Rapid Micro Biosystems, Inc. also files under [RPID]; those filings are included. Filings under RPID by Rapid Link Inc (CIK 0000913659) from Aug 10, 2007 to Jun 7, 2010 belong to a different issuer and are not shown.
The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 24, 2026 | Kollender Richard S | Director | Option exercise(M) | 2K | — | $0 |
| Jul 24, 2026 | Kollender Richard S | Director | Option exercise(M) | 2K | — | $0 |
| Jul 24, 2026 | Kollender Richard S | Director | Option exercise(M) | 2K | $0.75 | $1K |
| Jul 24, 2026 | Kollender Richard S | Director | Option exercise(M) | 2K | $0.75 | $1K |
| Jul 22, 2026 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Option exercise(M) | 1K | $0.75 | $1K |
| Jul 22, 2026 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Option exercise(M) | 1K | — | $0 |
| May 29, 2026 | Lowenstein Inese | Director | Grant(A) | 13K | — | $0 |
| May 29, 2026 | Wirtjes Sean M | CHIEF FINANCIAL OFFICER | Grant(A) | 13K | $1.96 | $25K |
| May 29, 2026 | Wirtjes Sean M | CHIEF FINANCIAL OFFICER | Grant(A) | 13K | — | $0 |
| May 29, 2026 | Malloy Kirk | Director | Grant(A) | 13K | — | $0 |
| May 29, 2026 | Pei Melinda Litherland | Director | Grant(A) | 13K | — | $0 |
| May 29, 2026 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Grant(A) | 13K | $1.96 | $25K |
| May 29, 2026 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Grant(A) | 13K | — | $0 |
| May 29, 2026 | Lowenstein Inese | Director | Grant(A) | 13K | $1.96 | $25K |
| May 29, 2026 | Malloy Kirk | Director | Grant(A) | 13K | — | $0 |
| May 29, 2026 | Pei Melinda Litherland | Director | Grant(A) | 13K | — | $0 |
| May 29, 2026 | Lowenstein Inese | Director | Grant(A) | 13K | — | $0 |
| May 29, 2026 | Pei Melinda Litherland | Director | Grant(A) | 13K | $1.96 | $25K |
| May 29, 2026 | Wirtjes Sean M | CHIEF FINANCIAL OFFICER | Grant(A) | 13K | — | $0 |
| May 29, 2026 | Malloy Kirk | Director | Grant(A) | 13K | $1.96 | $25K |
| May 29, 2026 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Grant(A) | 13K | — | $0 |
| May 21, 2026 | Lowenstein Inese | Director | Grant(A) | 19K | — | $0 |
| May 21, 2026 | Lowenstein Inese | Director | Grant(A) | 39K | — | $0 |
| May 21, 2026 | Pei Melinda Litherland | Director | Grant(A) | 19K | — | $0 |
| May 21, 2026 | Malloy Kirk | Director | Grant(A) | 19K | — | $0 |
| May 21, 2026 | Bika Dafni | Director | Grant(A) | 19K | — | $0 |
| May 21, 2026 | Kollender Richard S | Director | Grant(A) | 19K | — | $0 |
| May 21, 2026 | Malloy Kirk | Director | Grant(A) | 39K | — | $0 |
| May 21, 2026 | Pei Melinda Litherland | Director | Grant(A) | 39K | — | $0 |
| May 21, 2026 | Kollender Richard S | Director | Grant(A) | 39K | — | $0 |
| May 21, 2026 | Bika Dafni | Director | Grant(A) | 39K | — | $0 |
| May 20, 2026 | Bain Capital Life Sciences Investors, LLC | 10% Owner | Buy(P) | 1.5M | — | — |
| May 20, 2026 | Bain Capital Life Sciences Investors, LLC | 10% Owner | Buy(P) | 1.5M | — | — |
| May 20, 2026 | Bain Capital Life Sciences Investors, LLC | 10% Owner | Buy(P) | 1.5M | — | — |
| Mar 11, 2026 | Wirtjes Sean M | CHIEF FINANCIAL OFFICER | Sell(S) | 7K | $4.32 | $32K |
| Mar 11, 2026 | Wilson John J. Addington | CHIEF OPERATING OFFICER | Sell(S) | 10K | $4.32 | $41K |
