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Rapid Micro Biosystems, Inc. (RPID)

Rapid Micro Biosystems, Inc. (RPID) Insider Trading

Directors, officers and holders of more than 10% of RPID report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 106 transactions on file: 3 with code P, 8 with code S and 39 with other codes.

DateInsiderCodeShares
Jul 24, 2026Kollender Richard SM Exercise1,827
Jul 24, 2026Kollender Richard SM Exercise1,827
Jul 24, 2026Kollender Richard SM Exercise1,681
Jul 24, 2026Kollender Richard SM Exercise1,681
Jul 22, 2026Spignesi Robert G. Jr.M Exercise1,402
Jul 22, 2026Spignesi Robert G. Jr.M Exercise1,402
May 29, 2026Malloy KirkA Award12,787
May 29, 2026LOWENSTEIN INESEA Award12,787
May 29, 2026Spignesi Robert G. Jr.A Award12,787
May 29, 2026PEI MELINDA LITHERLANDA Award12,787
May 29, 2026LOWENSTEIN INESEA Award12,787
May 29, 2026PEI MELINDA LITHERLANDA Award12,787
May 29, 2026WIRTJES SEAN MA Award12,787
May 29, 2026Malloy KirkA Award12,787
May 29, 2026WIRTJES SEAN MA Award12,787
May 29, 2026LOWENSTEIN INESEA Award12,787
May 29, 2026PEI MELINDA LITHERLANDA Award12,787
May 29, 2026Spignesi Robert G. Jr.A Award12,787
May 29, 2026WIRTJES SEAN MA Award12,787
May 29, 2026Spignesi Robert G. Jr.A Award12,787
May 29, 2026Malloy KirkA Award12,787
May 21, 2026Kollender Richard SA Award38,700
May 21, 2026PEI MELINDA LITHERLANDA Award38,700
May 21, 2026Bika DafniA Award38,700
May 21, 2026LOWENSTEIN INESEA Award38,700
May 21, 2026LOWENSTEIN INESEA Award19,300
May 21, 2026PEI MELINDA LITHERLANDA Award19,300
May 21, 2026Malloy KirkA Award19,300
May 21, 2026Malloy KirkA Award38,700
May 21, 2026Bika DafniA Award19,300
May 21, 2026Kollender Richard SA Award19,300
May 20, 2026Bain Capital Life Sciences Investors, LLCP Purchase1,463,000
May 20, 2026Bain Capital Life Sciences Investors, LLCP Purchase1,463,000
May 20, 2026Bain Capital Life Sciences Investors, LLCP Purchase1,463,000
Mar 11, 2026WIRTJES SEAN MS Sale7,480
Mar 11, 2026Wilson John J. AddingtonS Sale9,603
Mar 10, 2026Spignesi Robert G. Jr.S Sale17,922
Feb 27, 2026RICCIARDI NATALE SM Exercise842
Feb 27, 2026RICCIARDI NATALE SM Exercise842
Feb 20, 2026WIRTJES SEAN MS Sale17,254
Feb 20, 2026Wilson John J. AddingtonS Sale5,403
Feb 19, 2026Spignesi Robert G. Jr.S Sale38,327
Feb 11, 2026WIRTJES SEAN MA Award97,000
Feb 11, 2026Wilson John J. AddingtonA Award74,000
Feb 11, 2026Spignesi Robert G. Jr.A Award528,000
Feb 11, 2026Wilson John J. AddingtonA Award147,000
Feb 11, 2026Spignesi Robert G. Jr.A Award264,000
Feb 11, 2026WIRTJES SEAN MA Award193,000
Feb 9, 2026Wilson John J. AddingtonS Sale4,610
Feb 9, 2026WIRTJES SEAN MS Sale6,027

The full Form 4 history is on the RPID company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.