Sean M. Wirtjes - 17 Mar 2022 Form 4 Insider Report for RAPID MICRO BIOSYSTEMS, INC. (RPID)

Role: Chief Financial Officer
Signature: /s/ Jonathan Paris, Attorney-in-Fact for Sean M. Wirtjes
Issuer symbol: RPID
Transactions as of: 17 Mar 2022
Net transactions value: +$10,000
Form type: 4
Filing time: 21 Mar 2022, 17:45:03 UTC
Previous filing: 15 Feb 2022
Next filing: 15 Feb 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	RPID	Class A Common Stock	Options Exercise	$10,000	+10,000	+5.5%	$1.00	191,631	17 Mar 2022	Direct

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)	Options Exercise	$0	-10,000	-11%	$0.000000	82,886	17 Mar 2022	Class A Common Stock	10,000	$1.00	Direct	F1

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

Explanation of Responses:

Id	Content
F1	The option was originally granted for 223,282 shares and vested and became exercisable as to 25% of the underlying shares on September 12, 2019 and in 36 substantially equal monthly installments thereafter.