Olivier Loeillot sold $2.5M of RGEN stock

Olivier Loeillot, Chief Executive Officer of Repligen Corp (RGEN), sold 12,946 shares of RGEN stock worth $2.5M, per an SEC Form 4 filed Sep 25, 2026.

The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.

The trade happened on Sep 24, 2026, 1 day before it was made public.

RGEN has moved -12.7% since the trade date, from $190.65 to $166.52 (Nov 12, 2026 close).