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  Ambac Finl Group (ABKFQ)
← All ABKFQ superinvestors
Period Shares % of Portfolio Activity % Change to Portfolio Price Value Filing
2007   Q2 0 0.00 Sell 100.00% <0.01 SEC
2007   Q1 2,580 <0.01 Add 4.03% <0.01 $86.39 $222,886 SEC
2006   Q4 2,480 <0.01 Reduce 3.88% <0.01 $89.07 $220,894 SEC
2006   Q3 2,580 <0.01 Reduce 26.07% <0.01 $82.75 $213,495 SEC
2006   Q2 3,490 <0.01 Buy <0.01 $81.10 $283,039 SEC