Form4.ai tracks every SEC insider trade in real time. See every KRRO insider filing with a free account — no card.
See every KRRO insider filing — free account, no card.
Free accountKorro Bio, Inc. (KRRO) has 7 SEC Form 4 insider filings on record in the last 90 days. That includes 2 insider purchases totalling $964K, and 5 sales totalling $1.1M. Most recent filing: Oct. 26, 2026.
Open-market value, last 90 days
Form 4 filings by type, last 90 days
| Date | Insider | Trade | Value | Price since buy |
|---|---|---|---|---|
| Oct 26, 2026 SEC filing | Lynx1 Capital Management LP 10% Owner | Bought | $884,752 | +42.9% 7D |
| Sep 15, 2026 SEC filing | FORMELA JEAN FRANCOIS Director | Sold | $686,177 | — |
| Sep 14, 2026 SEC filing | Dolan Oliver Senior Vice President, Finance | Sold | $69 | — |
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Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.