STX Seagate Technology Holdings PLC

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                                                                                   
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940                       

1. Name and Address of Reporting Person * MURPHY JAMES J	2. Issuer Name and Ticker or Trading Symbol Seagate Technology plc [ STX ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director                    _____ 10% Owner __X__ Officer (give title below)    _____ Other (specify below) EVP, Sales & Marketing
(Last)          (First)          (Middle) 10200 S. DEANZA BOULEVARD	3. Date of Earliest Transaction (MM/DD/YYYY) 11/21/2019
(Street) CUPERTINO, CA 95014 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	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 Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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	11/21/2019		M		8308	A	$38.76	36685	D
Ordinary Shares	11/21/2019		S		8308	D	$59.3402	28377	D
Ordinary Shares	11/22/2019		M		1822	A	$30.95	30199	D
Ordinary Shares	11/22/2019		M		1390	A	$50.29	31589	D
Ordinary Shares	11/22/2019		S		3212	D	$59.0228	28377	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		7. Title and Amount of Securities Underlying Derivative Security (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 Grant	$38.76	11/21/2019		M			8308	12/20/2017 (1)	12/20/2023	Ordinary Shares	8308.0	$0	108002	D
NQ Stock Option Grant	$30.95	11/22/2019		M			1822	9/11/2018 (2)	9/11/2024	Ordinary Shares	1822.0	$0	40073	D
NQ Stock Option Grant	$50.29	11/22/2019		M			1390	9/10/2019 (3)	9/10/2025	Ordinary Shares	1390.0	$0	47263	D

Explanation of Responses:
(1)	Options granted to the Reporting Person under the Seagate Technology plc 2012 Equity Incentive Plan (the "Plan") are subject to a four-year vesting schedule. One-quarter of the options vested on December 20, 2017. Subject to the Reporting Person's continuous employment, the remaining options vest in equal monthly installments over the 36 months following December 20, 2017.
(2)	Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One quarter of the options vested on September 11, 2018. Subject to the Reporting Person's continuous employment, the remaining options vest in equal monthly installments over the 36 months following September 11, 2018.
(3)	Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter of the options vested on September 10, 2019. Subject to the Reporting Person's continuous employment, the remaining options vest in equal monthly installments over the 36 months following September 10, 2019.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
MURPHY JAMES J 10200 S. DEANZA BOULEVARD CUPERTINO, CA 95014			EVP, Sales & Marketing

Signatures
/s/ Roshen Prasad Attorney-in-Fact for James J. Murphy		11/25/2019
**Signature of Reporting Person		Date