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

SecurityTHR / Thermon Group Holdings, Inc.
InstitutionFmr Llc
Latest Disclosed Ownership2,970,723 shares
Ownership 9.00%
Fmr Llc ownership in THR / Thermon Group Holdings, Inc.

2026-05-06 - Fmr Llc has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 2,970,723 shares of Thermon Group Holdings, Inc. (US:THR). This represents 9.0 percent ownership of the company. In their previous filing dated 2025-02-12 , Fmr Llc had reported owning 2,319,058 shares, indicating an increase of 28.10 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2026-05-06 2026-05-06 13G/A 2,319,058 2,970,723 28.10 9.00 30.43
2025-02-12 2025-02-12 13G/A 1,979,720 2,319,058 17.14 6.90 17.45
2024-02-09 2024-02-09 13G 1,979,720 5.88

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-15 2026-03-31 13F THERMON GROUP HLDGS COM 88362T103 2,970,723 552,961 22.87 149,724 66.65 0.0016
2026-02-17 2025-12-31 13F THERMON GROUP HLDGS COM 88362T103 2,417,762 -5,771 -0.24 89,844 38.74 0.0046
2025-11-13 2025-09-30 13F THERMON GROUP HLDGS COM 88362T103 2,423,533 1,193 0.05 64,757 -4.80 0.0034
2025-08-14 2025-06-30 13F THERMON GROUP HLDGS COM 88362T103 2,422,340 21,425 0.89 68,019 1.73 0.0038
2025-05-12 2025-03-31 13F THERMON GROUP HLDGS COM 88362T103 2,400,915 81,857 3.53 66,865 0.22 0.0043
2025-02-13 2024-12-31 13F THERMON GROUP HLDGS COM 88362T103 2,319,058 132,778 6.07 66,719 2.27 0.0040
2024-11-13 2024-09-30 13F THERMON GROUP HLDGS COM 88362T103 2,186,280 198,642 9.99 65,239 6.70 0.0040
2024-08-13 2024-06-30 13F THERMON GROUP HLDGS COM 88362T103 1,987,638 -14,908 -0.74 61,140 -6.69 0.0039
2024-05-13 2024-03-31 13F THERMON GROUP HLDGS COM 88362T103 2,002,546 22,826 1.15 65,523 1.62 0.0044
2024-02-13 2023-12-31 13F THERMON GROUP HLDGS COM 88362T103 1,979,720 138,200 7.50 64,479 27.46 0.0050
2023-11-13 2023-09-30 13F THERMON GROUP HLDGS COM 88362T103 1,841,520 916,248 99.02 50,587 105.53 0.0044
2023-08-11 2023-06-30 13F THERMON GROUP HLDGS COM 88362T103 925,272 51,350 5.88 24,612 13.01 0.0021
2023-08-11 2023-03-31 13F/A-1 THERMON GROUP HLDGS COM 88362T103 873,922 412,260 89.30 21,778 134.93 0.0020
2023-05-11 2023-03-31 13F THERMON GROUP HLDGS COM 88362T103 873,922 412,260 21,778 0.0004
2023-02-13 2022-12-31 13F THERMON GROUP HLDGS COM 88362T103 461,662 98 0.02 9,270 30.32 0.0009
2022-11-10 2022-09-30 13F THERMON GROUP HLDGS COM 88362T103 461,564 260 0.06 7,113 9.75 0.0007
2022-08-12 2022-06-30 13F THERMON GROUP HLDGS COM 88362T103 461,304 -187 -0.04 6,481 -13.31 0.0006
2022-05-13 2022-03-31 13F THERMON GROUP HLDGS COM 88362T103 461,491 48,890 11.85 7,476 7.03 0.0006
2022-02-14 2021-12-31 13F THERMON GROUP HLDGS COM 88362T103 412,601 25,300 6.53 6,985 4.19 0.0005
2022-02-14 2021-09-30 13F/A-1 THERMON GROUP HLDGS COM 88362T103 387,301 387,301 6,704 0.0005
2021-11-15 2021-09-30 13F THERMON GROUP HLDGS COM 88362T103 387,301 387,301 6,704 0.0001
2020-11-13 2020-09-30 13F THERMON GROUP HLDGS COM 88362T103 0 -128,015 -100.00 0 -100.00
2020-08-24 2020-06-30 13F/A-1 THERMON GROUP HLDGS COM 88362T103 128,015 128,015 1,865 0.0002
2020-08-13 2020-06-30 13F THERMON GROUP HLDGS COM 88362T103 128,015 128,015 1,865 45.8176
2020-02-07 2019-12-31 13F THERMON GROUP HLDGS COM 88362T103 0 -36 -100.00 0 -100.00
2019-11-13 2019-09-30 13F THERMON GROUP HLDGS COM 88362T103 36 0 0.00 1 0.00 0.0000
2019-08-13 2019-06-30 13F THERMON GROUP HLDGS COM 88362T103 36 0 0.00 1 0.00 0.0000
2019-05-13 2019-03-31 13F THERMON GROUP HLDGS COM 88362T103 36 0 0.00 1 0.00 0.0000
2019-02-13 2018-12-31 13F THERMON GROUP HLDGS COM 88362T103 36 0 0.00 1 0.00 0.0000
2018-11-09 2018-09-30 13F THERMON GROUP HLDGS COM 88362T103 36 36 1 0.0000
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.