Sean M Wirtjes sold $23k of RPID
CHIEF FINANCIAL OFFICER at RAPID MICRO BIOSYSTEMS, INC.. 6,027 shares at an average of $3.78, traded Feb 9, 2026, filed Feb 10, 2026.
Score components
- +22RoleCFO
- 0Trade size$23k at market
- 0Share of holdings soldSold 1.2% of holdings
- +15Cluster4 insiders selling within 14 days
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
This signal so far: 1m -16.1%, 3m -36.8%, 6m -58.6%.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001289733-26-000004, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Feb 9, 2026 | SOpen-market sale Class A Common Stock | -6,027 | $3.78 | $23k | 483,928 | Feb 10, 2026 |
Related signals
Other insiders at RAPID MICRO BIOSYSTEMS, INC. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 42Moderate | RAPID MICRO BIOSYSTEMS, INC. | Sean M Wirtjes CHIEF FINANCIAL OFFICER | $32k 7,480 shares | -1% | |
| 48Moderate | RAPID MICRO BIOSYSTEMS, INC. | Robert G. Spignesi Jr. PRESIDENT AND CEO | $74k 17,922 shares | -2% | |
| 41Moderate | RAPID MICRO BIOSYSTEMS, INC. | John J. Addington Wilson CHIEF OPERATING OFFICER | $41k 9,603 shares | -3% | |
| 45Moderate | RAPID MICRO BIOSYSTEMS, INC. | Sean M Wirtjes CHIEF FINANCIAL OFFICER | $68k 17,254 shares | -3% | |
| 51Moderate | RAPID MICRO BIOSYSTEMS, INC. | Robert G. Spignesi Jr. PRESIDENT AND CEO | $149k 38,327 shares | -3% | |
| 35Weak | RAPID MICRO BIOSYSTEMS, INC. | John J. Addington Wilson CHIEF OPERATING OFFICER | $21k 5,403 shares | -2% | |
| 47Moderate | RAPID MICRO BIOSYSTEMS, INC. | Robert G. Spignesi Jr. PRESIDENT AND CEO | $49k 12,840 shares | -1% | |
| 35Weak | RAPID MICRO BIOSYSTEMS, INC. | John J. Addington Wilson CHIEF OPERATING OFFICER | $17k 4,610 shares | -2% | |
| 59Moderate | RAPID MICRO BIOSYSTEMS, INC. | Longitude Capital Partners II, LLC owner | $190k 49,000 shares | -100% | |
| 29Weak | RPIDsell RAPID MICRO BIOSYSTEMS, INC. | Longitude Capital Partners II, LLC owner | $474k 108,739 shares | -3% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.