PRICING SUPPLEMENT File No. 333-132911 - ------------------- Rule 424(b)(3) (To MTN Prospectus Supplement, General Prospectus Supplement and Prospectus, each dated March 31, 2006) Pricing Supplement 2647 Merrill Lynch & Co., Inc. Medium-Term Notes, Series C Due Nine Months or More from Date of Issue Floating Rate Notes Principal Amount: $25,000,000 Original Issue Date: February 9, 2007 CUSIP Number: 59018YZM6 Stated Maturity Date: July 29, 2011 Issue Price: 100.00% Interest Calculation: Day Count Convention: - -------------------- -------------------- - --- --- x Regular Floating Rate Note x Actual/360 - --- --- - --- --- Inverse Floating Rate Note 30/360 - --- --- - --- --- (Fixed Interest Rate): Actual/Actual --- --- Interest Rate Basis: - ------------------- - --- --- x LIBOR Commercial Paper Rate - --- --- - --- --- CMT Rate Eleventh District Cost of Funds Rate - --- --- - --- --- Prime Rate CD Rate - --- --- - --- --- Federal Funds Rate Other (see attached) - --- --- - --- Treasury Rate - --- Designated CMT Page: Designated LIBOR Page: CMT Moneyline Telerate Page: LIBOR Moneyline Telerate Page: 3750 LIBOR Reuters Page: