0000077360-26-000036 | 11-K | XBRL Viewer

PLAN TERMINATION	12 Months Ended
Dec. 31, 2025
EBP 002
EBP, Description of Plan [Line Items]
PLAN TERMINATION	PLAN TERMINATION Although it has not expressed any intention to do so, the Company has the right under the Plan to discontinue its contributions at any time and to terminate the Plan subject to the provisions set forth in ERISA. In the event the Plan is terminated, participants would become 100% vested in their accounts.

EXEMPT PARTY-IN-INTEREST TRANSACTIONS	12 Months Ended
Dec. 31, 2025
EBP 002
EBP, Related Party and Party-in-Interest Transactions [Line Items]
EXEMPT PARTY-IN-INTEREST TRANSACTIONS	EXEMPT PARTY-IN-INTEREST TRANSACTIONS Certain Plan investments are managed by Fidelity, the trustee as defined by the Plan. These transactions qualify as exempt party-in-interest transactions. Fees paid for investment management services were included as a reduction of the return earned on each fund. The Plan has a revenue-sharing agreement whereby participant revenue credits (“PRCs”) are generated from certain investment managers for services provided to the Plan. The PRCs are allocated to the participants who invest in certain funds which offsets the participants’ administrative fee. At December 31, 2025 and 2024, the Plan held 484,506 and 537,704 shares, respectively, of common stock of Pentair, the parent of the Company, with a cost basis of $14,763,333 and $16,182,590, respectively. During the year ended December 31, 2025, the Plan recorded dividend income of $507,608 with respect to the common stock of Pentair. Participant loans also qualify as party-in-interest transactions and amounted to $8,839,784 and $8,719,479 at December 31, 2025 and 2024, respectively.

EXEMPT PARTY-IN-INTEREST TRANSACTIONS (Details) - EBP 002 - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
EBP, Related Party and Party-in-Interest Transactions [Line Items]
Notes receivable from participants	$ 8,839,784	$ 8,719,479
Pentair common stock
EBP, Related Party and Party-in-Interest Transactions [Line Items]
Number of shares held by plan	484,506	537,704
Investment, cost	$ 14,763,333	$ 16,182,590
Investment, dividend income	$ 507,608

FAIR VALUE MEASUREMENTS (Details) - EBP 002 - USD ($)	12 Months Ended
FAIR VALUE MEASUREMENTS (Details) - EBP 002 - USD ($)	Dec. 31, 2025	Dec. 31, 2024
EBP, Investment, Fair Value and NAV [Line Items]
NAV redemption, notice period	12 months
Total investments at fair value	$ 992,149,624	$ 901,232,118
Level 1, Level 2, and Level 3
EBP, Investment, Fair Value and NAV [Line Items]
Total investments at fair value	149,513,173	144,876,446
Level 1, Level 2, and Level 3 \| Pentair common stock
EBP, Investment, Fair Value and NAV [Line Items]
Total investments at fair value	50,460,578	54,118,380
Level 1, Level 2, and Level 3 \| Interest-bearing cash
EBP, Investment, Fair Value and NAV [Line Items]
Total investments at fair value	318,195	187,320
Level 1, Level 2, and Level 3 \| Mutual funds
EBP, Investment, Fair Value and NAV [Line Items]
Total investments at fair value	98,734,400	90,570,746
Level 1
EBP, Investment, Fair Value and NAV [Line Items]
Total investments at fair value	149,513,173	144,876,446
Level 1 \| Pentair common stock
EBP, Investment, Fair Value and NAV [Line Items]
Total investments at fair value	50,460,578	54,118,380
Level 1 \| Interest-bearing cash
EBP, Investment, Fair Value and NAV [Line Items]
Total investments at fair value	318,195	187,320
Level 1 \| Mutual funds
EBP, Investment, Fair Value and NAV [Line Items]
Total investments at fair value	98,734,400	90,570,746
Level 2
EBP, Investment, Fair Value and NAV [Line Items]
Total investments at fair value	0	0
Level 2 \| Pentair common stock
EBP, Investment, Fair Value and NAV [Line Items]
Total investments at fair value	0	0
Level 2 \| Interest-bearing cash
EBP, Investment, Fair Value and NAV [Line Items]
Total investments at fair value	0	0
Level 2 \| Mutual funds
EBP, Investment, Fair Value and NAV [Line Items]
Total investments at fair value	0	0
Level 3
EBP, Investment, Fair Value and NAV [Line Items]
Total investments at fair value	0	0
Level 3 \| Pentair common stock
EBP, Investment, Fair Value and NAV [Line Items]
Total investments at fair value	0	0
Level 3 \| Interest-bearing cash
EBP, Investment, Fair Value and NAV [Line Items]
Total investments at fair value	0	0
Level 3 \| Mutual funds
EBP, Investment, Fair Value and NAV [Line Items]
Total investments at fair value	0	0
Investments valued at NAV
EBP, Investment, Fair Value and NAV [Line Items]
Total investments at fair value	$ 842,636,451	$ 756,355,672

