Grant / AwardRoutine 10/100
filed 2026-10-08DROfficer
Douglass Brian Robb - CHIEF PRODUCT OFFICER - -
This is compensation-related stock, not a purchase decision - it should not be read as an open-market buy.
View source filingR
SEC EDGAR - Form 4 insider activity
Repligen Corp $RGEN
Tracked equity - 4 filings indexed by Nortis
Nortis signal thesis
Selling activity is leading recent insider flow. Review size, role and filing context.
0
OM buys - 90d
1
OM sells - 90d
3
Routine filings
0
Cluster filings
$1.30M
Largest trade
22/100
Avg signal score
Filing tape
Recent filings
Open-market SellNotable 56/100
filed 2026-10-06LOCEO
Loeillot Olivier - Director, Chief Executive Officer - $238.3K
Insiders sell for many reasons (diversification, tax, personal); size and clustering matter more than a single sale.
View source filingTax WithholdingRoutine 10/100
filed 2026-10-05LOCEO
Loeillot Olivier - Director, Chief Executive Officer - $226.8K
Shares were withheld to cover taxes on vesting stock - this is routine mechanics, not a discretionary insider sale.
View source filingOption ExerciseRoutine 10/100
filed 2026-09-25LOCEO
Loeillot Olivier - Director, Chief Executive Officer - $1.30M
Option exercises are often compensation mechanics rather than a direct market view; what happens to the shares next matters more.
View source filing