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Built from publicly disclosed institutional and insider activity. Informational purposes only - not investment advice.OpenStocks · v0.1
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  3. Bill Ackman (Pershing Square)
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Activist · CIK 0001336528

Bill Ackman

Pershing Square
Share
  • Concentrated
  • Large Fund

Bill Ackman runs Pershing Square, an activist overseeing $15.53B in disclosed equity holdings (SEC CIK 0001336528). The latest portfolio (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 117.4% since 2016Q1. OpenStocks tracks 40 consecutive quarterly snapshots for this manager — every position change, new entry, and exit is logged below.

Track Bill's filingsView holdings↓
Portfolio
$15.53B
Positions
11
Quarter
2025Q4
Filings tracked
40
Since filing+117.4%Full performance →
Quarter
2025Q42025Q32025Q22025Q12024Q42024Q32024Q22024Q12023Q42023Q32023Q22023Q1

Holdings

Sorted by value · 2025Q3
11 positions
1
UBERUBER TECHNOLOGIES INC
Technology·Software - Application
20.25%
of portfolio
Number of shares
30,270,518 sh
Holdings current value
$2.97B
Avg closing price
$72.86
+5.8%
Last action
Trimmed 0.2%
2025Q4
Current $77.12
2
BNBROOKFIELD CORP
Financial Services·Asset Management
19.21%
of portfolio
Number of shares
41,020,231 sh
Holdings current value
$2.81B
Avg closing price
$49.37
-5.6%
Last action
Added 98.8%
2025Q4
Current $46.59
3
HHHHOWARD HUGHES HOLDINGS INC
Real Estate·Real Estate - Development
10.58%
of portfolio
Number of shares
18,852,064 sh
Holdings current value
$1.55B
Avg closing price
$75.37
-12.5%
Last action
New holding
2025Q1
Current $65.94
4
GOOGALPHABET INC
Communication Services·Internet Content & Information
10.52%
of portfolio
Number of shares
6,324,031 sh
Holdings current value
$1.54B
Avg closing price
$106.37
+219.1%
Last action
Trimmed 2.5%
2025Q4
Current $339.40
5
QSRRESTAURANT BRANDS INTL INC
Consumer Cyclical·Restaurants
10.04%
of portfolio
Number of shares
22,915,496 sh
Holdings current value
$1.47B
Avg closing price
$44.61
+75.6%
Last action
Trimmed 0.2%
2025Q4
Current $78.32
6
AMZNAMAZON COM INC
Consumer Cyclical·Internet Retail
8.73%
of portfolio
Number of shares
5,823,316 sh
Holdings current value
$1.28B
Avg closing price
$223.89
+11.9%
Last action
Added 185.6%
2025Q4
Current $250.56
7
GOOGLALPHABET INC
Communication Services·Internet Content & Information
8.04%
of portfolio
Number of shares
4,843,973 sh
Holdings current value
$1.18B
Avg closing price
$130.57
+161.7%
Last action
Trimmed 46.2%
2025Q4
Current $341.68
8
CMGCHIPOTLE MEXICAN GRILL INC
Consumer Cyclical·Restaurants
5.77%
of portfolio
Number of shares
21,541,177 sh
Holdings current value
$844.20M
Avg closing price
$71.95
-50.2%
Last action
Exited
2025Q4
Current $35.83
9
HLTHILTON WORLDWIDE HLDGS INC
Consumer Cyclical·Lodging
5.37%
of portfolio
Number of shares
3,030,578 sh
Holdings current value
$786.25M
Avg closing price
$80.29
+324.7%
Last action
Trimmed 0.1%
2025Q4
Current $341.03
10
SEGSEAPORT ENTMT GROUP INC
Real Estate·Real Estate Services
0.79%
of portfolio
Number of shares
5,023,780 sh
Holdings current value
$115.15M
Avg closing price
$23.95
-5.2%
Last action
New holding
2025Q1
Current $22.71
11
HTZHERTZ GLOBAL HLDGS INC
Industrials·Rental & Leasing Services
0.71%
of portfolio
Number of shares
15,241,127 sh
Holdings current value
$103.64M
Avg closing price
$3.75
+98.0%
Last action
Added 1.6%
2025Q2
Current $7.43

Portfolio heatmap

Box size = % of portfolio · color = return since filing
UBER
20.25% · -21.3%
BN
19.21% · -32.1%
HHH
10.58% · -19.8%
GOOG
10.52% · +39.4%
QSR
10.04% · +22.1%
AMZN
8.73% · +14.1%
GOOGL
8.04% · +40.6%
CMG
5.77% · -8.6%
HLT
5.37% · +31.4%
SEG
0.79% · -0.9%
HTZ
0.71% · +9.3%

Sector exposure

Share of dollar value across the latest reported portfolio. Unclassified positions excluded.
  • Consumer Cyclical4 pos$4.38B29.9%
  • Technology1 pos$2.97B20.3%
  • Financial Services1 pos$2.81B19.2%
  • Communication Services2 pos$2.72B18.6%
  • Real Estate2 pos$1.66B11.4%
  • Industrials1 pos$103.6M0.7%