RGEN (RGEN) Institutional Buying Activity

Institutional investors tracked by InsiderSet increased exposure to RGEN during the quarter ended September 30, 2025 through a combination of new purchases and expanded existing positions disclosed in SEC Form 13F filings.

The largest institutional buyer of RGEN during the latest reporting period was Parnassus Endeavor Fund, which increased its reported RGEN position by approximately $87.48M based on quarter-end filing values. Several additional hedge funds and long-term asset managers also reported meaningful increases in RGEN exposure during the quarter.

Institutional buying activity can provide insight into investor conviction, sector allocation trends, and smart money positioning toward RGEN. InsiderSet tracks quarterly accumulation trends, new institutional positions, ownership increases, and estimated performance of newly disclosed holdings using SEC filing data and recent market prices.

The investors highlighted on this page collectively added approximately $105.01M in reported RGEN exposure during the latest filing period, reflecting continued institutional interest in RGEN's growth initiatives and strategic positioning.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q3 2025Renaissance Technologies LLCBuy43,100109,404$14,624,033
Q2 2025Renaissance Technologies LLCBuy24,10066,304$8,246,892
Q4 2024Polen Capital ManagementBuy5,17340,556$5,837,611
Q3 2024Polen Capital ManagementBuy20,81135,383$5,265,674
Q2 2024Renaissance Technologies LLCBuy23,29242,204$5,320,236
Q2 2024Polen Capital ManagementBuy14,57214,572$1,836,896
Q2 2024Parnassus Endeavor FundBuy108388,531$48,978,218
Q3 2023Parnassus Endeavor FundBuy550,124550,124$87,475,217
Q2 2022Renaissance Technologies LLCBuy30,900251,716$40,879
Q1 2022Renaissance Technologies LLCBuy44,100220,816$41,533
Q3 2020Renaissance Technologies LLCBuy216,304894,337$131,950
Q2 2020Renaissance Technologies LLCBuy299,300678,033$83,812
Q1 2020Renaissance Technologies LLCBuy134,401378,733$36,563
Q4 2019Renaissance Technologies LLCBuy14,028244,332$22,601
Q3 2019Renaissance Technologies LLCBuy165,704230,304$17,662
Q1 2019Renaissance Technologies LLCBuy47,900152,004$8,980
Q4 2018Renaissance Technologies LLCBuy56,904104,104$5,490
Q2 2016Renaissance Technologies LLCBuy142,4001,124,804$30,775
Q1 2016Renaissance Technologies LLCBuy200,300982,404$26,348
Q2 2015Renaissance Technologies LLCBuy89,939950,104$39,211
Q1 2015Renaissance Technologies LLCBuy165,861860,165$26,115
Q3 2014Renaissance Technologies LLCBuy148,304855,504$17,033
Q2 2014Renaissance Technologies LLCBuy241,207707,200$16,117
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.

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