Brian DeSchuytner - Jan 14, 2022 Form 4 Insider Report for Mersana Therapeutics, Inc. (MRSN)

Role
Chief Financial Officer
Signature
/s/ Brian DeSchuytner
Stock symbol
MRSN
Transactions as of
Jan 14, 2022
Transactions value $
$0
Form type
4
Date filed
1/19/2022, 04:45 PM
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 +10.2K +138.6% 17.6K Jan 14, 2022 Direct F1

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 Units Options Exercise $0 -3.96K -33.33% $0.00 7.92K Jan 14, 2022 Common Stock 3.96K Direct F1, F2
transaction MRSN Restricted Stock Units Options Exercise $0 -6.25K -25% $0.00 18.8K Jan 14, 2022 Common Stock 6.25K Direct F1, F3
transaction MRSN Stock Option (right to buy) Award $0 +113K $0.00 113K Jan 14, 2022 Common Stock 113K $6.28 Direct F4
transaction MRSN Restricted Stock Units Award $0 +25K $0.00 25K Jan 14, 2022 Common Stock 25K Direct F1, F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock upon vesting.
F2 50% of the total number of RSUs vested as of January 14, 2022, and thereafter shall vest in equal annual installments over the next two years.
F3 25% of the total number of RSUs vested on January 14, 2022, and thereafter shall vest in equal annual installments over the next three years.
F4 The option vests in equal quarterly installments over the first four years after the vesting commencement date, January 14, 2022.
F5 The restricted stock units vest in equal annual installments over the first four years after the vesting commencement date, January 14, 2022.