Interactive Brokers Group Inc

CUSIP: 45841n107 Class: CS

Note: Option positions (PUT/CALL) are excluded.

InstitutionSharesValue ($000)
COZAD ASSET MANAGEMENT INC204,055$13,123
S&CO INC63,080$4
Legato Capital Management LLC4,502$290
Ancora Advisors LLC301$19
Total (4 institutions)271,938$13,436