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  MUTUAL FUNDS Columbia Acorn Fd Cl Z (ACRNX)
← All ACRNX superinvestors
Period Shares % of Portfolio Activity % Change to Portfolio Price Value Filing
2007   Q3 0 0.00 Sell 100.00% <0.01 $30.16–33.74 SEC
2007   Q2 43,052 <0.01 Reduce 19.64% <0.01 $31.17–33.87 $811,988 SEC
2007   Q1 53,572 0.01 Add 0.27% $29.49–31.72 $940,966 SEC
2006   Q4 53,426 0.01 Add 0.52% <0.01 $29.42–32.17 $910,649 SEC
2006   Q3 53,150 0.02 Reduce 29.30% <0.01 $27.52–29.79 $903,805 SEC
2006   Q2 75,173 0.03 Add 26.17% <0.01 $27.70–31.90 $1,173,845 SEC
2006   Q1 59,580 0.01 Add 0.21% $28.56–30.96 $1,055,349 SEC
2005   Q4 59,457 0.01 Add 9.68% <0.01 $27.08–29.81 $999,653 SEC
2005   Q3 54,211 0.03 Add 73.43% 0.01 $26.90–28.62 $992,564 SEC
2005   Q2 31,258 0.01 Add 199.55% <0.01 $24.88–26.91 $679,725 SEC
2005   Q1 10,435 <0.01 Buy <0.01 $25.26–26.97 $272,562 SEC