<PAGE>
 
                                                               File No. 33-38879
                                                                  Rule 424(b)(3)

                             PROSPECTUS SUPPLEMENT
                    (To Prospectus dated August 27, 1993)
               (To Prospectus Supplement dated October 4, 1993)
                                  No.:    1139
                                Dated:  03/08/94


                           MERRILL LYNCH & CO., INC.

                               Medium-Term Notes


Base Rate:                ___Commercial Paper Index Rate
                          _X_Federal Funds Rate
                          ___LIBOR
                          ___Treasury Index Rate
                          ___Prime Rate
                          ___Fixed Rate

Maturity Date:            03/14/95

Redemption Date:          N/A

Optional Repayment Dates: N/A

Spread:                   +0.19% (plus nineteen basis points)

Spread Multiplier:        N/A

Maximum Interest Rate:    N/A

Minimum Interest Rate:    N/A

Interest Reset Dates:     Daily, using the H.15 Fed Funds rate corresponding
                          to the immediately preceding Business Day.

Interest Payment Dates:   The 14th of each month.

Initial Interest Rate:    To be determined 3/14/94.

Index Maturity:           N/A

Form:                     Book-entry



© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission