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$IBKR

$91.02 +$3.03 (3.44%)

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Valuations P Insider Transactions P Congressional Trades P

Insider Transactions

Insider Transaction Summary

Milan Galik

3,215,389 shares

Net: -925,688 B/S: ∞

Paul Jonathan Brody

2,856,806 shares

Net: -593,449 B/S: 0.1

Thomas Peterffy

1,516,182 shares

Net: 0 B/S: -

Earl H Nemser

429,344 shares

Net: -547,348 B/S: 0.04

Thomas AJ Frank

251,518 shares

Net: -17,786 B/S: ∞

Lawrence E Harris

173,482 shares

Net: -80,222 B/S: 0.01

Denis Mendonca

145,071 shares

Net: -1 B/S: ∞

Jill Bright

11,082 shares

Net: +1,178 B/S: ∞

William Peterffy

10,126 shares

Net: +778 B/S: ∞

Nicole Yuen

10,126 shares

Net: +778 B/S: ∞

Richard H Repetto

3,046 shares

Net: +778 B/S: ∞

Philip Uhde

2,572 shares

Net: 0 B/S: -

Lori A Conkling

2,484 shares

Net: +2,095 B/S: ∞

John M. Damgard

2,188 shares

Net: 0 B/S: -

Gary Katz

1,928 shares

Net: 0 B/S: -

Insider Name	Current Shares	Net Change (1yr)	Buy/Sell Ratio
Milan Galik	3,215,389	-925,688	∞
Paul Jonathan Brody	2,856,806	-593,449	0.1
Thomas Peterffy	1,516,182	0	-
Earl H Nemser	429,344	-547,348	0.04
Thomas AJ Frank	251,518	-17,786	∞
Lawrence E Harris	173,482	-80,222	0.01
Denis Mendonca	145,071	-1	∞
Jill Bright	11,082	+1,178	∞
William Peterffy	10,126	+778	∞
Nicole Yuen	10,126	+778	∞
Richard H Repetto	3,046	+778	∞
Philip Uhde	2,572	0	-
Lori A Conkling	2,484	+2,095	∞
John M. Damgard	2,188	0	-
Gary Katz	1,928	0	-

Individual Transactions

June 01, 2026

Lori A Conkling

Open Market Purchase

Change: +25

Price: $86.10

Shares: 2,484

Value: +$2,152

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Lori A Conkling	Jun 02	Open Market Purchase (P) Market Purchase	2,484	+25	$86.10	+$2,152

May 08, 2026

Earl H Nemser

Tax Payment

Change: -22,486

Price: $84.42

Shares: 429,344

Value: -$1,898,268

Thomas AJ Frank

Tax Payment

Change: -31,730

Price: $84.42

Shares: 251,518

Value: -$2,678,646

Milan Galik

Tax Payment

Change: -255,039

Price: $84.42

Shares: 3,215,389

Value: -$21,530,392

Denis Mendonca

Tax Payment

Change: -11,157

Price: $84.42

Shares: 145,071

Value: -$941,873

Paul Jonathan Brody

Tax Payment

Change: -82,920

Price: $84.42

Shares: 2,856,806

Value: -$7,000,106

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Earl H Nemser	May 28	Tax Payment (F) Tax Payment	429,344	-22,486	$84.42	-$1,898,268
Thomas AJ Frank	May 28	Tax Payment (F) Tax Payment	251,518	-31,730	$84.42	-$2,678,646
Milan Galik	May 28	Tax Payment (F) Tax Payment	3,215,389	-255,039	$84.42	-$21,530,392
Denis Mendonca	May 28	Tax Payment (F) Tax Payment	145,071	-11,157	$84.42	-$941,873
Paul Jonathan Brody	May 28	Tax Payment (F) Tax Payment	2,856,806	-82,920	$84.42	-$7,000,106

