Exhibit 4.2



LOGO



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FoxHollow Technologies, Inc.



THE CORPORATION WILL FURNISH WITHOUT CHARGE TO EACH STOCKHOLDER WHO SO REQUESTS THE POWERS, DESIGNATIONS, PREFERENCES AND
RELATIVE PARTICIPATING, OPTIONAL OR OTHER SPECIAL RIGHTS OF EACH CLASS OF STOCK OR SERIES THEREOF AND THE QUALIFICATIONS, LIMITATIONS OR RESTRICTIONS OF SUCH PREFERENCES AND/OR RIGHTS. SUCH REQUEST MUST BE MADE TO THE CORPORATIONS SECRETARY AT
THE PRINCIPAL EXECUTIVE OFFICE OF THE CORPORATION.



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.



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)                                                       
|               |  |                                                                          |  | 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 OTHERIDENTIFYING 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 |  |  |  |         |  |                                                                                                                                                                                               
|      |  |  | 
|      |  |  |  |         |  |                                                                                                                                                                                               
|      |  |  |  | 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.



SIGNATURES 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.