Alejandra Carvajal - Apr 26, 2022 Form 4 Insider Report for Mersana Therapeutics, Inc. (MRSN)

Role
Chief Legal Officer
Signature
/s/Alejandra Carvajal
Stock symbol
MRSN
Transactions as of
Apr 26, 2022
Transactions value $
-$14,568
Form type
4
Date filed
4/28/2022, 05:23 PM
Previous filing
Jan 19, 2022
Next filing
Jan 18, 2023

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MRSN Common Stock Options Exercise $0 +13.3K $0.00 13.3K Apr 26, 2022 Direct F1
transaction MRSN Common Stock Sale -$14.6K -3.95K -29.8% $3.69 9.3K Apr 26, 2022 Direct F2

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 MRSN Restricted stock unit Options Exercise $0 -13.3K -50% $0.00 13.3K Apr 26, 2022 Common Stock 13.3K Direct F3, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents shares of common stock received upon the vesting of a portion of the restricted stock units ("RSUs") awarded to the Reporting Person on April 26, 2021.
F2 Represents the sale of shares of common stock to satisfy the Reporting Person's tax withholding obligations in connection with the service-based vesting and settlement of the RSUs.
F3 Each RSU represents the contingent right to receive one share of common stock of the Issuer.
F4 The RSUs vested as to 50% of the shares on April 26, 2022 and will vest as to 50% of the shares on April 26, 2023, subject to the Reporting Person's continued service to the Issuer on such date.

Remarks:

Exhibit 24 - Power of Attorney