Keith Michael Gottesdiener - Dec 5, 2024 Form 4 Insider Report for Prime Medicine, Inc. (PRME)

Role: Officer, Director
Signature: /s/ Karen Brown, attorney-in-fact
Stock symbol: PRME
Transactions as of: Dec 5, 2024
Transactions value $: $0
Form type: 4
Date filed: 12/9/2024, 06:23 PM
Previous filing: Oct 10, 2024

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	PRME	Stock Option (right to buy)	Award	$0	+100K	+100%	$0.00	200K	Dec 5, 2024	Common Stock	100K	$8.32	Direct	F1

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

Explanation of Responses:

Id	Content
F1	Represents an option initially granted to the Reporting Person on February 25, 2024, a portion of which shares underlying this option shall vest on February 25, 2025 upon the achievement of certain performance milestones. On December 5, 2024, the board of directors of the Issuer determined that one of the performance milestone conditions was achieved. As a result, the shares underlying this option shall vest on February 25, 2025, subject to the Reporting Person's continued service through such vesting date.

Content

Represents an option initially granted to the Reporting Person on February 25, 2024, a portion of which shares underlying this option shall vest on February 25, 2025 upon the achievement of certain performance milestones. On December 5, 2024, the board of directors of the Issuer determined that one of the performance milestone conditions was achieved. As a result, the shares underlying this option shall vest on February 25, 2025, subject to the Reporting Person's continued service through such vesting date.