(IMAB) Stock Institutional Trading Activity


(IMAB) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q3 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
Q3 2025Renaissance Technologies LLCSell-10063,600$240,408
Q2 2025Renaissance Technologies LLCSell-10063,700$154,154
Q3 2023Renaissance Technologies LLCSell-182,50863,800$84
Q2 2023Renaissance Technologies LLCBuy38,500246,308$736
Q1 2023Renaissance Technologies LLCBuy160,708207,808$719
Q4 2022Renaissance Technologies LLCSell-114,00047,100$197
Q3 2022Renaissance Technologies LLCBuy23,700161,100$646
Q1 2022Renaissance Technologies LLCSell-87,400137,400$2,231
Q4 2021Renaissance Technologies LLCBuy4,300224,800$10,653
Q3 2021Renaissance Technologies LLCBuy44,500220,500$15,984
Q2 2021Renaissance Technologies LLCBuy71,900176,000$14,775
Q1 2021Renaissance Technologies LLCSell-36,300104,100$5,046
Q4 2020Renaissance Technologies LLCBuy30,400140,400$6,620
Q3 2020Renaissance Technologies LLCBuy86,500110,000$5,173
Q2 2020Renaissance Technologies LLCBuy23,50023,500$703

Frequently asked questions about IMAB activity

  • Which institutional owners are buying IMAB?

    Institutional owners buying IMAB 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 IMAB activity?

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

  • Is institutional interest in IMAB increasing?

    Institutional interest in IMAB 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.