1、SECURITIES AND EXCHANGE COMMISSIONWASHINGTON,D.C.20549FORM 10-KANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)OFTHE SECURITIES EXCHANGE ACT OF 1934FOR THE FISCAL YEAR ENDED NOVEMBER 30,1998Commission File Number 1-11758Morgan Stanley Dean Witter&Co.(Exact name of Registrant as specified in its charter
2、)Delaware(State or other jurisdiction of incorporation or organization)1585 BroadwayNew York,N.Y.(Address of principal executive offices)36-3145972(I.R.S.Employer Identification No.)10036(Zip Code)Registrant s telephone number,including area code:(212)761-4000Securities registered pursuant to Sectio
3、n 12(b)of the Act:Title of each className of each exchangeon which registeredCommon Stock,$.01 par valueNew York Stock ExchangePacific ExchangeRights to Purchase Series A Junior Participating Preferred StockNew York Stock ExchangePacific ExchangeDepositary Shares,each representing 1/4 of a share of
4、73/4%Cumulative Preferred Stock,$200 stated valueNew York Stock ExchangeDepositary Shares,each representing 1/4 of a share of Series A Fixed/Adjustable Rate Cumulative PreferredStock,$200 stated valueNew York Stock Exchange7.82%Capital Units;7.80%Capital Units;9.00%Capital Units;8.40%Capital Units;8
5、.20%Capital Units;8.03%Capital Units1New York Stock Exchange6%PERQSSM Due February 16,1999;10%PERQS Due April 15,1999;6%Reset PERQS Due May 15,20002American Stock ExchangeExchangeable Notes Due September 30,2000;Exchangeable Notes Due July 31,2003;Exchangeable NotesDue December 30,2005;Exchangeable
6、Notes Due August 15,20063New York Stock ExchangeExchangeable Notes Due July 29,2005(two issuances);Exchangeable Notes Due April 15,20053American Stock ExchangePEEQSSM Due May 1,20014American Stock Exchange3%CPSSM Due August 8,2000;3%CPS Due May 17,20005American Stock ExchangeNikkei 225 Protection St