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  Cardiovascular Sys Inc Del (CSII)
Period Shares % of Portfolio Activity % Change to Portfolio Reported Price Value Filing
2022   Q1 0 0.00 Sell 100.00% 0.03 SEC
2021   Q4 166,953 0.03 Reduce 0.06% $18.78 $3,135,000 SEC
2021   Q3 167,060 0.05 Reduce 0.15% <0.01 $32.83 $5,485,000 SEC
2021   Q2 167,319 0.07 Add 5.69% <0.01 $42.65 $7,136,000 SEC
2021   Q1 158,309 0.06 Add 17.88% <0.01 $38.34 $6,070,000 SEC
2020   Q4 134,300 0.07 Add 5.58% <0.01 $43.76 $5,877,000 SEC
2020   Q3 127,205 0.06 Add 5.06% <0.01 $39.35 $5,006,000 SEC
2020   Q2 121,075 0.05 Reduce 3.12% <0.01 $31.55 $3,820,000 SEC
2020   Q1 124,975 0.06 Add 20.40% 0.01 $35.21 $4,400,000 SEC
2019   Q4 103,800 0.06 Add 4.49% <0.01 $48.59 $5,044,000 SEC
2019   Q3 99,340 0.06 Add 2.12% <0.01 $47.52 $4,721,000 SEC
2019   Q2 97,282 0.05 Add 1.97% <0.01 $42.93 $4,176,000 SEC
2019   Q1 95,404 0.04 Add 14.79% <0.01 $38.66 $3,688,000 SEC
2018   Q4 83,112 0.03 Add 9.41% <0.01 $28.49 $2,368,000 SEC
2018   Q3 75,962 0.03 Reduce 6.41% <0.01 $39.14 $2,973,000 SEC
2018   Q2 81,162 0.03 $32.34 $2,625,000 SEC
2018   Q1 81,162 0.02 $21.93 $1,780,000 SEC
2017   Q4 81,162 0.02 Add 7.13% <0.01 $23.69 $1,923,000 SEC
2017   Q3 75,762 0.03 $28.15 $2,133,000 SEC
2017   Q2 75,762 0.03 $32.23 $2,442,000 SEC
2017   Q1 75,762 0.03 $28.27 $2,142,000 SEC
2016   Q4 75,762 0.02 Reduce 0.32% <0.01 $24.21 $1,834,000 SEC
2016   Q3 76,002 0.02 Reduce 37.29% 0.01 $23.74 $1,804,000 SEC
2016   Q2 121,202 0.03 Reduce 50.77% 0.02 $18.37 $2,227,000 SEC
2016   Q1 246,202 0.04 $10.37 $2,553,000 SEC
2015   Q4 246,202 0.06 Add 18.58% <0.01 $15.12 $3,723,000 SEC
2015   Q3 207,632 0.05 Add 54.74% 0.02 $15.84 $3,289,000 SEC
2015   Q2 134,182 0.05 Add 13.31% <0.01 $26.45 $3,549,000 SEC
2015   Q1 118,422 0.06 $39.04 $4,623,000 SEC
2014   Q4 118,422 0.05 Add 5.88% <0.01 $30.08 $3,562,000 SEC
2014   Q3 111,842 0.04 Buy 0.04 $23.63 $2,643,000 SEC