Exhibit 4.1

CERT.9999 t i , ;,N"I • 1 , ;:!' l ' lf h J • *Jl"lt[ " :JFTiJITiVl'TT! JJiffiTt JmN " Jll'.'FJiJ i Jil , w � Vallon Bio, Inc. INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE THIS CERTIFIES THAT "SPECIMEN• ..9,000,000,000*".. ...9,000,000,000... - •s,000,000,000.. .....9,000,000,000* ......9,000,000,000 CUSIP: 918942202 IS THE REGISTERED HOLDER OF * NINE BILLION AND 001100 * FULLY PAID AND NON - ASSESSABLE COMMON STOCK, PAR VALUE $0.0001 PER SHARE, IN THE CAPITAL OF Valion Bio, Inc. tranarereble on the books of Iha Corporation only upon surrender of this certincate properly endollllld. Thia certificate Is not valid unUJ counlenltgned by the Trensrer Agent and Registrar ofthe CorporaUon. IN WITNESS WHEREOF the Corporation has caused lhls certificate lo be signed on Its behelf by the facsimile signatures of Its duly authorized officers. President Secretary COUNTERSIGNED AND REGISTERED ODYSSEY TRANSFER AND TRUST COMPANY TRANSFER AGENT & REGISTRAR Aulhoriz ε Tile shores represented by lhitl oortlflcale ere lransfereble el the offices of Odyssey Trensler end True! Company. Eagen, MN AMERJCAN FINANCIAL PRINI'ING INCORPORATED - MINNEAPOLIS 1629

The corporation will furnish to any shareholder on request, in writing and without charge, a summary of the designations, relative rights, preferences and limitations applicable to each class of shares the corporation is authorized to issue, and the variations in rights, preferences and limitations determined for each series and the authorityof the board of directors to determine variations for future series . 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 entireties UTMA - Custodian JTTEN - as joint tenants with right of survivorship and not as tenants in common (Gust) (Minor) under Uniform Transfers to Minors Act _ (State) Additional abbreviations may also be used though not in the above list. !?Tor - � receio - ed - � .re/4 ௭ PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE muiowy/e;"tulh (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS INCLUDING ZIP CODE OF ASSIGNEE) J � ff tk cojJdd � � � tk � (J � and ���� and a}jwuz b _ � to, � t k &lid � Oll / tk � ff tk toitfwv - aamed {Jo,/f)tJ - 1'•atiot v coidJid t � ff � u t h v t 7 j 11 • em u & /. X X NOTICE: Tl - IE SIGNAlURE TO THIS ASSIGNMENT MUST CORRESPOND wm - 1THE NAME AS WRITTEN UPON Tl - IE FACE OF TI - IE CERTIRCATE IN EVB=I.Y PARTICULAR WITHOUT ALTERAllON OR ENLARGEMENT OR /J,J,N CHANGE WHATEVER , SIGNATURE GUARANTEED ALL GUARANTEES MUST BE MADE BY A FINANCIAL INSlTTI . JTION (SUCH AS A BANK OR BROKER) WHICH IS A PARTICIPANT IN THE SECURmES TRANSFER AGENTS MEDAWON PROGRAM ("STAMP"), THE NEW YORK STOCK EXCHANGE, INC . MEDAWON SIGNATURE PROGRAM {uMSPj, OR THE STOCK EXCHANGES MEDAUJON PROGRAM ("SEMP") AND MUST NOT BE DATED . GUARANTEES BY A NOTARY PUBLIC ARE NOT ACCEPTABLE .