The United States Securities and Exchange Commission

Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . New York Stock Exchange Depositary Shares, each representing 1/1,000th interest in a share of Floating Rate Non-Cumulative Preferred Stock, Series A, $0.01 par value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . New York Stock Exchange 61⁄4% Capital Securities of Morgan Stanley Capital Trust III (and Registrant’s guaranty with respect thereto) . . . . . . . . . . . . . . . . . . . . . . New York Stock Exchange 61⁄4% Capital Securities of Morgan Stanley Capital Trust IV (and Registrant’s guaranty with respect thereto) . . . . . . . . . . . . . . . . . . . . . . New York Stock Exchange 53⁄4% Capital Securities of Morgan Stanley Capital Trust V (and Registrant’s guaranty with respect thereto) . . . . . . . . . . . . . . . . . . . . . . New York Stock Exchange 6.60% Capital Securities of Morgan Stanley Capital Trust VI (and Registrant’s guaranty with respect thereto) . . . . . . . . . . . . . . . . . . . . . New York Stock Exchange 6.60% Capital Securities of Morgan Stanley Capital Trust VII (and Registrant’s guaranty with respect thereto) . . . . . . . . . . . . . . . . . . . . New York Stock Exchange 6.45% Capital Securities of Morgan Stanley Capital Trust VIII (and Registrant’s guaranty with respect thereto) . . . . . . . . . . . . . . . . . . . New York Stock Exchange SPARQS® due March 20, 2008; SPARQS due April 20, 2008; SPARQS due May 20, 2008; SPARQS due June 20, 2008 (3 issuances); SPARQS due July 20, 2008; SPARQS due August 20, 2008; SPARQS due September 20, 2008; SPARQS due October 20, 2008; SPARQS due January 20, 2009 (2 issuances); SPARQS due February 20, 2009 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . American Stock Exchange Exchangeable Notes due December 30, 2008; Exchangeable Notes due December 30, 2010; Exchangeable Notes due June 30, 2011 . . . American Stock Exchange Callable Index-Linked Notes due December 30, 2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . American Stock Exchange BRIDGESSM due August 30, 2008; BRIDGES due December 30, 2008; BRIDGES due February 28, 2009; BRIDGES due March 30, 2009; BRIDGES due June 30, 2009; BRIDGES due July 30, 2009; BRIDGES due August 30, 2009; BRIDGES due October 30, 2009; BRIDGES due December 30, 2009; BRIDGES due June 15, 2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . American Stock Exchange Capital Protected Notes due June 30, 2008; Capital Protected Notes due September 30, 2008; Capital Protected Notes due December 30, 2008; Capital Protected Notes due December 30, 2009; Capital Protected Notes due April 20, 2010; Capital Protected Notes due July 20, 2010 (2 issuances); Capital Protected Notes due August 30, 2010; Capital Protected Notes due October 30, 2010; Capital Protected Notes due January 30, 2011; Capital Protected Notes due February 20, 2011; Capital Protected Notes due March 30, 2011 (2 issuances); Capital Protected Notes due June 30, 2011; Capital Protected Notes due August 20, 2011; Capital Protected Notes due October 30, 2011 (2 issuances); Capital Protected Notes due December 30, 2011; Capital Protected Notes due September 30, 2012 . . . . American Stock Exchange Capital Protected Notes due September 1, 2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The NASDAQ Stock Market LLC HITSSM due February 20, 2008; HITS due March 20, 2008; HITS due April 20, 2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . American Stock Exchange MPSSM due December 30, 2008; MPS due December 30, 2009; MPS due February 1, 2010; MPS due June 15, 2010; MPS due December 30, 2010 (2 issuances); MPS due March 30, 2012 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . American Stock Exchange MPS due March 30, 2009 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The NASDAQ Stock Market LLC Stock Participation Notes due September 15, 2010; Stock Participation Notes due December 30, 2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . American Stock Exchange Bear Market PLUS due February 20, 2008; Bear Market PLUS due April 20, 2008; Bear Market PLUS due July 20, 2008 . . . . . . . . . . . American Stock Exchange Outperformance PLUS due December 20, 2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . American Stock Exchange PLUSSM due March 20, 2008 (3 issuances); PLUS due April 30, 2008 (2 issuances); PLUS due May 20, 2008; PLUS due October 20, 2008; PLUS due December 20, 2008 (4 issuances); PLUS due January 20, 2009 (3 issuances); PLUS due February 20, 2009; PLUS due June 30, 2009 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . American Stock Exchange PLUS due June 20, 2008; PLUS due August 20, 2008; PLUS due November 20, 2008; PLUS due December 20, 2008; PLUS due January 20, 2009; PLUS due September 30, 2009 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The NASDAQ Stock Market LLC PROPELSSM due December 30, 2011 (3 issuances) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . American Stock Exchange Protected Absolute Return Barrier Notes due December 20, 2008; Protected Absolute Return Barrier Notes due July 20, 2008; Protected Absolute Return Barrier Notes due September 20, 2008; Protected Absolute Return Barrier Notes due October 20, 2008; Protected Absolute Return Barrier Notes due June 20, 2009 (2 issuances); Protected Absolute Return Barrier Notes due July 20, 2009 . . . . . . . . . . . . American Stock Exchange Strategic Total Return Securities due December 17, 2009; Strategic Total Return Securities due March 30, 2010; Strategic Total Return Securities due July 30, 2011(2 issuances); Strategic Total Return Securities due January 15, 2012 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . American Stock Exchange Strategic Total Return Securities due October 30, 2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The NASDAQ Stock Market LLC BOXESSM due October 30, 2031; BOXES due January 30, 2032 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . American Stock Exchange Philadelphia Stock Exchange