LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM
IBKRCIK 0001381197

Interactive Brokers Group, Inc.

49 transactions by 11 insiders, from October 23, 2025 to September 1, 2026.

Transactions
4911 insiders
Bought · P
$44Kopen market
Sold · S
$32.7Mopen market
Net
−$32.7Mnet selling

Officers and directors

People inside the company. What they do with their own shares is the reason this data exists.

InsiderTradesPlannedBoughtSold
Earl H. NemserChair13——$30.7M
Lori A. ConklingDir128/12$18K—
Milan GalikCEO4———
Paul Jonathan BrodyCFO4———
Jill BrightDir3—$26K—
Lawrence E. HarrisDir3——$2.0M
Denis MendoncaCAO2———
William PeterffyDir2———
Nicole YuenDir2———
Richard H. RepettoDir2———
Thomas AJ FrankPres2———

All transactions

49 in total, newest filings first.

InsiderDateCodeSharesPriceValue
Lori A. ConklingDirSep 1PPLAN25$94.53$2K
Earl H. NemserChairJul 31A803,568$87.99$70.7M
Lori A. ConklingDirAug 3PPLAN25$87.03$2K
Lori A. ConklingDirJul 1PPLAN25$88.03$2K
Lori A. ConklingDirJun 1PPLAN25$86.10$2K
Denis MendoncaCAOMay 8F11,157$84.42$942K
Earl H. NemserChairMay 8F22,486$84.42$1.9M
Milan GalikCEOMay 8F255,039$84.42$21.5M
Thomas AJ FrankPresMay 8F31,730$84.42$2.7M
Paul Jonathan BrodyCFOMay 8F82,920$84.42$7.0M
Lori A. ConklingDirMay 1PPLAN25$79.64$2K
Lawrence E. HarrisDirApr 28S26,000$76.93$2.0M
Lori A. ConklingDirApr 1PPLAN25$68.38$2K
Lori A. ConklingDirMar 2PPLAN25$69.21$2K
Lori A. ConklingDirFeb 25PPLAN50$73.21$4K
Earl H. NemserChairJan 27S20,469$75.75$1.6M
Earl H. NemserChairJan 27S39,731$75.07$3.0M
Earl H. NemserChairJan 26S3,101$77.98$242K
Earl H. NemserChairJan 26S30,817$76.72$2.4M
Earl H. NemserChairJan 26S60,882$75.83$4.6M
Earl H. NemserChairJan 23S60,065$78.14$4.7M
Earl H. NemserChairJan 23S84,935$77.65$6.6M
Earl H. NemserChairJan 22S100,000$76.81$7.7M
William PeterffyDirJan 1A389$64.31$25K
Earl H. NemserChairJan 1A389$64.31$25K
Nicole YuenDirJan 1A389$64.31$25K
Richard H. RepettoDirJan 1A389$64.31$25K
Lawrence E. HarrisDirJan 1A389$64.31$25K
Milan GalikCEOJan 1A389$64.31$25K
Lori A. ConklingDirJan 1A389$64.31$25K
Lori A. ConklingDirDec 31A389$0.00—
Paul Jonathan BrodyCFOJan 1A389$64.31$25K
Jill BrightDirJan 1A389$64.31$25K
Richard H. RepettoDirDec 31A389$64.31$25K
Earl H. NemserChairDec 31A389$64.31$25K
Earl H. NemserChairDec 31A23,240$0.00—
Denis MendoncaCAODec 31A11,156$0.00—
Nicole YuenDirDec 31A389$64.31$25K
William PeterffyDirDec 31A389$64.31$25K
Lawrence E. HarrisDirDec 31A389$64.31$25K
Milan GalikCEODec 31A389$64.31$25K
Milan GalikCEODec 31A224,650$0.00—
Thomas AJ FrankPresDec 31A13,944$0.00—
Lori A. ConklingDirDec 31A389$64.31$25K
Lori A. ConklingDirDec 31A1,167$0.00—
Paul Jonathan BrodyCFODec 31A389$64.31$25K
Paul Jonathan BrodyCFODec 31A53,452$0.00—
Jill BrightDirDec 31A389$64.31$25K
Jill BrightDirOct 23P400$65.95$26K