// company-profile
Korro Bio, Inc.
KRRO// activity-summary
Recent insider activity is bullish. Over the last 30 days, 7 insiders purchased shares (net $240K) versus 5 sales. Buying was led by Aiyar Ram.
// 90-day insight
Over the last 90 days, Korro Bio, Inc. insiders bought $622K (8 transactions) and sold $376K (5 transactions).
- Most active insider: FORMELA JEAN FRANCOIS with 3 transactions totaling $40K.
- Largest single purchase: $617K by Aiyar Ram on May 26, 2026.
- 29% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Korro Bio, Inc. as of 2026-03-31
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 16, 2026 | Chappell Todd | KRRO | Sale | 3,168 | $10.83 | $34K |
| Jun 16, 2026 | Vincent Loic A | KRRO | Sale | 3,418 | $10.83 | $37K |
| Jun 16, 2026 | Dolan Oliver | KRRO | Sale | 3,383 | $10.83 | $37K |
| Jun 16, 2026 | Cerio Jeffrey | KRRO | Sale | 6,609 | $10.83 | $72K |
| Jun 10, 2026 | Behbahani Ali | KRRO | Award | 14,677 | $0.00 | $0K |
45 more transactions hidden
Free account · No credit card required
Building something? Get API access →
Popular companies on Form4API
Browse insider trading activity for other actively-filed companies.