<PAGE> 1
FILED PURSUANT TO RULE 424(b)(3)
REGISTRATION NO. 333-31342
PROSPECTUS SUPPLEMENT NO. 15 DATED OCTOBER 2, 2000
TO PROSPECTUS DATED APRIL 6, 2000, AS SUPPLEMENTED
ON APRIL 17, 2000, APRIL 25, 2000, MAY 8, 2000,
MAY 22, 2000, MAY 30, 2000, JUNE 9, 2000,
JUNE 21, 2000, JULY 5, 2000, JULY 19, 2000,
JULY 27, 2000, AUGUST 16, 2000, AUGUST 24, 2000,
SEPTEMBER 1, 2000 AND SEPTEMBER 18, 2000
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<S> <C> <C>
[I2 LOGO] i2 TECHNOLOGIES, INC.
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$350,000,000 5 1/4% Convertible Subordinated Notes due December 15, 2006
and
4,605,790 Shares of Common Stock Issuable upon Conversion of the Notes
The information contained in the table appearing under the heading "Selling
Securityholders" on pages 35-37 of the prospectus, as supplemented prior to the
date of this prospectus supplement, with respect to the Selling Securityholder
named below, is hereby deleted and restated with the following information:
<TABLE>
<CAPTION>
PRINCIPAL
AMOUNT SHARES OF
OF NOTES PERCENTAGE OF COMMON STOCK
THAT NOTES THAT MAY BE
NAME OF SELLING SECURITYHOLDER MAY BE SOLD OUTSTANDING SOLD(1)
------------------------------ ----------- ------------- ------------
<S> <C> <C> <C>
Van Kampen Harbor Fund........................ $3,000,000 * 39,478
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* Indicates less than one percent.
(1) Assumes full conversion of the notes held by each holder at the rate of
13.1594 shares per each $1,000 in principal amount of notes.
The information contained in the table appearing under the heading "Selling
Securityholders" on pages 35-37 of the prospectus, as supplemented prior to the
date of this prospectus supplement, with respect to the Selling Securityholder
named below, is hereby deleted:
<TABLE>
<CAPTION>
PRINCIPAL
AMOUNT SHARES OF
OF NOTES PERCENTAGE OF COMMON STOCK
THAT NOTES THAT MAY BE
NAME OF SELLING SECURITYHOLDER MAY BE SOLD OUTSTANDING SOLD(1)
------------------------------ ----------- ------------- ------------
<S> <C> <C> <C>
Van Kampen Convertible Securities Fund........ $ 476,000 * 6,263
</TABLE>
