Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
WATKINS WILLIAM D
   2. Issuer Name and Ticker or Trading Symbol
SEAGATE TECHNOLOGY [STX] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
President and CEO
(Last)
(First)
(Middle)
920 DISC DRIVE, ATTN: STOCK PLAN ADMINISTRATION		 3. Date of Earliest Transaction (Month/Day/Year)
12/01/2004
(Street)

SCOTTS VALLEY, CA 95067		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 12/01/2004   M   10,000 A $ 2.3 11,239 D  
Common Stock 12/01/2004   S   10,000 D $ 15.58 (1) 1,239 D  

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
NQ Stock Option $ 2.3 12/01/2004   M     10,000 11/22/2001(2) 07/24/2011 Common Shares 10,000 $ 2.3 562,174 D  
NQ Stock Option $ 8.22             02/14/2005(3) 02/14/2013 Common Shares 1,500,000   1,500,000 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
WATKINS WILLIAM D
920 DISC DRIVE
ATTN: STOCK PLAN ADMINISTRATION
SCOTTS VALLEY, CA 95067		       President and CEO  

Signatures

 /S/ Roberta S. Cohen for William D. Watkins   12/02/2004
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on April 23, 2004.
(2) Options granted to the Reporting Person under the Issuer's 2001 Share Option Plan are subject to a four-year vesting schedule. One quarter of the option shares vested on November 22, 2001. The remaining option shares vested proportionally each month over the 36 months following November 22, 2001.
(3) Options granted to the Reporting Person under the Issuer's 2001 Share Option Plan are subject to a six-year vesting schedule as follows. 200,000 of the option shares will vest on February 14, 2005. 250,000 option shares will vest proportionally on a monthly basis over the one-year period from February 14, 2005 to February 14, 2006. 300,000 option shares will vest proportionally on a monthly basis over the one-year period from February 14, 2006 to February 14, 2007. 350,000 option shares will vest proportionally on a monthly basis over the one-year period from February 14, 2007 to February 14, 2008. 400,000 option shares will vest proportionally on a monthly basis over the one-year period from February 14, 2008 to February 14, 2009.

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