Bill Ackman Pershing Square Capital Management
Bill Ackman is the founder and CEO of Pershing Square Capital Management, a New York–based hedge fund. He employs an activist investing approach, seeking to influence the management and direction of the publicly traded companies in which he invests. Frequently in the public eye, Ackman has been noted for both high-profile successes and controversies, such as his well-known short position in Herbalife.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Meta Platforms (Facebook)
META
|
+$1.79B |
| 2 |
Amazon
AMZN
|
+$866M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Alphabet (Google) Class A
GOOGL
|
+$1.19B |
| 2 |
Chipotle Mexican Grill
CMG
|
+$844M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$45.9M |
| 4 |
Brookfield
BN
|
+$5.8M |
| 5 |
Uber
UBER
|
+$5.65M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 29.93% |
| 2 | Communication Services | 25.19% |
| 3 | Financials | 18.15% |
| 4 | Technology | 15.9% |
| 5 | Real Estate | 10.33% |
Similar funds
Bill Ackman's Q4 2025 Portfolio in Review
As of Q4 2025, Bill Ackman held 12 positions worth $15.5B, up 6% from $14.6B the previous quarter. Its ten largest holdings account for 99% of the portfolio.
Bill Ackman deployed $555M of net new capital in Q4 2025, opening 1 new position and adding to 1 existing holding. Its largest new stake was Meta Platforms (Facebook): 2,673,569 shares worth $1.76B.
By sector, the portfolio is most concentrated in Consumer Discretionary at 30% of assets, up from 30% a quarter earlier, followed by Communication Services and Financials.
On the sell side, the largest reduction was Alphabet (Google) Class A, an estimated $1.19B trimmed.
- Bill Ackman's largest Q4 2025 buy was Meta Platforms (Facebook): 2,673,569 shares worth $1.76B.
- Bill Ackman added most to Amazon in Q4 2025, an estimated $866M increase.
- Bill Ackman's biggest Q4 2025 reduction was Alphabet (Google) Class A, cutting an estimated $1.19B.
- Bill Ackman fully exited Chipotle Mexican Grill in Q4 2025, selling an estimated $844M.
- Bill Ackman's ten largest holdings make up 99% of its $15.5B portfolio in Q4 2025.
- Bill Ackman opened 1 new position and closed 1 in Q4 2025.
- Bill Ackman's portfolio value rose 6% quarter-over-quarter to $15.5B.
Based on Pershing Square Capital Management's 13F filing for Q4 2025, filed 17 Feb 2026.