Form 4: Repligen CEO Sells Shares
Insider Transaction (Form 4)
Olivier Loeillot, Chief Executive Officer and a Director of Repligen Corp, sold 5,426 shares of common stock on August 20, 2026 for $180.00 per share.
Summary
- Option exercise/conversion: acquired 5,426 Common Stock at $141.79 ($769,353) on August 20, 2026; holds 59,672 after (Direct).
- Open-market sale: disposed of 5,426 Common Stock at $180.00 ($976,680) on August 20, 2026; holds 54,246 after (Direct).
- Option exercise/conversion: disposed of 5,426 Stock Option (Right to Buy) on August 20, 2026; holds 10,852 after (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $976,680 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 |
|---|---|---|---|---|---|---|
| 2026-08-20 | Option exercise/conversion | Common Stock | 5,426 | $142 | $769.4K | 59,672 |
| 2026-08-20 | Open-market sale | Common Stock | 5,426 | $180 | $976.7K | 54,246 |
| 2026-08-20 | Option exercise/conversion | Stock Option (Right to Buy) | 5,426 | — | — | 10,852 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-20 | Option exercise/conversion (5,426 shares) |
| 2026-08-20 | Open-market sale (5,426 shares) |
| 2026-08-20 | Option exercise/conversion (5,426 shares) |
Keywords
insider transaction, Form 4, RGEN, REPLIGEN CORP, bearish, Olivier Loeillot
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