Robert G. Spignesi Jr. - 14 Mar 2022 Form 4 Insider Report for RAPID MICRO BIOSYSTEMS, INC. (RPID)

Role: President and CEO, Director
Signature: /s/ Jonathan Paris, Attorney-in-Fact for Robert G. Spignesi, Jr.
Issuer symbol: RPID
Transactions as of: 14 Mar 2022
Net transactions value: +$35,000
Form type: 4
Filing time: 15 Mar 2022, 19:15:10 UTC
Previous filing: 15 Feb 2022
Next filing: 18 May 2022
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	$35,000	+35,000	+23%	$1.00	184,027	14 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	-35,000	-20%	$0.000000	139,964	14 Mar 2022	Class A Common Stock	35,000	$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 224,964 shares and vested and became exercisable in 48 substantially equal monthly installments with the first installment vesting on November 12, 2017.