0001209191-23-020287.txt : 20230321 0001209191-23-020287.hdr.sgml : 20230321 20230321164251 ACCESSION NUMBER: 0001209191-23-020287 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230320 FILED AS OF DATE: 20230321 DATE AS OF CHANGE: 20230321 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Ross Thomas M. CENTRAL INDEX KEY: 0001874572 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40674 FILM NUMBER: 23750180 MAIL ADDRESS: STREET 1: C/O MAXCYTE, INC. STREET 2: 22 FIRSTFIELD ROAD, SUITE 110 CITY: GAITHERSBURG STATE: MD ZIP: 20878 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: MAXCYTE, INC. CENTRAL INDEX KEY: 0001287098 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH [8731] IRS NUMBER: 522210438 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 22 FIRSTFIELD ROAD STREET 2: SUITE 250 CITY: GAITHERSBURG STATE: MD ZIP: 20878 BUSINESS PHONE: 301-517-5556 MAIL ADDRESS: STREET 1: 22 FIRSTFIELD ROAD STREET 2: SUITE 250 CITY: GAITHERSBURG STATE: MD ZIP: 20878 FORMER COMPANY: FORMER CONFORMED NAME: MAXCYTE INC DATE OF NAME CHANGE: 20040415 4 1 doc4.xml FORM 4 SUBMISSION X0407 4 2023-03-20 0 0001287098 MAXCYTE, INC. MXCT 0001874572 Ross Thomas M. C/O MAXCYTE, INC. 9713 KEY WEST AVENUE, SUITE 400 ROCKVILLE MD 20850 0 1 0 0 EVP, Global Sales & Marketing 0 Employee Stock Option (right to buy) 4.19 2023-03-20 4 A 0 120000 0.00 A 2033-03-19 Common Stock 120000 120000 D 25% of the shares underlying this option vest on March 20, 2024 and the remaining 75% vest in 36 equal monthly installments thereafter, subject to the reporting person's continuous service with the Issuer at each vesting date. /s/ Brian F. Leaf, Attorney-in-Fact 2023-03-21