THERMON GROUP HOLDINGS INC (THR) Stock Institutional Trading Activity


THERMON GROUP HOLDINGS INC (THR) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC, First Eagle U.S. Value, Vulcan Value Partners, and Parnassus Endeavor Fund. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2020Renaissance Technologies LLCSell-51,500582,400$8,777
Q4 2019Renaissance Technologies LLCSell-10,200633,900$16,989
Q3 2019Renaissance Technologies LLCBuy146,800644,100$14,801
Q2 2019Renaissance Technologies LLCBuy27,900497,300$12,756
Q1 2019Renaissance Technologies LLCBuy2,020469,400$11,505
Q4 2018Renaissance Technologies LLCSell-33,110467,380$9,478
Q3 2018Renaissance Technologies LLCSell-49,910500,490$12,903
Q1 2018Renaissance Technologies LLCBuy114,300550,400$12,334
Q4 2017Renaissance Technologies LLCBuy67,100436,100$10,322
Q3 2017Renaissance Technologies LLCBuy16,600369,000$6,638
Q3 2017Vulcan Value PartnersSell-220,9851,174,967$21,138
Q2 2017Renaissance Technologies LLCSell-71,800352,400$6,756
Q2 2017Vulcan Value PartnersSell-50,8631,395,952$26,760
Q1 2017Renaissance Technologies LLCSell-41,500424,200$8,840
Q1 2017Vulcan Value PartnersSell-88,5561,446,815$30,152
Q4 2016Renaissance Technologies LLCSell-3,700465,700$8,890
Q4 2016Vulcan Value PartnersSell-233,8821,535,371$29,310
Q3 2016Renaissance Technologies LLCBuy44,100469,400$9,271
Q3 2016Vulcan Value PartnersSell-183,3671,769,253$34,943
Q2 2016Renaissance Technologies LLCBuy30,600425,300$8,170
Q2 2016Vulcan Value PartnersSell-668,4131,952,620$37,510
Q1 2016Renaissance Technologies LLCBuy6,900394,700$6,931
Q1 2016Vulcan Value PartnersBuy164,6762,621,033$46,025
Q4 2015Renaissance Technologies LLCBuy32,300387,800$6,562
Q4 2015Vulcan Value PartnersBuy325,5902,456,357$41,562
Q3 2015Renaissance Technologies LLCBuy11,300355,500$7,306
Q3 2015Vulcan Value PartnersBuy2,130,7672,130,767$43,787
Q2 2015Renaissance Technologies LLCBuy193,600344,200$8,285
Q1 2015Renaissance Technologies LLCSell-38,100150,600$3,625
Q4 2014Renaissance Technologies LLCSell-113,600188,700$4,565

Frequently asked questions about THR activity

  • Which institutional owners are buying THR?

    Institutional owners buying THR include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in THR activity?

    "Buy" means an investor increased their reported position in THR compared to the prior reporting period. This reflects growing exposure to THERMON GROUP HOLDINGS INC (THR) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in THR increasing?

    Institutional interest in THR can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.