Thermon Group Holdings, Inc.
US ˙ NYSE ˙ US88362T1034
DIESES SYMBOL IST NICHT MEHR AKTIV

SecurityTHR / Thermon Group Holdings, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership54,695 shares
Latest Disclosed Value $ 2,032,467
Sei Investments Co reports 195.76% increase in ownership of THR / Thermon Group Holdings, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 54,695 shares of Thermon Group Holdings, Inc. (US:THR) valued at $2,032,466 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 18,493 shares of Thermon Group Holdings, Inc.. This represents a change in shares of 195.76% during the quarter. The current value of the position is $0 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-02-13 2025-12-31 13F THERMON GROUP HLDGS COM 88362T103 54,695 36,202 195.76 2,032 311.34 0.0020
2025-11-13 2025-09-30 13F THERMON GROUP HLDGS COM 88362T103 18,493 1,723 10.27 494 5.11 0.0005
2025-08-14 2025-06-30 13F THERMON GROUP HLDGS COM 88362T103 16,770 -154 -0.91 471 -0.21 0.0005
2025-05-14 2025-03-31 13F/A-1 THERMON GROUP HLDGS COM 88362T103 16,924 37 0.22 471 -2.89 0.0006
2025-05-13 2025-03-31 13F THERMON GROUP HLDGS COM 88362T103 16,924 37 486 0.0005
2025-02-11 2024-12-31 13F THERMON GROUP HLDGS COM 88362T103 16,887 1,098 6.95 486 2.97 0.0006
2024-11-12 2024-09-30 13F THERMON GROUP HLDGS COM 88362T103 15,789 328 2.12 471 -0.84 0.0006
2024-08-13 2024-06-30 13F THERMON GROUP HLDGS COM 88362T103 15,461 -2,520 -14.01 476 -19.22 0.0007
2024-05-07 2024-03-31 13F THERMON GROUP HLDGS COM 88362T103 17,981 -5,251 -22.60 588 -22.22 0.0009
2024-02-14 2023-12-31 13F THERMON GROUP HLDGS COM 88362T103 23,232 5,617 31.89 757 56.52 0.0012
2023-11-14 2023-09-30 13F THERMON GROUP HLDGS COM 88362T103 17,615 -6,633 -27.35 484 -25.12 0.0009
2023-08-11 2023-06-30 13F THERMON GROUP HLDGS COM 88362T103 24,248 -15,128 -38.42 645 -34.25 0.0011
2023-05-12 2023-03-31 13F THERMON GROUP HLDGS COM 88362T103 39,376 20,107 104.35 981 154.15 0.0018
2023-02-10 2022-12-31 13F THERMON GROUP HLDGS COM 88362T103 19,269 -6,761 -25.97 387 -3.74 0.0009
2022-11-14 2022-09-30 13F THERMON GROUP HLDGS COM 88362T103 26,030 3,572 15.91 401 26.90 0.0009
2022-08-15 2022-06-30 13F THERMON GROUP HLDGS COM 88362T103 22,458 86 0.38 316 -12.95 0.0007
2022-05-13 2022-03-31 13F THERMON GROUP HLDGS COM 88362T103 22,372 -4,600 -17.05 363 -20.57 0.0007
2022-02-14 2021-12-31 13F THERMON GROUP HLDGS COM 88362T103 26,972 453 1.71 457 -0.44 0.0009
2021-11-12 2021-09-30 13F THERMON GROUP HLDGS COM 88362T103 26,519 -5,200 -16.39 459 -15.00 0.0010
2021-08-06 2021-06-30 13F THERMON GROUP HLDGS COM 88362T103 31,719 2,700 9.30 540 -4.59 0.0012
2021-05-12 2021-03-31 13F THERMON GROUP HLDGS COM 88362T103 29,019 0 0.00 566 24.67 0.0014
2021-02-08 2020-12-31 13F THERMON GROUP HLDGS COM 88362T103 29,019 5,000 20.82 454 68.15 0.0012
2020-12-04 2020-09-30 13F/A-1 THERMON GROUP HLDGS COM 88362T103 24,019 1,800 8.10 270 -16.67 0.0008
2020-11-06 2020-09-30 13F THERMON GROUP HLDGS COM 88362T103 24,019 1,800 270 650.1000
2020-08-17 2020-06-30 13F/A-1 THERMON GROUP HLDGS COM 88362T103 22,219 9,400 73.33 324 67.88 0.0010
2020-08-11 2020-06-30 13F THERMON GROUP HLDGS COM 88362T103 12,819 0 344 933.1183
2020-05-14 2020-03-31 13F THERMON GROUP HLDGS COM 88362T103 12,819 0 0.00 193 -43.90 0.0007
2020-02-06 2019-12-31 13F THERMON GROUP HLDGS COM 88362T103 12,819 12,819 344 0.0010
2019-08-14 2019-06-30 13F THERMON GROUP HLDGS COM 88362T103 0 -4,619 -100.00 0 -100.00
2019-05-15 2019-03-31 13F THERMON GROUP HLDGS COM 88362T103 4,619 4,619 113 0.0004
2018-08-03 2018-06-30 13F THERMON GROUP HLDGS COM 88362T103 0 -8,512 -100.00 0 -100.00
2018-05-11 2018-03-31 13F THERMON GROUP HLDGS COM 88362T103 8,512 -6,921 -44.85 191 -47.67 0.0007
2018-02-08 2017-12-31 13F THERMON GROUP HLDGS COM 88362T103 15,433 -17,623 -53.31 365 -38.66 0.0013
2017-11-06 2017-09-30 13F THERMON GROUP HLDGS COM 88362T103 33,056 15,206 85.19 595 73.98 0.0021
2017-07-31 2017-06-30 13F THERMON GROUP HLDGS COM 88362T103 17,850 17,850 342 0.0014
2016-05-10 2016-03-31 13F/A-1 DIREXION SHS ETF TR COM 88362T103 0 0 0 0.0000
2016-02-03 2015-12-31 13F DIREXION SHS ETF TR COM 88362T103 0 -5,406 -100.00 0 -100.00
2015-11-02 2015-09-30 13F/A-1 THERMON GROUP HLDGS COM 88362T103 5,406 2,244 70.97 111 46.05 0.0010
2015-10-30 2015-09-30 13F DIREXION SHS ETF TR COM 88362T103 5,406 111
2015-08-07 2015-06-30 13F/A-1 THERMON GROUP HLDGS COM 88362T103 3,162 3,162 76 0.0007
2015-08-04 2015-06-30 13F THERMON GROUP HLDGS COM 88362T103 3,162 3,162 76 0.0007
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.