REPARE THERAPEUTICS INC (RPTX) Stock Institutional Trading Activity


REPARE THERAPEUTICS INC (RPTX) 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 and ARK Invest. 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
Q4 2025Renaissance Technologies LLCBuy257,200981,360$2,551,536
Q3 2025Renaissance Technologies LLCBuy201,301724,160$1,274,522
Q2 2025Renaissance Technologies LLCBuy224,198522,859$726,774
Q1 2025ARK InvestSell-875,5141,124,483$1,108,628
Q1 2025Renaissance Technologies LLCSell-48,799298,661$294,450
Q4 2024ARK InvestSell-509,7401,999,997$2,619,996
Q4 2024Renaissance Technologies LLCSell-106,240347,460$455,173
Q3 2024ARK InvestSell-120,6272,509,737$8,633,494
Q3 2024Renaissance Technologies LLCSell-5,000453,700$1,560,728
Q2 2024ARK InvestSell-73,4192,630,364$8,680,201
Q2 2024Renaissance Technologies LLCBuy107,700458,700$1,513,710
Q1 2024ARK InvestSell-117,7772,703,783$12,734,820
Q1 2024Renaissance Technologies LLCSell-4,826351,000$1,653
Q4 2023ARK InvestBuy200,6772,821,560$20,597,391
Q4 2023Renaissance Technologies LLCBuy202,926355,826$2,598
Q3 2023ARK InvestSell-7,1902,620,883$31,660,268
Q3 2023Renaissance Technologies LLCBuy7,000152,900$1,847
Q2 2023ARK InvestSell-109,2512,628,073$27,805,012
Q2 2023Renaissance Technologies LLCSell-84,100145,900$1,544
Q1 2023ARK InvestBuy309,2692,737,324$26,935,268
Q1 2023Renaissance Technologies LLCBuy66,600230,000$2,263
Q4 2022ARK InvestSell-203,9732,428,055$35,716,689
Q4 2022Renaissance Technologies LLCBuy28,279163,400$2,404
Q3 2022ARK InvestSell-147,3032,632,028$31,926
Q3 2022Renaissance Technologies LLCSell-45,779135,121$1,639
Q2 2022ARK InvestSell-95,9842,779,331$25,514
Q2 2022Renaissance Technologies LLCBuy92,800180,900$2,531
Q1 2022ARK InvestSell-105,5212,875,315$40,944
Q1 2022Renaissance Technologies LLCBuy1,40088,100$1,255
Q4 2021ARK InvestBuy14,0972,980,836$62,866

Frequently asked questions about RPTX activity

  • Which institutional owners are buying RPTX?

    Institutional owners buying RPTX 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 RPTX activity?

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

  • Is institutional interest in RPTX increasing?

    Institutional interest in RPTX 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.