Pentair plc
US ˙ NYSE ˙ IE00BLS09M33

SecurityPNR / Pentair plc
InstitutionKBC Group NV
Latest Disclosed Ownership385,640 shares
Latest Disclosed Value $ 33,593
KBC Group NV reports 60.76% decrease in ownership of PNR / Pentair plc

On May 7, 2026 - KBC Group NV filed a 13F-HR form disclosing ownership of 385,640 shares of Pentair plc (US:PNR) valued at $33,593,100 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 982,681 shares of Pentair plc. This represents a change in shares of -60.76% during the quarter. The current value of the position is $27,553,978 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F PENTAIR SHS G7S00T104 385,640 -597,041 -60.76 34 -67.65 0.0433
2026-01-26 2025-12-31 13F PENTAIR SHS G7S00T104 982,681 -53,175 -5.13 102 -10.53 0.2334
2026-01-20 2025-09-30 13F PENTAIR SHS G7S00T104 1,035,856 -55,787 -5.11 115 1.79 0.2751
2025-08-08 2025-06-30 13F PENTAIR SHS G7S00T104 1,091,643 40,303 3.83 112 23.08 0.3027
2025-04-25 2025-03-31 13F PENTAIR SHS G7S00T104 1,051,340 13,700 1.32 92 -12.50 0.2855
2025-01-22 2024-12-31 13F PENTAIR SHS G7S00T104 1,037,640 -164,803 -13.71 104 -11.11 0.2877
2024-11-06 2024-09-30 13F PENTAIR SHS G7S00T104 1,202,443 1,308 0.11 118 27.17 0.3553
2024-07-17 2024-06-30 13F PENTAIR SHS G7S00T104 1,201,135 10,286 0.86 92 -8.91 0.2783
2024-05-08 2024-03-31 13F PENTAIR SHS G7S00T104 1,190,849 -200 -0.02 102 17.44 0.3232
2024-02-13 2023-12-31 13F PENTAIR SHS G7S00T104 1,191,049 -68,582 -5.44 87 6.17 0.3070
2024-02-15 2023-09-30 13F/A-1 PENTAIR SHS G7S00T104 1,259,631 461,367 57.80 82 58.82 0.3329
2023-11-22 2023-09-30 13F PENTAIR SHS G7S00T104 798,264 0 52 0.2147
2024-02-15 2023-06-30 13F/A-1 PENTAIR SHS G7S00T104 798,264 5,527 0.70 52 18.60 0.2121
2023-07-28 2023-06-30 13F PENTAIR SHS G7S00T104 798,264 5,527 52 0.2147
2024-02-14 2023-03-31 13F/A-1 PENTAIR SHS G7S00T104 792,737 38,025 5.04 44 30.30 0.1860
2023-05-04 2023-03-31 13F PENTAIR SHS G7S00T104 792,737 44,936 44 0.2064
2024-02-14 2022-12-31 13F/A-1 PENTAIR SHS G7S00T104 754,712 6,408 0.86 34 10.00 0.1647
2023-02-13 2022-12-31 13F PENTAIR SHS G7S00T104 747,801 -503 30 0.0002
2024-02-15 2022-09-30 13F/A-1 PENTAIR SHS G7S00T104 748,304 -7,045 -0.93 30 -11.76 0.1580
2022-11-08 2022-09-30 13F PENTAIR SHS G7S00T104 747,801 -7,548 30,383 0.1588
2024-02-14 2022-06-30 13F/A-1 PENTAIR SHS G7S00T104 755,349 61,415 8.85 35 -8.11 0.1725
2022-07-26 2022-06-30 13F PENTAIR SHS G7S00T104 754,839 60,905 34,549 0.1739
2024-02-14 2022-03-31 13F/A-1 PENTAIR SHS G7S00T104 693,934 31,187 4.71 38 -22.92 0.1487
2022-05-06 2022-03-31 13F PENTAIR SHS G7S00T104 693,934 31,187 37,618 0.1389
2024-02-14 2021-12-31 13F/A-1 PENTAIR SHS G7S00T104 662,747 111,096 20.14 48 -99.88 0.1596
2022-02-03 2021-12-31 13F PENTAIR SHS G7S00T104 662,747 111,096 48,400 0.1516
2021-11-10 2021-09-30 13F PENTAIR SHS G7S00T104 551,651 27,000 5.15 40,066 13.15 0.1469
2022-02-15 2021-06-30 13F/A-1 PENTAIR SHS G7S00T104 524,651 -85,345 -13.99 35,409 -6.86 0.1276
2021-08-11 2021-06-30 13F PENTAIR SHS G7S00T104 524,651 -85,345 35,409 0.1276
2022-02-14 2021-03-31 13F/A-1 PENTAIR SHS G7S00T104 609,996 43,956 7.77 38,015 -87.35 0.1539
2021-04-26 2021-03-31 13F PENTAIR SHS G7S00T104 609,996 43,956 38,015 0.1539
2022-02-14 2020-12-31 13F/A-1 PENTAIR SHS G7S00T104 566,040 -112,638 -16.60 300,511 867.42 0.1414
2021-02-10 2020-12-31 13F PENTAIR SHS G7S00T104 566,040 -112,638 30,051 0.1383
