Transaction #1900 · Form 4 · 0001380106-25-000190
RAPID MICRO BIOSYSTEMS, INC. · Exercise / conversion · Class A Common Stock
RAPID MICRO BIOSYSTEMS, INC. · Transacted October 17, 2025 · Filed October 21, 2025
What does this filing report?
An SEC Form 4 filing for RAPID MICRO BIOSYSTEMS, INC. records an exercise / conversion involving Class A Common Stock on October 17, 2025. The reported quantity was 7,833. The filing date is October 21, 2025. This is one transaction record; amounts are not allocated among any joint reporting owners.
The acquisition category describes how securities were received. It does not by itself establish a cash purchase of common stock. Read the transaction code definitionsand the original filing before interpreting the amounts.
Transaction details
- Company
- RAPID MICRO BIOSYSTEMS, INC.
- Company CIK
- 0001380106
- Security type
- Non-derivative
- Acquisition type
- Exercise / conversion · Code M
- Quantity acquired
- 7,833
- Reported price
- 0.75
- Reference value
- 5,874.75
- Currency
- Currency not specified
- Ownership
- Direct
- Holdings after transaction
- 979,711
- Ownership description
- Not reported
- SEC acceptance time
- Oct 21, 2025, 5:46 PM EDT
- 10b5-1 indication
- Not indicated
Reference value is reported quantity × reported price. It is not a confirmed cash payment or an estimate of a derivative's economic value. A missing currency is not assumed to be USD.
Reporting owners
- Spignesi Robert G. Jr. ↗
PRESIDENT AND CEO · Director
CIK 0001853904
These are the reporting owners named in the filing. Quantities and amounts are not allocated among co-reporters. Roles reflect this filing, not a current profile.
Company listings
This transaction is not mapped to a specific company listing.
Filing footnotes & remarks
- F1
- Represents a "net exercise" of outstanding stock options. The reporting person received 1,328 shares of common stock on net exercise of option to purchase 3,400 shares of common stock. The Company withheld 2,072 shares of common stock underlying the option for payment of the exercise price and tax withholdings, using the closing stock price on October 17, 2025 of $3.08, pursuant to the terms of the 2010 Stock Option and Grant Plan.
- F2
- Represents a "net exercise" of outstanding stock options. The reporting person received 3,059 shares of common stock on net exercise of option to purchase 7,833 shares of common stock. The Company withheld 4,774 shares of common stock underlying the option for payment of the exercise price and tax withholdings, using the closing stock price on October 17, 2025 of $3.08, pursuant to the terms of the 2010 Stock Option and Grant Plan.
- F3
- The option is fully vested and exercisable.
Footnotes are reproduced as plain text from the current source filing. For the full context, read the original SEC filing.
This record was updated Eastern Time. This is the stored record update time, not the transaction date. Report a correction.