PROSPECTUS SUPPLEMENT File No. 333-68747
(To Prospectus and Prospectus Supplement dated May 6, 1999) Rule 424(b)(3)
Prospectus number: 1967
Merrill Lynch & Co., Inc.
Medium Term Notes, Series B
Due Nine Months or More from Date of Issue
Floating Rate Notes
Principal Amount: $2,500,000
CUSIP Number: 59018S6K5
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 Telerate Page: LIBOR Telerate Page:
CMT Reuters Page: LIBOR Reuter Page:
Index Maturity: Three Months Minimum Interest Rate: Not Applicable
Spread: 0.1250% Maximum Interest Rate: Not Applicable
Initial Interest Rate: TBD Spread Multiplier: Not Applicable
Interest Reset Dates: Quarterly, on the 18th of January, April, July and
October, commencing July 18, 2000; subject to
following business day convention.
Interest Payment Dates: Quarterly, on the 18th of January, April, July and
October, commencing July 18, 2000; subject to
following business day convention.
Other Provision: The Notes have the same terms (other than Issue date
and Issue price) as, and form a single series with,
the Floating Rate Notes due 2005 which were issued in
the principal amount of $5,000,000 on April 28, 2000.
The aggregate amount of the Floating Rate Notes due
2005, including the Notes issued pursuant to this
Pricing Supplement will be $7,500,000. Interest on
the notes offered pursuant to this Pricing Supplement
will accrue from April 28, 2000.
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: The Chase Manhattan Bank
Dated: May 9, 2000
