PROSPECTUS SUPPLEMENT File No. 333-105098 - --------------------- Rule 424(b)(3) (To Prospectus Supplement and Prospectus dated June 3,2003) Pricing Supplement Number: 2344 Merrill Lynch & Co., Inc. Medium-Term Notes, Series B Due Nine Months or More from Date of Issue Fixed Rate Notes Principal Amount: $700,000,000 Issue Price: 99.466% CUSIP Number: 59018YSH4 Interest Rate: 4.50% per annum Original Issue Date: November 4, 2003 Stated Maturity Date: November 4, 2010 Interest Payment Dates: Each May 4th and November 4th, commencing on May 4th, 2004 subject to following business day convention. Repayment at the Option of the Holder: The Notes cannot be repaid prior to the Stated Maturity Date. Redemption at the Option of the Company: The Notes cannot be redeemed prior to the Stated Maturity Date. Form: The Notes are being issued in fully registered book-entry form. Trustee: JPMorgan Chase Bank Underwriters: Merrill Lynch, Pierce, Fenner & Smith Incorporated ("MLPF&S"), Wachovia Securities Inc. and Wells Fargo Brokerage Services, LLC (the "Underwriters"), are acting as principals in this transaction. MLPF&S is acting as the Lead Underwriter. Pursuant to an agreement, dated October 30, 2003 (the "Agreement"), between the Company and the Underwriters, the Company has agreed to sell to each of the Underwriters and each of the Underwriters has severally and not jointly agreed to purchase the principal amount of Notes set forth opposite its name below: