WIRTJES SEAN M

PrivateCIK: 1289733
Location

PALO ALTO, CA

WIRTJES SEAN M (Chief Financial Officer) sold 1.2% of their position (6.03K shares) of RAPID MICRO BIOSYSTEMS, INC. on the open market

Open‑market sale worth $22.8K — 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
-6.03K
Net shares
Net seller
$22.8K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
6.03K disposed
Non-Derivative Transactions1

Class A Common Stock

Direct
S · Sale

Shares

6.03K

Price / share

$3.78

Trade value

$22.80K

% of position

1.2%
2/9/2026
489.95K483.93K
Total

Net shares

6.03K

Net value

-$22.80K

Derivative Transactions0
No derivative transactions reported
WIRTJES SEAN M — Insider Transaction (Form 4) Filed Feb 10, 2026 | Finecho