SEC Company Response from Mersana Therapeutics, Inc. (MRSN) (CIK 0001442836) — Nov 16, 2021
Mersana Therapeutics, Inc. (MRSN) (CIK 0001442836)
Date: Nov. 16, 2021 · CIK: 0001442836 · Accession: 0001104659-21-139913
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File numbers found in text: 333-260895
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CORRESP
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MERSANA THERAPEUTICS, INC.
840 Memorial Drive
Cambridge, MA 02139
November 16, 2021
VIA EDGAR
Securities and Exchange Commission
Division of Corporation Finance
Office of Life Sciences
100 F. Street, N.E.
Washington, D.C. 20549
Attention: Chris Edwards
Re: Mersana Therapeutics, Inc.
Registration Statement on Form S-3 (File No. 333-260895)
Request for Acceleration
Ladies and Gentlemen:
Pursuant to Rule 461 promulgated under the Securities
Act of 1933, as amended, Mersana Therapeutics, Inc. (the “Company”) hereby requests that the Securities and Exchange
Commission (the “Commission”) accelerate the effective date of the Company’s Registration Statement on Form S-3
(File No. 333-260895) (the “Registration Statement”), so that it will be declared effective at 4:00 p.m. Eastern Time
on November 18, 2021, or as soon as possible thereafter. The Company hereby authorizes Marc Rubenstein and William Michener, counsel to
the Company, to orally modify or withdraw this request for acceleration.
It would be appreciated if, as soon as the Registration
Statement is declared effective, you would inform William Michener of Ropes & Gray LLP, counsel to the Company, at (617) 951-7247.
Very truly yours,
MERSANA THERAPEUTICS, INC.
By:
/s/ Alejandra Carvajal
Alejandra Carvajal
Senior Vice President and Chief Legal Officer