PROSPECTUS SUPPLEMENT File No. 333-68747
(To Prospectus and Prospectus Supplement dated May 6, 1999) Rule 424(b)(3)
Prospectus number: 1970
Merrill Lynch & Co., Inc.
Medium Term Notes, Series B
Due Nine Months or More from Date of Issue
Floating Rate Notes
Principal Amount: $60,000,000 Original Issue Date: May 18, 2000
CUSIP Number: 59018S 6V1 Stated Maturity Date: May 18, 2001
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:
[ ] LIBOR [ ] Commercial Paper Rate
[ ] CMT Rate [ ] Eleventh District Cost of Funds Rate
[ ] Prime Rate [ ] CD Rate
[X] 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 Reuter Page:
<TABLE>
<CAPTION>
<S> <C> <C> <C>
Index Maturity: Daily Fed Funds Effective Minimum Interest Rate: Not Applicable
Spread: 0.160% Maximum Interest Rate: Not Applicable
Initial Interest Rate: TBD Spread Multiplier: Not Applicable
</TABLE>
Interest Reset Dates: Daily, subject to the following business day
convention.
Interest Payment Dates: Quarterly, on the 18th of August, November, February
and at Maturity, subject to the 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 15, 2000
