SEC Form 4 · accession 0001415666-26-000008
RAPID MICRO BIOSYSTEMS, INC. · RPID
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Richard S Kollender
Director
Period of report
Jul 24, 2026
Accepted (ET)
Jul 24, 2026 · 6:31 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001380106
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Class A Common Stock | Jul 24, 2026 | M | 1,681 | $0.75 | A | 131,999 | D | |
| Class A Common Stock | Jul 24, 2026 | M | 1,827 | $0.75 | A | 133,826 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock Option (Right to Buy)F1 | $0.75 | Jul 24, 2026 | M | 1,681 | D | — | Aug 11, 2026 | Class A Common Stock | 1,681 | 0 | D |
| Stock Option (Right to Buy)F1 | $0.75 | Jul 24, 2026 | M | 1,827 | D | — | Aug 11, 2026 | Class A Common Stock | 1,827 | 0 | D |
Explanation of responses
- F1The option is fully vested and exercisable.