CBOE Holdings, Inc.·5

Feb 14, 3:46 PM ET

Londergan Benjamin R 5

5 · CBOE Holdings, Inc. · Filed Feb 14, 2011

Insider Transaction Report

Form 5
Period: 2010-12-31
Transactions
  • Other

    Class A-1 Common Stock

    2010-12-1530,0000 total(indirect: By Group One Trading, L.P.)
  • Other

    Unrestricted Common Stock

    2010-12-15+30,00030,000 total(indirect: By Group One Trading, L.P.)
Holdings
  • Unrestricted Common Stock

    7,547
Footnotes (2)
  • [F1]Reflects shares owned by Group One Trading, L.P. Mr. Londergan is chief executive officer of Group One Trading, L.P. Mr. Londergan disclaims beneficial ownership of those shares in which he does not have a pecuniary interest.
  • [F2]Each share of Class A-1 Common Stock automatically converted (without any action by the holder) into one share of Unrestricted Common Stock pursuant to a reclassification exempt under Rule 16b-7.

Documents

1 file
  • 5
    a5.xmlPrimary

    5