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 * GARDEN EDWARD P   2. Issuer Name and Ticker or Trading Symbol PENTAIR plc [PNR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner _____ Officer (give title below) __X__ Other (specify below) Please see remarks below (Last) (First) (Middle) 280 PARK AVENUE, 41ST FLOOR 3. Date of Earliest Transaction (Month/Day/Year) 11/10/2015 (Street) NEW YORK, NY 10017 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) ___ Form filed by One Reporting Person _X_ 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 11/10/2015   P   82,100 A $ 56.8507 (1) 13,352,477 I Please see explanation below (2) (3) Ordinary Shares 11/11/2015   P   142,300 A $ 56.8828 (4) 13,494,777 I Please see explanation below (2) (3) Ordinary Shares 11/12/2015   P   64,500 A $ 55.9803 (5) 13,559,277 I Please see explanation below (2) (3) Ordinary Shares 11/12/2015   P   20,000 A $ 54.9302 (6) 13,579,277 I Please see explanation below (2) (3) Ordinary Shares 11/12/2015   P   102,600 A $ 55.8396 (7) 13,681,877 I Please see explanation below (2) (3)

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
GARDEN EDWARD P 280 PARK AVENUE, 41ST FLOOR NEW YORK, NY 10017				Please see remarks below
TRIAN FUND MANAGEMENT, L.P. 280 PARK AVENUE, 41ST FLOOR NEW YORK, NY 10017				Please see remarks below

Signatures

Daniel R. Marx, Attorney-In-Fact for Edward P. Garden		11/12/2015
**Signature of Reporting Person		Date
Daniel R. Marx, Attorney-In-Fact for Edward P. Garden, member of the general partner of Trian Fund Management, L.P.		11/12/2015
**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)	The price shown in Column 4 is a weighted average purchase price. The price range for the purchases is $56.41 to $56.96. The Reporting Persons undertake to provide upon request by the staff of the Securities and Exchange Commission, the Issuer or a security holder of the Issuer, full information regarding the number of shares purchased at each separate price.
(2)	Trian Fund Management, L.P ("Trian Management") serves as the management company for Trian Partners, L.P., Trian Partners Master Fund, L.P., Trian Partners Master Fund (ERISA), L.P., Trian Partners Parallel Fund I, L.P., Trian Partners Strategic Investment Fund II, L.P., Trian Partners Strategic Investment Fund-A, L.P., Trian Partners Strategic Investment Fund-N, L.P., Trian Partners Strategic Investment Fund-D, L.P., Trian Partners Fund (Sub)-G, L.P., Trian Partners Strategic Fund-G II, L.P. and Trian Partners Strategic Fund-G III, L.P. (collectively, the "Trian Entities")
(3)	(FN 2, contd.) and as such determines the investment and voting decisions of the Trian Entities with respect to the shares of the Issuer held by them. Mr. Garden is a member of Trian Fund Management GP, LLC, which is the general partner of Trian Management, and therefore is in a position to determine the investment and voting decisions made by Trian Management on behalf of the Trian Entities. Accordingly, Mr. Garden and Trian Management may be deemed to indirectly beneficially own (as that term is defined in Rule 13d-3 under the Securities Exchange Act of 1934) the shares beneficially owned by the Trian Entities. The Reporting Persons disclaim beneficial ownership of such shares except to the extent of their respective pecuniary interests therein and this report shall not be deemed an admission that the Reporting Persons are the beneficial owner of such securities for purposes of Section 16 or for any other purpose.
(4)	The price shown in Column 4 is a weighted average purchase price. The price range for the purchases is $56.49 to $57.20. The Reporting Persons undertake to provide upon request by the staff of the Securities and Exchange Commission, the Issuer or a security holder of the Issuer, full information regarding the number of shares purchased at each separate price.
(5)	The price shown in Column 4 is a weighted average purchase price. The price range for the purchases is $55.77 to $56.20. The Reporting Persons undertake to provide upon request by the staff of the Securities and Exchange Commission, the Issuer or a security holder of the Issuer, full information regarding the number of shares purchased at each separate price.
(6)	The price shown in Column 4 is a weighted average purchase price. The price range for the purchases is $54.42 to $55.42. The Reporting Persons undertake to provide upon request by the staff of the Securities and Exchange Commission, the Issuer or a security holder of the Issuer, full information regarding the number of shares purchased at each separate price.
(7)	The price shown in Column 4 is a weighted average purchase price. The price range for the purchases is $55.43 to $56.08. The Reporting Persons undertake to provide upon request by the staff of the Securities and Exchange Commission, the Issuer or a security holder of the Issuer, full information regarding the number of shares purchased at each separate price.
Remarks: Commencing on September 21, 2015, Mr. Garden has the right to attend, and participate in, all meetings of the Board of Directors of the Issuer in a nonvoting participant capacity, as further detailed in the letter agreement dated September 7, 2015 by and among the Issuer, Mr. Garden and the other parties thereto that is included as Exhibit 2 to the Schedule 13D/A filed by Trian Fund Management, L.P. with the Securities and Exchange Commission on September 8, 2015.

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