NEMSER EARL H

PrivateCIK: 1391400
Location

GREENWICH, CT

NEMSER EARL H (Vice Chairman) sold 3.5% of their position (25.68K shares) of INTERACTIVE BROKERS GROUP, INC. on the open market

Open‑market sale worth $1.65M — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 3 sales
InsiderNEMSER EARL HCIK 1391400
DirectorOfficer· Vice Chairman
Since Dec 2018
-25.68K
Net shares
Net seller
$1.65M
Total sold
3
Open market trades
0B · 3S
3
Total transactions
25.68K disposed
Non-Derivative Transactions3

Class A common stock

Indirect
S · Sale

Shares

12.84K

Price / share

$64.54

Trade value

$828.76K

% of position

1.8%
8/4/2025
732.63K719.79K

Class A common stock

Indirect
S · Sale

Shares

11.04K

Price / share

$63.64

Trade value

$702.65K

% of position

1.5%
8/5/2025
719.79K708.75K

Class A common stock

Indirect
S · Sale

Shares

1.80K

Price / share

$64.84

Trade value

$116.71K

% of position

0.3%
8/5/2025
708.75K706.95K
Total

Net shares

25.68K

Net value

-$1.65M

Derivative Transactions0
No derivative transactions reported
Non-Derivative Holdings (Post-Transaction)1

Class A common stock

Direct
Shares owned427.81K
Total
427.81K direct427.81K
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
NEMSER EARL H — Insider Transaction (Form 4) Filed Aug 6, 2025 | Finecho