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 30,1999Commission File Number 1-11758Morgan Stanley Dean Witter&Co.(Exact name of Registrant as specified in its charter
2、)Delaware(State or other jurisdiction ofincorporation or organization)36-3145972(I.R.S.EmployerIdentification No.)1585 BroadwayNew York,N.Y.(Address of principal executive offices)10036(Zip Code)Registrants telephone number,including area code:(212)761-4000Securities registered pursuant to Section 1
3、2(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 representing14of a share of 734%Cu
4、mulative Preferred Stock,$200 stated valueNew York Stock ExchangeDepositary Shares,each representing14of a share of Series A Fixed/Adjustable Rate Cumulative PreferredStock,$200 stated valueNew York Stock Exchange8.40%Capital Units;8.20%Capital Units;8.03%Capital UnitsNew York Stock Exchange6%Reset
5、PERQSSMDue May 15,2000;6%Reset PERQS Due March 15,2001;6%Reset PERQS DueMay 30,2001;6%Reset PERQS Due August 1,2001;7%Reset PERQS Due August 15,2001;6%ResetPERQS Due December 15,2001;7.5%Currency Protected PERQS Due May 8,2000;7.0%CurrencyProtected PERQS Due May 22,2000American Stock ExchangeExchang
6、eable Notes Due September 30,2000;Exchangeable Notes Due July 31,2003;Exchangeable Notes DueDecember 30,2005;Exchangeable Notes Due August 15,2006;Exchangeable Notes Due March 2,2006(2 issuances);Exchangeable Notes Due May 30,2006;Exchangeable Notes Due June 5,2006;ExchangeableNotes Due July 7,2006;