William Frels - Mairs & Power Inc
Period:    Q1 2026
Portfolio date:    31 Mar 2026
No. of stocks:    245
Portfolio value:    $9,786,094,433
Holdings Activity Buys Sells    History
Holding/activity history for  Pentair plc (PNR)
Period Shares % of Portfolio Activity % Change to Portfolio Reported Price Value Filing
2026   Q1 57,578 0.05 Reduce 2.51% <0.01 $87.11 $5,015,620 SEC
2025   Q4 59,063 0.06 Reduce 1.91% <0.01 $104.14 $6,150,821 SEC
2025   Q3 60,213 0.06 Reduce 3.52% <0.01 $110.76 $6,669,192 SEC
2025   Q2 62,413 0.06 Reduce 0.16% <0.01 $102.66 $6,407,319 SEC
2025   Q1 62,510 0.06 Reduce 4.18% <0.01 $87.48 $5,468,375 SEC
2024   Q4 65,240 0.06 Reduce 3.47% <0.01 $100.64 $6,565,754 SEC
2024   Q3 67,585 0.06 Reduce 7.29% <0.01 $97.79 $6,609,137 SEC
2024   Q2 72,900 0.05 Reduce 20.25% 0.02 $76.67 $5,589,243 SEC
2024   Q1 91,412 0.08 Reduce 2.84% <0.01 $85.44 $7,810,241 SEC
2023   Q4 94,081 0.07 Reduce 3.18% <0.01 $72.71 $6,840,630 SEC
2023   Q3 97,171 0.07 Reduce 11.90% <0.01 $64.75 $6,291,822 SEC
2023   Q2 110,295 0.08 Reduce 9.84% <0.01 $64.60 $7,125,057 SEC
2023   Q1 122,327 0.08 Reduce 21.67% 0.02 $55.27 $6,761,013 SEC
2022   Q4 156,161 0.08 Reduce 4.36% <0.01 $44.98 $7,024,122 SEC
2022   Q3 163,277 0.08 Add 3.19% <0.01 $40.63 $6,634,000 SEC
2022   Q2 158,232 0.09 Reduce 13.98% 0.01 $45.77 $7,242,000 SEC
2022   Q1 183,948 0.10 Reduce 3.28% <0.01 $54.21 $9,972,000 SEC
2021   Q4 190,182 0.13 Reduce 6.94% 0.01 $73.03 $13,889,000 SEC
2021   Q3 204,355 0.15 Reduce 9.81% 0.01 $72.63 $14,842,000 SEC
2021   Q2 226,578 0.15 Reduce 13.93% 0.02 $67.49 $15,292,000 SEC
2021   Q1 263,252 0.17 Reduce 16.80% 0.03 $62.32 $16,406,000 SEC
2020   Q4 316,409 0.19 Reduce 16.69% 0.04 $53.09 $16,798,000 SEC
2020   Q3 379,811 0.22 Reduce 29.46% 0.08 $45.77 $17,384,000 SEC
2020   Q2 538,441 0.27 Reduce 30.25% 0.10 $37.99 $20,455,000 SEC
2020   Q1 771,911 0.34 Reduce 28.82% 0.16 $29.76 $22,972,000 SEC
2019   Q4 1,084,420 0.57 Reduce 29.99% 0.21 $45.87 $49,742,000 SEC
2019   Q3 1,548,991 0.71 Reduce 5.80% 0.04 $37.80 $58,552,000 SEC
2019   Q2 1,644,374 0.73 Reduce 0.08% <0.01 $37.20 $61,171,000 SEC
2019   Q1 1,645,709 0.89 Reduce 16.48% 0.16 $44.51 $73,251,000 SEC
2018   Q4 1,970,551 1.00 Reduce 2.72% 0.03 $37.78 $74,447,000 SEC
2018   Q3 2,025,621 1.02 Reduce 6.96% 0.08 $43.35 $87,811,000 SEC
2018   Q2 2,177,136 1.14 Reduce 11.42% 0.24 $42.08 $91,614,000 SEC
2018   Q1 2,457,855 2.07 Reduce 5.03% 0.11 $68.13 $167,454,000 SEC
2017   Q4 2,588,087 2.12 Reduce 2.74% 0.06 $70.62 $182,771,000 SEC
2017   Q3 2,661,115 2.17 Reduce 0.25% <0.01 $67.96 $180,849,000 SEC
2017   Q2 2,667,870 2.15 Reduce 0.07% <0.01 $66.54 $177,520,000 SEC
2017   Q1 2,669,789 2.05 Add 0.31% <0.01 $62.78 $167,609,000 SEC
2016   Q4 2,661,479 1.92 Reduce 0.08% <0.01 $56.07 $149,229,000 SEC
2016   Q3 2,663,602 2.26 Reduce 1.21% 0.03 $64.24 $171,110,000 SEC
2016   Q2 2,696,189 2.12 Add 0.03% <0.01 $58.29 $157,161,000 SEC
2016   Q1 2,695,503 2.08 Add 0.82% 0.02 $54.26 $146,258,000 SEC
2015   Q4 2,673,476 1.98 Reduce 0.33% <0.01 $49.53 $132,417,000 SEC
2015   Q3 2,682,462 2.14 Add 0.31% <0.01 $51.04 $136,913,000 SEC
2015   Q2 2,674,279 2.60 Reduce 0.12% <0.01 $68.75 $183,857,000 SEC
2015   Q1 2,677,555 2.32 Add 1.06% 0.02 $62.89 $168,391,000 SEC
2014   Q4 2,649,550 2.44 Add 0.37% <0.01 $66.42 $175,983,000 SEC
2014   Q3 2,639,745 2.52 Add 6.26% 0.15 $65.49 $172,877,000 SEC
2014   Q2 2,484,231 2.58 Buy 2.58 $72.12 $179,163,000 SEC