Activist · CIK 0001336528

Bill Ackman

Pershing Square
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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 115.0% 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
5Y+23.5%Full performance →
Quarter
2025Q42025Q32025Q22025Q12024Q42024Q32024Q22024Q12023Q42023Q32023Q22023Q1

Holdings

Sorted by value · 2024Q4
1 positions
1
HTZHERTZ GLOBAL HLDGS INC
Industrials·Rental & Leasing Services
100.00%
of portfolio
Number of shares
12,713,963 sh
Holdings current value
$46.53M
Avg closing price
$3.75
+86.0%
Last action
Added 1.9%
2025Q2
Current $6.98

Portfolio heatmap

Box size = % of portfolio · color = return since filing
HTZ
100.00% · +90.7%

Sector exposure

Share of dollar value across the latest reported portfolio. Unclassified positions excluded.