PROSPECTUS SUPPLEMENT File No. 333-68747
(To Prospectus and Prospectus Supplement dated May 6, 1999) Rule 424(b)(3)
Prospectus number: 1974
Merrill Lynch & Co., Inc.
Medium Term Notes, Series B
Due Nine Months or More from Date of Issue
Fixed Rate Notes
Principal Amount: $175,000,000
CUSIP Number: 59018S6Z2
Interest Rate: 7.85000%
Original Issue Date: May 30, 2000
Stated Maturity Date: May 30, 2003
Interest Payment Dates: Each May 30th and November 30th, commencing on
November 17th, 2000, subject to Modified
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: The Chase Manhattan Bank
Dated: May 24, 2000
