Exhibit
4.1




	
  

  	
  THIS CERTIFIES
  THAT is the owner of CUSIP DATED COUNTERSIGNED AND REGISTERED: COMPUTERSHARE
  TRUST COMPANY, N.A. TRANSFER AGENT AND REGISTRAR, FULLY-PAID AND
  NON-ASSESSABLE SHARES OF COMMON STOCK OF Jaguar Animal Health, Inc.
  (hereinafter called the “Company”), transferable on the books of the Company
  in person or by duly authorized attorney, upon surrender of this Certificate
  properly endorsed. This Certificate and the shares represented hereby, are
  issued and shall be held subject to all of the provisions of the Certificate
  of Incorporation, as amended, and the By-Laws, as amended, of the Company
  (copies of which are on file with the Company and with the Transfer Agent),
  to all of which each holder, by acceptance hereof, assents. This Certificate
  is not valid unless countersigned and registered by the Transfer Agent and
  Registrar. Witness the facsimile seal of the Company and the facsimile
  signatures of its duly authorized officers. COMMON STOCK PAR VALUE $0.0001
  COMMON STOCK THIS CERTIFICATE IS TRANSFERABLE IN CANTON, MA, JERSEY CITY, NJ
  AND COLLEGE STATION, TX SEE REVERSE FOR CERTAIN DEFINITIONS Certificate
  Number Shares JAGUAR ANIMAL HEALTH, INC. INCORPORATED UNDER THE LAWS OF THE
  STATE OF DELAWARE President and CEO Secretary By AUTHORIZED SIGNATURE 2013
  DELAWARE JAGUAR ANIMAL HEALTH, INC. 47008L 10 6 DD-MMM-YYYY * * 000000* * * *
  * * * * * * * * * * * * * * * * * 000000* * * * * * * * * * * * * * * * * * *
  * * 000000* * * * * * * * * * * * * * * * * * * * * 000000* * * * * * * * * *
  * * * * * * * * * * * 000000* * * * * * * * * * * * * * ** Mr. Alexander
  David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample
  **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr.
  Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander
  David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample
  **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr.
  Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David
  Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample ****
  Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander
  David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample
  **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr.
  Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander
  David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample
  **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr.
  Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander
  David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample
  **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr.
  Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander
  David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample
  **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr.
  Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander
  David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample
  **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr.
  Sample **** Mr. Sample **000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares***
  *000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****
  000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****0
  00000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****00
  0000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000
  000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****0000
  00**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****00000
  0**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000
  **Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000*
  *Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**
  Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**S
  ***ZERO HUNDRED THOUSAND ZERO HUNDRED AND ZERO*** MR. SAMPLE & MRS.
  SAMPLE & MR. SAMPLE & MRS. SAMPLE ZQ00000000 

  






 















	
  

  	
  The IRS
  requires that we report the cost basis of certain shares acquired after
  January 1, 2011. If your shares were covered by the legislation and you have
  sold or transferred the shares and requested a specific cost basis
  calculation method, we have processed as requested. If you did not specify a
  cost basis calculation method, we have defaulted to the first in, first out
  (FIFO) method. Please visit our website or consult your tax advisor if you
  need additional information about cost basis. If you do not keep in contact
  with us or do not have any activity in your account for the time periods
  specified by state law, your property could become subject to state unclaimed
  property laws and transferred to the appropriate state. For value received,
  ____________________________hereby sell, assign and transfer unto
  _______________________________________________________________________________________________________________________________
  _______________________________________________________________________________________________________________________________
  _______________________________________________________________________________________________________________________________
  _______________________________________________________________________________________________________________________
  Shares _______________________________________________________________________________________________________________________
  Attorney Dated:
  __________________________________________20__________________ Signature:
  ____________________________________________________________ Signature:
  ____________________________________________________________ Notice: The
  signature to this assignment must correspond with the name as written upon
  the face of the certificate, in every particular, without alteration or
  enlargement, or any change whatever. PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING
  NUMBER OF ASSIGNEE (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING
  POSTAL ZIP CODE, OF ASSIGNEE) of the common stock represented by the within
  Certificate, and do hereby irrevocably constitute and appoint to transfer the
  said stock on the books of the within-named Company with full power of
  substitution in the premises. . JAGUAR ANIMAL HEALTH, INC. THE COMPANY WILL
  FURNISH WITHOUT CHARGE TO EACH STOCKHOLDER WHO SO REQUESTS, A SUMMARY OF THE
  POWERS, DESIGNATIONS, PREFERENCES AND RELATIVE, PARTICIPATING, OPTIONAL OR
  OTHER SPECIAL RIGHTS OF EACH CLASS OF STOCK OF THE COMPANY AND THE
  QUALIFICATIONS, LIMITATIONS OR RESTRICTIONS OF SUCH PREFERENCES AND RIGHTS,
  AND THE VARIATIONS IN RIGHTS, PREFERENCES AND LIMITATIONS DETERMINED FOR EACH
  SERIES, WHICH ARE FIXED BY THE CERTIFICATE OF INCORPORATION OF THE COMPANY,
  AS AMENDED, AND THE RESOLUTIONS OF THE BOARD OF DIRECTORS OF THE COMPANY, AND
  THE AUTHORITY OF THE BOARD OF DIRECTORS TO DETERMINE VARIATIONS FOR FUTURE
  SERIES. SUCH REQUEST MAY BE MADE TO THE OFFICE OF THE SECRETARY OF THE
  COMPANY OR TO THE TRANSFER AGENT. THE BOARD OF DIRECTORS MAY REQUIRE THE
  OWNER OF A LOST OR DESTROYED STOCK CERTIFICATE, OR HIS LEGAL REPRESENTATIVES,
  TO GIVE THE COMPANY A BOND TO INDEMNIFY IT AND ITS TRANSFER AGENTS AND
  REGISTRARS AGAINST ANY CLAIM THAT MAY BE MADE AGAINST THEM ON ACCOUNT OF THE
  ALLEGED LOSS OR DESTRUCTION OF ANY SUCH CERTIFICATE. Signature(s) Guaranteed:
  Medallion Guarantee Stamp THE SIGNATURE(S) SHOULD 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. 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 UNIF GIFT MIN
  ACT - Custodian (Cust) (Minor) TEN ENT - as tenants by the entireties under
  Uniform Gifts to Minors Act (State) JT TEN - as joint tenants with right of
  survivorship UNIF TRF MIN ACT - Custodian (until age ) and not as tenants in
  common (Cust) under Uniform Transfers to Minors Act (Minor) (State)
  Additional abbreviations may also be used though not in the above list.