PROSPECTUS SUPPLEMENT File No. 333-68747
(To Prospectus and Prospectus Supplement dated May 6, 1999) Rule 424(b)(3)
Prospectus number: 1932
Merrill Lynch & Co., Inc.
Medium Term Notes, Series B
Due Nine Months or More from Date of Issue
Fixed Rate Notes
Principal Amount: $150,000,000
CUSIP Number: 59018S5G5
Interest Rate: 7.25000%
Original Issue Date: April 4, 2000
Stated Maturity Date: April 4, 2002
Interest Payment Dates: Each April 4th and October 4th, commencing on
October 4, 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: March 30, 2000
