SEC FORM 3

SEC Form 3

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
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

MOSLEY WILLIAM D

(Last)

(First)

(Middle)

SEAGATE TECHNOLOGY

920 DISC DRIVE

(Street)

SCOTTS VALLEY

96066

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
02/05/2007

3. Issuer Name and Ticker or Trading Symbol
SEAGATE TECHNOLOGY [ STX ]

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 of 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

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

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: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
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

Explanation of Responses:

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.

	/S/ Roberta S. Cohen for William D Mosley	02/05/2007
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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 Number.