PROSPECTUS Dated May 5, 1999 Pricing Supplement No. 58 to
PROSPECTUS SUPPLEMENT Registration Statement No. 333-75289
Dated May 6, 1999 Dated April 3, 2000
Rule 424(b)(3)
Morgan Stanley Dean Witter & Co.
GLOBAL MEDIUM-TERM NOTES, SERIES D
Euro Floating Rate Senior Bearer Notes Due 2002
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We may not redeem these Global Medium-Term Notes, Series D (Euro Floating
Rate Senior Bearer Notes Due 2002) prior to the Maturity Date other than under
the circumstances described under "Description of Notes--Tax Redemption" in the
accompanying prospectus supplement.
We will issue the notes only in bearer form, which form is further
described under "Description of Notes--Forms of Notes" in the accompanying
prospectus supplement. You may not exchange notes in bearer form at any time
for notes in registered form.
We have applied to the London Stock Exchange Limited for the notes to be
admitted on the Official List.
We describe the basic features of this type of note in the section called
"Description of Notes--Floating Rate Notes" in the accompanying prospectus
supplement, subject to and as modified by the provisions described below.
Principal Amount: $10,000,000
Maturity Date: April 12, 2002
Settlement and Original
Issue Date: April 12, 2000
Interest Accrual Date: April 12, 2000
Issue Price: 99.893%
Specified Currency: U.S. Dollars
Redemption Percentage
at Maturity: 100%
Base Rate: LIBOR
Spread (Plus or Minus): Plus 0.0625% per annum
Spread Multiplier: N/A
Index Currency: U.S. Dollars
Index Maturity: 6 months
Maximum Interest Rate: N/A
Minimum Interest Rate: N/A
Initial Interest Rate: To be determined two London banking days
prior to the Original Issue Date
Initial Redemption Date: N/A
Initial Redemption
Percentage: N/A
Annual Redemption
Percentage Reduction: N/A
Optional Repayment
Date(s): N/A
Interest Payment Dates: Each April 12 and October 12, commencing
October 12, 2000; provided that if any
such day (except the maturity date) is
not a business day, that interest
payment date will be the next
succeeding day that is a business day,
unless that succeeding business day
would fall in the next calendar month,
in which case such interest payment
date will be the immediately preceding
business day
Interest Payment Period: Semi-annually
Interest Reset Dates: Each Interest Payment Date
Interest Reset Periods: Semi-annually
Business Day: New York, London
Calculation Agent: The Chase Manhattan Bank
Agent: Morgan Stanley & Co. International
Limited
Denominations: $100,000
Common Code: 011022669
ISIN: XS0110226692
Other Provisions: N/A
Terms not defined above have the meanings given to those
terms in the accompanying prospectus supplement.
MORGAN STANLEY DEAN WITTER
