Robert G. Spignesi Jr. 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 Robert reports to the SEC
Open-market buys and sales
10 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Mar 10, 2026 | RPID | ↓ Sell | 17,922 | $4.11 | $74K | Direct | Mar 12, 2026 (2d) |
| Feb 19, 2026 | RPID | ↓ Sell | 38,327 | $3.89 | $149K | Direct | Feb 20, 2026 (1d) |
| Feb 9, 2026 | RPID | ↓ Sell | 12,840 | $3.78 | $49K | Direct | Feb 10, 2026 (1d) |
| Jul 14, 2025 | RPID | ↓ Sell | 23,755 | $3.32 | $79K | Direct | Jul 15, 2025 (1d) |
| Jul 10, 2025 | RPID | ↓ Sell | 33,688 | $3.47 | $117K | Direct | Jul 10, 2025 (0d) |
| Aug 6, 2024 | RPID | ↑ Buy | 50,000 | $0.77 | $38K | Direct | Aug 7, 2024 (1d) |
| Aug 15, 2023 | RPID | ↑ Buy | 20,000 | $0.97 | $19K | Direct | Aug 16, 2023 (1d) |
| Aug 8, 2023 | RPID | ↑ Buy | 34,000 | $0.92 | $31K | Direct | Aug 10, 2023 (2d) |
| May 17, 2023 | RPID | ↑ Buy | 20,000 | $0.91 | $18K | Direct | May 18, 2023 (1d) |
| May 16, 2022 | RPID | ↑ Buy | 10,000 | $3.79 | $38K | Direct | May 18, 2022 (2d) |
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 Robert G. Spignesi Jr.'s insider trades
Robert G. Spignesi Jr. is President and CEO at Rapid Micro Biosystems (RPID). Since May 16, 2022, Robert has reported 5 open-market purchases worth $145K and 5 sales worth $467K on SEC Form 4. In the last 12 months: 3 sales ($271K).
Their filings also include shares withheld for taxes (7 filings), grants and awards (6 filings), option exercises (5 filings). 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.