Olivier Loeillot
Chief Executive Officer at Repligen Corporation
Sits on 1 board. Last updated September 27, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 2 years
- Director since
- 2024
2 years of board service in total across 1 board, counting each seat separately. Longest: Repligen Corporation, 2 years.
Repligen Corporation
Director · Chief Executive Officer
Chief executive roles
Repligen Corporation
· Chief Executive Officer
Dates unknown
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Sep 24, 2026 | Repligen Corporation | Option exercise | +8,404 | $154.96 | $1,302,284 |
| Sep 24, 2026 | Repligen Corporation | Open-market sale | −8,404 | $190.00 | $1,596,760 |
| Sep 24, 2026 | Repligen Corporation | Option exercise | +4,542 | $155.38 | $705,736 |
| Sep 24, 2026 | Repligen Corporation | Open-market sale | −4,542 | $190.00 | $862,980 |
| Sep 21, 2026 | Repligen Corporation | Option exercise | +5,426 | $141.79 | $769,353 |
| Sep 21, 2026 | Repligen Corporation | Open-market sale | −5,426 | $180.00 | $976,680 |
| Sep 4, 2026 | Repligen Corporation | Open-market sale | −3,035 | $165.90 | $503,507 |
| Sep 3, 2026 | Repligen Corporation | Shares withheld for tax | −2,842 | $169.61 | $482,032 |
| Aug 20, 2026 | Repligen Corporation | Option exercise | +5,426 | $141.79 | $769,353 |
| Aug 20, 2026 | Repligen Corporation | Open-market sale | −5,426 | $180.00 | $976,680 |
| Apr 21, 2026 | Repligen Corporation | Open-market sale | −3,832 | $140.00 | $536,480 |
| Mar 5, 2026 | Repligen Corporation | Grant or award | +24,134 | — | — |
| Mar 2, 2026 | Repligen Corporation | Shares withheld for tax | −1,610 | $124.97 | $201,202 |
| Feb 27, 2026 | Repligen Corporation | Shares withheld for tax | −344 | $128.73 | $44,283 |
| Nov 25, 2025 | Repligen Corporation | Open-market sale | −7,041 | $170.00 | $1,196,970 |
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