Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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 *
  Whitmore Robert W
2. Date of Event Requiring Statement (Month/Day/Year)
11/29/2004
3. Issuer Name and Ticker or Trading Symbol
SEAGATE TECHNOLOGY [STX]
(Last)
(First)
(Middle)
SEAGATE TECHNOLOGY, 920 DISC DRIVE
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Sr. Vice President
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

SCOTTS VALLEY, CA 95066
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 Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
NQ Stock Option 11/22/2001(1) 07/24/2011 Common Shares 64,435 $ 2.3 D  
NQ Stock Option 01/31/2006(2) 01/31/2012 Common Shares 250,000 $ 5 D  
NQ Stock Option 09/16/2003(3) 09/16/2012 Common Shares 100,000 $ 10 D  
NQ Stock Option 09/16/2006(4) 09/16/2012 Common Shares 150,000 $ 10 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Whitmore Robert W
SEAGATE TECHNOLOGY
920 DISC DRIVE
SCOTTS VALLEY, CA 95066
      Sr. Vice President  

Signatures

/S/ Roberta S. Cohen for Robert W Whitmore 12/03/2004
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) 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 balance of the option shares vested proportionally over the 36 months following November 22, 2001.
(2) Options granted to the Reporting Person under the Issuer's 2001 Share Option Plan are subject to a five year vesting schedule. One quarter of the option shares vested on January 31, 2006. The balance of the option shares will vest on January 31, 2007.
(3) Options granted to the Reporting Person under the Issuer's 2001 Share Option Plan are subject to a five-year vesting schedule. 20% of the option shares vested on September 16 2003. The remaining option shares are vesting and will continue to vest proportionally each month over the 48 months following September 16, 2003.
(4) Options granted to the Reporting Person under the Issuer's 2001 Share Option Plan are subject to a five-year vesting schedule. 20% of the option shares will vest on September 16, 2006. The remaining option shares will vest on September 16, 2007.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

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