Form 4 Tracker
RAPID MICRO BIOSYSTEMS, INC.
RPID

11 insider filings · Latest: May 29, 2026

Common Stock Transactions

No transactions found.

Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
May 29, 2026Jun 2 7:45 PMInese LowensteinDirector
Grant/Award
25,574$2.3412,787(D)

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May 29, 2026Jun 2 7:44 PMMelinda Litherland PeiDirector
Grant/Award
25,574$2.3412,787(D)

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May 29, 2026Jun 2 7:42 PMKirk MalloyDirector
Grant/Award
25,574$2.3412,787(D)

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May 29, 2026Jun 2 7:41 PMSean M WirtjesCHIEF FINANCIAL OFFICER
Grant/Award
25,574$2.3412,787(D)

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May 29, 2026Jun 2 7:40 PMRobert G. Spignesi Jr.Director, PRESIDENT AND CEO
Grant/Award
25,574$2.3412,787(D)

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May 21, 2026May 26 7:27 PMKirk MalloyDirector
Grant/Award
38,700$2.0738,700(D)

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May 21, 2026May 26 7:26 PMInese LowensteinDirector
Grant/Award
38,700$2.0738,700(D)

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May 21, 2026May 26 7:25 PMMelinda Litherland PeiDirector
Grant/Award
38,700$2.0738,700(D)

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May 21, 2026May 26 7:25 PMRichard S KollenderDirector
Grant/Award
38,700$2.0738,700(D)

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May 21, 2026May 26 7:24 PMDafni BikaDirector
Grant/Award
38,700$2.0738,700(D)

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May 20, 2026May 22 4:30 PMBain Capital Life Sciences Investors, LLC10% Owner
Purchase
4,389,000$2.341,463,000(I)

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