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  Automatic Data Processing, Inc. (ADP)
← All ADP superinvestors
Period Shares % of Portfolio Activity % Change to Portfolio Price Value Filing
2019   Q3 0 0.00 Sell 100.00% 9.93 $153.72–174.50 · VW $166.33i SEC
2019   Q2 4,029,526 9.93 $165.33 $666,202,000 SEC
2019   Q1 4,029,526 9.58 Reduce 1.00% 0.10 $148.15–165.50 · VW $157.92i $643,676,000 SEC
2018   Q4 4,070,126 9.63 Add 1.01% 0.10 $121.40–154.55 · VW $142.99i $533,675,000 SEC
2018   Q3 4,029,427 12.90 Reduce 4.64% 0.49 $133.13–153.51 · VW $144.69i $607,073,000 SEC
2018   Q2 4,225,365 10.62 Reduce 46.80% 9.50 $129.21–146.96 · VW $140.97i $566,790,000 SEC
2018   Q1 7,941,957 20.29 Reduce 9.73% 1.83 $109.14–132.05 · VW $123.74i $901,253,000 SEC
2017   Q4 8,798,442 18.84 $117.19 $1,031,089,000 SEC
2017   Q3 8,798,442 20.63 Add 402.52% 16.52 $105.94–118.47 · VW $112.96i $961,846,000 SEC
2017   Q2 1,750,867 3.26 Buy 3.26 $98.50–121.77 · VW $108.91i $179,394,000 SEC
Price snapshot:
Current price$251.05
52-week low$186.74
52-week high$307.44