RAPID MICRO BIOSYSTEMS, INC. — Director's Dealing 2023

May 18, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: RAPID MICRO BIOSYSTEMS, INC. (RPID)
CIK: 0001380106
Period of Report: 2023-05-17

Reporting Person: Spignesi Robert G. Jr. (Director, PRESIDENT AND CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-05-17	Class A Common Stock	P	200	$0.89	Acquired	294973	Direct
2023-05-17	Class A Common Stock	P	100	$0.901	Acquired	295073	Direct
2023-05-17	Class A Common Stock	P	3000	$0.905	Acquired	298073	Direct
2023-05-17	Class A Common Stock	P	14700	$0.91	Acquired	312773	Direct
2023-05-17	Class A Common Stock	P	1400	$0.92	Acquired	314173	Direct
2023-05-17	Class A Common Stock	P	100	$0.923	Acquired	314273	Direct
2023-05-17	Class A Common Stock	P	100	$0.924	Acquired	314373	Direct
2023-05-17	Class A Common Stock	P	100	$0.925	Acquired	314473	Direct
2023-05-17	Class A Common Stock	P	300	$0.93	Acquired	321512	Direct

Footnotes

F1: Includes 6,739 shares acquired under the Rapid Micro Biosystems, Inc. employee stock purchase plan on March 14, 2023.