Spignesi Robert G. Jr. sold RPID
October 17, 2025 · Form 4 insider transaction
Spignesi Robert G. Jr. sold 4,774 shares of Rapid Micro Biosystems, Inc. at $3.08 per share, a transaction worth $14.7K. The trade was recorded as shares withheld for taxes and disclosed on an SEC Form 4, filed 4 days after the transaction.
Direction
Disposed (sell-side)
Shares
4,774
Price
$3.08
Total value
$14.7K
InsiderSpignesi Robert G. Jr.
Role—
SecurityClass A Common Stock
Transaction codeF: Shares withheld for taxes
Transaction dateOctober 17, 2025
Filing dateOctober 21, 2025
Shares owned after974,937
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
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.