EX-4.1



 Exhibit 4.1 

.




 
 ZQ|CERT#|COY|CLS|RGSTRY|ACCT#|TRANSTYPE|RUN#|TRANS# 
COMMON STOCK 
PAR VALUE $.001 
ARIAD 
COMMON STOCK 
THIS CERTIFICATE IS TRANSFERABLE IN CANTON, MA, JERSEY CITY, NJ AND COLLEGE STATION, TX

Certificate Number 
ZQ00000000 
THIS CERTIFIES THAT 
ARIAD PHARMACEUTICALS, INC. INCORPORATED UNDER THE LAWS OF THE STATE OF
DELAWARE 
MR. SAMPLE & MRS. SAMPLE & MR. SAMPLE & MRS. 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. Alexander David Sample **** Mr. Sample **** Mr. Sample 
is the owner of 
***ZERO HUNDRED THOUSAND ZERO HUNDRED AND ZERO*** 
**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 
Shares

* * 000000* * * * * * * * * * * * * * * * * * 
* * * 000000* * * * * * * * * *
* * * * * * * 
* * * * 000000* * * * * * * * * * * * * * * * 
* * * * * 000000*
* * * * * * * * * * * * * * 
* * * * * * 000000* * * * * * * * * * * * * *

CUSIP 04033A 10 0 
SEE REVERSE FOR CERTAIN DEFINITIONS 
FULLY PAID AND NON-ASSESSABLE SHARES OF THE COMMON STOCK, $.001 PAR VALUE, OF 
ARIAD
Pharmaceuticals, Inc. transferable only 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 and the shares of Common Stock represented
hereby are received and held subject to the laws of the State of Delaware and to the Certificate of Incorporation and the Bylaws of the Corporation, each as from time to time amended, and the owner of this certificate by accepting the same expressly
assents thereto. This certificate is not valid unless countersigned by the Transfer Agent. 
IN WITNESS WHEREOF, the Corporation has caused this certificate to be
signed by the facsimile signatures of its duly authorized officers and a facsimile of its corporate seal to be hereunto affixed. 
President and Chief Executive
Officer 
Executive Vice President, Chief Financial Officer and Treasurer 
ARIAD
PHARMACEUTICALS, INC. 
CORPORATE 
SEAL 
1991 
DELAWARE 
DATED DD-MMM-YYYY 
COUNTERSIGNED AND REGISTERED: 
COMPUTERSHARE TRUST COMPANY, N.A. 
TRANSFER AGENT AND REGISTRAR, 
By 
AUTHORIZED SIGNATURE 
SECURITY INSTRUCTIONS ON REVERSE 
1234567 
Printed by DATA BUSINESS FORMS 
ARIAD 
PO BOX 43004, Providence, RI 02940-3004 
MR A SAMPLE 
DESIGNATION (IF ANY) 
ADD 1 
ADD 2 
ADD 3 
ADD 4 
CUSIP XXXXXX XX X 
Holder ID XXXXXXXXXX 
Insurance Value 1,000,000.00 
Number of Shares 123456 
DTC 12345678 123456789012345 
Certificate Numbers Num/No. Denom. Total 
1234567890/1234567890 1 1 1 
1234567890/1234567890 2 2 2 
1234567890/1234567890 3 3 3 
1234567890/1234567890 4 4 4 
1234567890/1234567890 5 5 5 
1234567890/1234567890 6 6 6 
Total Transaction 7 







  

ABBREVIATIONS 

 

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 and not as tenants in common
	  	UNIF TRF MIN ACT	 	                            Custodian (until age   
 )                        	 	
		 	  		 	          (Cust)                          
                          (Minor)	 	
		 	  		 	under Uniform Transfers to Minors Act                         
 	 	
		 	  		 	                                     
                                   (State)	 	
		 	Additional abbreviations may also be used though not in the above list.	 	


 
 ASSIGNMENT 
  

			
		  	PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE
	 For value received,
                                 hereby sell, assign and transfer unto
	  	 

  
  

(PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING POSTAL ZIP CODE, OF ASSIGNEE) 
  

 
  

 

			
	  
	 	Shares

 of the common stock ordinary shares 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 Company with full power of substitution in the premises. 

 

									
	Dated:	 	                                    
                          20              
 	 		  	
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.
  
  

 

	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.