Exhibit 4.1 - -------------------------------------------------------------------------------- ------NUMBER------ SM ------------------ - -------------------------------------------------------------------------------- (C) SECURITY COLUMBIAN UNITED STATES BANKNOTE CORPORATION --------SHARES-------- ---------------------- SEE REVERSE FOR CERTAIN DEFINITIONS CUSIP 855546 10 7 [LOGO] STARMEDIA(R) www.starmedia.com INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE - -------------------------------------------------------------------------------- THIS CERTIFIES THAT is the owner of - -------------------------------------------------------------------------------- FULLY PAID AND NON-ASSESSABLE SHARES OF THE PAR VALUE OF $0.001 EACH OF THE COMMON STOCK OF ======================STARMEDIA NETWORK, INC.====================== transferable on 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: /s/ Jack C. Chen President [STAMP] STARMEDIA NETWORK, INC. CORPORATE SEAL 1996 DELAWARE /s/ Fernando J. Espuelas Chairman and Chief Executive Officer COUNTERSIGNED AND REGISTERED: AMERICAN STOCK TRANSFER & TRUST COMPANY (NEW YORK, N.Y.) BY TRANSFER AGENT AND REGISTRAR AUTHORIZED OFFICER The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or regulations: TEN COM -- as tenants in common TEN ENT -- as tenants by the entireties JT TEN -- as joint tenants with right of survivorship and not as tenants in common UNIF GIFT MIN ACT -- ...............Custodian................. (Cust) (Minor) under Uniform Gifts to Minors Act........... (State) Additional abbreviations may also be used though not in the above list. For value received _____________ hereby sell, assign and transfer unto PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE ______________________________________ ______________________________________ ________________________________________________________________________________ (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE) ________________________________________________________________________________ ________________________________________________________________________________ _________________________________________________________________________ shares of the capital stock represented by the within Certificate, and do hereby, irrevocably constitute, and appoint ___________________________________ Attorney to transfer the said stock on the books of the within named Corporation with full power of substitution in the premises. Dated ________________________ ________________________________________________________________________ NOTICE: THE SIGNATURE(S) TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME(S) AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER. Signature(s) Guaranteed: ________________________________________________________________________________ THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATION AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM), PURSUANT TO S.E.C. RULE 17Ad-15.