RECONCILIATION OF FINANCIAL STATEMENTS TO FORM 5500 - Reconciliation of Notes Receivable from Participants (Details) - EBP 002 - USD ($)	Dec. 31, 2025	Dec. 31, 2024
EBP, Reconciliation of Financial Statement to Form 5500 [Line Items]
Notes receivable from participants per the financial statements	$ 8,839,784	$ 8,719,479
Less: Cumulative deemed distributions of participant loans	(239,318)	(227,488)
Notes receivable from participants per Form 5500	$ 8,600,466	$ 8,491,991

FORM 5500, SCHEDULE H, PART IV LINE 4i — SCHEDULE OF ASSETS (HELD AT END OF YEAR) (Details) - EBP 002 - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
EBP, Schedule of Asset Held for Investment [Line Items]
Entity tax identification number	41-0907434
Plan number	002
Asset held for investment, notes receivable	$ 8,600,466
Asset held for investment, total	1,000,750,090
Deemed distribution	$ 239,318	$ 227,488
Minimum
EBP, Schedule of Asset Held for Investment [Line Items]
Participant loan, interest rate	4.25%
Maximum
EBP, Schedule of Asset Held for Investment [Line Items]
Participant loan, interest rate	9.75%
Investment, Identifier [Axis]: Common/Collective Trusts \| BlackRock Total Return L Series
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	$ 8,639,360
Investment, Identifier [Axis]: Common/Collective Trusts \| Fidelity Growth Company
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	196,798,535
Investment, Identifier [Axis]: Common/Collective Trusts \| Loomis Small Cap Growth
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	21,898,757
Investment, Identifier [Axis]: Common/Collective Trusts \| RT L&G MSCI EAFE A
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	4,858,545
Investment, Identifier [Axis]: Common/Collective Trusts \| RT L&G RUSSELL 3000
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	111,419,115
Investment, Identifier [Axis]: Common/Collective Trusts \| State Street Real Asset Non-Lending Series Fund Class C
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	759,718
Investment, Identifier [Axis]: Common/Collective Trusts \| Vanguard Target Retirement 2020 Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	13,869,724
Investment, Identifier [Axis]: Common/Collective Trusts \| Vanguard Target Retirement 2025 Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	34,838,597
Investment, Identifier [Axis]: Common/Collective Trusts \| Vanguard Target Retirement 2030 Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	76,500,138
Investment, Identifier [Axis]: Common/Collective Trusts \| Vanguard Target Retirement 2035 Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	88,787,245
Investment, Identifier [Axis]: Common/Collective Trusts \| Vanguard Target Retirement 2040 Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	53,727,712
Investment, Identifier [Axis]: Common/Collective Trusts \| Vanguard Target Retirement 2045 Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	55,982,741
Investment, Identifier [Axis]: Common/Collective Trusts \| Vanguard Target Retirement 2050 Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	51,844,577
Investment, Identifier [Axis]: Common/Collective Trusts \| Vanguard Target Retirement 2055 Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	34,757,933
Investment, Identifier [Axis]: Common/Collective Trusts \| Vanguard Target Retirement 2060 Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	24,143,356
Investment, Identifier [Axis]: Common/Collective Trusts \| Vanguard Target Retirement 2065 Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	7,441,356
Investment, Identifier [Axis]: Common/Collective Trusts \| Vanguard Target Retirement 2070 Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	1,710,006
Investment, Identifier [Axis]: Common/Collective Trusts \| Vanguard Target Retirement Income Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	8,282,690
Investment, Identifier [Axis]: Interest-Bearing Cash \| Vanguard Cash Reserves Federal Money Market
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	265,670
Investment, Identifier [Axis]: Interest-Bearing Cash \| Vanguard Federal Money Market
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	52,525
Investment, Identifier [Axis]: Mutual Funds \| Dodge & Cox International Stock Fund Class X
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	21,908,381
Investment, Identifier [Axis]: Mutual Funds \| Fidelity US Bond Index
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	7,796,581
Investment, Identifier [Axis]: Mutual Funds \| Oakmark Fund
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	44,794,505
Investment, Identifier [Axis]: Mutual Funds \| Vanguard International Growth Fund Adm
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	12,042,662
Investment, Identifier [Axis]: Mutual Funds \| Victory Integrity Small Cap Value Fund R6
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	12,192,271
Investment, Identifier [Axis]: Stable Value Fund \| Fidelity Managed Income Portfolio II, CL 4
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	46,376,346
Common collective trusts
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	796,260,105
Mutual funds
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	98,734,400
Interest-bearing cash
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	318,195
Pentair common stock
EBP, Schedule of Asset Held for Investment [Line Items]
Asset held for investment, investment	$ 50,460,578

