further develop our technology to enable the development of our potential products

EX-4.1 2 f97636a3exv4w1.txt EXHIBIT 4.1 COMMON STOCK COMMON STOCK NNSY- (NANOSYS LOGO) INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE THIS CERTIFICATE IS TRANSFERABLE CUSIP 63008W 10 9 IN CANTON, MA, JERSEY CITY, NJ OR NEW YORK, NY SEE REVERSE FOR CERTAIN DEFINITIONS THIS CERTIFIES THAT IS THE OWNER OF FULLY PAID AND NONASSESSABLE SHARES OF COMMON STOCK, $0.001 PAR VALUE, OF NANOSYS, INC. transferable on the books of the Corporation by the holder hereof in person or by duly authorized attorney upon the surrender of this certificate properly endorsed. This certificate is not valid until countersigned by the Transfer Agent and registered by the Registrar. WITNESS the facsimile seal of the Corporation and the facsimile signatures of its duly authorized officers. (CORPORATE SEAL) Dated: /s/ Michael O'Donnell /s/ Lawrence A. Bock Secretary Executive Chairman of the Board COUNTERSIGNED AND REGISTERED EQUISERVE TRUST COMPANY, N.A. TRANSFER AGENT AND REGISTRAR /s/ Stephen Cesso AUTHORIZED SIGNATURE NANOSYS, INC. - -------------------------------------------------------------------------------- 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) UNIF TRF MIN ACT- _______Custodian (until age___________) (Cust) ________________________ under Uniform Transfers (Minor) 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 Common Stock represented by the within Certificate, and do(es) 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 _________________________ X _____________________________________ X _____________________________________ 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: By___________________________________________ THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM), PURSUANT TO S.E.C. RULE 17Ad-15. KEEP THIS CERTIFICATE IN A SAFE PLACE. IF IT IS LOST, STOLEN OR DESTROYED, THE CORPORATION WILL REQUIRE A BOND OF INDEMNITY AS A CONDITION TO THE ISSUANCE OF A REPLACEMENT CERTIFICATE.