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Interactive Brokers Group, Inc. (IBKR)

-NasdaqGS

16.47 19 Jun 04:00 SGT

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Breakdown
% of Shares Held by All Insider and 5% Owners:1%
% of Shares Held by Institutional & Mutual Fund Owners:73%
% of Float Held by Institutional & Mutual Fund Owners:74%
Number of Institutions Holding Shares:152

Major Direct Holders (Forms 3 & 4)
HolderSharesReported
TCV VI L PN/ADec 20, 2012
GALIK MILAN860,604Jun 14, 2013
BRODY PAUL JONATHAN503,819May 9, 2013
FRANK THOMAS AJ287,190May 9, 2013
NEMSER EARL H86,673May 9, 2013
Top Institutional Holders
HolderShares% OutValue*Reported
RS Investment Management Co., LLC3,677,8317.7454,836,460Mar 31, 2013
Vanguard Group, Inc. (The)2,612,2235.5038,948,244Mar 31, 2013
Ancient Art, L.P.2,247,9534.7333,516,979Mar 31, 2013
Citadel Advisors LLC1,631,0533.4324,319,000Mar 31, 2013
Susquehanna International Group, LLP1,535,4973.2322,894,260Mar 31, 2013
BlackRock Fund Advisors1,465,7873.0921,854,884Mar 31, 2013
Dimensional Fund Advisors LP1,335,9982.8119,919,730Mar 31, 2013
BlackRock Institutional Trust Company, N.A.1,271,7922.6818,962,418Mar 31, 2013
ING Investment Management Europe B.V.1,087,5002.2916,214,625Mar 31, 2013
FMR, LLC7,026,37814.79104,763,295Mar 31, 2013

Top Mutual Fund Holders
HolderShares% OutValue*Reported
RS Investment Trust-Partners Fund1,804,4003.8026,903,604Mar 31, 2013
Fidelity Advisor Stock Selector Mid Cap Fund1,085,7672.2916,351,651Apr 30, 2013
Pennsylvania Mutual Fund Inc788,6001.6611,758,026Mar 31, 2013
iShares Core S&P Smallcap ETF709,7751.4910,689,211Apr 30, 2013
Vanguard Small-Cap Index Fund673,9711.4210,048,907Mar 31, 2013
Vanguard Total Stock Market Index Fund651,8021.379,718,367Mar 31, 2013
DWS Dreman Small Cap Value Fd621,2211.319,138,160Feb 28, 2013
Vanguard Small Cap Value Index Fund459,5880.976,852,457Mar 31, 2013
JNL Variable LLC-JNL/Mellon Cap Management S&P Smid 60 Fund398,0000.845,934,180Mar 31, 2013
DFA U.S. Micro Cap Series362,6860.765,186,409Jan 31, 2013

View Transactions for Insiders & Institutional Holders

Value shown is computed using the security's price on the report date given.

Currency in USD.