NASDAQ: RGEN
Repligen Corp Stock Ownership - Who owns Repligen?

Insider buying vs selling

Have Repligen Corp insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Ralf KuriyelSenior VP RD2026-03-0442$125.84
$5.29kSell
James BylundChief Operating Officer2026-03-0462$125.84
$7.80kSell
Anthony HuntDirector2026-03-029,897$124.97
$1.24MSell
Ralf KuriyelSenior VP RD2026-03-02923$124.97
$115.35kSell
James BylundChief Operating Officer2026-03-022,433$124.97
$304.05kSell
Brian Robb DouglassCHIEF PRODUCT OFFICER2026-03-02221$124.97
$27.62kSell
Jason K. GarlandCFO2026-03-02715$124.97
$89.35kSell
Olivier LoeillotChief Executive Officer2026-03-021,610$124.97
$201.20kSell
Jason K. GarlandCFO2026-02-27327$128.73
$42.09kSell
James BylundChief Operating Officer2026-02-271,478$128.73
$190.26kSell

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Net Insider Buy/Sell (L12M) Ownership

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RGEN Shareholders

What type of owners hold Repligen Corp stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Bvf Partners L P19.63%11,060,200$1.27BInsider
Roy T. Eddleman13.64%7,685,810$879.41MInsider
Blackrock Inc11.75%6,619,271$757.38MInstitution
Vanguard Group Inc8.87%4,993,945$571.41MInstitution
Price T Rowe Associates Inc8.16%4,599,061$526.22MInstitution
Fmr LLC5.09%2,867,846$328.14MInstitution
United Capital Financial Advisors LLC4.92%2,770,862$317.04MInstitution
State Street Corp3.05%1,719,093$196.70MInstitution
Citadel Advisors LLC2.48%1,394,252$159.53MInstitution
Bank Of New York Mellon Corp2.39%1,344,706$153.86MInstitution

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RGEN vs Medical Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
RGEN74.77%25.23%Net SellingNet Selling
BLCO11.19%88.61%Net SellingNet Selling
TFX97.15%2.85%Net BuyingNet Selling
ATR92.93%3.93%Net SellingNet Selling
BAX86.88%13.12%Net SellingNet Selling

Repligen Stock Ownership FAQ

Who owns Repligen?

Repligen (NASDAQ: RGEN) is owned by 110.87% institutional shareholders, 37.41% Repligen insiders, and 0.00% retail investors. Bvf Partners L P is the largest individual Repligen shareholder, owning 11.06M shares representing 19.63% of the company. Bvf Partners L P's Repligen shares are currently valued at $1.22B.

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