RECONCILIATION OF FINANCIAL STATEMENTS TO FORM 5500 - Reconciliation of Change in Net Assets Available for Benefits (Details) - EBP 002	12 Months Ended
	Dec. 31, 2025 USD ($)
EBP, Reconciliation of Financial Statement to Form 5500 [Line Items]
Change in net assets available for benefits per the financial statements	$ 92,102,778
Less: Change in cumulative deemed distributions of participant loans	(11,830)
Change in net assets available for benefits per Form 5500	$ 92,090,948

SIGNIFICANT ACCOUNTING POLICIES (Policies) - EBP 002	12 Months Ended
SIGNIFICANT ACCOUNTING POLICIES (Policies) - EBP 002	Dec. 31, 2025
EBP, Accounting Policy [Line Items]
Basis of accounting	Basis of accounting The financial statements of the Plan have been prepared on the accrual basis of accounting and in accordance with accounting principles generally accepted in the United States of America (“GAAP”).
Use of estimates	Use of estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities and changes therein and disclosure of contingent assets and liabilities. Actual results could differ from those estimates.
Investment valuation and income recognition	Investment valuation and income recognition The Plan provides various investment options to its participants, including common shares of Pentair, mutual funds, common/collective trusts and stable value funds. Investment securities, in general, are exposed to various risks, such as interest rate risk, credit risk and overall market volatility. Market risks include global events which could impact the value of investment securities, such as a pandemic or international conflict. Due to the level of risk associated with certain investment securities, it is reasonably possible that changes in the values of investment securities will occur in the near term and that such changes could materially affect the amounts reported in the financial statements. The Plan’s investments are stated at fair value. Accounting guidance related to fair value measurements, which establishes a single authoritative definition of fair value, sets a framework for measuring fair value, and requires additional disclosures about fair value measurements (see Note 3). Purchases and sales of securities are recorded on a trade-date basis. Interest income is recorded on the accrual basis. Dividends are recorded on the ex-dividend date. Net appreciation and depreciation in the fair value of investments includes gains and losses in investments sold during the year as well as appreciation and depreciation of the investments held at year end.
Notes receivable from participants	Notes receivable from participants Notes receivable from participants are measured at their unpaid balance plus any accrued but unpaid interest. Delinquent participant loans are recorded as distributions based on the terms of the Plan document.
Contributions	Contributions Employee and employer matching contributions are recorded in the period in which the employee contributions are withheld from compensation.
Payments of benefits	Payments of benefits Benefit payments to participants are recorded when paid.

- Definition

Disclosure of accounting policy for use of estimate in preparation of financial statement of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References + Details

STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS - EBP 002 - USD ($)	Dec. 31, 2025	Dec. 31, 2024
ASSETS:
Notes receivable from participants	$ 8,839,784	$ 8,719,479
Employee contributions receivable	704,583	0
Employer contributions receivable	360,384	0
Total receivables	9,904,751	8,719,479
Investments — at fair value	992,149,624	901,232,118
Total assets	1,002,054,375	909,951,597
NET ASSETS AVAILABLE FOR BENEFITS	$ 1,002,054,375	$ 909,951,597

- Definition

Fair value of investment, excluding plan interest in master trust, held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, derivative, investment measured at net asset value per share as practical expedient, and insurance contract not meeting fully-benefit responsive investment criteria.

+ References

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+ Details

- Definition

Amount of asset less liability available to pay benefit of participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), including, but not limited to, aggregation of participants' individual account balances.

