KEROS THERAPEUTICS INC (KROS) Stock Institutional Trading Activity


KEROS THERAPEUTICS INC (KROS) 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. 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 LLCBuy436,986591,686$12,046,727
Q3 2025Renaissance Technologies LLCBuy8,100154,700$2,447,354
Q2 2025Renaissance Technologies LLCBuy132,300146,600$1,957,110
Q2 2024Renaissance Technologies LLCSell-29,40014,300$653,510
Q3 2023Renaissance Technologies LLCSell-24,70043,700$1,393
Q2 2023Renaissance Technologies LLCSell-52,70068,400$2,748
Q1 2023Renaissance Technologies LLCBuy29,200121,100$5,171
Q4 2022Renaissance Technologies LLCSell-5,30091,900$4,413
Q3 2022Renaissance Technologies LLCSell-44,50097,200$3,657
Q2 2022Renaissance Technologies LLCBuy136,400141,700$3,915
Q1 2022Renaissance Technologies LLCSell-19,2725,300$288
Q3 2021Renaissance Technologies LLCBuy14,47224,572$972
Q4 2020Renaissance Technologies LLCSell-7,60010,100$712
Q3 2020Renaissance Technologies LLCBuy11,40017,700$683
Q2 2020Renaissance Technologies LLCBuy6,3006,300$236

Frequently asked questions about KROS activity

  • Which institutional owners are buying KROS?

    Institutional owners buying KROS 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 KROS activity?

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

  • Is institutional interest in KROS increasing?

    Institutional interest in KROS 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.