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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of report (Date of earliest event reported): April 22, 2003

THORATEC CORPORATION

(Exact name of registrant as specified in its charter)

California

(State of Other Jurisdiction of Incorporation)
     
1-8145   94-2340464
 
(Commission File Number)   (IRS Employer Identification Number)

6035 Stoneridge Drive
Pleasanton, California    94588

(Address of principal executive offices including zip code)

(925) 847-8600

(Registrant’s telephone number, including area code)

Not Applicable

(Former name or former address, if changed since last report)

 

TABLE OF CONTENTS

Item 7. Financial Statements and Exhibits
Item 9. Regulation FD Disclosure
Item 12. Results of Operations and Financial Condition
SIGNATURES
EXHIBIT INDEX
Exhibit 99.1

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Item 7. Financial Statements and Exhibits

(c) Exhibits

         
Exhibit No.   Description
 
99.1
   Press Release dated April 22, 2003

Item 9. Regulation FD Disclosure

     See Item 12

Item 12. Results of Operations and Financial Condition

On April 22, 2003, Thoratec Corporation (the “Company”) issued a press release announcing its fiscal 2003 first quarter results, the text of which is attached hereto as Exhibit 99.1.

The information in this Current Report on Form 8-K, including the exhibit, is furnished pursuant to Item 12 and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities under that Section. Furthermore, the information in the Current Report on Form 8-K, including the exhibit, shall not be deemed to be incorporated by reference into the filings of the Company under the Securities Act of 1933, as amended.

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SIGNATURES

Pursuant to the requirement of the Security Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

     
Date: April 22, 2003    
    THORATEC CORPORATION
     
    By: /s/ M. Wayne Boylston
     
   
M. Wayne Boylston
Senior Vice President, Chief Financial
Officer and Secretary

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EXHIBIT INDEX

     
Exhibit No.   Description
 
99.1   Press Release dated April 22, 2003

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