+ References

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+ Details

DESCRIPTION OF THE PLAN	12 Months Ended
DESCRIPTION OF THE PLAN	Dec. 31, 2025
EBP 002
EBP, Description of Plan [Line Items]
DESCRIPTION OF THE PLAN	DESCRIPTION OF THE PLAN The following description of the Pentair, Inc. Retirement Savings and Stock Incentive Plan (the “Plan”) provides only general information. Participants should refer to the Plan document for a more complete description of the Plan. General information — The Plan is a defined contribution profit-sharing plan with a cash or deferred arrangement described in Internal Revenue Code (“IRC”) Section 401(k) and an employee stock ownership plan (“ESOP”) component of the stock-bonus type. With certain exceptions, the Plan covers employees of Pentair, Inc. (the “Company”) and its U.S. subsidiaries. The Company is a subsidiary of Pentair plc (“Pentair”) and is the Plan sponsor as well as Plan Administrator. Fidelity Management Trust Company (“Fidelity”) is trustee of the Plan. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”). Participation — Participation for full- and part-time employees may commence effective with the date of hire, provided the employee is at least age 18. Participant pre-tax and Roth contributions are subject to a maximum of 50% compensation, and an additional after-tax contribution to a maximum of 15% compensation, for a combined limit of 65% of compensation. Employee contributions are also subject to the IRC 402(g) limitation of $23,500 in 2025 provided that employees who will be age 50 or older are permitted to make additional catch-up contributions to the Plan up to the IRC limitation of $7,500. The Plan has an automatic enrollment feature for new employees at a deferral rate of 5% of eligible compensation with an automatic annual increase of 1% of eligible compensation per year until the participant reaches a deferral rate of 10%. Employees may opt-out of automatic enrollment and automatic annual increase at any time. Employee contributions for most participants are matched at the rate of 100% of the first 5% of eligible compensation that is contributed to the Plan by a participant and are made in the form of cash. Participant accounts — Individual accounts are maintained for each Plan participant. Each participant’s account is credited with the participant’s contributions, the Company’s matching contributions and Plan earnings, and charged with withdrawals and allocations of Plan losses and administrative expenses. The benefit to which a participant is entitled under the Plan is the benefit that can be provided from the participant’s vested account. Investments — Participants direct the investment of their contributions into various investment options offered by the Plan and may change investments and transfer amounts between funds daily. In the event a participant fails to direct the investment, the participant is deemed to have elected to invest the participant’s contributions in the default investment option designated by the Plan Administrator. The Plan currently offers various investment alternatives to Plan participants, consisting of common shares of Pentair, mutual funds, common/collective trusts and stable value funds. Investment management fees are charged against 401(k) trust earnings prior to the allocation of earnings. Notes receivable from participants — Loans for any reason are allowed under the Plan. The interest rate charged is prime rate plus 1% at the time funds are borrowed. The maximum maturity of the loans is five years (15 years for loans to purchase a primary residence). The minimum loan amount is $1,000, and the maximum is the lesser of 50% of the vested account balance, not including employer contributions, or $50,000. Due to transfers of notes receivable from participants related to plan mergers in prior years, certain loans outstanding as of December 31, 2025 and 2024, may carry an original maturity greater than 15 years and bear interest at rates higher than the prime rate plus 1%. As of December 31, 2025, participant loans have maturities through 2045 at interest rates ranging from 4.25% to 9.75%. Refund of excess contributions — Amounts payable to participants for contributions in excess of amounts allowed by the Internal Revenue Service (“IRS”) are recorded as a liability with a corresponding reduction to contributions. Excess contributions are remitted to applicable participants in the subsequent plan year. There were no excess contributions related to the plan years ended December 31, 2025 and 2024. Vesting — All pre-tax elective deferral, after-tax and Roth contributions are immediately 100% vested. The Company’s matching contributions for participants generally are 100% vested after 12 months of service. Forfeitures — Nonvested account balances of terminated employees are forfeited. Forfeitures under the Plan may be used to pay administrative expenses that are otherwise owed by the Company or may be applied towards the payment of the Company’s future contributions. As of December 31, 2025 and 2024, forfeited nonvested accounts were $372,890 and $485,699, respectively. During the year ended December 31, 2025, $405,350 was used to reduce employer contributions as a result of the forfeited nonvested accounts. Administrative expenses — Administrative expenses of the Plan are paid in part by the Plan sponsor and in part by the participants (as deductions from their accounts) as provided in the Plan document. Payment of benefits — Upon severance from service for any reason, a participant may elect to receive a lump-sum amount equal to the value of the participant’s vested interest in his or her account. Some participants can also elect annual installments over a term-certain period. Payment is made in cash, although participants may elect to receive common shares of Pentair from their ESOP account. Withdrawals — Participants who are actively employed may take a withdrawal from their after-tax and rollover accounts at any time, from all vested accounts (other than the ESOP account) once the participant is age 59 1/2, and from all vested accounts if the participant is disabled. Hardship withdrawals from a participant’s pre-tax and Roth contribution accounts are available for immediate and heavy financial need up to the amount necessary to satisfy the need, plus taxes due on the withdrawal. Hardship withdrawals and age 59 1/2 withdrawals can occur any time with a maximum of two per calendar year. In addition, participants on military leave may take a withdrawal of the amounts in their pre-tax and Roth contribution accounts. Subsequent Events — Effective January 1, 2026, the Plan extended coverage to include current employees of G & F Manufacturing, LLC and Hydra-Stop LLC.

