Pentair (PNR) EVP Adrian C. Chiu gets equity awards, surrenders shares for taxes

Rhea-AI Filing Summary

PENTAIR plc executive Adrian C. Chiu reported equity awards and related share activity. On 01/02/2026, he received 3,556 restricted stock units under the Pentair plc 2020 Share and Incentive Plan, each representing one common share upon vesting. On the same date, he was granted an employee stock option for 9,965 common shares at an exercise price of $105.47 per share, expiring on 01/02/2036, with one-third of the options becoming exercisable on each of the first three anniversaries of the grant.

To cover taxes due on vesting of restricted stock units, Chiu surrendered 226 and 132 common shares on 01/02/2026 at $105.47 per share and 218 shares on 01/03/2026 at $102.67 per share. The filing also notes end-of-period holdings that include shares from dividend reinvestment, employee stock purchase plan participation, and deferral plan elections.

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

OMB APPROVAL

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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).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Chiu Adrian C

(Last) (First) (Middle)

5500 WAYZATA BLVD.

SUITE 900

(Street)

GOLDEN VALLEY MN 55416

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP & Pres., Water Solutions

3. Date of Earliest Transaction (Month/Day/Year)
01/02/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

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. 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 Shares - Restricted Stock Units	01/02/2026		A(1)		3,556	A	$0	7,263.806(2)(3)	D
Common Shares	01/02/2026		F(4)		226	D	$105.47	15,675.4692(2)(3)(5)	D
Common Shares	01/02/2026		F(4)		132	D	$105.47	15,675.4692(2)(3)(5)	D
Common Shares	01/03/2026		F(4)		218	D	$102.67	15,193.4692(2)(3)(5)	D
Common Shares - ESOP								426.344(2)	I	Plan Agent
Common Shares - Deferral Plan								15,343.441(2)(3)(6)	I	Plan Agent

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
Employee Stock Option (right to buy)	$105.47	01/02/2026		A(7)		9,965		(8)	01/02/2036	Common Shares	9,965	$0	9,965	D

Explanation of Responses:

1. Restricted stock units granted pursuant to and subject to a vesting condition of the Pentair plc 2020 Share and Incentive Plan. Each restricted stock unit represents a right to receive one Pentair plc share upon vesting.

2. End-of-period holdings include shares acquired under a dividend reinvestment plan in exempt transactions not required to be reported pursuant to Section 16(a).

3. End-of-period holdings reflect the vesting of restricted stock units that were previously reported.

4. Shares surrendered to pay taxes applicable to vesting of restricted stock units.

5. End-of-period holdings include monthly purchases under the ESPP in exempt transactions pursuant to Rule 16b-3(c).

6. Pentair plc shares will be delivered to the reporting person in accordance with their irrevocable deferral election.

7. Employee stock option granted under the Pentair plc 2020 Share and Incentive Plan.

8. One-third of the stock options become exercisable on the first, second and third anniversary of the grant.

	s/ John K. Wilson, Attorney-in-Fact for Adrian C. Chiu	01/06/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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FAQ

What insider transactions did PENTAIR plc (PNR) report for Adrian C. Chiu?

The report shows equity awards and related share surrenders by Adrian C. Chiu, including a new restricted stock unit grant, a stock option grant, and shares surrendered to pay taxes on vesting.

How many restricted stock units did Adrian C. Chiu receive from PENTAIR plc (PNR)?

Adrian C. Chiu received 3,556 restricted stock units on 01/02/2026 under the Pentair plc 2020 Share and Incentive Plan, each representing the right to receive one Pentair share upon vesting.

What stock options were granted to Adrian C. Chiu by PENTAIR plc (PNR)?

He was granted an employee stock option for 9,965 common shares at an exercise price of $105.47 per share on 01/02/2026, expiring on 01/02/2036. One-third of the options become exercisable on each of the first, second, and third anniversaries of the grant.

Why did Adrian C. Chiu surrender PENTAIR plc (PNR) shares in early January 2026?

According to the filing, shares were surrendered to pay taxes applicable to the vesting of previously granted restricted stock units. Transactions included 226 and 132 shares on 01/02/2026 at $105.47 per share and 218 shares on 01/03/2026 at $102.67 per share.

What is Adrian C. Chiu27s role at PENTAIR plc (PNR)?

The report identifies him as an officer of PENTAIR plc, serving as EVP & President, Water Solutions, and filing individually as one reporting person.

How do dividend reinvestment and employee plans affect Adrian C. Chiu27s PENTAIR plc (PNR) holdings?

The filing notes that end-of-period holdings include shares acquired through a dividend reinvestment plan, monthly purchases under an employee stock purchase plan, and deferral plan elections, all in transactions exempt from separate Section 16(a) reporting.