POSNER BRIAN S

PrivateCIK: 1372455
Location

CAMBRIDGE, MA

POSNER BRIAN S sold 60.0% of their position (3K shares) of ARCH CAPITAL GROUP LTD. on the open market

Open‑market sale worth $51.3K — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderPOSNER BRIAN SCIK 1372455
IssuerARCH CAPITAL GROUP LTD.CIK 947484
Director
Since Nov 2018
-3K
Net shares
Net seller
$51.3K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
3K disposed
Non-Derivative Transactions1

Depositary Shares, Series G

Direct
S · Sale

Shares

3K

Price / share

$17.11

Trade value

$51.34K

% of position

60.0%
3/11/2026
5K2K
Total

Net shares

3K

Net value

-$51.34K

Derivative Transactions0
No derivative transactions reported
Non-Derivative Holdings (Post-Transaction)2

Depositary Shares, Series F

Direct
Shares owned3K

Common Shares, $.0011 par value per share

Direct
Shares owned120.10K
Total
123.10K direct123.10K
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
POSNER BRIAN S — Insider Transaction (Form 4) Filed Mar 12, 2026 | Finecho