Ownership Submission
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, 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 *
  Rolchigo Philip M.
 2. Date of Event Requiring Statement (Month/Day/Year)
06/04/2018		 3. Issuer Name and Ticker or Trading Symbol
PENTAIR plc [PNR]
(Last)
(First)
(Middle)
5500 WAYZATA BLVD., SUITE 800		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
EVP & Chief Technology Officer
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

GOLDEN VALLEY, MN 55416		 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 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 2,165
D
 
Common Shares - Restricted Stock Units 15,697.8
D
 
Common Shares 61.5624
I
By 401(k) Plan

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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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 of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (right to buy)   (2) 01/02/2023 Common Shares 2,531 $ 33.72 D  
Stock Option (right to buy)   (2) 03/03/2024 Common Shares 2,427 $ 53.49 D  
Stock Option (right to buy)   (2) 03/02/2025 Common Shares 3,588 $ 44.11 D  
Stock Option (right to buy)   (1) 03/01/2026 Common Shares 6,493 $ 32.75 D  
Stock Option (right to buy)   (1) 03/01/2027 Common Shares 5,467 $ 39.88 D  
Stock Option (right to buy)   (1) 05/02/2028 Common Shares 12,213 $ 45.42 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Rolchigo Philip M.
5500 WAYZATA BLVD., SUITE 800
GOLDEN VALLEY, MN 55416		       EVP & Chief Technology Officer  

Signatures

/s/ John K. Wilson, Attorney-in-Fact for Philip M. Rolchigo 06/04/2018
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) One-third of the stock options become exercisable on the first, second and third anniversary of the grant.
(2) This option is presently exercisable in full.

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