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 *
Anderson David Z
   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)
VP, Finance, Treasurer & PAO
(Last)
(First)
(Middle)
SEAGATE TECHNOLOGY, 920 DISC DRIVE		 3. Date of Earliest Transaction (Month/Day/Year)
09/15/2009
(Street)

SCOTTS VALLEY, CA 95066		 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 09/15/2009   S   290 (1) D $ 15.3616 3,043 (2) 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

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Anderson David Z
SEAGATE TECHNOLOGY
920 DISC DRIVE
SCOTTS VALLEY, CA 95066		       VP, Finance, Treasurer & PAO  

Signatures

 /s/ Roberta S Cohen for David Z Anderson   09/17/2009
**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) Shares sold pursuant to vesting provisions under the restricted stock unit award issued on September 11, 2008.Shares sold to pay tax liabilities resulting from the vesting of Restricted Stock Units issued on September 11, 2009, the terms of which are described in greater detail in footnote 2. The sale was effected pursuant to a Rule 10b5-1 trading plan.
(2) Consists of a grant of restricted stock units awarded to the Reporting Person under the 2004 Stock Compensation Plan for no consideration. Each restricted stock unit represents a contingent right to receive one share of Seagate common stock. Subject to the Reporting Person's Continuous Service with the Company, vested shares to be released to the reporting person on each of the first four anniversaries of the vesting commencement date of September 11, 2008. As of September 15, 2009, 833 shares have been released, including the sale of the 290 shares as disclosed in this Form 4, and 2,500 shares remain subject to vesting.

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