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PROSPECTUS SUPPLEMENT NO. 6 FILED PURSUANT TO RULE 424(B)(3)
(TO PROSPECTUS DATED OCTOBER 21, 1999)
REGISTRATION NO. 333-87999
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$200,000,000
AMERITRADE HOLDING CORPORATION
5.75% CONVERTIBLE SUBORDINATED NOTES DUE AUGUST 1, 2004
AND 6,142,740 SHARES OF CLASS A COMMON STOCK
ISSUABLE UPON CONVERSION OF THE NOTES
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This prospectus supplement no. 6 relates to the resale by the holders of
5.75% Convertible Subordinated Notes due August 1, 2004 of Ameritrade Holding
Corporation and the shares of Class A common stock of Ameritrade issuable upon
the conversion of the notes.
This prospectus supplement no. 6 should be read in conjunction with the
prospectus dated October 21, 1999, the prospectus supplement dated November 9,
1999, the prospectus supplement no. 2 dated November 22, 1999, the prospectus
supplement no. 3 dated December 22, 1999, the prospectus supplement no. 4 dated
January 27, 2000, and the prospectus supplement no. 5 dated March 10, 2000, each
of which are to be delivered with this prospectus supplement no. 6. All
capitalized terms used but not defined in this prospectus supplement no. 6 shall
have the meanings given them in the prospectus.
The information in the table appearing under the heading "Selling Holders"
in the prospectus, as amended by each prior prospectus supplement, is superseded
in part by the information appearing in the table below:
<TABLE>
<CAPTION>
PRINCIPAL AMOUNT OF CLASS A COMMON CLASS A
NOTES BENEFICIALLY STOCK OWNED PRIOR COMMON
NAME OWNED AND OFFERED TO THE OFFERING(1)(2) STOCK OFFERED(2)
---- ------------------- --------------------- ----------------
<S> <C> <C> <C>
KBC Financial Products U.S.A................ $ 100,000 3,071 3,071
Triton Capital Investments, Ltd............. 8,790,000 269,973 269,973
</TABLE>
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(1) Includes Class A common stock into which the notes are convertible.
(2) Assumes a conversion price of 30.7137 shares per $1,000 principal amount of
notes and a cash payment in lieu of any fractional interest.
INVESTING IN OUR CLASS A COMMON STOCK OR OUR CONVERTIBLE SUBORDINATED NOTES
INVOLVES A HIGH DEGREE OF RISK. PLEASE CAREFULLY CONSIDER THE "RISK FACTORS"
BEGINNING ON PAGE 8 OF THE PROSPECTUS.
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NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR PASSED UPON THE
ADEQUACY OR ACCURACY OF THIS PROSPECTUS SUPPLEMENT NO. 6, ANY PRIOR PROSPECTUS
SUPPLEMENT OR THE PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL
OFFENSE.
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The date of this prospectus supplement is April 11, 2000.
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