9999999995-24-001443.txt : 20240510 9999999995-24-001443.hdr.sgml : 20240510 20240510001509 ACCESSION NUMBER: 9999999995-24-001443 CONFORMED SUBMISSION TYPE: EFFECT PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20240509 DATE AS OF CHANGE: 20240510 EFFECTIVENESS DATE: 20240509 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Mersana Therapeutics, Inc. CENTRAL INDEX KEY: 0001442836 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] ORGANIZATION NAME: 03 Life Sciences IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: EFFECT SEC ACT: 1933 Act SEC FILE NUMBER: 333-271766 FILM NUMBER: 24932672 BUSINESS ADDRESS: STREET 1: 840 MEMORIAL DRIVE CITY: CAMBRIDGE STATE: MA ZIP: 02139 BUSINESS PHONE: 617-498-0020 MAIL ADDRESS: STREET 1: 840 MEMORIAL DRIVE CITY: CAMBRIDGE STATE: MA ZIP: 02139 FORMER COMPANY: FORMER CONFORMED NAME: MERSANA THERAPEUTICS INC DATE OF NAME CHANGE: 20080813 EFFECT 1 primary_doc.xml X0101 EFFECT 33 LIVE 2024-05-09 0001104659-24-028705 POS AM 0001442836 Mersana Therapeutics, Inc. 333-271766