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Interactive Brokers Group, Inc. — Insider Transactions

Form 4 filings by directors, officers, and 10%+ shareholders

SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.

Overview All Filings Annual Quarterly Insiders
Insider Title Type Shares Price Value Owns After Date
Frank Thomas AJ Chief Information Officer Tax Withholding 8,241 $17.41 $143,476 177,829 May 9, 2011
Brody Paul Jonathan Chief Financial Officer Tax Withholding 13,349 $17.41 $232,406 272,132 May 9, 2011
Nemser Earl H Vice Chariman Tax Withholding 2,678 $17.41 $46,624 54,092 May 9, 2011
Galik Milan SVP Software Development Tax Withholding 37,113 $17.41 $646,137 641,733 May 9, 2011
Galik Milan SVP Software Development Award / Grant 174,342 678,846 Dec 31, 2010
Brody Paul Jonathan Chief Financial Officer Award / Grant 92,983 285,481 Dec 31, 2010
Nemser Earl H Vice Chariman Award / Grant 15,110 56,770 Dec 31, 2010
Frank Thomas AJ Chief Information Officer Award / Grant 58,114 186,070 Dec 31, 2010
Galik Milan SVP Software Development Tax Withholding 24,009 $16.47 $395,428 504,504 May 14, 2010
Nemser Earl H Vice Chariman Tax Withholding 1,847 $16.74 $30,919 41,660 May 14, 2010
Brody Paul Jonathan Chief Financial Officer Tax Withholding 8,557 $16.47 $140,934 192,498 May 14, 2010
Galik Milan SVP Software Development Award / Grant 200,244 528,513 Dec 31, 2009
Frank Thomas AJ Chief Information Officer Award / Grant 57,213 127,956 Dec 31, 2009
Brody Paul Jonathan Chief Financial Officer Award / Grant 80,098 201,055 Dec 31, 2009
Marshall Christopher P Award / Grant 4,233 4,233 Dec 31, 2009
Nemser Earl H Vice Chairman Award / Grant 14,876 43,507 Dec 31, 2009
Trudeau Robert Purchase 46,127 $19.10 $881,026 1,470,066 Aug 6, 2009
Technology Crossover Management VII, Ltd. Purchase 36,861 $19.10 $704,045 1,174,754 Aug 4, 2009
TCV VII LP Purchase 1,637 $18.15 $29,712 31,262 Jul 30, 2009
REYNOLDS JON Q JR Purchase 11,814 $18.60 $219,740 1,407,274 Jul 29, 2009
Frank Thomas AJ Chief Information Officer Award / Grant 2,890 $31.14 $89,995 11,481 May 9, 2009
Brody Paul Jonathan Chief Financial Officer Award / Grant 4,818 $31.14 $150,033 15,248 May 9, 2009
Galik Milan SVP Software Development Tax Withholding 13,714 $15.83 $217,093 52,375 May 9, 2009
Nemser Earl H Vice Chairman Award / Grant 1,450 $17.24 $24,998 5,555 May 9, 2009
Harris Lawrence E Purchase 5,000 $14.23 $71,150 30,464 May 1, 2009
Harris Lawrence E Purchase 1,000 $14.55 $14,550 25,464 Feb 2, 2009
Harris Lawrence E Purchase 1,000 $15.17 $15,170 18,464 Jan 31, 2009
Stoll Hans R. Award / Grant 4,193 4,193 Dec 31, 2008
Harris Lawrence E Award / Grant 464 $32.32 $14,996 15,464 Dec 31, 2008
Riley Ivers W Award / Grant 4,193 4,193 Dec 31, 2008
Harris Lawrence E Purchase 1,000 $18.67 $18,670 11,000 Dec 27, 2008
Harris Lawrence E Purchase 5,000 $27.10 $135,500 10,000 Aug 4, 2008
Brody Paul Jonathan Chief Financial Officer Award / Grant 3,499 $30.01 $105,005 5,831 May 9, 2008
Frank Thomas AJ Chief Information Officer Award / Grant 2,499 $30.01 $74,995 4,165 May 9, 2008
Galik Milan SVP Software Development Tax Withholding 6,725 $32.62 $219,369 22,486 May 9, 2008
Nemser Earl H Vice Chairman Award / Grant 802 $31.14 $24,974 2,468 May 9, 2008
DeFeo Philip D Purchase 5,000 $24.88 $124,400 5,000 Jul 31, 2007
Harris Lawrence E Purchase 1,000 $24.20 $24,200 2,000 Jul 30, 2007