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)
09/27/2005
(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               116,165 (1) (2) D  
Common Shares               241,146 (3) I Jaroslaw Glembocki 2001 Irrevocable Trust
Common Shares               10,518 (4) I Jaroslaw Glembocki 2001 Children's Trust for the Benefit of Renee Glembocki
Common Shares               10,518 (5) I Jaroslaw Glembocki 2001 Children's Trust for the Benefit of Stefan Glembocki

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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 $ 15.065 09/27/2005   A   100,000   09/27/2006(6) 09/27/2012 Common Shares 100,000 $ 15.065 100,000 D  
NQ Stock Option $ 2.3             11/22/2001(7) 07/24/2011 Common Shares 97,882   97,882 D  
NQ Stock Option $ 9.305             02/03/2004(8) 02/03/2013 Common Shares 750,000   750,000 D  
NQ Stock Option $ 2.3             11/22/2001(7) 07/24/2011 Common Shares 231,683   231,683 I Jaroslaw Glembocki 2001 Revocable Trust

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 Jarolsaw Glembocki   09/29/2005
**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) Includes 989 common shares, par value $0.00001 per share (the "Common Shares") of Seagate Technology (the "Issuer") acquired on January 31, 2005 and 980 Common Shares acquired on July 29, 2005 under the Employee Stock Purchase Plan.
(2) Includes an aggregate of 11,420 Common Shares received by the Reporting Person from New SAC, the largest shareholder of the Issuer, as part of the May 16, 2005 and July 26, 2005 distributions by New SAC of the Issuer's Common Shares to the New SAC shareholders on a pro rata basis in the form of a stock dividend (the "Distributions"). The Reporting Person's receipt of the the Common Shares through the Distributions were exempt from the reporting and liability provisions of Section 16 pursuant to Rule 16a-9.
(3) Represents an aggregate of 241,146 Common Shares received by the Jaroslaw Glembocki 2001 Revocable Trust (the " 2001 Revocable Trust") from New SAC as part of the Distributions. The 2001 Revocable Trust's receipt of the the Common Shares through the Distributions were exempt from the reporting and liability provisions of Section 16 pursuant to Rule 16a-9.
(4) Represents an aggregate of 10,518 Common Shares received by the Jaroslaw Glembocki 2001 Children's Trust for Renee Glembocki (the "Renee Trust") from New SAC as part of the Distributions. The Renee Trust's receipt of the the Common Shares through the Distributions were exempt from the reporting and liability provisions of Section 16 pursuant to Rule 16a-9.
(5) Represents an aggregate of 10,518 Common Shares received by the Jaroslaw Glembocki 2001 Children's Trust for Stefan Glembocki (the "Stefan Trust") from New SAC as part of the Distributions. the Stefan Trust's receipt of the Common Shares through the Distribtutions were exempt from the reporting and liability provisions of Section 16 pursuant to Rule 16a-9.
(6) 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.
(7) 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.
(8) Options granted to the Reporting Person under the Issuer's 2001 Share Option Plan are subject to a five year vesting schedule. One fifth (20%) of the option shares vested on February 3, 2004. The balance of the option shares (80%) are vesting and will continue to vest proportionally each month over the 48 months following February 3, 2004.

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