DESCRIPTION OF THE PLAN (Details)	12 Months Ended
DESCRIPTION OF THE PLAN (Details)	Dec. 31, 2025 USD ($) year withdrawal	Dec. 31, 2024 USD ($)
EBP, Description of Plan [Line Items]
EBP, Participant Catch-Up Contribution, Minimum Age \| year	50
EBP 002
EBP, Description of Plan [Line Items]
Participant contribution, minimum age \| year	18
Pretax, maximum annual compensation to total compensation, percentage	50.00%
After tax, maximum annual compensation to total compensation, percentage	15.00%
Total maximum annual compensation to total compensation, percentage	65.00%
Automatic deferral rate, annual increase	1.00%
Employer contribution, mtching percentage	100.00%
Employer contribution, percent of participant compensation matched	5.00%
Basis spread on variable rate	1.00%
General loan, borrowing term	5 years
Primary residence, borrowing term	15 years
Minimum borrowing amount	$ 1,000
Maximum borrowing to total account, percentage	50.00%
Maximum borrowing amount	$ 50,000
Refund of excess contributions	$ 0	$ 0
Participant contribution, vesting percentage	100.00%
Employer contribution, vesting percentage	100.00%
Employer contribution, vesting service period	12 months
Forfeited nonvested account	$ 372,890	$ 485,699
Forfeited nonvested account, decrease from employer contribution	$ 405,350
Maximum number of withdrawals per calendar year \| withdrawal	2
EBP, Participant Contribution Limit	$ 23,500
EBP, Participant Contribution Catch-Up Limit	$ 7,500
EBP 002 \| Minimum
EBP, Description of Plan [Line Items]
Automatic deferral rate	5.00%
Participant loan, interest rate	4.25%
EBP 002 \| Maximum
EBP, Description of Plan [Line Items]
Automatic deferral rate	10.00%
Participant loan, interest rate	9.75%

FAIR VALUE MEASUREMENTS (Tables)

12 Months Ended

Dec. 31, 2025

EBP 002

EBP, Investment, Fair Value and NAV [Line Items]

Schedule of Investments, Fair Value

The fair values of the Plan’s investments measured at fair value on a recurring basis and their respective level within the fair value hierarchy as of December 31, 2025 and 2024 were as follows:


	December 31, 2025
	Level 1		Level 2		Level 3		Total
Pentair common stock	$	50,460,578	$	—	$	—	$	50,460,578

Interest-bearing cash	318,195		—		—		318,195
Mutual funds	98,734,400		—		—		98,734,400
Net investments in fair value hierarchy	149,513,173		—		—		149,513,173
Investments valued at NAV							842,636,451

Total investments at fair value	$	149,513,173	$	—	$	—	$	992,149,624


	December 31, 2024
	Level 1		Level 2		Level 3		Total
Pentair common stock	$	54,118,380	$	—	$	—	$	54,118,380

Interest-bearing cash	187,320		—		—		187,320
Mutual funds	90,570,746		—		—		90,570,746
Net investments in fair value hierarchy	144,876,446		—		—		144,876,446
Investments valued at NAV							756,355,672

Total investments at fair value	$	144,876,446	$	—	$	—	$	901,232,118

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
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Reference 4: http://www.xbrl.org/2003/role/exampleRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
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Reference 13: http://www.xbrl.org/2003/role/disclosureRef
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Reference 14: http://www.xbrl.org/2003/role/exampleRef
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Reference 15: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

- Definition

Tabular disclosure of fair value of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), including, but not limited to, fair value measured at net asset value per share as practical expedient (NAV).

