X0306 4 2020-02-21 0 0000077360 PENTAIR plc PNR 0001430408 BORIN MARK C 5500 WAYZATA BLVD., SUITE 900 GOLDEN VALLEY MN 55416 0 1 0 0 EVP & Chief Financial Officer Common Shares 2020-02-21 4 M 0 15184 33.72 A 45834 D Common Shares 2020-02-21 4 M 0 26559 32.83 A 72393 D Common Shares 2020-02-21 4 F 0 2979 44.56 D 69414 D Common Shares 2020-02-21 4 S 0 13217 44.6690 D 56197 D Common Shares 2020-02-21 4 S 0 24538 44.7303 D 31659 D Common Shares - Deferral Plan 13267.76 I Plan Agent Common Shares - ESOP 681.47 I Plan Agent Employee Stock Option (right to buy) 33.72 2020-02-21 4 M 0 15184 0 D 2023-01-02 Common Shares 15184 0 D Employee Stock Option (right to buy) 32.83 2020-02-21 4 M 0 26559 0 D 2026-01-04 Common Shares 26559 0 D Shares delivered to pay option exercise price applicable to the exercise of stock options and shares withheld to pay taxes applicable to the exercise of stock options. The price in Column 4 is a weighted average price. The prices actually received ranged from $44.62 to $44.71. The reporting person has provided to the issuer, and will provide to any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range for all transactions reported in this Form 4 utilizing an average weighted price. The price in Column 4 is a weighted average price. The prices actually received ranged from $44.71 to $44.775. The reporting person has provided to the issuer, and will provide to any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range for all transactions reported in this Form 4 utilizing an average weighted price. 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). This option is presently exercisable in full. /s/ John K. Wilson, Attorney-in-Fact for Mark C. Borin 2020-02-25