(OMER) Stock Institutional Trading Activity


(OMER) 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-38,200344,500$1,412,450
Q2 2025Renaissance Technologies LLCBuy319,900382,700$1,148,100
Q3 2023Renaissance Technologies LLCSell-477,60062,800$183
Q2 2022Renaissance Technologies LLCBuy246,800540,400$1,486
Q1 2022Renaissance Technologies LLCBuy214,200293,600$1,765
Q4 2021Renaissance Technologies LLCSell-117,63579,400$511
Q2 2021Renaissance Technologies LLCBuy129,800197,035$2,924
Q4 2018Renaissance Technologies LLCBuy54,64267,235$749
Q3 2015Renaissance Technologies LLCSell-123,71412,593$138
Q2 2015Renaissance Technologies LLCBuy71,872136,307$2,452
Q1 2015Renaissance Technologies LLCSell-17,84664,435$1,420
Q2 2013Renaissance Technologies LLCBuy82,28182,281$415

Frequently asked questions about OMER activity

  • Which institutional owners are buying OMER?

    Institutional owners buying OMER 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 OMER activity?

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

  • Is institutional interest in OMER increasing?

    Institutional interest in OMER 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.