| Mar 10, 2026 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Sell(S) | 18K | $4.11 | $74K |
| Feb 27, 2026 | Ricciardi Natale S | Director | Option exercise(M) | 842 | $0.75 | $632 |
| Feb 27, 2026 | Ricciardi Natale S | Director | Option exercise(M) | 842 | $0.75 | $632 |
| Feb 20, 2026 | Wirtjes Sean M | CHIEF FINANCIAL OFFICER | Sell(S) | 17K | $3.92 | $68K |
| Feb 20, 2026 | Wilson John J. Addington | CHIEF OPERATING OFFICER | Sell(S) | 5K | $3.92 | $21K |
| Feb 19, 2026 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Sell(S) | 38K | $3.89 | $149K |
| Feb 11, 2026 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Grant(A) | 528K | — | $0 |
| Feb 11, 2026 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Grant(A) | 264K | — | $0 |
| Feb 11, 2026 | Wilson John J. Addington | CHIEF OPERATING OFFICER | Grant(A) | 147K | — | $0 |
| Feb 11, 2026 | Wilson John J. Addington | CHIEF OPERATING OFFICER | Grant(A) | 74K | — | $0 |
| Feb 11, 2026 | Wirtjes Sean M | CHIEF FINANCIAL OFFICER | Grant(A) | 193K | — | $0 |
| Feb 11, 2026 | Wirtjes Sean M | CHIEF FINANCIAL OFFICER | Grant(A) | 97K | — | $0 |
| Feb 9, 2026 | Wilson John J. Addington | CHIEF OPERATING OFFICER | Sell(S) | 5K | $3.78 | $17K |
| Feb 9, 2026 | Wirtjes Sean M | CHIEF FINANCIAL OFFICER | Sell(S) | 6K | $3.78 | $23K |
| Feb 9, 2026 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Sell(S) | 13K | $3.78 | $49K |
| Feb 4, 2026 | Longitude Venture Partners II, L.P. | 10% Owner | Sell(S) | 49K | $3.88 | $190K |
| Feb 3, 2026 | Longitude Prime Partners, LLC | 10% Owner | Sell(S) | 28K | $4.24 | $117K |
| Feb 2, 2026 | Longitude Prime Partners, LLC | 10% Owner | Sell(S) | 28K | $4.25 | $117K |
| Jan 30, 2026 | Longitude Prime Partners, LLC | 10% Owner | Sell(S) | 46K | $4.54 | $209K |
| Jan 23, 2026 | Longitude Prime Partners, LLC | 10% Owner | Option exercise(X) | 629K | $0.05 | $31K |
| Jan 23, 2026 | Longitude Prime Partners, LLC | 10% Owner | Option exercise(X) | 500K | — | $0 |
| Jan 23, 2026 | Longitude Prime Partners, LLC | 10% Owner | Sell(S) | 8K | $4.06 | $31K |
| Jan 23, 2026 | Longitude Prime Partners, LLC | 10% Owner | Option exercise(X) | 129K | — | $0 |
| Nov 14, 2025 | Malloy Kirk | Director | Gift(G) | 40K | — | $0 |
| Oct 17, 2025 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Option exercise(M) | 8K | — | $0 |
| Oct 17, 2025 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Option exercise(M) | 3K | — | $0 |
| Oct 17, 2025 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Option exercise(M) | 3K | $0.75 | $3K |
| Oct 17, 2025 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Tax withholding(F) | 2K | $3.08 | $6K |
| Oct 17, 2025 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Option exercise(M) | 8K | $0.75 | $6K |
| Oct 17, 2025 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Tax withholding(F) | 5K | $3.08 | $15K |
| Jul 14, 2025 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Sell(S) | 12K | $3.32 | $39K |
| Jul 14, 2025 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Option exercise(M) | 25K | — | $0 |
| Jul 11, 2025 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Sell(S) | 12K | $3.33 | $40K |
| Jul 11, 2025 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Option exercise(M) | 25K | — | $0 |
