InsiderTrades

Form 4 for RGEN REPLIGEN CORP

Accepted 2025-09-04 00:00:00 ET · period of report 2025-09-02 · accession 0000950170-25-112985 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2025-09-04 2025-09-02 RGEN Hughes Violetta CAO A - Grant $0.00 +4,142 4,142 New $0
D 2025-09-04 2025-09-02 RGEN Hughes Violetta CAO A - Grant $0.00 +3,914 3,914 New $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-09-02 A A 4,142 $0.00 4,142 D — — (F1) Ms. Hughes was awarded 4,142 restricted stock units. Each restricted stock unit represents a contingent right to receive one share of Repligen Corporation's Common Stock. The restricted stock units vest in equal annual instalments over a five-year period beginning on the first anniversary of the grant date. The restricted stock units may be settled only by delivering shares of Repligen Corporation's Common Stock, and thus, the grant is being reported in Table 1 as allowed per SEC guidance.
2 Derivative Stock Option (Right to Buy) 2025-09-02 A A 3,914 $0.00 3,914 D $120.69 · — to 2035-09-02 3,914 Common Stock (F2) The shares vest in equal annual instalments over a five-year period with each such vesting date occurring on the anniversary of the grant date.