Tushar Misra - Aug 16, 2021 Form 4 Insider Report for Mersana Therapeutics, Inc. (MRSN)

Role
Chief Manufacturing Officer
Signature
Brian DeSchuytner, as Attorney-in-Fact
Stock symbol
MRSN
Transactions as of
Aug 16, 2021
Transactions value $
$0
Form type
4
Date filed
8/18/2021, 04:32 PM
Next filing
Jan 19, 2022

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 +113K $0.00 113K Aug 16, 2021 Common Stock 113K $11.56 Direct F1
transaction MRSN Restricted stock unit Award $0 +25K $0.00 25K Aug 16, 2021 Common Stock 25K Direct F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The options will vest as to 25% of the shares on the first anniversary of the grant date and in equal quarterly installments over the next three years.
F2 Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock upon vesting.
F3 The restricted stock units will vest in equal annual installments over the first four years after the vesting commencement date, August 16, 2021.