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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1. Name and Address of Reporting Person * LUCZO STEPHEN J   2. Issuer Name and Ticker or Trading Symbol Seagate Technology plc [STX] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chairman, President and CEO (Last) (First) (Middle) SEAGATE TECHNOLOGY PLC, 10200 S. DE ANZA BOULEVARD 3. Date of Earliest Transaction (Month/Day/Year) 07/23/2013 (Street) CUPERTINO, CA 95014 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 Ordinary Shares 12/27/2012   G V 29,985 (1) A $ 0 1,803,850 I Stephen J Luczo Revocable Trust Ordinary Shares 02/04/2013   G V 37,500 (2) A $ 0 1,841,350 I Stephen J Luczo Revocable Trust Ordinary Shares 04/12/2013   G V 3,075 (3) A $ 0 1,844,425 I Stephen J Luczo Revocable Trust Ordinary Shares 05/30/2013   G V 50,000 D $ 0 1,794,425 I Stephen J Luczo Revocable Trust Ordinary Shares 12/27/2012   G V 150,000 (4) D $ 0 0 I Red Zone Holdings Limited Partnership Ordinary Shares 12/27/2013   G V 150,000 (5) D $ 0 0 I Red Zone Holdings II Limited Partnership Ordinary Shares 02/04/2013   G V 37,500 (2) D $ 0 115,205 (6) D   Ordinary Shares 04/12/2013   G V 3,075 (3) D $ 0 112,130 D   Ordinary Shares 07/23/2013   A   21,585 (7) A $ 0 133,715 D   Ordinary Shares 07/23/2013   A   65,000 (8) D $ 0 198,715 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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
LUCZO STEPHEN J SEAGATE TECHNOLOGY PLC 10200 S. DE ANZA BOULEVARD CUPERTINO, CA 95014	X		Chairman, President and CEO

Signatures

/S/ Roberta S. Cohen by power of attorney		07/25/2013
**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)	On December 27, 2012, 15,360 Ordinary Shares previously held by the Red Zone Holdings Limited Partnership and 14,625 Ordinary Shares previously held by the Red Zone Holdings II Limited Partnership were contributed to the Stephen J Luczo Revocable Trust.
(2)	On February 4, 2013, the Reporting Person transferred 37,500 Ordinary Shares previously owned directly to the Stephen J Luczo Revocable Trust.
(3)	On April 12, 2013, the Report Person transferred 3,075 Ordinary Shares previously owned directly to the Stephen J Luczo Revocable Trust.
(4)	On December 27, 2012, 1,575 Ordinary Shares were distributed to the Reporting Person and are now held directly, 15,360 Ordinary Shares were distributed to the Stephen J Luczo Revocable Trust and 133,065 Ordinary Shares were gifted to third parties.
(5)	On December 27, 2012, 1,500 Ordinary Shares were distributed to the Reporting Person and are now held directly, 14,625 Ordinary Shares were distributed to the Stephen J Luczo Revocable Trust and 133,875 Ordinary Shares were gifted to third parties.
(6)	Includes 1,575 Ordinary Shares previously held by Red Zone Holdings Limited Partnership 2012 and 1,500 Ordinary Shares previously held by Red Zone II Limited Partnership, which were distributed to the Reporting Person on December 27, 2012 and are now owned directly.
(7)	On July 23, 2013, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 21,585 of the 86,340 Performance Shares granted to Mr. Luczo on August 1, 2012. The 21,585 Ordinary Shares will vest on August 1, 2013, subject to continuous service through such date.
(8)	On July 23, 2013, the Compensation Committee of the Board of Directors of the Issuer determined that the performance conditions were met with respect to 65,000 of the 260,000 Performance Share Units granted to Mr. Luczo on September 12, 2011. The 65,000 Ordinary Shares will vest on September 12, 2013 (or, in certain circumstances, at the opening of the next following trading window), subject to continuous service through such date.

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