+ References

+ Details

RECONCILIATION OF FINANCIAL STATEMENTS TO FORM 5500 - Reconciliation of Benefits Paid to Participants (Details) - EBP 002	12 Months Ended
	Dec. 31, 2025 USD ($)
EBP, Reconciliation of Financial Statement to Form 5500 [Line Items]
Distributions to participants per the financial statements	$ 122,293,368
Less: Deemed distributions of participant loans	(3,965)
Distributions to participants per Form 5500	$ 122,289,403

FORM 5500, SCHEDULE H, PART IV LINE 4i — SCHEDULE OF ASSETS (HELD AT END OF YEAR)

12 Months Ended

Dec. 31, 2025

EBP 002

EBP, Schedule of Asset Held for Investment [Line Items]

FORM 5500, SCHEDULE H, PART IV LINE 4i — SCHEDULE OF ASSETS (HELD AT END OF YEAR)

PENTAIR, INC. RETIREMENT SAVINGS AND STOCK INCENTIVE PLAN

(EIN: 41-0907434)

(Plan #002)

FORM 5500, SCHEDULE H, PART IV LINE 4i — SCHEDULE OF ASSETS (HELD AT END OF YEAR)

AS OF DECEMBER 31, 2025

Current

Description

Cost

Value

COMMON/COLLECTIVE TRUSTS:

Vanguard Target Retirement Income Fund

8,282,690

Vanguard Target Retirement 2020 Fund

13,869,724

Vanguard Target Retirement 2025 Fund

34,838,597

Vanguard Target Retirement 2030 Fund

76,500,138

Vanguard Target Retirement 2035 Fund

88,787,245

Vanguard Target Retirement 2040 Fund

53,727,712

Vanguard Target Retirement 2045 Fund

55,982,741

Vanguard Target Retirement 2050 Fund

51,844,577

Vanguard Target Retirement 2055 Fund

34,757,933

Vanguard Target Retirement 2060 Fund

24,143,356

Vanguard Target Retirement 2065 Fund

7,441,356

Vanguard Target Retirement 2070 Fund

1,710,006

Fidelity Growth Company (1)

196,798,535

RT L&G RUSSELL 3000

111,419,115

RT L&G MSCI EAFE A

4,858,545

BlackRock Total Return L Series

8,639,360

Loomis Small Cap Growth

21,898,757

State Street Real Asset Non-Lending Series Fund Class C

759,718

Total common collective trusts

796,260,105

MUTUAL FUNDS:

Oakmark Fund

44,794,505

Dodge & Cox International Stock Fund Class X

21,908,381

Fidelity US Bond Index (1)

7,796,581

Victory Integrity Small Cap Value Fund R6

12,192,271

Vanguard International Growth Fund Adm

12,042,662

Total mutual funds

98,734,400

INTEREST-BEARING CASH

Vanguard Federal Money Market

52,525

Vanguard Cash Reserves Federal Money Market

265,670

Total interest-bearing cash

318,195

PENTAIR COMMON STOCK (1)

50,460,578

STABLE VALUE FUND

Fidelity Managed Income Portfolio II, CL 4 (1)

46,376,346

NOTES RECEIVABLE FROM PARTICIPANTS, NET OF $239,318 IN DEEMED DISTRIBUTIONS (1) (2)

8,600,466

TOTAL

1,000,750,090

(1)Party-in-interest.

(2)Interest rates range from 4.25% to 9.75%. Maturity dates range from 2026 to 2045.

* Cost information is not required for participant-directed investments and, therefore, is not included.

FAIR VALUE MEASUREMENTS

12 Months Ended

Dec. 31, 2025

EBP 002

EBP, Investment, Fair Value and NAV [Line Items]

FAIR VALUE MEASUREMENTS

The Plan’s estimates of fair value for financial assets are based on the framework established in the fair value accounting guidance. Fair value is the price that would be received by the Plan for an asset or paid by the Plan to transfer a liability (an exit price) in an orderly transaction between market participants on the measurement date in the Plan’s principal or most advantageous market for the asset or liability. Fair value measurements are determined by maximizing the use of observable inputs and minimizing the use of unobservable inputs. The hierarchy places the highest priority on unadjusted quoted market prices in active markets for identical assets or liabilities (Level 1 measurements) and gives the lowest priority to unobservable inputs (Level 3 measurements). The three levels of inputs within the fair value hierarchy are defined as follows:

Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets that the Plan has the ability to access.

