Natale S. Ricciardi - 27 Feb 2026 Form 4 Insider Report for RAPID MICRO BIOSYSTEMS, INC. (RPID)

Role
Director
Signature
/s/ Sean M. Wirtjes, Attorney-in-Fact for Natale S. Ricciardi
Issuer symbol
RPID
Transactions as of
27 Feb 2026
Net transactions value
$0
Form type
4
Filing time
02 Mar 2026, 18:11:14 UTC
Previous filing
27 May 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
RICCIARDI NATALE S Director C/O RAPID MICRO BIOSYSTEMS, INC., 25 HARTWELL AVENUE, LEXINGTON /s/ Sean M. Wirtjes, Attorney-in-Fact for Natale S. Ricciardi 02 Mar 2026 0001107158

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction RPID Class A Common Stock Options Exercise $632 +842 +2.9% $0.7500 29,442 27 Feb 2026 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 $632 -842 -100% $0.7500 0 27 Feb 2026 Class A Common Stock 842 $0.7500 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The option is fully vested and exercisable.