Dafni Bika - May 22, 2025 Form 4 Insider Report for RAPID MICRO BIOSYSTEMS, INC. (RPID)

Role: Director
Signature: /s/ Sean Wirtjes, Attorney-in-Fact for Dafni Bika
Stock symbol: RPID
Transactions as of: May 22, 2025
Transactions value $: $0
Form type: 4
Date filed: 5/27/2025, 08:31 PM
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Bika Dafni	Director	C/O RAPID MICRO BIOSYSTEMS, INC., 25 HARTWELL AVENUE, LEXINGTON	/s/ Sean Wirtjes, Attorney-in-Fact for Dafni Bika	2025-05-27	0002070373

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	RPID	Stock Option (Right to Buy)	Award	$0	+50K		$0.00	50K	May 22, 2025	Class A Common Stock	50K	$3.15	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	This option vests and becomes exercisable, subject to the Reporting Person's continued service on the Issuer's Board, in 36 substantially equal monthly installments with the first installment vesting on June 22, 2025.