Mersana Therapeutics, Inc. — Director's Dealing 2018

Jan 4, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Mersana Therapeutics, Inc. (MRSN)
CIK: 0001442836
Period of Report: 2018-01-02

Reporting Person: Hege Kristen (Director)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-01-02	Stock Option (right to buy)	$17.39	A	3560	Acquired	2028-01-02	Common Stock (3560)	Direct

Footnotes

F1: The option becomes exercisable in equal quarterly installments on the last day of each calendar quarter of 2018.