JOINT FILING AGREEMENT
Exhibit 99.1
In accordance with Rule 13d−1(k)(1) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to
the Common Stock of Mersana Therapeutics, Inc. and further agree that this Joint Filing Agreement be included as an Exhibit to such joint filings. In evidence thereof, the undersigned, being duly authorized, have executed this Joint Filing Agreement
this 25th day of January, 2021.
By:
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/s/ Xxxx XxXxxxx
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Name: Xxxx XxXxxxx
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Title: Senior Partner and General Counsel
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/s/Xxxxxxxxx X. Xxxxxx
Xxxxxxxxx X. Xxxxxx
Xxxxxxxxx X. Xxxxxx