15 insiders reported 102 Form 4 transactions for REPLIGEN CORP (RGEN) over the past 18 months (most recent 2026-06-26). Recent activity: Garland Jason K (CFO) Sell 733 shares, MUIR GLENN P (Director) Buy 995 shares, DAWES KAREN A (Director) Buy 995 shares, BARTHELEMY NICOLAS (Director) Buy 995 shares, EGLINTON MANNER CARRIE (Director) Buy 995 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-26 | Garland Jason K | CFO | Sell | 733 | $106,285 |
| 2026-05-18 | MUIR GLENN P | Director | Buy | 995 | $0 |
| 2026-05-18 | DAWES KAREN A | Director | Buy | 995 | $0 |
| 2026-05-18 | BARTHELEMY NICOLAS | Director | Buy | 995 | $0 |
| 2026-05-18 | EGLINTON MANNER CARRIE | Director | Buy | 995 | $0 |
| 2026-05-18 | Konstantinov Konstantin | Director | Buy | 995 | $0 |
| 2026-05-18 | Mhatre Rohin | Director | Buy | 995 | $0 |
| 2026-05-18 | Pax Margaret | Director | Buy | 995 | $0 |
| 2026-05-18 | Madaus Martin D | Director | Buy | 995 | $0 |
| 2026-05-08 | MUIR GLENN P | Director | Buy | 2,434 | $94,342 |
| 2026-05-08 | Douglass Brian Robb | CHIEF PRODUCT OFFICER | Sell | 334 | $42,228 |
| 2026-04-22 | Loeillot Olivier | Chief Executive Officer | Sell | 3,832 | $536,480 |
| 2026-03-23 | Bylund James | Chief Operating Officer | Buy | 7,751 | $0 |
| 2026-03-23 | Loeillot Olivier | Chief Executive Officer | Buy | 24,134 | $0 |
| 2026-03-23 | KURIYEL RALF | Senior VP, R&D | Buy | 5,284 | $0 |
| 2026-03-23 | Garland Jason K | CFO | Buy | 7,751 | $0 |
| 2026-03-05 | Bylund James | Chief Operating Officer | Buy | 125 | $0 |
| 2026-03-05 | Bylund James | Chief Operating Officer | Sell | 62 | $7,802 |
| 2026-03-05 | KURIYEL RALF | Senior VP, R&D | Buy | 125 | $0 |
| 2026-03-05 | KURIYEL RALF | Senior VP, R&D | Sell | 42 | $5,285 |
| 2026-03-03 | KURIYEL RALF | Senior VP, R&D | Sell | 923 | $115,347 |
| 2026-03-03 | Hunt Anthony | Director | Sell | 9,897 | $1.2M |
| 2026-03-03 | Bylund James | Chief Operating Officer | Sell | 1,478 | $190,263 |
| 2026-03-03 | Bylund James | Chief Operating Officer | Sell | 2,433 | $304,052 |
| 2026-03-03 | KURIYEL RALF | Senior VP, R&D | Sell | 444 | $57,156 |
Source: SEC Form 4 filings · as of 2026-06-26