CIK 0001703647 · Non-accelerated filer<br>Smaller reporting company
Korro Bio, Inc.
Sign in to watch- Ticker
- KRRO
- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 472324450
- Phone
- 617-468-1999
- Business address
- 60 FIRST STREET, 2ND FLOOR, SUITE 250, CAMBRIDGE, MA, 02141
- Former names
- Frequency Therapeutics, Inc.
- Open-market buys, last 90 days
- $884,752
- in 1 filing
- Open-market sales, last 90 days
- $2,161,962
- in 6 filings, $2.2M under 10b5-1 plans
Net −$1,277,210. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-06-22 | FORMELA JEAN FRANCOIS Director | Sale 10b5-1 | −3,382 | $13.95 | $47K | 936,252 |
| 2026-06-22 | FORMELA JEAN FRANCOIS Director | Sale 10b5-1 | −580 | $13.95 | $8K | 194,075 |
| 2026-06-16 | Chappell Todd Chief Operating Officer | Sale | −3,168 | $10.83 | $34K | 16,964 |
| 2026-06-16 | Vincent Loic A Chief Scientific Officer | Sale | −3,418 | $10.83 | $37K | 18,297 |
| 2026-06-16 | Cerio Jeffrey General Counsel | Sale | −6,609 | $10.83 | $72K | 35,293 |
| 2026-06-16 | Dolan Oliver Senior Vice President, Finance | Sale | −3,383 | $10.83 | $37K | 18,099 |
| 2026-06-10 | Behbahani Ali Director | Grant or award · Stock Option (Right to Buy) | +14,677 | 14,677 | ||
| 2026-06-10 | Meyers Rachel Director | Grant or award · Stock Option (Right to Buy) | +14,677 | 14,677 | ||
| 2026-06-10 | Bermingham Nessan Director | Grant or award · Stock Option (Right to Buy) | +14,677 | 14,677 | ||
| 2026-06-10 | Knobil Katharine Director | Grant or award · Stock Option (Right to Buy) | +14,677 | 14,677 | ||
| 2026-06-10 | FORMELA JEAN FRANCOIS Director | Grant or award · Stock Option (Right to Buy) | +14,677 | 14,677 | ||
| 2026-06-10 | PEARSON TIMOTHY R Director | Grant or award · Stock Option (Right to Buy) | +14,677 | 14,677 | ||
| 2026-05-29 | Aiyar Ram President and CEO | Sale | −15,152 | $12.98 | $197K | 74,848 |
| 2026-05-28 | FORMELA JEAN FRANCOIS Director | Sale 10b5-1 | −2,441 | $13.95 | $34K | 939,634 |
| 2026-05-28 | FORMELA JEAN FRANCOIS Director | Sale 10b5-1 | −419 | $13.95 | $6K | 194,655 |
| 2026-05-26 | Aiyar Ram President and CEO | Grant or award | +50,000 | $12.33 | $617K | 90,000 |
| 2026-03-31 | Lynx1 Capital Management LP 10% owner | Purchase | +520 | $10.60 | $6K | 1,538,296 |
| 2026-03-10 | Yang Rick 10% owner | Purchase | +207,100 | $11.11 | $2.3M | 1,297,893 |
| 2026-03-10 | Yang Rick 10% owner | Purchase · Pre-Funded Warrants | +242,945 | $11.11 | $2.7M | 242,945 |
| 2026-03-10 | SANDELL SCOTT D 10% owner | Purchase | +207,100 | $11.11 | $2.3M | 1,297,893 |
Page 3 of 10 · 188 trades