Jean Francois Formela - 11 Jun 2024 Form 4 Insider Report for Korro Bio, Inc. (KRRO)

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	KRRO	Stock Option (Right to Buy)	Award	$0	+5,190		$0.000000	5,190	11 Jun 2024	Common Stock	5,190	$42.19	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Id	Content
F1	The shares subject to the option vest in full on the earlier of (i) the one-year anniversary of the grant date or (ii) the date of the next annual meeting of stockholders, subject to continued service as a non-employee director through the applicable vesting date.
F2	The Reporting Person is a member of Atlas XI and is obligated to transfer the economic benefit, if any, received upon the sale of the shares issuable upon exercise of the option to Atlas Venture Life Science Advisors, LLC. As such, the Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of his pecuniary interest therein, if any.