WIRTJES SEAN M

PrivateCIK: 1289733
Location

PALO ALTO, CA

WIRTJES SEAN M (Chief Financial Officer) sold 3.0% of their position (17.25K shares) of RAPID MICRO BIOSYSTEMS, INC. on the open market

Open‑market sale worth $67.7K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderWIRTJES SEAN MCIK 1289733
Officer· Chief Financial Officer
Since Jul 2021
-17.25K
Net shares
Net seller
$67.7K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
17.25K disposed
Non-Derivative Transactions1

Class A Common Stock

Direct
S · Sale

Shares

17.25K

Price / share

$3.92

Trade value

$67.69K

% of position

3.0%
2/20/2026
580.93K563.67K
Total

Net shares

17.25K

Net value

-$67.69K

Derivative Transactions0
No derivative transactions reported
WIRTJES SEAN M — Insider Transaction (Form 4) Filed Feb 20, 2026 | Finecho