Level 2: Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data.

Level 3: Significant unobservable inputs that reflect the Plan’s own assumptions about the assumptions that market participants would use in pricing an asset or liability.

In some cases, a valuation technique used to measure fair value may include inputs from multiple levels of the fair value hierarchy. The lowest level of significant input determines the placement of the entire fair value measurement in the hierarchy.

Certain investments are measured at fair value on a recurring basis in the statements of net assets available for benefits. The following methods and assumptions were used to estimate the fair values:

Mutual funds, common stock and other investments — These investments are classified as Level 1 and consist of various publicly-traded mutual funds, common stock and interest-bearing cash. Mutual funds and common stock are valued at quoted market prices and are actively traded. Interest-bearing cash, primarily consisting of publicly traded money-market funds, is valued at cost plus accrued interest.

Common/collective trusts — These investments consist of various collective investment trust funds. The underlying investments in these collective investment trust funds primarily include intermediate and long-term debt securities, corporate debt securities, equity securities and fixed income securities. The overall fair value of the common/collective trusts are valued at the net asset value (“NAV”) as a practical expedient, which is based on the fair value of the underlying securities owned by the fund less liabilities and divided by the number of shares outstanding. Participant transactions may occur daily and there are no unfunded commitments, redemption restrictions or notice period requirements.

Stable value fund — The Plan provides participants a stable value investment option managed by Fidelity. The Managed Income Portfolio II Fund of the Fidelity Group for Employee Benefit Plans (the “Fund”) also invests in synthetic guaranteed investment contracts and is a portfolio of financial instruments. The Fund is valued using NAV as a practical expedient to estimate fair value. The redemption frequency is daily and there are no unfunded commitments, or redemption restrictions. There is no redemption notice period for the individual participant level; however, there is up to a 12-month redemption notice period for the Plan level.

The fair values of the Plan’s investments measured at fair value on a recurring basis and their respective level within the fair value hierarchy as of December 31, 2025 and 2024 were as follows:


	December 31, 2025
	Level 1		Level 2		Level 3		Total
Pentair common stock	$	50,460,578	$	—	$	—	$	50,460,578

Interest-bearing cash	318,195		—		—		318,195
Mutual funds	98,734,400		—		—		98,734,400
Net investments in fair value hierarchy	149,513,173		—		—		149,513,173
Investments valued at NAV							842,636,451

Total investments at fair value	$	149,513,173	$	—	$	—	$	992,149,624


	December 31, 2024
	Level 1		Level 2		Level 3		Total
Pentair common stock	$	54,118,380	$	—	$	—	$	54,118,380

Interest-bearing cash	187,320		—		—		187,320
Mutual funds	90,570,746		—		—		90,570,746
Net investments in fair value hierarchy	144,876,446		—		—		144,876,446
Investments valued at NAV							756,355,672

Total investments at fair value	$	144,876,446	$	—	$	—	$	901,232,118

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

+ Details

- Definition

The entire disclosure for fair value of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), including, but not limited to, fair value measured at net asset value per share as practical expedient (NAV).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-3

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
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-Name Accounting Standards Codification
-Section 50
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-02(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 16: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 23
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-23

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 325
-Name Accounting Standards Codification
-Section 45
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477509/962-325-45-6

+ Details

STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS - EBP 002	12 Months Ended
	Dec. 31, 2025 USD ($)
CONTRIBUTIONS:
Employee	$ 37,132,244
Employer	18,902,307
Rollover	8,070,321
Total contributions	64,104,872
Interest, dividend and other income	5,369,275
Net appreciation in the fair value of investments	145,366,848
Total investment income	150,736,123
DEDUCTIONS:
Distributions to participants	122,293,368
Administrative expenses	444,849
Total deductions	122,738,217
CHANGE IN NET ASSETS	92,102,778
NET ASSETS AVAILABLE FOR BENEFITS — Beginning of year	909,951,597
NET ASSETS AVAILABLE FOR BENEFITS — End of year	$ 1,002,054,375

