Bill Ackman - Pershing Square Capital Management
Period:    Q1 2026
Portfolio date:    31 Mar 2026
No. of stocks:    11
Portfolio value:    $13,714,299,861
Holdings Activity Buys Sells    History
Holding/activity history for  MBIA Inc. (MBI)
← All MBI superinvestors
Period Shares % of Portfolio Activity % Change to Portfolio Price Value Filing
2008   Q3 0 0.00 Sell 100.00% 0.16 $3.70–19.08 · VW $11.56i SEC
2008   Q2 873,000 0.16 Add 1228.77% 0.14 $3.62–14.50 · VW $7.50i $3,832,000 SEC
2008   Q1 65,700 <0.01 Reduce 90.58% 0.04 $6.75–19.75 · VW $12.91i $74,000 SEC
2007   Q4 697,700 0.04 Buy 0.04 $17.79–68.98 · VW $35.13i $545,000 SEC
Price snapshot:
Current price$6.30
52-week low$4.41
52-week high$8.26