2022-02-14 2020-09-30 13F/A-1 PENTAIR SHS G7S00T104 678,678 92,671 15.81 31,063 39.53 0.1830
2020-10-28 2020-09-30 13F PENTAIR SHS G7S00T104 678,678 92,671 31,063 0.1838
2022-02-14 2020-06-30 13F/A-1 PENTAIR SHS G7S00T104 586,007 -137,550 -19.01 22,262 3.39 0.1471
2020-08-10 2020-06-30 13F PENTAIR SHS G7S00T104 586,007 -137,550 22,262 0.1490
2020-05-04 2020-03-31 13F PENTAIR SHS G7S00T104 723,557 78,123 12.10 21,533 -27.27 0.1802
2020-02-11 2019-12-31 13F PENTAIR SHS G7S00T104 645,434 80,479 14.25 29,606 38.64 0.1872
2019-11-07 2019-09-30 13F PENTAIR SHS G7S00T104 564,955 -194,321 -25.59 21,355 -24.39 0.1566
2019-08-08 2019-06-30 13F/A-1 PENTAIR SHS G7S00T104 759,276 193,201 34.13 28,245 12.10 0.2187
2019-07-30 2019-06-30 13F PENTAIR SHS G7S00T104 759,276 -546,427 28,245
2019-08-07 2019-03-31 13F/A-1 PENTAIR SHS G7S00T104 566,075 182,892 47.73 25,196 74.05 0.2076
2019-05-10 2019-03-31 13F PENTAIR SHS G7S00T104 566,075 182,892 25,196
2019-01-31 2018-12-31 13F PENTAIR SHS G7S00T104 383,183 -128,660 -25.14 14,476 -34.76 0.1613
2018-11-14 2018-09-30 13F PENTAIR SHS G7S00T104 511,843 -4,049 -0.78 22,189 2.21 0.1678
2018-08-03 2018-06-30 13F PENTAIR SHS G7S00T104 515,892 184,675 55.76 21,709 -3.80 0.1890
2018-08-03 2018-03-31 13F/A-1 PENTAIR SHS G7S00T104 331,217 -57,732 -14.84 22,566 -17.84 0.2087
2018-05-09 2018-03-31 13F PENTAIR SHS G7S00T104 331,217 -57,732 22,566
2018-08-03 2017-12-31 13F/A-1 PENTAIR SHS G7S00T104 388,949 50,703 14.99 27,467 19.49 0.2349
2018-02-07 2017-12-31 13F PENTAIR SHS G7S00T104 388,949 50,703 27,467
2017-11-13 2017-09-30 13F PENTAIR SHS G7S00T104 338,246 256,833 315.47 22,987 324.35 0.2086
2017-08-04 2017-06-30 13F PENTAIR SHS G7S00T104 81,413 8,908 12.29 5,417 19.03 0.0524
2017-05-10 2017-03-31 13F PENTAIR SHS G7S00T104 72,505 -2,600 -3.46 4,551 8.07 0.0411
2017-02-16 2016-12-31 13F PENTAIR SHS G7S00T104 75,105 7,230 10.65 4,211 -3.42 0.0417
2016-11-03 2016-09-30 13F PENTAIR SHS G7S00T104 67,875 -5,911 -8.01 4,360 1.37 0.0515
2016-08-03 2016-06-30 13F PENTAIR SHS G7S00T104 73,786 2,119 2.96 4,301 10.59 0.0615
2016-05-11 2016-03-31 13F PENTAIR SHS G7S00T104 71,667 -3,129 -4.18 3,889 4.99 0.0646
2016-02-11 2015-12-31 13F PENTAIR SHS G7S00T104 74,796 11,259 17.72 3,704 14.22 0.0682
2015-11-12 2015-09-30 13F PENTAIR SHS G7S00T104 63,537 -5,143 -7.49 3,243 -31.31 0.0652
2015-12-16 2015-06-30 13F/A-1 PENTAIR SHS G7S00T104 68,680 -15,315 -18.23 4,721 -10.62 0.0607
2015-07-31 2015-06-30 13F PENTAIR SHS G7S00T104 68,680 4,721
2015-12-16 2015-03-31 13F/A-1 PENTAIR SHS G7S00T104 83,995 5,503 7.01 5,282 1.30 0.0671
2015-04-30 2015-03-31 13F PENTAIR SHS G7S00T104 83,995 5,282
2015-12-15 2014-12-31 13F/A-1 PENTAIR SHS G7S00T104 78,492 -88,153 -52.90 5,214 -52.23 0.0621
2015-02-12 2014-12-31 13F PENTAIR SHS G7S00T104 78,492 5,214
2014-10-16 2014-09-30 13F PENTAIR SHS G7S00T104 166,645 -24,326 -12.74 10,914 -20.76 0.3809
2014-08-01 2014-06-30 13F PENTAIR SHS G7S00T104 190,971 56,615 42.14 13,773 29.21 0.1573
2014-04-30 2014-03-31 13F PENTAIR SHS H6169Q108 134,356 -64,297 -32.37 10,659 -30.92 0.1683
2014-01-21 2013-12-31 13F PENTAIR SHS H6169Q108 198,653 -43,841 -18.08 15,429 -2.02 0.2334
2013-11-06 2013-09-30 13F PENTAIR SHS H6169Q108 242,494 38,681 18.98 15,747 33.93 0.2534
2013-07-29 2013-06-30 13F PENTAIR SHS H6169Q108 203,813 203,813 11,758 0.2181
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.