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: Frykman Karl R. (EVP & Chief Operating Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-05-02	Common Shares - Restricted Stock Units	A	8807	—	Acquired	35326.07	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	36639	Acquired	2028-05-02	Common Shares (36639)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Shares - ESOP	1988.0152	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Employee Stock Option (right to buy)	$12.75	2019-03-03	Common Shares (15362)	15362	Direct
Employee Stock Option (right to buy)	$22.81	2020-03-02	Common Shares (19368)	19368	Direct
Employee Stock Option (right to buy)	$24.34	2021-03-02	Common Shares (11727)	11727	Direct
Employee Stock Option (right to buy)	$25.74	2022-03-01	Common Shares (11526)	11526	Direct
Employee Stock Option (right to buy)	$33.72	2023-01-02	Common Shares (9110)	9110	Direct
Employee Stock Option (right to buy)	$51.21	2024-01-02	Common Shares (7967)	7967	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 (32389)	32389	Direct
Employee Stock Option (right to buy)	$38.61	2027-01-03	Common Shares (26223)	26223	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: Employee stock option granted under the Pentair plc 2012 Stock and Incentive Plan.

F4: One-third of the stock options become exercisable on the first, second and third anniversary of the grant.

F5: 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.

F6: This option is presently exercisable in full.

F7: Two-thirds of this option is presently exercisable. The remaining one-third becomes exercisable on January 4, 2019.

F8: One-third of this option is presently exercisable. The remaining two-thirds become exercisable on January 3, 2019 and January 3, 2020.