Form 4: Rapid Micro Biosystems CEO Reports Stock Transaction
Insider Transaction (Form 4)
Robert G. Spignesi Jr., PRESIDENT AND CEO and a Director of Rapid Micro Biosystems, Inc., reported multiple transactions in common stock on July 22, 2026.
Summary
- Option exercise/conversion: acquired 1,402 Class A Common Stock at $0.75 ($1,052) on July 22, 2026; holds 1,191,973 after (Direct).
- Option exercise/conversion: disposed of 1,402 Stock Option (Right to Buy) on July 22, 2026 (Direct).
Sentiment
Score: 5
Explanation: StockSavvy.ai views this as routine: the reported changes are grants, option exercises, tax withholding or similar administrative transactions, which carry limited directional signal.
Insider Transactions
Robert G. Spignesi Jr. — Director, Officer (PRESIDENT AND CEO)
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-07-22 | Option exercise/conversion | Class A Common Stock | 1,402 | $1 | $1.1K | 1,191,973 |
| 2026-07-22 | Option exercise/conversion | Stock Option (Right to Buy) | 1,402 | — | — | 0 |
Key Dates
| Date | Description |
|---|---|
| 2026-07-22 | Option exercise/conversion (1,402 shares) |
| 2026-07-22 | Option exercise/conversion (1,402 shares) |
Keywords
insider transaction, Form 4, RPID, RAPID MICRO BIOSYSTEMS, INC., neutral, Robert G. Spignesi Jr.
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