RAPID MICRO BIOSYSTEMS, INC. insider trading
RPID$0.98+0.06 (+6.09% today)
“Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise.”
Insider Trading vs Stock Price
Insider Trading vs Stock Price data
Showing the 1Y range: Oct 6, 2025 to Oct 5, 2026. Price (-73.6%). 0 insider transactions plotted in this window as 0 markers; nearby trades of the same kind are grouped.
| Date | Category | Person | Role | Action | Amount | Change in holding |
|---|
Open market purchase
Open market sellNet dollar flow · Buy / Sell balance
PremiumQ4 '24Q1 '25Q2 '25Q3 '25Q4 '25Q1 '26
Unlock quarterly net flowKey players
- SRSpignesi Robert G. Jr.2.6105%
- SMSean M. Wirtjes1.2461%
- WJWilson John J. Addington0.6937%
- RSRichard S. Kollender0.2931%
- MLMelinda Litherland Pei0.2205%
- KMKirk Malloy0.1548%
- ILInese Lowenstein0.1548%
- NSNatale S. Ricciardi0.0645%
- DBDafni Bika0.0423%
- LVLongitude Venture Partners II, L.P.Not reported
AI Activity Analysis
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Insider activity
Fromto
| Company | Insider / role | Action | ΔOwn | Avg price | Amount | ||
|---|---|---|---|---|---|---|---|
| RPID | Wilson John J. Addington | Open market sell$41.5K | -2.9% | $4.32 | $41.5K | Mar 11, 2026 | Mar 12, 2026 |
| RPID | Sean M. Wirtjes | Open market sell$32.3K | -1.3% | $4.32 | $32.3K | Mar 11, 2026 | Mar 12, 2026 |
| RPID | Spignesi Robert G. Jr. | Open market sell$73.7K | -1.5% | $4.11 | $73.7K | Mar 10, 2026 | Mar 12, 2026 |
| RPID | Wilson John J. Addington | Open market sell$21.2K | -1.6% | $3.92 | $21.2K | Feb 20, 2026 | Feb 20, 2026 |
| RPID | Sean M. Wirtjes | Open market sell$67.6K | -3.0% | $3.92 | $67.6K | Feb 20, 2026 | Feb 20, 2026 |
| RPID | Spignesi Robert G. Jr. | Open market sell$149K | -3.1% | $3.89 | $149K | Feb 19, 2026 | Feb 20, 2026 |
| RPID | Wilson John J. Addington | Open market sell$17.4K | -1.8% | $3.78 | $17.4K | Feb 9, 2026 | Feb 10, 2026 |
| RPID | Spignesi Robert G. Jr. | Open market sell$48.5K | -1.3% | $3.78 | $48.5K | Feb 9, 2026 | Feb 10, 2026 |
| RPID | Sean M. Wirtjes | Open market sell$22.8K | -1.2% | $3.78 | $22.8K | Feb 9, 2026 | Feb 10, 2026 |
| RPID | Longitude Venture Partners II, L.P. | Open market sell$190K | -1.2% | $3.88 | $190K | Feb 4, 2026 | Feb 6, 2026 |
| RPID | Longitude Prime Partners, LLC | Open market sell$117K | -0.7% | $4.24 | $117K | Feb 3, 2026 | Feb 3, 2026 |
| RPID | Longitude Prime Partners, LLC | Open market sell$117K | -0.7% | $4.25 | $117K | Feb 2, 2026 | Feb 3, 2026 |
| RPID | Longitude Prime Partners, LLC | Open market sell$209K | -1.1% | $4.54 | $209K | Jan 30, 2026 | Feb 3, 2026 |
| RPID | Longitude Prime Partners, LLC | Open market sell$31.4K | -0.2% | $4.06 | $31.4K | Jan 23, 2026 | Feb 3, 2026 |