PROSPECTUS SUPPLEMENT File No. 333-38792
---------------------- Rule 424(b)(3)
(To Prospectus Supplement and Prospectus dated June 16, 2000
and June 15, 2000, respectively)
Prospectus number: 1987
Merrill Lynch & Co., Inc.
Medium-Term Notes, Series B
Due Nine Months or More from Date of Issue
Floating Rate Notes
Principal Amount: $125,000,000 Original Issue Date: June 27, 2000
CUSIP Number: 59018Y AB7 Stated Maturity Date: January 28, 2002
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: 3750
CMT Reuters Page: LIBOR Reuters Page:
Index Maturity: Three Month Minimum Interest Rate: Not Applicable
Spread: 0.0500% Maximum Interest Rate: Not Applicable
Initial Interest Rate: TBD Spread Multiplier: Not Applicable
Interest Reset Dates: Quarterly on the 27th, commencing on October 27th,
2000 through maturity date; subject to modified
following business day convention. The initial
interest rate for the period of June 27, 2000 to
October 27, 2000 will be based on four month Libor
plus the spread.
Interest Payment Dates: Quarterly on the 27th of October, January, April
and July through maturity date; 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: June 22, 2000
