Repligen Corp (RGEN) insider trading
Every open-market stock purchase and sale by Repligen Corp executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Olivier Loeillot (CEO) sold $6M in the last 90 days.
- Last insider buy: Martin D Madaus (Insider), $202K, 14 months ago.
Last 12 months: insiders bought $0 (0 buys) and sold $15.3M (13 sales). Last close $178.71 on Oct 22, 2026.
Recent RGEN insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Oct 6, 2026 | Brian Robb Douglass (C-suite exec) | Bought (not open market) | — |
| Oct 6, 2026 | Brian Robb Douglass (C-suite exec) | Bought (not open market) | — |
| Oct 5, 2026 | Olivier Loeillot (CEO) | Sold | $798K |
| Oct 5, 2026 | Olivier Loeillot (CEO) | Bought (not open market) | $651K |
| Oct 5, 2026 | Olivier Loeillot (CEO) | Sold | $238K |
| Oct 5, 2026 | Olivier Loeillot (CEO) | Bought (not open market) | — |
| Oct 2, 2026 | Olivier Loeillot (CEO) | Sold (not open market) | $227K |
| Sep 25, 2026 | Jason K Garland (CFO) | Sold (not open market) | $79.9K |
| Sep 24, 2026 | Olivier Loeillot (CEO) | Sold | $1.6M |
| Sep 24, 2026 | Olivier Loeillot (CEO) | Bought (not open market) | $1.3M |
| Sep 24, 2026 | Olivier Loeillot (CEO) | Sold | $863K |
| Sep 24, 2026 | Olivier Loeillot (CEO) | Bought (not open market) | $706K |
| Sep 24, 2026 | Olivier Loeillot (CEO) | Bought (not open market) | — |
| Sep 24, 2026 | Olivier Loeillot (CEO) | Bought (not open market) | — |
| Sep 21, 2026 | Olivier Loeillot (CEO) | Sold | $977K |
| Sep 21, 2026 | Olivier Loeillot (CEO) | Bought (not open market) | $769K |
| Sep 21, 2026 | Olivier Loeillot (CEO) | Bought (not open market) | — |
| Sep 4, 2026 | Olivier Loeillot (CEO) | Sold | $504K |
| Sep 3, 2026 | Olivier Loeillot (CEO) | Sold (not open market) | $482K |
| Sep 1, 2026 | Violetta Hughes (C-suite exec) | Sold (not open market) | $47.1K |
| Aug 20, 2026 | Olivier Loeillot (CEO) | Sold | $977K |
| Aug 20, 2026 | Olivier Loeillot (CEO) | Bought (not open market) | $769K |
| Aug 20, 2026 | Olivier Loeillot (CEO) | Bought (not open market) | — |
| Jul 16, 2026 | Jason K Garland (CFO) | Sold | $79.5K |
| Jun 25, 2026 | Jason K Garland (CFO) | Sold | $106K |
Who's trading RGEN
- Brian Robb Douglass, C-suite exec: other filings, last Oct 6, 2026
- Olivier Loeillot, CEO: sold $7.7M (9 sales), last Oct 5, 2026
- Jason K Garland, CFO: sold $186K (2 sales), last Sep 25, 2026
- Violetta Hughes, C-suite exec: other filings, last Sep 1, 2026
- Nicolas Barthelemy, Insider: other filings, last May 14, 2026
- Karen A Dawes, Insider: sold $44.3K (1 sale), last May 14, 2026
- Manner Carrie Eglinton, Insider: other filings, last May 14, 2026
- Glenn P Muir, Insider: other filings, last May 14, 2026
- Martin D Madaus, Insider: other filings, last May 14, 2026
- Rohin Mhatre, Insider: other filings, last May 14, 2026
- Margaret Pax, Insider: other filings, last May 14, 2026
- Konstantin Konstantinov, Insider: other filings, last May 14, 2026
- Ralf Kuriyel, VP: other filings, last Mar 5, 2026
- James Bylund, COO: sold $331K (1 sale), last Mar 5, 2026
- Anthony Hunt, Insider: sold $7M (12 sales), last Mar 2, 2026
Get free alerts when an insider at Repligen Corp files a new trade →