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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date:
January 8, 2026
Accession Number:
0001104659-26-001281
Submission Type:
POS AM
CIK:
0001442836
Company Name:
Mersana Therapeutics, Inc.
File Number:
333-271766