0001104659-24-077365.txt : 20240702 0001104659-24-077365.hdr.sgml : 20240702 20240702162555 ACCESSION NUMBER: 0001104659-24-077365 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240701 FILED AS OF DATE: 20240702 DATE AS OF CHANGE: 20240702 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Alleva Lawrence M CENTRAL INDEX KEY: 0001553053 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38129 FILM NUMBER: 241095839 MAIL ADDRESS: STREET 1: 1000 WINTER STREET STREET 2: SUITE 3300 CITY: WALTHAM STATE: MA ZIP: 02451 ISSUER: 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 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 4 1 tm2418758-1_4seq1.xml OWNERSHIP DOCUMENT X0508 4 2024-07-01 0 0001442836 Mersana Therapeutics, Inc. MRSN 0001553053 Alleva Lawrence M C/O MERSANA THERAPEUTICS, INC. 840 MEMORIAL DRIVE CAMBRIDGE MA 02139 1 0 0 0 0 Stock Option (right to buy) 1.97 2024-07-01 4 A 0 8972 0 A 2034-06-30 Common Stock 8972 8972 D This stock option was granted in connection with the Reporting Person's election to receive the Reporting Person's quarterly retainer for director services in the form of stock options rather than cash. The options were granted to the Reporting Person pursuant to the Issuer's Amended & Restated Non-Employee Director Compensation Policy, as amended, in lieu of retainer fees of $14,750 for the quarter ended June 30, 2024. Fully vested as of the date of grant. /s/ Brigitte Eichner, Attorney-in-Fact 2024-07-02