Rapid Micro Biosystems (RPID) director exercises options for 3,508 shares
Rhea-AI Filing Summary
Rapid Micro Biosystems, Inc. director Richard S. Kollender reported exercising stock options covering a total of 3,508 shares of Class A Common Stock on 2026-07-24. The options, described as fully vested and exercisable, were exercised at an exercise price of $0.7500 per share in two tranches of 1,681 and 1,827 underlying shares.
Positive
- None.
Negative
- None.
Insider Trade Summary
Net Buyer: 3,508 shares
Net Buy
4 txns
Insider
Kollender Richard S
Role
Director
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Stock Option (Right to Buy) F1 | 1,681 | $0.00 | $0.00 |
| Exercise | Stock Option (Right to Buy) F1 | 1,827 | $0.00 | $0.00 |
| Exercise | Class A Common Stock | 1,681 | $0.75 | $1K |
| Exercise | Class A Common Stock | 1,827 | $0.75 | $1K |
Holdings After Transaction:
Stock Option (Right to Buy) — 0 shares (Direct);
Class A Common Stock — 133,826 shares (Direct)
Footnotes (1)
- F1. The option is fully vested and exercisable.
Key Figures
Options exercised: 3508 shares
First option tranche: 1681 shares
Second option tranche: 1827 shares
+2 more
5 metrics
Options exercised
3508 shares
Total underlying Class A Common Stock from options exercised on 2026-07-24
First option tranche
1681 shares
Underlying Class A Common Stock from one Stock Option (Right to Buy) exercise
Second option tranche
1827 shares
Underlying Class A Common Stock from the second Stock Option (Right to Buy) exercise
Exercise price
$0.7500 per share
Conversion or exercise price for the Stock Option (Right to Buy) positions
Option expiration date
2026-08-11
Expiration date for the exercised stock options
Key Terms
Stock Option (Right to Buy), Class A Common Stock, Exercise or conversion of derivative security, fully vested and exercisable
4 terms
Stock Option (Right to Buy) financial
"Transaction security title is Stock Option (Right to Buy)"
Class A Common Stock financial
"Underlying security title is Class A Common Stock"
Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.
Exercise or conversion of derivative security financial
"Transaction code M is described as Exercise or conversion of derivative security"
fully vested and exercisable financial
"A footnote states the option is fully vested and exercisable"
AI-generated analysis. How Rhea-AI works. Not financial advice.
FAQ
What insider transaction did Richard S. Kollender report for RPID?
Richard S. Kollender, a director of Rapid Micro Biosystems (RPID), reported exercising stock options on 2026-07-24. The transactions converted options into 3,508 shares of Class A Common Stock through two separate exercises disclosed in the Form 4 data.
What type of securities were involved in Richard Kollender’s RPID insider transaction?
The transactions involved Stock Option (Right to Buy) derivative securities that converted into Class A Common Stock. Two option positions were exercised, each delivering the same number of underlying shares as the options exercised, at a stated exercise price of $0.7500 per share.
Were the options exercised by the RPID director fully vested?
Yes. A footnote states that the option is fully vested and exercisable. This note applies to the reported option positions that were exercised, indicating there were no remaining vesting conditions at the time of the 2026-07-24 exercises.
When did the Rapid Micro Biosystems options exercised by Kollender expire?
For the exercised options, the Form 4 data shows an expiration date of 2026-08-11. These options were exercised on 2026-07-24, ahead of that expiration date, converting them into shares of Class A Common Stock at the stated exercise price.