Form 4: Repligen CEO Sells Shares
Insider Transaction (Form 4)
Olivier Loeillot, Chief Executive Officer and a Director of Repligen Corp, sold 3,035 shares of common stock on September 3, 2026 for $165.90 per share.
Summary
- Tax/exercise-price withholding: disposed of 2,842 Common Stock at $169.61 ($482,032) on September 3, 2026; holds 51,404 after (Direct).
- Open-market sale: disposed of 3,035 Common Stock at $165.90 ($503,506) on September 4, 2026; holds 48,369 after (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $503,506 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Olivier Loeillot — Director, Officer (Chief Executive Officer)
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-09-03 | Tax/exercise-price withholding | Common Stock | 2,842 | $170 | $482.0K | 51,404 |
| 2026-09-04 | Open-market sale | Common Stock | 3,035 | $166 | $503.5K | 48,369 |
Key Dates
| Date | Description |
|---|---|
| 2026-09-03 | Tax/exercise-price withholding (2,842 shares) |
| 2026-09-04 | Open-market sale (3,035 shares) |
Keywords
insider transaction, Form 4, RGEN, REPLIGEN CORP, bearish, Olivier Loeillot
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