Melinda Litherland Pei - May 22, 2025 Form 4 Insider Report for RAPID MICRO BIOSYSTEMS, INC. (RPID)

Role
Director
Signature
/s/ Sean M. Wirtjes, Attorney-in-Fact for Melinda Litherland Pei
Stock symbol
RPID
Transactions as of
May 22, 2025
Transactions value $
$0
Form type
4
Date filed
5/27/2025, 08:12 PM
Previous filing
Apr 24, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
PEI MELINDA LITHERLAND Director C/O RAPID MICRO BIOSYSTEMS, INC., 25 HARTWELL AVENUE, LEXINGTON /s/ Sean M. Wirtjes, Attorney-in-Fact for Melinda Litherland Pei 2025-05-27 0001703469

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction RPID Class A Common Stock Award $0 +14.3K +26.34% $0.00 68.6K May 22, 2025 Direct F1

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 +28.7K $0.00 28.7K May 22, 2025 Class A Common Stock 28.7K $3.15 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Grant of restricted stock units ("RSUs") that vests in full on the earlier of (i) the first anniversary of the Grant Date, or (ii) the day immediately prior to the date of the next annual meeting of the stockholders of the Company provided that the Reporting Person remains in continuous service on such vesting date.
F2 The option shall vest and become exercisable in full on the earlier of (i) the first anniversary of the Grant Date, or (ii) the day immediately prior to the date of the next annual meeting of the stockholders of the Company provided that the Reporting Person remains in continuous service on such vesting date.