2023 → Mar 2026 · range 9.3% – 13.7%
+0.1 pts
Top 5
30.5%
Jun 2023 → Mar 2026 · range 30.5% – 45.5%
−4.4 pts
Top 10
43.5%
Jun 2023 → Mar 2026 · range 43.5% – 63.7%
−6.1 pts
HHI
312
Jun 2023 → Mar 2026 · range 312 – 563
Broadly held−50

Quarterly Activity

vs Dec 31, 2025
New
63
Increased
57
Decreased
73
Sold Out
43
Unchanged
21
Holder count: +20
Institutional value: +29.7%
Shares held: -4.4%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mega CITIGROUP INC +566,278 577,926
Mega FMR LLC +552,961 2,970,723
Large Balyasny Asset Management L.P. +435,969 450,549
Large Qube Research & Technologies Ltd +383,336 508,956
Mega TWO SIGMA INVESTMENTS, LP +268,237 356,278

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mega MORGAN STANLEY −1,010,300 165,468
Large GW&K Investment Management, LLC −674,739 952,518
Large BROWN ADVISORY INC −448,814 7,603
Large HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC −371,333 66,219
Large WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC −239,912 647,539

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 1,387,057 $69,907,672
Mid Magnetar Financial LLC 757,996 $38,202,998
Mid ALPINE ASSOCIATES MANAGEMENT INC. 485,882 $24,488,452
Mid SOROS FUND MANAGEMENT LLC 448,088 $22,583,635
Mid AQR Arbitrage LLC 416,851 $21,009,290

