Martin H. Huber Jr. - Jan 15, 2024 Form 4 Insider Report for Mersana Therapeutics, Inc. (MRSN)

Role
President, CEO, Director
Signature
/s/ Alejandra Carvajal, Attorney-in-Fact
Stock symbol
MRSN
Transactions as of
Jan 15, 2024
Transactions value $
$0
Form type
4
Date filed
1/17/2024, 05:19 PM
Previous filing
Oct 4, 2023
Next filing
Feb 9, 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 MRSN Stock Option (Right to Buy) Award $0 +199K $0.00 199K Jan 15, 2024 Common Stock 199K $3.02 Direct F1
transaction MRSN Restricted Stock Unit Award $0 +44.3K $0.00 44.3K Jan 15, 2024 Common Stock 44.3K Direct F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The option shall vest in equal quarterly installments over four years from the date of grant.
F2 Each restricted stock unit ("RSU") represents the contingent right to receive one share of common stock of the Issuer.
F3 The RSUs shall vest in equal annual installments over four years from the date of grant.