Senior insider sale
President and CEO at RAPID MICRO BIOSYSTEMS, INC. — senior position signals high conviction
$271.2K
69.09K shares
What this filing means
SPIGNESI ROBERT G. JR. plans to sell 69.09K shares of RAPID MICRO BIOSYSTEMS, INC. valued at approximately $271.2K. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.
Filed: 3/10/2026ACC: 0001959173-26-002169
DirectorOfficer· President and CEO
Since Jul 2021
69.09K
Shares to sell
$271.2K
Approx. market value
17.92K
Acquired (3 months)
1
Planned
2 completed
Securities Acquired — Last 3 Months1
Restricted Stock Vesting
Compensation
3/9/2026
17.92KTotal acquired17.92K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
3/9/2026 | Restricted Stock Vesting Compensation | 17.92K | — |
| Total | 17.92K | ||
Planned & Completed Dispositions3
Completed
—Completed
Units to sell
38.33K
Market value
$148.9K
2/19/2026
—Completed
Units to sell
12.84K
Market value
$48.6K
2/9/2026
Planned — Approximate Date
NASDAQPlanned
Units to sell
17.92K
Market value
$73.7K
3/10/2026
Total
Units
69.09K
Value
$271.2K
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
2/19/2026 | 38.33K | $148.9K | — | Completed |
2/9/2026 | 12.84K | $48.6K | — | Completed |
| Planned — Approximate Date | ||||
3/10/2026 | 17.92K | $73.7K | NASDAQ | Planned |
| Total | 69.09K | $271.2K | ||