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 *
  MOSLEY WILLIAM D
2. Date of Event Requiring Statement (Month/Day/Year)
02/05/2007
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)
SVP, GLOBAL DISC OPS
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

SCOTTS VALLEY, CA 96066
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)
Common Shares 7,119.5977
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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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 Options 09/16/2003 09/16/2012 Common Shares 7,293 (1) $ 0 D  
NQ Stock Options 04/11/2004 04/11/2013 Common Shares 23,835 (2) $ 0 D  
NQ Stock Options 09/16/2005 09/16/2011 Common Shares 64,501 (3) $ 0 D  
NQ Stock Options 09/27/2006 09/27/2012 Common Shares 100,000 (4) $ 0 D  
NQ Stock Options 04/27/2007 04/27/2013 Common Shares 250,000 (5) $ 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
MOSLEY WILLIAM D
SEAGATE TECHNOLOGY
920 DISC DRIVE
SCOTTS VALLEY, CA 96066
      SVP, GLOBAL DISC OPS  

Signatures

/S/ Roberta S. Cohen for William D Mosley 02/05/2007
**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 September 16, 2003. The remaining option shares vested proportionally each month over the 36 months following September 16, 2003.
(2) Options granted to the Reporting Person under the Issuer's 2001 Share Option Plan are subject to a five-year vesting schedule. One fifth of the option shares vested on April 11, 2004. The remaining option shares vest proportionally each month over the 48 months following April 11, 2004.
(3) 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 September 16, 2005. The remaining option shares vest proportionally each month over the 48 months following September 16, 2005.
(4) Options granted to the Reporting Person under the Issuer's 2004 Stock Compensation Plan are subject to a four-year vesting schedule. One quarter of the option shares vested on September 27, 2006. The remaining option shares will vest proportionally each month over the 36 months following September 27, 2006.
(5) Options granted to the Reporting Person under the Issuer's 2001 Share Option Plan are subject to a five-year vesting schedule. One fifth of the option shares will vest on April 27, 2010. The remaining option shares will vest on April 27, 2011.

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