EXHIBIT 4(uuuu) Merrill Lynch & Co. Inc. [LOGO] Common Stock See reverse for certain definitions Incorporated under the laws of the State of Delaware. /s/ /s/ Secretary Chairman of the Board [SEAL] NUMBER SHARES K This Certifies that SEE LEGEND ON REVERSE SIDE is the owner of [CUSIP 590188 10 8] COMMON fully paid and nonassessable shares of Common Stock of Merrill Lynch & Co., Inc., transferable upon the books of the Corporation by the holder hereof in person or by duly authorized attorney upon surrender of this Certificate properly endorsed. This Certificate is not valid unless countersigned and registered by the Transfer Agent and Registrar. Witness the facsimile seal of the Corporation and the facsimile signatures of its duly authorized officers. Dated: (C) SECURITY-COLUMBIAN UNITED STATES BANKNOTE COMPANY Countersigned and Registered: /s/ --------------------- Transfer Agent and Registrar: ChaseMellon Shareholder Services, L.L.C. Authorized Signature: This certificate also evidences and entitles the holder hereof to certain Rights as set forth in the Rights Agreement between Merrill Lynch & Co., Inc. (the "Company") and Chemical Bank (the "Rights Agent") dated as of December 16, 1987 (the "Rights Agreement"), the terms of which are hereby incorporated herein by reference and a copy of which is on file at the principal office of the stock transfer administration office of the Rights Agent. Under certain circumstances, as set forth in the Rights Agreement, such Rights will be evidenced by separate certificates and will no longer be evidenced by this certificate. The Rights Agent will mail to the holder of this certificate a copy of the Rights Agreement, as in effect on the date of mailing, without charge promptly after receipt of a written request therefor. Under certain circumstances set forth in the Rights Agreement, Rights issued to, or held by, any Person who is, was or becomes an Acquiring Person or any Affiliate or Associate thereof (as such terms are defined in the Rights Agreement), whether currently held by or on behalf of such Person or by any subsequent holder, may become null and void. ChaseMellon Shareholder Services, L.L.C. is successor to Chemical Bank as Rights Agent. MERRILL LYNCH & CO. INC. - -------------------------------------------------------------------------------- The Corporation will furnish without charge to each stockholder who so requests the powers, designations, preferences and relative, participating, optional or other special rights of each class of stock or series thereof of the Corporation, and the qualifications, limitations or restrictions of such preferences and/or rights. Such request may be made to the Corporation or to the Transfer Agent or Registrar. EXPLANATION OF ABBREVIATIONS The following abbreviations when used in the form of ownership on the face of this certificate shall be construed as though they were written out in full according to applicable laws or regulations. Abbreviations in addition to those appearing below may be used.