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 Inc (PNRG)
Period Shares % of Portfolio Activity % Change to Portfolio Reported Price Value Filing
2012   Q4 0 0.00 Sell 100.00% 3.66 SEC
2012   Q3 3,345,778 3.66 Add 0.26% <0.01 $44.51 $148,921,000 SEC
2012   Q2 3,336,977 3.33 Add 0.93% 0.03 $38.28 $127,739,000 SEC
2012   Q1 3,306,193 4.04 Reduce 0.98% 0.03 $47.61 $157,408,000 SEC
2011   Q4 3,339,078 3.20 Reduce 0.31% 0.01 $33.29 $111,158,000 SEC
2011   Q3 3,349,463 3.45 Buy 3.45 $32.01 $107,216,000 SEC
2011   Q2 0 0.00 Sell 100.00% 3.45 SEC
2011   Q1 3,337,126 3.45 Reduce 0.12% <0.01 $37.79 $126,110,000 SEC
2010   Q4 3,341,071 3.52 Add 0.21% <0.01 $36.51 $121,982,000 SEC
2010   Q3 3,334,211 1.77 Reduce 3.42% 0.06 $33,630.00 $112,129,501,000 SEC
2010   Q1 3,452,186 1.86 Reduce 0.53% <0.01 $35,620.00 $122,966,850,000 SEC
2009   Q4 3,470,426 1.78 Reduce 0.31% <0.01 $32,300.00 $112,094,746,000 SEC
2009   Q3 3,481,326 1.70 Add 0.20% <0.01 $29,520.00 $102,768,731,000 SEC
2009   Q2 3,474,376 1.69 Add 0.33% <0.01 $25,620.00 $89,013,502,000 SEC
2009   Q1 3,462,826 1.69 Reduce 0.30% <0.01 $21,670.00 $75,039,430,000 SEC
2008   Q4 3,473,176 1.56 Reduce 0.35% <0.01 $23,670.00 $82,210,065,000 SEC
2008   Q3 3,485,220 1.76 Reduce 0.15% <0.01 $34,570.00 $120,484,040,000 SEC
2008   Q2 3,490,500 1.81 Add 0.00% $35,020.00 $122,237,295,000 SEC
2008   Q1 3,490,453 1.54 Add 0.10% <0.01 $31,900.00 $111,345,437,000 SEC
2007   Q4 3,486,813 2.47 Add 0.61% 0.01 $34,810.00 $121,375,945,000 SEC
2007   Q3 3,465,833 1.38 Add 2.34% 0.03 $33,180.00 $114,996,324,000 SEC
2007   Q2 3,386,633 1.58 Add 2.57% 0.04 $38,570.00 $130,622,418,000 SEC
2007   Q1 3,301,873 1.31 Add 2.12% 0.03 $31,160.00 $102,886,349,000 SEC
2006   Q4 3,233,273 1.30 Add 0.89% 0.01 $31,400.00 $101,524,758,000 SEC
2006   Q3 3,204,870 2.30 Add 3.17% 0.07 $26,190.00 $83,935,556,000 SEC
2006   Q2 3,106,448 0.31 Add 8.30% 0.02 $1,998.89 $6,209,457,000 SEC
2006   Q1 2,868,248 1.60 Reduce 0.18% <0.01 $40,750.00 $116,881,106,000 SEC
2005   Q4 2,873,448 1.44 Add 10.79% 0.14 $34,520.00 $99,191,425,000 SEC
2005   Q3 2,593,598 2.96 Add 0.27% <0.01 $36,500.00 $94,666,327,000 SEC
2005   Q2 2,586,598 1.73 Add 0.69% 0.01 $42,810.00 $110,732,260,000 SEC
2005   Q1 2,568,898 1.67 Add 0.62% 0.01 $39,000.00 $100,187,022,000 SEC
2004   Q4 2,552,998 2.00 Buy 2.00 $43,560.00 $111,208,593,000 SEC
2004   Q3 0 0.00 Sell 100.00% 3.80 SEC
2004   Q2 2,569,144 3.80 Add 99.41% 1.89 $33,640.00 $86,426,004,000 SEC
2004   Q1 1,288,372 1.82 Add 5.15% 0.09 $59,000.00 $76,013,948,000 SEC
2003   Q4 1,225,322 1.50 Add 10.40% 0.14 $45,700.00 $55,997,215,000 SEC
2003   Q3 1,109,922 1.38 Buy 1.38 $39,870.00 $44,252,590,000 SEC
2003   Q2 0 0.00 Sell 100.00% 1.35 SEC
2003   Q1 913,422 1.35 Add 1.40% 0.02 $35,350.00 $32,289,468,000 SEC
2002   Q4 900,772 1.31 Add 24.96% 0.26 $34,550.00 $31,121,673,000 SEC
2002   Q3 720,822 1.26 Add 16.00% 0.17 $37,170.00 $26,792,954,000 SEC
2002   Q2 621,372 1.33 Reduce 0.56% 0.01 $48,080.00 $29,875,566,000 SEC
2002   Q1 624,872 2.45 Add 24.56% 0.48 $44,970.00 $28,100,494,000 SEC
2001   Q4 501,672 0.92 Add 34.22% 0.23 $36,510.00 $18,316,045,000 SEC
2001   Q3 373,772 0.66 Add 281.90% 0.49 $30,770.00 $11,500,964,000 SEC
2001   Q2 97,872 0.37 Buy 0.37 $33,800.00 $3,308,074,000 SEC
2001   Q1 0 0.00 Sell 100.00% 0.13 SEC
2000   Q4 94,350 0.13 Add 0.80% <0.01 $24,187.50 $2,282,091,000 SEC
2000   Q3 93,600 0.16 Add 60.00% 0.06 $26,750.00 $2,503,800,000 SEC
2000   Q2 58,500 0.13 Buy 0.13 $35,500.00 $2,076,750,000 SEC
2000   Q1 0 0.00 Sell 100.00% 0.10 SEC
1999   Q4 42,400 0.10 Add 10.42% <0.01 $38,500.00 $1,632,400,000 SEC
1999   Q3 38,400 0.10 Buy 0.10 $40,125.00 $1,540,800,000 SEC