Olivier Loeillot
Chief Executive Officer at Repligen Corporation
Sits on 1 board. Last updated September 28, 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.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
Repligen Corporation May 14, 202699.8%
-
Repligen Corporation May 15, 202599.0%
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 |
|---|---|---|---|---|---|
| Oct 5, 2026 | Repligen Corporation | Open-market sale | −1,333 | $178.75 | $238,274 |
| Oct 5, 2026 | Repligen Corporation | Option exercise | +4,202 | $154.96 | $651,142 |
| Oct 5, 2026 | Repligen Corporation | Open-market sale | −4,202 | $190.00 | $798,380 |
| Oct 2, 2026 | Repligen Corporation | Shares withheld for tax | −1,248 | $181.70 | $226,762 |
| 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 |
Questions about Olivier Loeillot
What boards is Olivier Loeillot on?
Olivier Loeillot sits on the board of Repligen Corporation.
What company is Olivier Loeillot the CEO of?
Olivier Loeillot is Chief Executive Officer of Repligen Corporation.
How long has Olivier Loeillot served on boards?
Our records show at least 2 years of board service across 1 board, the earliest from 2024.
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