NEMSER EARL H

PrivateCIK: 1391400
Location

GREENWICH, CT

NEMSER EARL H (Vice Chairman) sold 155K shares of INTERACTIVE BROKERS GROUP, INC. on the open market

Open‑market sale worth $11.76M. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 5 sales
InsiderNEMSER EARL HCIK 1391400
DirectorOfficer· Vice Chairman
Since Dec 2018
-155K
Net shares
Net seller
$11.76M
Total sold
5
Open market trades
0B · 5S
5
Total transactions
155K disposed
Non-Derivative Transactions5

Class A common stock

Indirect
S · Sale

Shares

60.88K

Price / share

$75.83

Trade value

$4.62M

% of position

39.3%
1/26/2026
155K94.12K

Class A common stock

Indirect
S · Sale

Shares

30.82K

Price / share

$76.72

Trade value

$2.36M

% of position

32.7%
1/26/2026
94.12K63.30K

Class A common stock

Indirect
S · Sale

Shares

3.10K

Price / share

$77.98

Trade value

$241.82K

% of position

4.9%
1/26/2026
63.30K60.20K

Class A common stock

Indirect
S · Sale

Shares

39.73K

Price / share

$75.07

Trade value

$2.98M

% of position

66.0%
1/27/2026
60.20K20.47K

Class A common stock

Indirect
S · Sale

Shares

20.47K

Price / share

$75.75

Trade value

$1.55M

% of position

New position
1/27/2026
20.47K0.00
Total

Net shares

155K

Net value

-$11.76M

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

Class A common stock

Direct
Shares owned451.83K
Total
451.83K direct451.83K
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
NEMSER EARL H — Insider Transaction (Form 4) Filed Jan 28, 2026 | Finecho