May 01, 2026

Lori A Conkling

Open Market Purchase

Change: +25

Price: $79.64

Shares: 2,459

Value: +$1,991

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Lori A Conkling	May 04	Open Market Purchase (P) Market Purchase	2,459	+25	$79.64	+$1,991

April 28, 2026

Lawrence E Harris

Open Market Sale

Change: -26,000

Price: $76.93

Shares: 173,482

Value: -$2,000,180

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Lawrence E Harris	Apr 29	Open Market Sale (S) Market Sale	173,482	-26,000	$76.93	-$2,000,180

April 01, 2026

Lori A Conkling

Open Market Purchase

Change: +25

Price: $68.38

Shares: 2,434

Value: +$1,709

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Lori A Conkling	Apr 02	Open Market Purchase (P) Market Purchase	2,434	+25	$68.38	+$1,709

March 02, 2026

Lori A Conkling

Open Market Purchase

Change: +25

Price: $69.21

Shares: 2,409

Value: +$1,730

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Lori A Conkling	Mar 26	Open Market Purchase (P) Market Purchase	2,409	+25	$69.21	+$1,730

February 25, 2026

Lori A Conkling

Open Market Purchase

Change: +50

Price: $73.21

Shares: 2,384

Value: +$3,660

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Lori A Conkling	Mar 26	Open Market Purchase (P) Market Purchase	2,384	+50	$73.21	+$3,660

January 27, 2026

Earl H Nemser

Open Market Sale

Change: -39,731

Price: $75.07

Shares: 20,469

Value: -$2,982,606

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Earl H Nemser	Jan 28	Open Market Sale (S) Market Sale	20,469	-39,731	$75.07	-$2,982,606

January 26, 2026

Earl H Nemser

Open Market Sale

Change: -60,882

Price: $75.83

Shares: 94,118

Value: -$4,616,682

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Earl H Nemser	Jan 28	Open Market Sale (S) Market Sale	94,118	-60,882	$75.83	-$4,616,682

January 23, 2026

Earl H Nemser

Open Market Sale

Change: -84,935

Price: $77.65

Shares: 215,065

Value: -$6,595,202

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Earl H Nemser	Jan 26	Open Market Sale (S) Market Sale	215,065	-84,935	$77.65	-$6,595,202

January 22, 2026

Earl H Nemser

Open Market Sale

Change: -100,000

Price: $76.81

Shares: 300,000

Value: -$7,681,000

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Earl H Nemser	Jan 26	Open Market Sale (S) Market Sale	300,000	-100,000	$76.81	-$7,681,000

January 01, 2026

William Peterffy

Grant/Award Acquisition

Change: +389

Price: $64.31

Shares: 10,126

Value: +$25,016

Earl H Nemser

Grant/Award Acquisition

Change: +389

Price: $64.31

Shares: 451,830

Value: +$25,016

Paul Jonathan Brody

Grant/Award Acquisition

Change: +389

Price: $64.31

Shares: 2,939,726

Value: +$25,016

Milan Galik

Grant/Award Acquisition

Change: +389

Price: $64.31

Shares: 3,470,428

Value: +$25,016

Lawrence E Harris

Grant/Award Acquisition

Change: +389

Price: $64.31

Shares: 199,482

Value: +$25,016

Insider	Filing Date	Transaction	Shares	Change	Price	Value
William Peterffy	Jan 26	Grant/Award Acquisition (A) Compensation/Award	10,126	+389	$64.31	+$25,016
Earl H Nemser	Jan 26	Grant/Award Acquisition (A) Compensation/Award	451,830	+389	$64.31	+$25,016
Paul Jonathan Brody	Jan 26	Grant/Award Acquisition (A) Compensation/Award	2,939,726	+389	$64.31	+$25,016
Milan Galik	Jan 26	Grant/Award Acquisition (A) Compensation/Award	3,470,428	+389	$64.31	+$25,016
Lawrence E Harris	Jan 26	Grant/Award Acquisition (A) Compensation/Award	199,482	+389	$64.31	+$25,016