Form Type: 4

SEC EDGAR Link
Accession Number:0001104659-20-078225
Date:2020-06-25
Issuer: MERSANA THERAPEUTICS, INC. (MRSN)
Original Submission Date:

Reporting Person:

DERE WILLARD H
C/O MERSANA THERAPEUTICS, INC.
840 MEMORIAL DRIVE CAMBRIDGE, MA 02139

Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
Title of SecurityTransaction Date2a. Deemed Execution Date Transaction CodeSharesAcquired or DisposedPrice per share 5. Amount of Securities Beneficially Owned Following Reported Transaction 6. Ownership Form Direct or IndirectNature of Indirect Ownership
Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, convertible securities
Title of Derivative Security Conversion or Exercise Price of Derivative Security Transaction Date Deemed Execution Date Transaction Code Number of Derivative Securities Acquired (A) or Disposed of (D) Date ExercisableExpiration Date Title and Amount of Securities Underlying Derivative Security Price of Derivative Security Number of derivative Securities Beneficially Owned Following Reported Transaction(s) Ownership Form: Direct (D) or Indirect (I) Nature of Indirect Beneficial Ownership
STOCK OPTION (RIGHT TO BUY) 22.9 2020-06-25 deemed execution date A 9,200 (a) 2030-06-25 common stock 9,200 $22.90 9,200 direct
Footnotes
IDfootnote
f1 the option vests in full on the earlier of the first anniversary of the date of grant or the date of the 2021 annual meeting of stockholders of mersana therapeutics, inc.
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