RPID insider trading — Rapid Micro Biosystems, Inc.
No open-market insider purchases or sales were filed for Rapid Micro Biosystems, Inc. (RPID) in the last 90 days. Other insider transactions — such as stock awards, option exercises or tax withholding — are listed below.
Updated Oct 16, 2026.
Recent RPID insider transactions
Every Form 4 filed by Rapid Micro Biosystems, Inc. officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Jul 24, 2026 | Kollender Richard S | Director | M · Option exercise | Direct | 3,508 | $0.75 | $3K | Form 4 |
| Jul 22, 2026 | Spignesi Robert G. Jr. | PRESIDENT AND CEO | M · Option exercise | Direct | 1,402 | $0.75 | $1K | Form 4 |
RPID insider trading FAQ
Are insiders buying RPID stock?
Not on the open market. In the last 90 days, Rapid Micro Biosystems, Inc. insiders made no open-market purchases, and no open-market sales. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading RPID?
No insider bought or sold on the open market in the last 90 days.
Where does RPID insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.