REPLIGEN CORP (RGEN) Institutional Ownership Changes & 13F Activity

REPLIGEN CORP (RGEN). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Price T Rowe Associates Inc, Ameriprise Financial Inc, Invesco Ltd., Citadel Advisors Llc, and Holocene Advisors, Lp.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Anchor Investment Management, LlcBuy+55$682.00Q2 2026Sep 15, 2026
Manufacturers Life Insurance Company, TheSell-11,768-23.6%38,172$5.21MQ2 2026Sep 09, 2026
Parkside Financial Bank & TrustBuy+33+3.0%1,132$154.45KQ2 2026Sep 04, 2026
Citadel Advisors LlcSell-722,872-65.8%376,309$51.34MQ2 2026Sep 02, 2026
Allianz Asset Management GmbhBuy+2,000+70.2%4,851$661.87KQ2 2026Sep 02, 2026
Cornerstone Financial Management LlcBuy+88$1.09KQ2 2026Aug 28, 2026
Corient Private Wealth LlcBuy+9,146+420.9%11,319$1.54MQ2 2026Aug 27, 2026
Optimize Financial IncSell-12-0.3%3,681$502.24KQ2 2026Aug 27, 2026
California State Teachers Retirement SystemSell-1,748-2.8%60,112$8.20MQ2 2026Aug 24, 2026
Assenagon Asset Management S.A.Buy+70,99570,995$9.69MQ2 2026Aug 21, 2026
Mercer Global Advisors IncBuy+2,1852,185$298.12KQ2 2026Aug 19, 2026
North Star Asset Management IncSell-6,402-7.6%77,561$10.58MQ2 2026Aug 18, 2026
United Capital Financial Advisors, LlcBuy+16,670+0.6%2,790,650$380.76MQ2 2026Aug 17, 2026
Equitable Holdings, Inc.Buy+11,40411,404$1.56MQ2 2026Aug 17, 2026
Public Employees Retirement System Of OhioBuy+2,692+5.1%55,503$7.57MQ2 2026Aug 17, 2026
Integrated Investment Consultants, LlcBuy+2,1762,176$296.89KQ2 2026Aug 17, 2026
Transamerica Financial Advisors, LlcBuy+8+133.3%14$1.91KQ2 2026Aug 17, 2026
Price T Rowe Associates IncSell-3,125,867-64.1%1,752,274$239.08MQ2 2026Aug 14, 2026
Ameriprise Financial IncBuy+1,576,1321,576,132$215.05MQ2 2026Aug 14, 2026
Invesco Ltd.Buy+1,387,2421,387,242$189.28MQ2 2026Aug 14, 2026
Holocene Advisors, LpBuy+583,302+82.3%1,292,191$176.31MQ2 2026Aug 14, 2026
Vestal Point Capital, LpSell-525,000-56.8%400,000$54.58MQ2 2026Aug 14, 2026
Maverick Capital LtdBuy+465,749+30.7%1,984,554$270.77MQ2 2026Aug 14, 2026
Point72 Asset Management, L.P.Sell-403,317-70.8%166,157$22.67MQ2 2026Aug 14, 2026
Goldman Sachs Group IncBuy+314,064+48.2%965,411$131.72MQ2 2026Aug 14, 2026
Fred Alger Management, LlcBuy+298,965+68.8%733,739$100.11MQ2 2026Aug 14, 2026
Granahan Investment Management, LlcBuy+245,318+282.1%332,271$45.34MQ2 2026Aug 14, 2026
Balyasny Asset Management L.P.Buy+230,038+183.3%355,507$48.51MQ2 2026Aug 14, 2026
Silvercrest Asset Management Group LlcBuy+205,452+241.4%290,559$39.64MQ2 2026Aug 14, 2026
Bamco IncBuy+200,120+36.5%748,466$102.12MQ2 2026Aug 14, 2026
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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 REPLIGEN CORP (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.