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Schedule 13G filing
FMR LLC disclosed a 13% stake in Repligen Corp (RGEN)
FMR LLC reported owning 13% of Repligen Corp (RGEN) (7,361,318 shares) in a Schedule 13G filed Oct 7, 2026.
A 13G is a passive stake: the holder does not plan to push for changes.
More RGEN insider and Congress trades
From a public Schedule 13G, linked above. Not investment advice, and not a recommendation to buy or sell.