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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 · 2025Q4
11 positions
1
BNBROOKFIELD CORP
Financial Services·Asset Management
18.15%
of portfolio
Number of shares
61,403,089 sh
Holdings current value
$2.82B
Avg closing price
$49.37
-5.6%
Last action
Added 49.7%
2025Q4
Current $46.59
2
UBERUBER TECHNOLOGIES INC
Technology·Software - Application
15.90%
of portfolio
Number of shares
30,207,734 sh
Holdings current value
$2.47B
Avg closing price
$72.86
+5.8%
Last action
Trimmed 0.2%
2025Q4
Current $77.12
3
AMZNAMAZON COM INC
Consumer Cyclical·Internet Retail
14.28%
of portfolio
Number of shares
9,607,824 sh
Holdings current value
$2.22B
Avg closing price
$223.89
+11.9%
Last action
Added 65.0%
2025Q4
Current $250.56
4
GOOGALPHABET INC
Communication Services·Internet Content & Information
12.46%
of portfolio
Number of shares
6,163,871 sh
Holdings current value
$1.93B
Avg closing price
$106.37
+219.1%
Last action
Trimmed 2.5%
2025Q4
Current $339.40
5
METAMETA PLATFORMS INC
Communication Services·Internet Content & Information
11.37%
of portfolio
Number of shares
2,673,569 sh
Holdings current value
$1.76B
Avg closing price
$660.09
+4.3%
Last action
New holding
2025Q4
Current $688.55
6
QSRRESTAURANT BRANDS INTL INC
Consumer Cyclical·Restaurants
10.05%
of portfolio
Number of shares
22,866,773 sh
Holdings current value
$1.56B
Avg closing price
$44.61
+75.6%
Last action
Trimmed 0.2%
2025Q4
Current $78.32
7
HHHHOWARD HUGHES HOLDINGS INC
Real Estate·Real Estate - Development
9.69%
of portfolio
Number of shares
18,852,064 sh
Holdings current value
$1.50B
Avg closing price
$75.37
-12.5%
Last action
New holding
2025Q1
Current $65.94
8
HLTHILTON WORLDWIDE HLDGS INC
Consumer Cyclical·Lodging
5.60%
of portfolio
Number of shares
3,028,664 sh
Holdings current value
$869.98M
Avg closing price
$80.29
+324.7%
Last action
Trimmed 0.1%
2025Q4
Current $341.03
9
GOOGLALPHABET INC
Communication Services·Internet Content & Information
1.37%
of portfolio
Number of shares
678,297 sh
Holdings current value
$212.31M
Avg closing price
$130.57
+161.7%
Last action
Trimmed 86.0%
2025Q4
Current $341.68
10
SEGSEAPORT ENTMT GROUP INC
Real Estate·Real Estate Services
0.64%
of portfolio
Number of shares
5,023,780 sh
Holdings current value
$99.32M
Avg closing price
$23.95
-5.2%
Last action
New holding
2025Q1
Current $22.71
11
HTZHERTZ GLOBAL HLDGS INC
Industrials·Rental & Leasing Services
0.50%
of portfolio
Number of shares
15,241,127 sh
Holdings current value
$78.34M
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
BN
18.15% · +1.5%
UBER
15.90% · -5.6%
AMZN
14.28% · +8.6%
GOOG
12.46% · +8.2%
META
11.37% · +4.3%
QSR
10.05% · +14.8%
HHH
9.69% · -17.3%
HLT
5.60% · +18.7%
GOOGL
1.37% · +9.2%
SEG
0.64% · +14.9%
HTZ
0.50% · +44.6%

Sector exposure

Share of dollar value across the latest reported portfolio. 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%