Form4.ai tracks every SEC insider trade in real time. See every RGEN insider filing with a free account — no card.
See every RGEN insider filing — free account, no card.
Free accountREPLIGEN CORP (RGEN) has 9 SEC Form 4 insider filings on record in the last 90 days. No insider purchases were filed — 2 sales totalling $2.7M. Most recent filing: Oct. 8, 2026.
Open-market value, last 90 days
Form 4 filings by type, last 90 days
| Date | Insider | Trade | Value | Price since buy |
|---|---|---|---|---|
| Oct 8, 2026 SEC filing | Douglass Brian Robb CHIEF PRODUCT OFFICER | Grant / award | — | — |
| Oct 6, 2026 SEC filing | Loeillot Olivier Chief Executive Officer | Sold | $249,658 | — |
| Oct 5, 2026 SEC filing | Loeillot Olivier Chief Executive Officer | Tax withholding | $226,762 | — |
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Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.