Rapid Micro Biosystems, Inc.

RPID·NASDAQ·$2.01Share Price as of 11/2·$91MMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/07/26 10-QQ1 ended 03/31/2605/15/26 10-KFY 202503/12/26 10-QQ3 ended 09/30/2511/07/25 10-QQ2 ended 06/30/2508/12/25

Disclosures

8-KCurrent report08/07/26 8-KCurrent report05/28/26 8-KCurrent report05/19/26 8-KCurrent report05/13/26 8-KCurrent report03/27/26

Prospectuses and Registrations

424B5Prospectus supplement05/19/26 424B5Prospectus supplement05/19/26 S-8Registration of securities for employees03/12/26 S-8Registration of securities for employees02/28/25 S-8Registration of securities for employees03/01/24

Proxies

DEF 14ADefinitive proxy04/08/26 DEFA14AAdditional proxy materials04/08/26 DEF 14ADefinitive proxy04/08/25 DEFA14AAdditional proxy materials04/08/25 DEF 14ADefinitive proxy04/09/24

Ownership

SC 13GBeneficial ownership08/14/26 SC 13G/ABeneficial ownership (amended)08/14/26 Form 4Insider transaction07/24/26 Form 4Insider transaction07/24/26 144Proposed sale of securities07/08/26

Other

SDConflict Minerals disclosure05/29/26 ARSAnnual report to shareholders04/08/26 SDConflict Minerals disclosure05/29/25 ARSAnnual report to shareholders04/08/25 SDConflict Minerals disclosure05/30/24