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

Role
Chief Financial Officer
Signature
/s/ Brian DeSchuytner
Issuer symbol
MRSN
Transactions as of
14 Jan 2022
Net transactions value
$0
Form type
4
Filing time
19 Jan 2022, 16:45:36 UTC
Next filing
18 Jan 2023
SEC
View on sec.gov

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MRSN Common Stock Options Exercise +10,208 +139% 17,573 14 Jan 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 -3,958 -33% $0.000000 7,916 14 Jan 2022 Common Stock 3,958 Direct F1, F2
transaction MRSN Restricted Stock Units Options Exercise $0 -6,250 -25% $0.000000 18,750 14 Jan 2022 Common Stock 6,250 Direct F1, F3
transaction MRSN Stock Option (right to buy) Award $0 +112,500 $0.000000 112,500 14 Jan 2022 Common Stock 112,500 $6.28 Direct F4
transaction MRSN Restricted Stock Units Award $0 +25,000 $0.000000 25,000 14 Jan 2022 Common Stock 25,000 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.