Activist · CIK 0001336528
Bill Ackman
Pershing Square
Bill Ackman runs Pershing Square, an activist overseeing $15.53B in disclosed equity holdings (SEC CIK 0001336528). The latest 13F filing (2025Q4) discloses 11 positions across 6 sectors, with the largest positions in BN, UBER and AMZN. On a mark-to-market basis the tracked portfolio has returned 90.7% over the past year. OpenStocks tracks 40 consecutive 13F filings for this manager — every position change, new entry, and exit is logged below.
Portfolio
$15.53B
Positions
11
Quarter
2025Q4
Filings tracked
40
Holdings
Sorted by value · 2025Q4
11 positions
Number of shares
61,403,089 sh
Holdings current value
$2.82B
Avg closing price
$49.37
-6.9%
Last action
Added 49.7%
2025Q4
Current $45.95
Number of shares
30,207,734 sh
Holdings current value
$2.47B
Avg closing price
$72.86
+5.0%
Last action
Trimmed 0.2%
2025Q4
Current $76.48
Number of shares
9,607,824 sh
Holdings current value
$2.22B
Avg closing price
$223.89
+11.5%
Last action
Added 65.0%
2025Q4
Current $249.70
Number of shares
6,163,871 sh
Holdings current value
$1.93B
Avg closing price
$106.37
+212.9%
Last action
Trimmed 2.5%
2025Q4
Current $332.77
Number of shares
2,673,569 sh
Holdings current value
$1.76B
Avg closing price
$660.09
+2.5%
Last action
New holding
2025Q4
Current $676.87
Number of shares
22,866,773 sh
Holdings current value
$1.56B
Avg closing price
$44.61
+74.0%
Last action
Trimmed 0.2%
2025Q4
Current $77.61
Number of shares
18,852,064 sh
Holdings current value
$1.50B
Avg closing price
$75.37
Last action
New holding
2025Q1
Current —
Number of shares
3,028,664 sh
Holdings current value
$869.98M
Avg closing price
$80.29
+311.5%
Last action
Trimmed 0.1%
2025Q4
Current $330.38
Number of shares
678,297 sh
Holdings current value
$212.31M
Avg closing price
$130.57
+157.4%
Last action
Trimmed 86.0%
2025Q4
Current $336.02
Number of shares
5,023,780 sh
Holdings current value
$99.32M
Avg closing price
$23.95
-6.3%
Last action
New holding
2025Q1
Current $22.44
Number of shares
15,241,127 sh
Holdings current value
$78.34M
Avg closing price
$3.75
+86.0%
Last action
Added 1.6%
2025Q2
Current $6.98
Portfolio heatmap
Box size = % of portfolio · color = return since filing
Sector exposure
Share of dollar value across the latest 13F report. Unclassified positions excluded.
- Consumer Cyclical3 pos$4.65B29.9%
- Communication Services3 pos$3.91B25.2%
- Financial Services1 pos$2.82B18.1%
- Technology1 pos$2.47B15.9%
- Real Estate2 pos$1.60B10.3%
- Industrials1 pos$78.3M0.5%