Initial Statement of Beneficial Ownership (3)

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 Estimated average burden hours per response... 0.5
	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 ^*

Teh Ban Seng

2. Date of Event Requiring Statement (MM/DD/YYYY) 1/27/2020

3. Issuer Name and Ticker or Trading Symbol

Seagate Technology plc [STX]

(Last) (First) (Middle)

10200 S DE ANZA BLVD

4. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director _____ 10% Owner
___X___ Officer (give title below) _____ Other (specify below)
SVP, Sales /

(Street)

CUPERTINO, CA 95014

(City) (State) (Zip)

5. 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 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)
Ordinary Shares	10829	D

*Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)*
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivate Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security		6. Nature of Indirect Beneficial Ownership (Instr. 5)
NQ Stock Option	⁽¹⁾	9/11/2021	Ordinary Shares	17250.0	$60.87	D
NQ Stock Option	⁽²⁾	9/9/2022	Ordinary Shares	171.0	$50.1	D
NQ Stock Option	⁽³⁾	9/9/2023	Ordinary Shares	2947.0	$36.09	D
NQ Stock Option	⁽⁴⁾	9/11/2024	Ordinary Shares	2592.0	$30.95	D
Restricted Share Unit	⁽⁵⁾	9/9/2020	Ordinary Shares	1769.0	$0.0	D
Restricted Share Unit	⁽⁶⁾	9/11/2021	Ordinary Shares	1246.0	$0.0	D
Restricted Share Unit	⁽⁷⁾	9/10/2022	Ordinary Shares	5355.0	$0.0	D
Restricted Share Unit	⁽⁸⁾	9/9/2023	Ordinary Shares	9360.0	$0.0	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 September 11, 2015, and the remaining options vested in equal monthly installments over the 36 months following September 11, 2015. The number reported reflects the unexercised options remaining under such grant.
(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 9, 2016, and the remaining options vested in equal monthly installments over the 36 months following September 9, 2016. The number reported reflects the unexercised options remaining under such grant.
(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 9, 2017. Subject to the Reporting Person's continuous employment, the remaining options vest in equal monthly installments over the 36 months following September 9, 2017. The number reported reflects the unvested options remaining under such grant.
(4)	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. The number reported reflects the unvested options remaining under such grant.
(5)	Consists of a grant of restricted share units ("RSUs") awarded to the Reporting Person under the Plan. The RSUs will be converted into Ordinary Shares on a one-for-one basis. Subject to the Reporting Person's continuous employment, such RSUs will be settled in Ordinary Shares in equal installments on each of the first four anniversaries of September 9, 2016. The number reported reflects the unvested RSUs remaining under such grant.
(6)	Consists of a grant of RSUs awarded to the Reporting Person under the Plan. The RSUs will be converted into Ordinary Shares on a one-for-one basis. Subject to the Reporting Person's continuous employment, such RSUs will be settled in Ordinary Shares in equal installments on each of the first four anniversaries of September 11, 2017. The number reported reflects the unvested RSUs remaining under such grant.
(7)	Consists of a grant of RSUs awarded to the Reporting Person under the Plan. The RSUs will be converted into Ordinary Shares on a one-for-one basis. Subject to the Reporting Person's continuous employment, such RSUs will be settled in Ordinary Shares in equal installments on each of the first four anniversaries of September 10, 2018. The number reported reflects the unvested RSUs remaining under such grant.
(8)	Consists of a grant of RSUs awarded to the Reporting Person under the Plan. The RSUs will be converted into Ordinary Shares on a one-for-one basis. Subject to the Reporting Person's continuous employment, such RSUs will be settled in Ordinary Shares in equal installments on each of the first four anniversaries of September 9, 2019. The number reported reflects the unvested RSUs remaining under such grant.

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Teh Ban Seng 10200 S DE ANZA BLVD CUPERTINO, CA 95014			SVP, Sales