Bill Ackman
Pershing Square Capital Management
Founder of Pershing Square. Runs a concentrated portfolio of a dozen or so large companies and is known for public activist campaigns.
13F portfolio value
Q1 2026
$13.71B
1-year growth
+14.9%
2-year growth
+27.4%
Positions
11
Top 10 share
99.9%
Quarterly turnover
18.1%
Last filed
May 15, 2026
Q1 2026: summary
MakklerAI- MSFT was a new position at 15.3% of the portfolio, worth $2.1B.
- AMZN shares rose 19.2%; its portfolio weight increased from 14.3% to 17.4%, reaching $2.4B.
- GOOG and GOOGL shares fell 94.9% and 95.2%; HLT was sold out. BN, UBER and QSR were also trimmed.
- The portfolio held 11 positions worth $13.7B; its top ten made up 99.9%, with 18.1% turnover.
PROStill at the same price?
A 13F arrives 45 days late. See the estimated buy price of the other 9 positions, the move since, and where each stands against Makkler Fair Value with MakklerPRO.
BNBrookfield Corporation17.6%-2.8%- Price
- $36.67
- Since est. buy
- -17.3%
- Fair Value gap
- -31.5%
AMZNAmazon.com, Inc.17.4%+19.2%- Price
- $258.58
- Since est. buy
- +17.4%
- Fair Value gap
- +100%
UBERUber Technologies, Inc.15.7%-0.8%- Price
- $71.32
- Since est. buy
- Fair Value gap
MSFTMicrosoft Corporation15.3%New- Price
- $543.45
- Since est. buy
- Fair Value gap
QSRRestaurant Brands International, Inc.12.2%-1.0%- Price
- $71.27
- Since est. buy
- Fair Value gap
METAMeta Platforms Inc Class A11.1%Unchanged- Price
- $762.50
- Since est. buy
- Fair Value gap
HHHHoward Hughes Holdings Inc.8.7%Unchanged- Price
- $72.49
- Since est. buy
- Fair Value gap
SEGSeaport Entertainment Group Inc.0.8%Unchanged- Price
- $22.31
- Since est. buy
- Fair Value gap
GOOGAlphabet Inc. Class C0.7%-94.9%- Price
- $349.52
- Since est. buy
- Fair Value gap
HTZHertz Global Holdings Inc0.5%Unchanged- Price
- $1.92
- Since est. buy
- Fair Value gap
GOOGLAlphabet Inc. Class A<0.1%-95.2%- Price
- $353.78
- Since est. buy
- Fair Value gap
Values are US dollar amounts as of the filing. The estimated buy price is the quarter's average close; Fair Value is the same model as on Makkler's stock pages.
MakklerAI
Ask MakklerAI about Bill Ackman's portfolio
Explore this quarter's moves and where each position stands against its estimated buy price and Makkler Fair Value. Answers are based on the 13F and today's prices.