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  Arbitron (CDN1)
← All CDN1 superinvestors
Period Shares % of Portfolio Activity % Change to Portfolio Price Value Filing
2012   Q1 0 0.00 Sell 100.00% <0.01 SEC
2011   Q4 8,035 <0.01 $34.35 $276,000 SEC
2011   Q3 8,035 <0.01 $33.11 $266,000 SEC
2011   Q2 8,035 <0.01 Buy <0.01 $41.32 $332,000 SEC
2005   Q3 0 0.00 Sell 100.00% <0.01 SEC
2005   Q2 5,000 <0.01 Reduce 7.58% <0.01 $42.90 $214,500 SEC
2005   Q1 5,410 <0.01 Add 0.37% $42.90 $232,089 SEC
2004   Q4 5,390 <0.01 Buy <0.01 $39.18 $211,180 SEC
2004   Q2 0 0.00 Sell 100.00% <0.01 SEC
2004   Q1 5,490 <0.01 Reduce 25.10% <0.01 $40.26 $221,027 SEC
2003   Q4 7,330 <0.01 Reduce 2.66% <0.01 $41.72 $305,808 SEC
2003   Q3 7,530 <0.01 Reduce 4.08% <0.01 $35.30 $265,809 SEC
2003   Q2 7,850 0.02 Reduce 26.15% <0.01 $35.70 $280,245 SEC
2003   Q1 10,630 0.01 Reduce 6.83% <0.01 $31.70 $336,971 SEC
2002   Q4 11,409 0.02 Reduce 90.93% 0.18 $33.50 $382,202 SEC
2002   Q3 125,729 0.20 $34.10 $4,287,359 SEC
2002   Q2 125,729 0.17 Reduce 0.10% <0.01 $31.20 $3,922,745 SEC
2002   Q1 125,849 0.37 Reduce 0.47% <0.01 $33.80 $4,253,696 SEC
2001   Q4 126,449 0.22 Buy 0.22 $34.15 $4,318,233 SEC