Willard H. Dere - Apr 3, 2023 Form 4 Insider Report for Mersana Therapeutics, Inc. (MRSN)

Role: Director
Signature: /s/Alejandra Carvajal, as Attorney-in-Fact
Stock symbol: MRSN
Transactions as of: Apr 3, 2023
Transactions value $: $0
Form type: 4
Date filed: 4/5/2023, 05:12 PM
Previous filing: Aug 15, 2022
Next filing: May 24, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MRSN	Common Stock	Award	$0	+3.38K		$0.00	3.38K	Apr 3, 2023	Direct	F1

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

Explanation of Responses:

Id	Content
F1	These shares were granted in connection with the Reporting Person's election to receive the Reporting Person's quarterly retainer for director services in the form of fully vested shares of stock rather than cash. The shares were granted to the Reporting Person pursuant to the Issuer's Amended & Restated Non-Employee Director Compensation Policy in lieu of retainer fees of $13,875 for the quarter ended March 31, 2023. The number of shares issued was based on the closing price per share of the Issuer's common stock on March 31, 2023, which was $4.11.

Content

These shares were granted in connection with the Reporting Person's election to receive the Reporting Person's quarterly retainer for director services in the form of fully vested shares of stock rather than cash. The shares were granted to the Reporting Person pursuant to the Issuer's Amended & Restated Non-Employee Director Compensation Policy in lieu of retainer fees of $13,875 for the quarter ended March 31, 2023. The number of shares issued was based on the closing price per share of the Issuer's common stock on March 31, 2023, which was $4.11.