Bill Ackman - Pershing Square Capital Management
Holding/activity history for Automatic Data Processing Inc. (ADP)
| Period | Shares | % of Portfolio | Activity | % Change to Portfolio | Reported Price |
| 2019 Q3 | 0 | 0 | Sell 100.00% | 9.93 | |
| 2019 Q2 | 4,029,526 | 9.93 | $165.33 | ||
| 2019 Q1 | 4,029,526 | 9.58 | Reduce 1.00% | 0.10 | $159.74 |
| 2018 Q4 | 4,070,126 | 8.96 | Add 1.01% | 0.09 | $131.12 |
| 2018 Q3 | 4,029,427 | 11.65 | Reduce 4.64% | 0.57 | $150.66 |
| 2018 Q2 | 4,225,365 | 9.76 | Reduce 46.80% | 8.58 | $134.14 |
| 2018 Q1 | 7,941,957 | 18.65 | Reduce 9.73% | 2.01 | $113.48 |
| 2017 Q4 | 8,798,442 | 17.56 | $117.19 | ||
| 2017 Q3 | 8,798,442 | 18.81 | Add 402.52% | 15.07 | $109.32 |
| 2017 Q2 | 1,750,867 | 2.98 | Buy | 2.98 | $102.46 |
| 2011 Q1 | 0 | 0 | Sell 100.00% | 1.14 | |
| 2010 Q4 | 1,404,733 | 1.14 | Reduce 83.85% | 5.92 | $46.28 |
| 2010 Q3 | 8,700,612 | 9.05 | Add 5.21% | 0.45 | $42.03 |
| 2010 Q2 | 8,270,027 | 9.51 | Buy | 9.51 | $40.26 |
| 2010 Q1 | 0 | 0 | Sell 100.00% | 0.26 | |
| 2009 Q4 | 114,482 | 0.26 | Reduce 98.13% | 13.64 | $42.82 |
| 2009 Q3 | 6,118,353 | 7.68 | Reduce 15.71% | 1.43 | $39.30 |
| 2009 Q2 | 7,258,302 | 11.75 | Buy | 11.75 | $35.44 |