Sean M Wirtjes insider trades: Rapid Micro Biosystems (RPID) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Sean reports to the SEC
Open-market buys and sales
18 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Mar 11, 2026 | RPID | ↓ Sell | 7,480 | $4.32 | $32K | Direct | Mar 12, 2026 (1d) |
| Feb 20, 2026 | RPID | ↓ Sell | 17,254 | $3.92 | $68K | Direct | Feb 20, 2026 (0d) |
| Feb 9, 2026 | RPID | ↓ Sell | 6,027 | $3.78 | $23K | Direct | Feb 10, 2026 (1d) |
| Aug 7, 2024 | RPID | ↑ Buy | 10,000 | $0.78 | $8K | Direct | Aug 8, 2024 (1d) |
| Sep 6, 2023 | RPID | ↑ Buy | 10,000 | $0.99 | $10K | Direct | Sep 8, 2023 (2d) |
| Jun 5, 2008 | VARI | ↓ Sell | 2,000 | $56.47 | $113K | Direct | Jun 6, 2008 (1d) |
| Apr 1, 2008 | VARI | ↓ Sell | 1,000 | $58.42 | $58K | Direct | Apr 3, 2008 (2d) |
| Mar 26, 2008 | VARI | ↓ Sell | 1,000 | $56.32 | $56K | Direct | Mar 28, 2008 (2d) |
| Feb 28, 2008 | VARI | ↓ Sell | 929 | $56.50 | $52K | Direct | Feb 29, 2008 (1d) |
| Feb 28, 2008 | VARI | ↓ Sell | 71 | $56.99 | $4K | Direct | Feb 29, 2008 (1d) |
| Jan 2, 2008 | VARI | ↓ Sell | 2,000 | $63.98 | $128K | Direct | Jan 4, 2008 (2d) |
| Dec 3, 2007 | VARI | ↓ Sell | 2,000 | $70.82 | $142K | Direct | Dec 5, 2007 (2d) |
| Nov 2, 2007 | VARI | ↓ Sell | 2,000 | $70.28 | $141K | Direct | Nov 5, 2007 (3d) |
| Mar 20, 2007 | VARI | ↓ Sell | 1,500 | $58.30 | $87K | Direct | Mar 21, 2007 (1d) |
| Mar 1, 2007 | VARI | ↓ Sell | 500 | $54.06 | $27K | Direct | Mar 5, 2007 (4d) |
| Feb 1, 2007 | VARI | ↓ Sell | 1,000 | $53.15 | $53K | Direct | Feb 2, 2007 (1d) |
| Jan 30, 2007 | VARI | ↓ Sell | 6,600 | $52.05 | $344K | Direct | Jan 31, 2007 (1d) |
| May 26, 2006 | VARI | ↓ Sell | 360 | $43.58 | $16K | Direct | May 30, 2006 (4d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other RPID insiders
Open-market trades in the last 12 months
About Sean M Wirtjes's insider trades
Sean M Wirtjes is Chief Financial Officer at Rapid Micro Biosystems (RPID). Since May 26, 2006, Sean has reported 2 open-market purchases worth $18K and 16 sales worth $1.3M on SEC Form 4. In the last 12 months: 3 sales ($123K).
Their filings also include option exercises (23 filings), shares withheld for taxes (12 filings), grants and awards (11 filings), shares returned to the company (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every RPID insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.