| Jul 10, 2025 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Option exercise(M) | 25K | — | $0 |
| Jul 10, 2025 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Sell(S) | 12K | $3.40 | $39K |
| Jul 9, 2025 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Option exercise(M) | 25K | — | $0 |
| Jul 9, 2025 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Sell(S) | 11K | $3.51 | $39K |
| Jul 8, 2025 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Sell(S) | 11K | $3.51 | $38K |
| Jul 8, 2025 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Option exercise(M) | 25K | — | $0 |
| May 22, 2025 | Lowenstein Inese | Director | Grant(A) | 29K | — | $0 |
| May 22, 2025 | Pei Melinda Litherland | Director | Grant(A) | 14K | — | $0 |
| May 22, 2025 | Bika Dafni | Director | Grant(A) | 50K | — | $0 |
| May 22, 2025 | Kollender Richard S | Director | Grant(A) | 29K | — | $0 |
| May 22, 2025 | Lowenstein Inese | Director | Grant(A) | 14K | — | $0 |
| May 22, 2025 | Ricciardi Natale S | Director | Grant(A) | 14K | — | $0 |
| May 22, 2025 | Pei Melinda Litherland | Director | Grant(A) | 29K | — | $0 |
| May 22, 2025 | Kollender Richard S | Director | Grant(A) | 14K | — | $0 |
| May 22, 2025 | Malloy Kirk | Director | Grant(A) | 29K | — | $0 |
| May 22, 2025 | Malloy Kirk | Director | Grant(A) | 14K | — | $0 |
| May 22, 2025 | Ricciardi Natale S | Director | Grant(A) | 29K | — | $0 |
| Mar 9, 2025 | Wilson John J. Addington | CHIEF OPERATING OFFICER | Tax withholding(F) | 10K | $2.39 | $24K |
| Mar 9, 2025 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Tax withholding(F) | 11K | $2.39 | $25K |
| Mar 9, 2025 | Wirtjes Sean M | CHIEF FINANCIAL OFFICER | Tax withholding(F) | 8K | $2.39 | $18K |
| Feb 18, 2025 | Wirtjes Sean M | CHIEF FINANCIAL OFFICER | Grant(A) | 121K | — | $0 |
| Feb 18, 2025 | Wirtjes Sean M | CHIEF FINANCIAL OFFICER | Grant(A) | 160K | — | $0 |
| Feb 18, 2025 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Grant(A) | 290K | — | $0 |
| Feb 18, 2025 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Grant(A) | 365K | — | $0 |
| Feb 18, 2025 | Wilson John J. Addington | CHIEF OPERATING OFFICER | Grant(A) | 89K | — | $0 |
| Feb 18, 2025 | Wilson John J. Addington | CHIEF OPERATING OFFICER | Grant(A) | 44K | — | $0 |
| Feb 11, 2025 | Wilson John J. Addington | CHIEF OPERATING OFFICER | Tax withholding(F) | 7K | $2.68 | $19K |
| Feb 11, 2025 | Wirtjes Sean M | CHIEF FINANCIAL OFFICER | Tax withholding(F) | 5K | $2.68 | $12K |
| Feb 11, 2025 | Spignesi Robert G. Jr. | PRESIDENT AND CEO, Director | Tax withholding(F) | 11K | $2.68 | $29K |
| Feb 6, 2025 | Wilson John J. Addington | CHIEF OPERATING OFFICER | Tax withholding(F) | 5K | $3.10 | $14K |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Issuer: Rapid Micro Biosystems, Inc., SEC CIK 0001380106. The symbol on a Form 4 is typed by the filer, so this page follows the issuer with the newest filing under RPID and shows every filing by that issuer (also filed as [RPID]). Earlier filings under the same symbol by another issuer are left out.
Coverage: Form 4 filings indexed 2006-01-02 → 2026-09-12. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).
Connected pages for RPID