Form 4 Tracker
REPLIGEN CORP
RGEN

15 insider filings · Latest: May 14, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Apr 21, 2026Apr 22 1:26 PMOlivier LoeillotDirector, Chief Executive Officer
Sale
3,832$140.00$536.5K54,246(D)

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
May 14, 2026May 18 4:05 PMMartin D MadausDirector
Grant/Award
2,239$103.382,239(D)

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May 14, 2026May 18 4:05 PMKonstantin KonstantinovDirector
Grant/Award
2,239$103.382,239(D)

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May 14, 2026May 18 4:05 PMRohin MhatreDirector
Grant/Award
2,239$103.382,239(D)

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May 14, 2026May 18 4:05 PMManner Carrie EglintonDirector
Grant/Award
2,239$103.382,239(D)

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May 14, 2026May 18 4:05 PMMargaret PaxDirector
Grant/Award
2,239$103.382,239(D)

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May 14, 2026May 18 4:05 PMKaren A DawesDirector
Grant/Award
2,239$103.382,239(D)

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May 14, 2026May 18 4:05 PMGlenn P MuirDirector
Grant/Award
2,239$103.382,239(D)

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May 14, 2026May 18 4:05 PMNicolas BarthelemyDirector
Grant/Award
2,239$103.382,239(D)

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May 7, 2026May 8 2:48 PMGlenn P MuirDirector
Option Exercise
2,434$38.762,434(D)

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Mar 5, 2026Mar 23 12:00 PMRalf KuriyelSenior VP, R&D
Grant/Award
5,669$141.915,669(D)

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Mar 5, 2026Mar 23 11:53 AMOlivier LoeillotChief Executive Officer
Grant/Award
25,890$141.9125,890(D)

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Mar 5, 2026Mar 23 11:53 AMJames BylundChief Operating Officer
Grant/Award
8,315$141.918,315(D)

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Mar 5, 2026Mar 23 11:51 AMJason K GarlandCFO
Grant/Award
8,315$141.918,315(D)

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