Martin H. Huber Jr. - 15 Jan 2024 Form 4 Insider Report for Mersana Therapeutics, Inc. (MRSN)

Signature
/s/ Alejandra Carvajal, Attorney-in-Fact
Issuer symbol
MRSN
Transactions as of
15 Jan 2024
Net transactions value
$0
Form type
4
Filing time
17 Jan 2024, 17:19:30 UTC
Previous filing
04 Oct 2023
Next filing
09 Feb 2024

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 +199,125 $0.000000 199,125 15 Jan 2024 Common Stock 199,125 $3.02 Direct F1
transaction MRSN Restricted Stock Unit Award $0 +44,250 $0.000000 44,250 15 Jan 2024 Common Stock 44,250 Direct F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The option shall vest in equal quarterly installments over four years from the date of grant.
F2 Each restricted stock unit ("RSU") represents the contingent right to receive one share of common stock of the Issuer.
F3 The RSUs shall vest in equal annual installments over four years from the date of grant.