Form 4: Rapid Micro Biosystems Director Reports Stock Transaction
Insider Transaction (Form 4)
Richard S Kollender, a Director of Rapid Micro Biosystems, Inc., reported multiple transactions in common stock on July 24, 2026.
Summary
- Option exercise/conversion: acquired 1,681 Class A Common Stock at $0.75 ($1,261) on July 24, 2026; holds 131,999 after (Direct).
- Option exercise/conversion: acquired 1,827 Class A Common Stock at $0.75 ($1,370) on July 24, 2026; holds 133,826 after (Direct).
- Option exercise/conversion: disposed of 1,681 Stock Option (Right to Buy) on July 24, 2026 (Direct).
- Option exercise/conversion: disposed of 1,827 Stock Option (Right to Buy) on July 24, 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
Richard S Kollender — Director
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-07-24 | Option exercise/conversion | Class A Common Stock | 1,681 | $1 | $1.3K | 131,999 |
| 2026-07-24 | Option exercise/conversion | Class A Common Stock | 1,827 | $1 | $1.4K | 133,826 |
| 2026-07-24 | Option exercise/conversion | Stock Option (Right to Buy) | 1,681 | — | — | 0 |
| 2026-07-24 | Option exercise/conversion | Stock Option (Right to Buy) | 1,827 | — | — | 0 |
Key Dates
| Date | Description |
|---|---|
| 2026-07-24 | Option exercise/conversion (1,681 shares) |
| 2026-07-24 | Option exercise/conversion (1,827 shares) |
| 2026-07-24 | Option exercise/conversion (1,681 shares) |
| 2026-07-24 | Option exercise/conversion (1,827 shares) |
Keywords
insider transaction, Form 4, RPID, RAPID MICRO BIOSYSTEMS, INC., neutral, Richard S Kollender
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