Form 4 Tracker
James Bylund

Chief Operating Officer · 3 filings · Latest: Mar 5, 2026

REPLIGEN CORP
TickerOwnerRelationshipDateTransactionCost#SharesValue ($)#Shares TotalSEC Filing
RGEN
Bylund JamesNov 18, 2025
Proposed Sale
$151.212,191$331.3K