PENTAIR plc — Director's Dealing 2018

May 4, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PENTAIR plc (PNR)
CIK: 0000077360
Period of Report: 2018-05-02

Reporting Person: BORIN MARK C (EVP & Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-05-02	Common Shares - Restricted Stock Units	A	6605	—	Acquired	25452.62	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-05-02	Employee Stock Option (right to buy)	$45.42	A	27479	Acquired	2028-05-02	Common Shares (27479)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Shares - ESOP	660.2637	Indirect
Common Shares - Deferral Plan	8344.574	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Employee Stock Option (right to buy)	$24.64	2021-01-03	Common Shares (15740)	15740	Direct
Employee Stock Option (right to buy)	$22.73	2022-01-03	Common Shares (17761)	17761	Direct
Employee Stock Option (right to buy)	$33.72	2023-01-02	Common Shares (15184)	15184	Direct
Employee Stock Option (right to buy)	$51.21	2024-01-02	Common Shares (9705)	9705	Direct
Employee Stock Option (right to buy)	$39.87	2024-12-15	Common Shares (8521)	8521	Direct
Employee Stock Option (right to buy)	$44.43	2025-01-02	Common Shares (13856)	13856	Direct
Employee Stock Option (right to buy)	$32.83	2026-01-04	Common Shares (26559)	26559	Direct
Employee Stock Option (right to buy)	$38.61	2027-01-03	Common Shares (16540)	16540	Direct

Footnotes

F1: Restricted stock units granted pursuant to and subject to a vesting condition of the Pentair plc 2012 Stock and Incentive Plan. Each restricted stock unit represents a right to receive one Pentair plc share upon vesting.

F2: 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).

F3: Pentair plc shares will be delivered to the reporting person in accordance with their irrevocable deferral election.

F4: Employee stock option granted under the Pentair plc 2012 Stock and Incentive Plan.

F5: One-third of the stock options become exercisable on the first, second and third anniversary of the grant.

F6: The exercise price and number of stock options were adjusted in connection with the spin-off of nVent Electric plc on April 30, 2018 pursuant to the anti-dilution provisions of the Pentair plc 2012 Stock and Incentive Plan.

F7: This option is presently exercisable in full.

F8: Two-thirds of this option is presently exercisable. The remaining one-third becomes exercisable on January 4, 2019.

F9: One-third of this option is presently exercisable. The remaining two-thirds become exercisable on January 3, 2019 and January 3, 2020.