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 3,069,937 $114,078,857
Mega WELLINGTON MANAGEMENT GROUP LLP 731,373 $27,177,820
Small LONE PEAK GLOBAL INVESTORS LLC 430,230 $15,987,346
Mid HEARTLAND ADVISORS INC 255,533 $9,495,606
Small Lightrock Netherlands B.V. 248,075 $9,218,467
Filter: New 63 Increased 57 Reduced 73 Sold out 43 Unchanged 21
Showing 100 of 218
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mega FMR LLC $149,724,438 9.41% 2,970,723
Mega BlackRock, Inc. $130,442,705 8.20% 2,588,149
Mega DIMENSIONAL FUND ADVISORS LP $87,197,039 5.48% 1,730,100
Mega VANGUARD CAPITAL MANAGEMENT LLC $69,907,672 4.39% 1,387,057
Small Medina Value Partners, LLC $48,702,477 3.06% 966,319
Large GW&K Investment Management, LLC $48,006,907 3.02% 952,518
Mega GEODE CAPITAL MANAGEMENT, LLC $41,958,806 2.64% 832,516
Large WESTWOOD HOLDINGS GROUP INC $39,451,255 2.48% 782,763
Mega STATE STREET CORP $38,935,461 2.45% 772,529
Mid Magnetar Financial LLC $38,202,998 2.40% 757,996
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $34,256,124 2.15% 679,685
Large WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC $32,635,965 2.05% 647,539
Mid Harvey Partners, LLC $32,595,091 2.05% 646,728
Mid NEEDHAM INVESTMENT MANAGEMENT LLC $31,878,000 2.00% 632,500
Mega CITIGROUP INC $29,127,469 1.83% 577,926
Mega AMERIPRISE FINANCIAL INC $28,711,468 1.80% 569,672
Large VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. $26,030,138 1.64% 516,471
Large Qube Research & Technologies Ltd $25,651,382 1.61% 508,956
Mega GOLDMAN SACHS GROUP INC $24,538,751 1.54% 486,880
Mid ALPINE ASSOCIATES MANAGEMENT INC. $24,488,452 1.54% 485,882
Large Swedbank AB Bank $23,688,000 1.49% 470,000
Mid NEW SOUTH CAPITAL MANAGEMENT INC $23,102,704 1.45% 458,387
Large Balyasny Asset Management L.P. $22,707,669 1.43% 450,549
Mid SOROS FUND MANAGEMENT LLC $22,583,635 1.42% 448,088
Mega Nuveen, LLC $21,580,221 1.36% 428,179
Mid AQR Arbitrage LLC $21,009,290 1.32% 416,851
Mid KENNEDY CAPITAL MANAGEMENT LLC $18,586,159 1.17% 368,773
Mega TWO SIGMA INVESTMENTS, LP $17,956,411 1.13% 356,278
Large Assenagon Asset Management S.A. $17,424,842 1.10% 345,731
Mega UBS Group AG $16,962,169 1.07% 336,551
Mega DEUTSCHE BANK AG\ Bank $16,110,963 1.01% 319,662
Mega NORTHERN TRUST CORP Bank $15,797,676 0.99% 313,446
Large First Eagle Investment Management, LLC $15,390,798 0.97% 305,373
Mega Invesco Ltd. $14,859,279 0.93% 294,827
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $13,573,425 0.85% 269,314
Mega ALLIANCEBERNSTEIN L.P. $12,608,416 0.79% 250,167
Mega JANUS HENDERSON GROUP PLC $12,270,937 0.77% 243,471
Small Meros Investment Management, LP $12,169,735 0.76% 241,463
Mega JPMORGAN CHASE & CO $11,833,566 0.74% 234,793
Mega VANGUARD FIDUCIARY TRUST CO Bank $10,758,031 0.68% 213,453
Mega MILLENNIUM MANAGEMENT LLC $10,710,252 0.67% 212,505
Mega JANE STREET GROUP, LLC $10,361,282 0.65% 205,581
Mega PRICE T ROWE ASSOCIATES INC /MD/ $9,854,509 0.62% 195,526
Large SILVERCREST ASSET MANAGEMENT GROUP LLC $9,463,608 0.59% 187,770
Large PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO Pension $8,537,155 0.54% 169,388
Mega MORGAN STANLEY $8,339,584 0.52% 165,468
Large Russell Investments Group, Ltd. $7,900,397 0.50% 156,754
Mid OBERWEIS ASSET MANAGEMENT INC/ $7,796,880 0.49% 154,700
Mega BANK OF AMERICA CORP /DE/ Bank $7,735,945 0.49% 153,491
Mid RBF Capital, LLC $7,560,000 0.48% 150,000
Large LAZARD ASSET MANAGEMENT LLC $7,455,672 0.47% 147,930
Large Allspring Global Investments Holdings, LLC $6,341,580 0.40% 125,825
Mid Alberta Investment Management Corp $5,774,176 0.36% 114,567
Mid Atom Investors LP $5,598,280 0.35% 111,077
Small INTRINSIC EDGE CAPITAL MANAGEMENT LLC $5,544,000 0.35% 110,000
Mega Bank of New York Mellon Corp Bank $5,520,511 0.35% 109,534
Small De Lisle Partners LLP $5,251,377 0.33% 104,194
Large DIAMOND HILL CAPITAL MANAGEMENT INC $5,050,029 0.32% 100,199
Large Hudson Bay Capital Management LP $5,040,000 0.32% 100,000
Large HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Pension $4,746,672 0.30% 94,180
Micro 1060 Capital, LLC $4,517,100 0.28% 89,625
Mega AMERICAN CENTURY COMPANIES INC $3,974,695 0.25% 78,863
Small Hirtle & Co., LLC $3,780,000 0.24% 75,000
Large HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC $3,337,437 0.21% 66,219
Mega Swiss National Bank Bank $3,286,080 0.21% 65,200
Small Informed Momentum Co LLC $3,141,331 0.20% 62,328
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $2,968,255 0.19% 58,894
Small Oliver Luxxe Assets LLC $2,925,770 0.18% 58,051
Large TUDOR INVESTMENT CORP ET AL $2,914,783 0.18% 57,833
Mid RICE HALL JAMES & ASSOCIATES, LLC $2,875,219 0.18% 57,048
Mid MARTINGALE ASSET MANAGEMENT L P $2,757,333 0.17% 54,709
Micro Riverpoint Wealth Management Holdings, LLC $2,626,243 0.17% 52,108
Mega CITADEL ADVISORS LLC $2,366,532 0.15% 46,955
Small Kintayl Capital LP $2,236,852 0.14% 44,382
Mega CITADEL ADVISORS LLC $2,121,840 0.13% 42,100
Large SEI INVESTMENTS CO $2,082,326 0.13% 41,316
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $2,051,330 0.13% 40,701
Mega WELLS FARGO & COMPANY/MN $2,024,416 0.13% 40,167
Mid New York Life Investment Management LLC $1,975,932 0.12% 39,205
Mega RHUMBLINE ADVISERS $1,956,729 0.12% 38,824
Mega PRINCIPAL FINANCIAL GROUP INC $1,931,377 0.12% 38,321
Small Yakira Capital Management, Inc. $1,920,038 0.12% 38,096
Mid Polar Asset Management Partners Inc. $1,914,544 0.12% 37,987
Large STIFEL FINANCIAL CORP $1,734,565 0.11% 34,416
Mid Sagefield Capital LP $1,706,896 0.11% 33,867
Small WATER ISLAND CAPITAL LLC $1,662,544 0.10% 32,987
Mega VICTORY CAPITAL MANAGEMENT INC $1,648,080 0.10% 32,700
Micro Versor Investments LP $1,616,529 0.10% 32,074
Large CREDIT AGRICOLE S A $1,562,400 0.10% 31,000
Micro Chicago Capital Management, LLC $1,515,477 0.10% 30,069
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,451,923 0.09% 28,808
Mega Legal & General Group Plc $1,378,490 0.09% 27,351
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,355,760 0.09% 26,900
Mega RAYMOND JAMES FINANCIAL INC $1,327,283 0.08% 26,335
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,310,400 0.08% 26,000
Mid Aquatic Capital Management LLC $1,236,916 0.08% 24,542
Mega BARCLAYS PLC $1,167,918 0.07% 23,173
Mid Y-Intercept (Hong Kong) Ltd $1,150,632 0.07% 22,830
Large Cerity Partners LLC $1,143,222 0.07% 22,683
Mega VANGUARD ASSET MANAGEMENT, Ltd $1,125,734 0.07% 22,336
Key facts CIK 1489096 CUSIP 88362T103 Visit website Investor relations

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