Rapid Micro Biosystems, Inc (RPID) insider trading
Every open-market stock purchase and sale by Rapid Micro Biosystems, Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Insiders bought $3.4M over the last 12 months (1 buy).
- Insiders sold $1.1M over the last 12 months (11 sales).
- Last insider buy: Bain Capital Life Sciences Investors LLC (Insider), $3.4M, 4 months ago.
Last 12 months: insiders bought $3.4M (1 buy) and sold $1.1M (11 sales). Last close $1.99 on Jul 24, 2026.
Recent RPID insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Jul 24, 2026 | Richard S Kollender (Director) | Bought (not open market) | — |
| Jul 24, 2026 | Richard S Kollender (Director) | Bought (not open market) | — |
| Jul 22, 2026 | Robert G. Spignesi Jr. (CEO) | Bought (not open market) | — |
| May 29, 2026 | Robert G. Spignesi Jr. (CEO) | Bought (not open market) | — |
| May 29, 2026 | Sean M Wirtjes (CFO) | Bought (not open market) | — |
| May 29, 2026 | Inese Lowenstein (Director) | Bought (not open market) | — |
| May 29, 2026 | Melinda Litherland Pei (Director) | Bought (not open market) | — |
| May 29, 2026 | Kirk Malloy (Director) | Bought (not open market) | — |
| May 21, 2026 | Kirk Malloy (Director) | Bought (not open market) | — |
| May 21, 2026 | Kirk Malloy (Director) | Bought (not open market) | — |
| May 21, 2026 | Inese Lowenstein (Director) | Bought (not open market) | — |
| May 21, 2026 | Inese Lowenstein (Director) | Bought (not open market) | — |
| May 21, 2026 | Dafni Bika (Director) | Bought (not open market) | — |
| May 21, 2026 | Richard S Kollender (Director) | Bought (not open market) | — |
| May 21, 2026 | Melinda Litherland Pei (Director) | Bought (not open market) | — |
| May 21, 2026 | Richard S Kollender (Director) | Bought (not open market) | — |
| May 21, 2026 | Dafni Bika (Director) | Bought (not open market) | — |
| May 21, 2026 | Melinda Litherland Pei (Director) | Bought (not open market) | — |
| May 20, 2026 | Bain Capital Life Sciences Investors LLC (Insider) | Bought | $3.4M |
| Mar 11, 2026 | John J. Addington Wilson (COO) | Sold | $41.5K |
| Mar 11, 2026 | Sean M Wirtjes (CFO) | Sold | $32.3K |
| Mar 10, 2026 | Robert G. Spignesi Jr. (CEO) | Sold | $73.7K |
| Feb 27, 2026 | Natale S Ricciardi (Director) | Bought (not open market) | $632 |
| Feb 20, 2026 | Sean M Wirtjes (CFO) | Sold | $67.7K |
| Feb 20, 2026 | John J. Addington Wilson (COO) | Sold | $21.2K |
Who's trading RPID
- Richard S Kollender, Director: other filings, last Jul 24, 2026
- Robert G. Spignesi Jr., CEO: sold $271K (3 sales), last Jul 22, 2026
- Sean M Wirtjes, CFO: sold $123K (3 sales), last May 29, 2026
- Melinda Litherland Pei, Director: other filings, last May 29, 2026
- Inese Lowenstein, Director: other filings, last May 29, 2026
- Kirk Malloy, Director: other filings, last May 29, 2026
- Dafni Bika, Director: other filings, last May 21, 2026
- Bain Capital Life Sciences Investors LLC, Insider: bought $3.4M (1 buy), last May 20, 2026
- John J. Addington Wilson, COO: sold $80.1K (3 sales), last Mar 11, 2026
- Natale S Ricciardi, Director: other filings, last Feb 27, 2026
- Longitude Capital Partners II LLC, Insider: sold $664K (5 sales), last Feb 4, 2026
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