Douglass Brian Robb 4
4 · REPLIGEN CORP · Filed Jan 12, 2026
Insider Transaction Report
Form 4
REPLIGEN CORPRGEN
Douglass Brian Robb
CHIEF PRODUCT OFFICER
Transactions
- Award
Common Stock
[F1]2025-12-31+2,288→ 8,540 total - Award
Stock Option (Right to Buy)
[F2]2025-12-31+2,143→ 2,143 totalExercise: $163.86Exp: 2035-12-31→ Common Stock (2,143 underlying)
Footnotes (2)
- [F1]Mr. Douglass was awarded 2,288 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 substantially equal annual instalments over a three-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.
- [F2]The shares will vest in substantially equal installments over a three-year period with each such vesting date occurring on the anniversary of the grant date.
Signature
/s/ Meghan Stapleton (Attorney in Fact)|2026-01-12