RECONCILIATION OF FINANCIAL STATEMENTS TO FORM 5500 - Reconciliation of Net Assets Available for Benefit (Details) - EBP 002 - USD ($)	Dec. 31, 2025	Dec. 31, 2024
EBP, Reconciliation of Financial Statement to Form 5500 [Line Items]
Net assets available for benefits per the financial statements	$ 1,002,054,375	$ 909,951,597
Less: Cumulative deemed distributions of participant loans	(239,318)	(227,488)
Net assets available for benefits per Form 5500	$ 1,001,815,057	$ 909,724,109

- Definition

+ References

+ Details

SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
SIGNIFICANT ACCOUNTING POLICIES	Dec. 31, 2025
EBP 002
EBP, Accounting Policy [Line Items]
SIGNIFICANT ACCOUNTING POLICIES	SIGNIFICANT ACCOUNTING POLICIES Basis of accounting The financial statements of the Plan have been prepared on the accrual basis of accounting and in accordance with accounting principles generally accepted in the United States of America (“GAAP”). Use of estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities and changes therein and disclosure of contingent assets and liabilities. Actual results could differ from those estimates. Investment valuation and income recognition The Plan provides various investment options to its participants, including common shares of Pentair, mutual funds, common/collective trusts and stable value funds. Investment securities, in general, are exposed to various risks, such as interest rate risk, credit risk and overall market volatility. Market risks include global events which could impact the value of investment securities, such as a pandemic or international conflict. Due to the level of risk associated with certain investment securities, it is reasonably possible that changes in the values of investment securities will occur in the near term and that such changes could materially affect the amounts reported in the financial statements. The Plan’s investments are stated at fair value. Accounting guidance related to fair value measurements, which establishes a single authoritative definition of fair value, sets a framework for measuring fair value, and requires additional disclosures about fair value measurements (see Note 3). Purchases and sales of securities are recorded on a trade-date basis. Interest income is recorded on the accrual basis. Dividends are recorded on the ex-dividend date. Net appreciation and depreciation in the fair value of investments includes gains and losses in investments sold during the year as well as appreciation and depreciation of the investments held at year end. Notes receivable from participants Notes receivable from participants are measured at their unpaid balance plus any accrued but unpaid interest. Delinquent participant loans are recorded as distributions based on the terms of the Plan document. Contributions Employee and employer matching contributions are recorded in the period in which the employee contributions are withheld from compensation. Payments of benefits Benefit payments to participants are recorded when paid.

Cover	12 Months Ended
Cover	Dec. 31, 2025
Document Information [Line Items]
Document Type	11-K
Entity Registrant Name	Pentair plc
Amendment Flag	false
Entity Central Index Key	0000077360
EBP 002
Document Information [Line Items]
Document Type	11-K
Entity Registrant Name	Pentair plc
Amendment Flag	false
Entity Central Index Key	0000077360

FEDERAL INCOME TAX STATUS	12 Months Ended
FEDERAL INCOME TAX STATUS	Dec. 31, 2025
EBP 002
EBP, Tax Status [Line Items]
FEDERAL INCOME TAX STATUS	FEDERAL INCOME TAX STATUS The IRS has determined and informed the Company by a letter dated August 27, 2015, that the Plan was designed in accordance with applicable regulations of the IRC. The Plan has been amended since receiving the determination letter. However, the Company and Plan management believe that the Plan is currently designed and operated in compliance with the applicable requirements of the IRC, and the Plan continues to be tax-exempt. Therefore, no provision for income taxes has been included in the Plan’s financial statements. GAAP requires Plan management to evaluate tax positions taken by the Plan and recognize a tax liability (or asset) if the Plan has taken an uncertain position that more likely than not would not be sustained upon examination by the IRS. The Plan is subject to routine audits by taxing jurisdictions; however, there are currently no audits for any tax periods in progress. The Plan administrator believes it is no longer subject to income tax examinations for years prior to 2022.

RECONCILIATION OF FINANCIAL STATEMENTS TO FORM 5500 - Reconciliation of Net Investment Income (Details) - EBP 002	12 Months Ended
	Dec. 31, 2025 USD ($)
EBP, Reconciliation of Financial Statement to Form 5500 [Line Items]
Total investment income per the financial statements	$ 150,736,123
Less: Interest on deemed distributions of participant loans	(15,795)
EBP, Form 5500 Caption, Net Investment Income	$ 150,720,328