William Frels - Mairs & Power
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)
← All PNR superinvestors
Period Shares % of Portfolio Activity % Change to Portfolio Price Value Filing
2026   Q1 57,578 0.05 Reduce 2.51% <0.01 $79.49–107.59 · VW $89.26i $5,015,620 SEC
2025   Q4 59,063 0.06 Reduce 1.91% <0.01 $99.11–109.89 · VW $104.79i $6,150,821 SEC
2025   Q3 60,213 0.06 Reduce 3.52% <0.01 $99.68–113.95 · VW $106.66i $6,669,192 SEC
2025   Q2 62,413 0.06 Reduce 0.16% <0.01 $90.40–108.59 · VW $100.40i $6,407,319 SEC
2025   Q1 62,510 0.06 Reduce 4.18% <0.01 $74.25–105.30 · VW $90.09i $5,468,375 SEC
2024   Q4 65,240 0.06 Reduce 3.47% <0.01 $96.58–110.71 · VW $103.66i $6,565,754 SEC
2024   Q3 67,585 0.06 Reduce 7.29% <0.01 $79.29–101.00 · VW $93.14i $6,609,137 SEC
2024   Q2 72,900 0.05 Reduce 20.25% 0.02 $72.63–89.63 · VW $83.38i $5,589,243 SEC
2024   Q1 91,412 0.08 Reduce 2.84% <0.01 $72.03–85.81 · VW $78.98i $7,810,241 SEC
2023   Q4 94,081 0.07 Reduce 3.18% <0.01 $57.88–75.41 · VW $68.82i $6,840,630 SEC
2023   Q3 97,171 0.07 Reduce 11.90% <0.01 $57.18–71.82 · VW $62.37i $6,291,822 SEC
2023   Q2 110,295 0.08 Reduce 9.84% <0.01 $55.26–70.44 · VW $65.07i $7,125,057 SEC
2023   Q1 122,327 0.08 Reduce 21.67% 0.02 $50.15–60.85 · VW $56.36i $6,761,013 SEC
2022   Q4 156,161 0.08 Reduce 4.36% <0.01 $39.53–55.60 · VW $50.17i $7,024,122 SEC
2022   Q3 163,277 0.08 Add 3.19% <0.01 $38.55–51.49 · VW $44.33i $6,634,000 SEC
2022   Q2 158,232 0.09 Reduce 13.98% 0.01 $43.60–54.03 · VW $48.84i $7,242,000 SEC
2022   Q1 183,948 0.10 Reduce 3.28% <0.01 $50.53–64.98 · VW $55.42i $9,972,000 SEC
2021   Q4 190,182 0.13 Reduce 6.94% 0.01 $60.70–80.10 · VW $68.17i $13,889,000 SEC
2021   Q3 204,355 0.15 Reduce 9.81% 0.01 $69.35–80.40 · VW $74.57i $14,842,000 SEC
2021   Q2 226,578 0.15 Reduce 13.93% 0.02 $62.23–73.82 · VW $69.91i $15,292,000 SEC
2021   Q1 263,252 0.17 Reduce 16.80% 0.03 $53.15–65.83 · VW $61.16i $16,406,000 SEC
2020   Q4 316,409 0.19 Reduce 16.69% 0.04 $50.03–59.30 · VW $54.60i $16,798,000 SEC
2020   Q3 379,811 0.22 Reduce 29.46% 0.08 $42.83–52.87 · VW $48.49i $17,384,000 SEC
2020   Q2 538,441 0.27 Reduce 30.25% 0.10 $31.50–43.81 · VW $39.39i $20,455,000 SEC
2020   Q1 771,911 0.34 Reduce 28.82% 0.16 $22.01–44.80 · VW $33.80i $22,972,000 SEC
2019   Q4 1,084,420 0.57 Reduce 29.99% 0.21 $41.81–47.43 · VW $44.06i $49,742,000 SEC
2019   Q3 1,548,991 0.71 Reduce 5.80% 0.04 $34.50–42.00 · VW $39.32i $58,552,000 SEC
2019   Q2 1,644,374 0.73 Reduce 0.08% <0.01 $34.72–39.62 · VW $37.72i $61,171,000 SEC
2019   Q1 1,645,709 0.89 Reduce 16.48% 0.16 $37.32–45.70 · VW $40.67i $73,251,000 SEC
2018   Q4 1,970,551 1.00 Reduce 2.72% 0.03 $35.30–43.78 · VW $40.09i $74,447,000 SEC
2018   Q3 2,025,621 1.02 Reduce 6.96% 0.08 $36.06–46.00 · VW $40.74i $87,811,000 SEC
2018   Q2 2,177,136 1.14 Reduce 40.51% 0.84 $41.28–46.93 · VW $44.29i $91,614,000 SEC
2018   Q1 3,659,746 2.07 Reduce 5.03% 0.11 $43.53–49.07 · VW $45.93i $167,454,000 SEC
2017   Q4 3,853,662 2.12 Reduce 2.74% 0.06 $45.18–50.26 · VW $47.82i $182,771,000 SEC
2017   Q3 3,962,400 2.17 Reduce 0.25% <0.01 $39.71–48.12 · VW $45.05i $180,849,000 SEC
2017   Q2 3,972,458 2.15 Reduce 0.07% <0.01 $41.69–46.36 · VW $43.47i $177,520,000 SEC
2017   Q1 3,975,316 2.05 Add 0.31% <0.01 $38.58–44.10 · VW $42.00i $167,609,000 SEC
2016   Q4 3,962,942 1.92 Reduce 0.08% <0.01 $36.13–41.55 · VW $39.02i $149,229,000 SEC
2016   Q3 3,966,103 2.26 Reduce 1.21% 0.03 $36.78–44.99 · VW $39.60i $171,110,000 SEC
2016   Q2 4,014,625 2.12 Add 0.03% <0.01 $37.29–43.19 · VW $41.11i $157,161,000 SEC
2016   Q1 4,013,604 2.08 Add 0.82% 0.02 $27.92–41.69 · VW $36.21i $146,258,000 SEC
2015   Q4 3,980,806 1.98 Reduce 0.33% <0.01 $28.21–40.09 · VW $33.31i $132,417,000 SEC
2015   Q3 3,994,186 2.14 Add 0.31% <0.01 $32.53–42.62 · VW $37.57i $136,913,000 SEC
2015   Q2 3,982,001 2.60 Reduce 0.12% <0.01 $39.13–46.78 · VW $42.25i $183,857,000 SEC
2015   Q1 3,986,879 2.32 Add 1.06% 0.02 $40.24–45.83 · VW $42.60i $168,391,000 SEC
2014   Q4 3,945,180 2.44 Add 0.37% <0.01 $39.95–46.59 · VW $42.68i $175,983,000 SEC
2014   Q3 3,930,580 2.52 Add 6.26% 0.15 $39.68–47.31 · VW $44.01i $172,877,000 SEC
2014   Q2 3,699,020 2.58 Buy 2.58 $42.71–53.19 · VW $46.31i $179,163,000 SEC
Price snapshot:
Current price$76.53
Avg. buy price$47.71
+/- since buy60.39%
52-week low$69.93
52-week high$113.06