David Mott - Jun 11, 2021 Form 4 Insider Report for Mersana Therapeutics, Inc. (MRSN)

Role
Director
Signature
/s/ Brian DeSchuytner , as Attorney-in-Fact
Stock symbol
MRSN
Transactions as of
Jun 11, 2021
Transactions value $
$0
Form type
4
Date filed
6/15/2021, 06:02 PM
Next filing
Jun 21, 2021

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 +25.1K $0.00 25.1K Jun 11, 2021 Common Stock 25.1K $14.90 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The option vests in full on the earlier of the first anniversary of the date of grant or the date of the 2022 Annual Meeting of Stockholders of Mersana Therapeutics, Inc.