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 *
GLEMBOCKI JERRY S
   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)
Sr. VP Heads and Media
(Last)
(First)
(Middle)
920 DISC DRIVE, ATTN: STOCK PLAN ADMINISTRATION		 3. Date of Earliest Transaction (Month/Day/Year)
08/21/2006
(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 Shares 08/21/2006   S   100,000 D $ 21.0165 635,999 I Jaroslaw Glembocki 2001 Irrevocable Trust
Common Shares 08/21/2006   S   10,000 D $ 21 21,551 I Jaroslaw Glembocki 2001 Children's Trust
Common Shares 08/21/2006   S   10,000 D $ 21 21,551 I Jaroslaw Glembocki 2001 Children's Trust
Common Shares               97,753 (4) D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Options $ 2.3             11/22/2001(1) 07/24/2011 Common Shares 169,565   169,565 I Jaroslaw Glembocki 2001 Revocable Trust
NQ Stock Options $ 9.305             02/03/2004(2) 02/03/2013 Common Shares 300,012   300,012 D  
NQ Stock Options $ 9.305             02/03/2004(2) 02/03/2013 Common Shares 449,998   449,988 I Jaroslaw Glembocki 2001 Revocable Trust
NQ Stock Options $ 15.065             09/27/2006(3) 09/27/2012 Common Shares 100,000   100,000 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
GLEMBOCKI JERRY S
920 DISC DRIVE
ATTN: STOCK PLAN ADMINISTRATION
SCOTTS VALLEY, CA 95067		       Sr. VP Heads and Media  

Signatures

 /S/ Roberta S. Cohen for Jaroslaw S. Glembocki   08/23/2006
**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) 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.
(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 February 3, 2004. The remaining option shares are vesting and will continue to vest proportionally each month over the 48 months following February 3, 2004.
(3) 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 will vest on September 27, 2006. The remaining option shares will vest proportionally each month over the 36 months following September 27, 2006.
(4) Includes 422 common shares, par value $0.00001 per share (the "Common Shares") of Seagate Technology (the "Issuer") received by the Report Person under the Issuer's Employee Stock Purchase Plan at $16.218 per share on 31 July 2006.

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