Form of Common Stock Certificate



 Exhibit 4.1 

 

 

 NUMBER 
 D 
 SHARES 
 OSI SYSTEMS, INC. 
 INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE 
 SEE REVERSE FOR CERTAIN DEFINITIONS 
 COMMON STOCK 
 CUSIP 671044 10 5 
 THIS CERTIFIES THAT: 
 PROOF 
 IS THE OWNER OF 
 FULLY PAID AND NON-ASSESSABLE SHARES OF COMMON STOCK OF $.001 PAR VALUE EACH OF 
 OSI SYSTEMS, INC. 
 transferable on the books of
the Corporation in person or by duly authorized attorney upon surrender of this certificate duly endorsed or assigned. This certificate and the shares represented hereby are subject to the laws of the State of Delaware, and to the Certificate of
Incorporation and By-laws of the Corporation, as now or hereafter amended. This certificate is not valid until countersigned by the Transfer Agent. 
 WITNESS the facsimile seal of the Corporation and the facsimile signatures of its duly authorized officers. 
 DATED: 
 COUNTERSIGNED: 
 STOCKTRANS, INC. 
 44 WEST LANCASTER AVE., ARDMORE, PA 19003 
 TRANSFER AGENT 
 BY: 
 OSI SYSTEMS, INC. 
 CORPORATE 
 SEAL 
 2010 DELAWARE 
 AUTHORIZED SIGNATURE 
 CHIEF FINANCIAL OFFICER

 PRESIDENT 







 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	 	  

	TEN ENT	 	-	 	as tenants by the entireties	 		 		 	(Cust)	 		 	(Minor)
	JT TEN	 	-	 	as joint tenants with right of survivorship and not as tenants in common	 		 		 	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 TYPE NAME AND ADDRESS,
INCLUDING ZIP CODE, OF ASSIGNEE) 
  
  
  
  
  
  

			
	  
	 	Shares

 of the 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 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 WHATSOEVER.

 THE CORPORATION WILL FURNISH TO ANY STOCKHOLDER, UPON REQUEST AND WITHOUT CHARGE, A FULL STATEMENT OF THE
DESIGNATIONS, RELATIVE RIGHTS, PREFERENCES AND LIMITATIONS OF THE SHARES OF EACH CLASS AND SERIES AUTHORIZED TO BE ISSUED, SO FAR AS THE SAME HAVE BEEN DETERMINED, AND OF THE AUTHORITY, IF ANY, OF THE BOARD TO DIVIDE THE SHARES INTO CLASSES OR
SERIES AND TO DETERMINE AND CHANGE THE RELATIVE RIGHTS, PREFERENCES AND LIMITATIONS OF ANY CLASS OR SERIES. SUCH REQUEST MAY BE MADE TO THE SECRETARY OF THE CORPORATION OR TO THE TRANSFER AGENT NAMED ON THIS CERTIFICATE. 
  
 THE SIGNATURE TO THE ASSIGNMENT MUST CORRESPOND TO THE
NAME AS WRITTEN UPON THE FACE OF THIS CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATSOEVER, AND MUST BE GUARANTEED BY A COMMERCIAL BANK OR TRUST COMPANY OR A MEMBER FIRM OF A NATIONAL OR REGIONAL OR OTHER
RECOGNIZED STOCK EXCHANGE IN CONFORMANCE WITH A SIGNATURE GUARANTEE MEDALLION PROGRAM. 
  
 COLUMBIA FINANCIAL PRINTING CORP. - www.stockinformation.com