Form 4: Korro Bio Director Sells Shares
Insider Transaction (Form 4)
Jean Francois Formela, a Director of Korro Bio, Inc., sold 48,690 shares of common stock on September 11, 2026.
Summary
- Open-market sale: disposed of 8,450 Common Stock at $13.99 ($118,216) on September 11, 2026; holds 672,498 after (Indirect).
- Open-market sale: disposed of 1,750 Common Stock at $13.99 ($24,482) on September 11, 2026; holds 139,252 after (Indirect).
- Open-market sale: disposed of 31,888 Common Stock at $14.12 ($450,259) on September 14, 2026; holds 640,610 after (Indirect).
- Open-market sale: disposed of 6,602 Common Stock at $14.12 ($93,220) on September 14, 2026; holds 132,650 after (Indirect).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $686,177 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Jean Francois Formela — Director
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-09-11 | Open-market sale | Common Stock | 8,450 | $14 | $118.2K | 672,498 |
| 2026-09-11 | Open-market sale | Common Stock | 1,750 | $14 | $24.5K | 139,252 |
| 2026-09-14 | Open-market sale | Common Stock | 31,888 | $14 | $450.3K | 640,610 |
| 2026-09-14 | Open-market sale | Common Stock | 6,602 | $14 | $93.2K | 132,650 |
Key Dates
| Date | Description |
|---|---|
| 2026-09-11 | Open-market sale (8,450 shares) |
| 2026-09-11 | Open-market sale (1,750 shares) |
| 2026-09-14 | Open-market sale (31,888 shares) |
| 2026-09-14 | Open-market sale (6,602 shares) |
Keywords
insider transaction, Form 4, KRRO, Korro Bio, Inc., bearish, Jean Francois Formela
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