Trian Fund Management Form 4 PENTAIR / EDWARD P GARDEN ownership change

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

GARDEN EDWARD P

(Last) (First) (Middle)

280 PARK AVENUE, 41ST FLOOR

(Street)

NEW YORK NY 10017

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
PENTAIR plc [ PNR ]

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

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
11/27/2017

4. If Amendment, Date of 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

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
Common (Ordinary) Shares	11/27/2017		P		9,966	A	$69.2173(1)	15,410,685	I	Please see explanation below(2)(3)
Common (Ordinary) Shares - Restricted Stock Units								1,122	D

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 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: 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
Put-Call Option (right and obligation to buy)	$69.2523	11/27/2017		J(4)(5)		49,134		(4)(5)	11/20/2018	Common (Ordinary) Shares	49,134	$0.00(4)(5)	49,134	I	Please see explanation below(2)(3)

1. Name and Address of Reporting Person^*

GARDEN EDWARD P

(Last) (First) (Middle)

280 PARK AVENUE, 41ST FLOOR

(Street)

NEW YORK NY 10017

(City) (State) (Zip)

1. Name and Address of Reporting Person^*

TRIAN FUND MANAGEMENT, L.P.

(Last) (First) (Middle)

280 PARK AVENUE, 41ST FLOOR

(Street)

NEW YORK NY 10017

(City) (State) (Zip)

Explanation of Responses:

1. The price shown in Column 4 is a weighted average purchase price. The price range for the purchases is $69.095 to $69.25. 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 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., Trian Partners Strategic Fund-G III, L.P., Trian Partners Strategic Fund-K, L.P. and Trian Partners Strategic Fund-C, Ltd. (collectively, the "Trian Entities") and as such determines the investment and voting decisions of the Trian Entities with respect to the shares of the Issuer held by them.

3. (FN 2, contd.) 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 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 Trian Management and 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. One of the Trian Entities has entered into a privately negotiated back-to-back call and put transactions (the "Options") with a counterparty through which it is entitled to the same economic gain or loss as if it has purchased the indicated shares. More specifically, these transactions represent call options pursuant to which, on or prior to November 20, 2018 (the "Exercise Date"), the Trian Entity may acquire the number of shares set forth above at the exercise price set forth above (the "Exercise Price"). These call options may be exercised at any time, in whole or in part, on or prior to the Exercise Date. Simultaneously with the purchase of each call option, the Trian Entity also sold a put option to the counterparty for the same number of shares pursuant to which, if on the Exercise Date the call options have not been exercised by the Trian Entity and the Exercise Price is greater than the closing price of the shares on the Expiration Date (the "Closing Price"), the counterparty

5. (FN 4 contd.) may require the Trian Entity to, at such person's election, either (i) pay the counterparty an amount in cash equal to the product of (a) the excess of the Exercise Price over the Closing Price and (b) the number of shares set forth above or (ii) acquire from the counterparty the number of shares set forth above at the Exercise Price. With the exercise of any call option, a corresponding number of put options would be automatically terminated. As part of these transactions, the Trian Entity pays the counterparty a financing fee based on the number of days that the Options that it holds are outstanding, which fee is calculated using a monthly rate equal to one month LIBOR plus an applicable spread. No premium was paid by either of the parties in connection with the Options. Until exercised, the Options do not give the Trian Entity any direct or indirect voting, investment or dispositive control over the underlying shares.

Remarks:

	Daniel R. Marx, Attorney-In-Fact for Edward P. Garden	11/27/2017
	Daniel R. Marx, Attorney-In-Fact for Edward P. Garden, member of the general partner of Trian Fund Management, L.P.	11/27/2017
	** Signature of Reporting Person	Date
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