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

Signature
Brian DeSchuytner, as Attorney-in-Fact
Issuer symbol
MRSN
Transactions as of
16 Aug 2021
Net transactions value
$0
Form type
4
Filing time
18 Aug 2021, 16:32:06 UTC
Next filing
19 Jan 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 +112,500 $0.000000 112,500 16 Aug 2021 Common Stock 112,500 $11.56 Direct F1
transaction MRSN Restricted stock unit Award $0 +25,000 $0.000000 25,000 16 Aug 2021 Common Stock 25,000 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.