CULLINAN THERAPEUTICS INC (CGEM) Stock Institutional Trading Activity


CULLINAN THERAPEUTICS INC (CGEM) 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 Baupost Group. 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 LLCBuy102,298631,706$6,538,157
Q3 2025Renaissance Technologies LLCBuy194,883529,408$3,139,389
Q2 2025Renaissance Technologies LLCSell-28,483334,525$2,518,973
Q1 2025Renaissance Technologies LLCBuy172,500363,008$2,747,971
Q4 2024Renaissance Technologies LLCSell-91,292190,508$2,320,387
Q3 2024Renaissance Technologies LLCSell-139,908281,800$4,717,332
Q2 2024Renaissance Technologies LLCBuy100,608421,708$7,354,588
Q1 2024Renaissance Technologies LLCBuy57,012321,100$5,472
Q4 2023Renaissance Technologies LLCBuy41,388264,088$2,691
Q3 2023Renaissance Technologies LLCSell-22,900222,700$2,015
Q2 2023Renaissance Technologies LLCBuy6,400245,600$2,643
Q1 2023Renaissance Technologies LLCSell-68,500239,200$2,447
Q4 2022Renaissance Technologies LLCBuy5,505307,700$3,246
Q3 2022Renaissance Technologies LLCBuy8,595302,195$3,874
Q3 2022Baupost GroupSell-1,105,914429,646$5,508
Q2 2022Renaissance Technologies LLCBuy267,000293,600$3,764
Q4 2021Renaissance Technologies LLCBuy61826,600$410
Q4 2021Baupost GroupSell-300,0001,535,560$22,509
Q2 2021Renaissance Technologies LLCBuy25,98225,982$669
Q1 2021Baupost GroupBuy1,835,5601,835,560$71,699

Frequently asked questions about CGEM activity

  • Which institutional owners are buying CGEM?

    Institutional owners buying CGEM 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 CGEM activity?

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

  • Is institutional interest in CGEM increasing?

    Institutional interest in CGEM 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.