0001380106-23-000157.txt : 20230908 0001380106-23-000157.hdr.sgml : 20230908 20230908073659 ACCESSION NUMBER: 0001380106-23-000157 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230906 FILED AS OF DATE: 20230908 DATE AS OF CHANGE: 20230908 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: WIRTJES SEAN M CENTRAL INDEX KEY: 0001289733 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40592 FILM NUMBER: 231243686 MAIL ADDRESS: STREET 1: C/O VARIAN, INC., 3120 HANSEN WAY STREET 2: M/S D-083 CITY: PALO ALTO STATE: CA ZIP: 94304-1030 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: RAPID MICRO BIOSYSTEMS, INC. CENTRAL INDEX KEY: 0001380106 STANDARD INDUSTRIAL CLASSIFICATION: LABORATORY ANALYTICAL INSTRUMENTS [3826] IRS NUMBER: 000000000 STATE OF INCORPORATION: MA FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 1001 PAWTUCKET BLVD. CITY: LOWELL STATE: MA ZIP: 01854 BUSINESS PHONE: 978-349-3200 MAIL ADDRESS: STREET 1: 1001 PAWTUCKET BLVD. CITY: LOWELL STATE: MA ZIP: 01854 FORMER COMPANY: FORMER CONFORMED NAME: RAPID MICRO BIOSYSTEMS INC DATE OF NAME CHANGE: 20061103 4 1 wf-form4_169417300562345.xml FORM 4 X0508 4 2023-09-06 0 0001380106 RAPID MICRO BIOSYSTEMS, INC. RPID 0001289733 WIRTJES SEAN M C/O RAPID MICRO BIOSYSTEMS, INC. 1001 PAWTUCKET BOULEVARD WEST, SUITE 280 LOWELL MA 01854 0 1 0 0 CHIEF FINANCIAL OFFICER 0 Class A Common Stock 2023-09-06 4 P 0 10000 0.9894 A 285651 D The reported price in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $0.920 to $1.020 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. Includes 6,739 shares acquired under the Rapid Micro Biosystems, Inc. employee stock purchase plan on March 14, 2023. /s/ Jonathan Paris, Attorney-in-Fact for Sean M. Wirtjes 2023-09-08