PROSPECTUS Dated May 5, 1999 Pricing Supplement No. 12 to
PROSPECTUS SUPPLEMENT Registration Statement No. 333-75289
Dated May 6, 1999 Dated June 1, 1999
Rule 424(b)(3)
Morgan Stanley Dean Witter & Co.
GLOBAL MEDIUM-TERM NOTES, SERIES D
Euro Floating Rate Senior Bearer Notes Due 2006
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We may not redeem these Global Medium-Term Notes, Series D (Euro
Floating Rate Senior Bearer Notes Due 2006) 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: Euro 15,000,000
Maturity Date: June 14, 2006
Settlement and Issue
Date: June 14, 1999
Interest Accrual Date: June 14, 1999
Issue Price: 100%
Specified Currency: Euro
Redemption Percentage
at Maturity: 100%
Base Rate: EURIBOR. See also "Interest Rate" below.
Spread (Plus or Minus): (i) 0.00% per year for each Interest Payment Period
commencing on the Issue Date to but excluding the
Interest Reset Date scheduled to occur on June 14,
2001.
(ii) Plus 1.10% per year for each Interest Payment
Period commencing on the Interest Reset Date scheduled
to occur on June 14, 2001 to but excluding the Maturity
Date. See also "Interest Rate" below.
Spread Multiplier: N/A
Index Currency: Euro
Index Maturity: 3 months
Maximum Interest Rate: N/A
Minimum Interest Rate: N/A
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 March 14, June 14, September 14 and December 14,
commencing September 14, 1999; provided that if that
day is not a Business Day, the interest payment will be
made on the next succeeding day that is a Business Day,
unless that succeeding Business Day falls in the next
succeeding calendar month, in which case the interest
payment will be the immediately preceding day that is a
Business Day
Interest Payment Period: Quarterly
Interest Reset Dates: Each Interest Payment Date
Interest Reset Periods: The period from and including the previous Interest
Reset Date and to but excluding the immediately
succeeding Interest Reset Date.
Business Day: New York, London, TARGET
Calculation Agent: The Chase Manhattan Bank
Determination Agent: Morgan Stanley & Co. International Limited
Agent: Morgan Stanley & Co. International Limited
Denominations: Euro 100,000
Common Code: 9847227
ISIN: XS0098472276
Other Provisions: See below
Terms not defined above have the meanings given to those terms in the
accompanying prospectus supplement.
MORGAN STANLEY DEAN WITTER
Interest Rate: (i) For each Interest Payment Period commencing on the
Issue Date to but excluding the Interest Reset Date scheduled
to occur on June 14, 2001, the Interest Rate per year will be
the Base Rate plus the Spread.
(ii) For each Interest Payment Period commencing on the
Interest Payment Date scheduled to occur on June 14, 2001 to
but excluding the Maturity Date, the Interest Rate per year
will be (a) the sum of Base Rate plus the Spread times (b)
the quotient of N divided by M; provided that if Greece
becomes a member of the European Monetary Union and adopts
the euro in accordance with the EC Treaty as its lawful
currency, the Interest Rate will be the Base Rate plus the
Spread.
N is the number of calendar days in the Interest Reset
Period, as determined by the Determination Agent, on which
the Reference Rate for that calendar day is less than or
equal to 0.80% and greater than or equal to 0.00%; provided
that the Reference Rate for a calendar day that is not a
Business Day will be the Reference Rate for the immediately
preceding Business Day; and provided further that the
Reference Rate for the fifth Business Day immediately
preceding an Interest Payment Date will be the Reference Rate
for each calendar day from and including that fifth preceding
Business Day to but excluding the Interest Payment Date. M is
the total number of calendar days in the Interest Reset
Period. The Reference Rate will be calculated by the
Determination Agent.
Reference Rate: The 5-year GRD Swap Rate minus the 5-year Euro Swap Rate
5-year GRD
Swap Rate: The 5-year GRD mid-market annual swap rate (based on
actual/365 (fixed) day count fraction versus 6 month
Athimid), as the arithmetic average of the rates displayed on
Reuters' pages "GREEK" and "DRAK" at or about 10:00 a.m.,
London time; provided that in the event a page on that
service or any other service displaying the 5-year GRD
mid-market annual swap rate at or about 10 a.m., London time,
becomes available, then the 5-year GRD Swap Rate will be the
rate displayed on that page; provided further that if no such
rate is observed, the 5-year GRD Swap Rate will be
established by the Determination Agent in its sole
discretion.
5-year Euro
Swap Rate: The 5-year EUR mid-market annual swap rate (based on 30/360
day count fraction versus 6 month EURIBOR) as displayed on
Telerate Page "42281" at or about 10:00 a.m., London time;
provided that if no rate is observed, the 5-year Euro Swap
Rate will be established by the Determination Agent in its
sole discretion.
