KRRO
insider transactionsKorro Bio, Inc. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 30d
-34.6K
0 buy · 34.6K sell
Net value · 30d
-$416.1K
$0 in · $416.1K out
Sentiment · 30d
Net selling
0% buying · 100% selling
Open-market trades · 30d
7
0 buy · 34.6K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
-
Sell·S
Chief Scientific Officer
$37.0K
3.4K sh · $10.83
Own -16%
-
Sell·S
Oliver Dolan KEY
Senior Vice President, Finance
$36.6K
3.4K sh · $10.83
Own -16%
-
Sell·S
Chief Operating Officer
$34.3K
3.2K sh · $10.83
Own -16%
-
Sell·S
General Counsel
$71.6K
6.6K sh · $10.83
Own -16%
-
Grant·A
Director
$0
14.7K sh
Own New
-
Grant·A
Director
$0
14.7K sh
Own New
-
Grant·A
Director
$0
14.7K sh
Own New
-
Grant·A
Director
$0
14.7K sh
Own New
-
Grant·A
Director
$0
14.7K sh
Own New
-
Sell·S
Ram Aiyar KEY
President and CEO
$196.7K
15.2K sh · $12.98
Own -17%
-
Sell·S
Director · 10b5-1
$5.8K
419 sh · $13.95
Own -0%
-
Sell·S
Director · 10b5-1
$34.1K
2.4K sh · $13.95
Own -0%
-
Grant·A
Ram Aiyar KEY
President and CEO
$616.5K
50.0K sh · $12.33
Own +125%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 16, 2026 | Loic A Vincent | Sell S | 3.4K | $37.0K |
| Jun 16, 2026 | Oliver Dolan KEY | Sell S | 3.4K | $36.6K |
| Jun 16, 2026 | Todd Chappell | Sell S | 3.2K | $34.3K |
| Jun 16, 2026 | Jeffrey Cerio | Sell S | 6.6K | $71.6K |
| Jun 10, 2026 | Rachel Meyers | Grant A | 14.7K | $0 |
| Jun 10, 2026 | Timothy R Pearson | Grant A | 14.7K | $0 |
| Jun 10, 2026 | Katharine Knobil | Grant A | 14.7K | $0 |
| Jun 10, 2026 | FORMELA JEAN FRANCOIS | Grant A | 14.7K | $0 |
| Jun 10, 2026 | Nessan Bermingham | Grant A | 14.7K | $0 |
| May 29, 2026 | Ram Aiyar KEY | Sell S | 15.2K | $196.7K |
| May 28, 2026 | FORMELA JEAN FRANCOIS 10b5-1 | Sell S | 419 | $5.8K |
| May 28, 2026 | FORMELA JEAN FRANCOIS 10b5-1 | Sell S | 2.4K | $34.1K |
| May 26, 2026 | Ram Aiyar KEY | Grant A | 50.0K | $616.5K |
About KRRO insider trading
This page tracks insider transactions for Korro Bio, Inc. (KRRO) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.