Spignesi Robert G. Jr. 4
4 · RAPID MICRO BIOSYSTEMS, INC. · Filed Oct 21, 2025
Insider Transaction Report
Form 4
Spignesi Robert G. Jr.
DirectorPRESIDENT AND CEO
Transactions
- Exercise/Conversion
Class A Common Stock
2025-10-17$0.75/sh+3,400$2,550→ 973,950 total - Exercise/Conversion
Stock Option (Right to Buy)
2025-10-17−3,400→ 0 totalExercise: $0.75Exp: 2025-10-22→ Class A Common Stock (3,400 underlying) - Tax Payment
Class A Common Stock
2025-10-17$3.08/sh−4,774$14,704→ 974,937 total - Tax Payment
Class A Common Stock
2025-10-17$3.08/sh−2,072$6,382→ 971,878 total - Exercise/Conversion
Class A Common Stock
2025-10-17$0.75/sh+7,833$5,875→ 979,711 total - Exercise/Conversion
Stock Option (Right to Buy)
2025-10-17−7,833→ 0 totalExercise: $0.75Exp: 2025-10-22→ Class A Common Stock (7,833 underlying)
Footnotes (3)
- [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.