(RGEN) Stock Institutional Trading Activity


(RGEN) 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, Polen Capital Management, and Parnassus Endeavor Fund. 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 2017Renaissance Technologies LLCSell-112,30047,200$1,712
Q3 2017Renaissance Technologies LLCSell-139,900159,500$6,112
Q2 2017Renaissance Technologies LLCSell-329,000299,400$12,407
Q1 2017Renaissance Technologies LLCSell-263,200628,400$22,120
Q4 2016Renaissance Technologies LLCSell-186,100891,600$27,479
Q3 2016Renaissance Technologies LLCSell-47,1041,077,700$32,536
Q2 2016Renaissance Technologies LLCBuy142,4001,124,804$30,775
Q1 2016Renaissance Technologies LLCBuy200,300982,404$26,348
Q4 2015Renaissance Technologies LLCSell-92,686782,104$22,126
Q3 2015Renaissance Technologies LLCSell-75,314874,790$24,363
Q2 2015Renaissance Technologies LLCBuy89,939950,104$39,211
Q1 2015Renaissance Technologies LLCBuy165,861860,165$26,115
Q4 2014Renaissance Technologies LLCSell-161,200694,304$13,747
Q3 2014Renaissance Technologies LLCBuy148,304855,504$17,033
Q2 2014Renaissance Technologies LLCBuy241,207707,200$16,117
Q1 2014Renaissance Technologies LLCSell-97,407465,993$5,993
Q4 2013Renaissance Technologies LLCBuy214,300563,400$7,685
Q3 2013Renaissance Technologies LLCBuy56,900349,100$3,872
Q2 2013Renaissance Technologies LLCBuy292,200292,200$2,408

Frequently asked questions about RGEN activity

  • Which institutional owners are buying RGEN?

    Institutional owners buying RGEN 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 RGEN activity?

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

  • Is institutional interest in RGEN increasing?

    Institutional interest in RGEN 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.