The Bill Ackman Amazon investment has become one of Pershing Square Capital Management’s largest public-stock positions. Its latest regulatory filing listed 11,451,981 Amazon shares with a quarter-end value of about $2.389 billion. The position reflects a long-term bet on Amazon Web Services, advertising, retail efficiency, and artificial intelligence infrastructure.
Pershing Square first disclosed the investment after buying shares during the market decline in April 2025. Ackman’s team later increased the holding as Amazon’s operating results improved and its cloud business accelerated.
| Key fact | Current information |
| Investor | Pershing Square Capital Management |
| Founder and CEO | Bill Ackman |
| Company | Amazon.com Inc. |
| Ticker | AMZN |
| Latest disclosed shares | 11,451,981 |
| Quarter-end filing value | About $2.389 billion |
| Main investment themes | AWS, advertising, retail margins and AI |
| Main risks | Heavy capital spending, valuation and competition |
Direct answer: Ackman appears to view Amazon as a high-quality company whose earnings can grow through several business lines. Pershing Square bought during a period of tariff and economic concern, then expanded the position as AWS growth, advertising revenue and operating profits strengthened.
How Large Is the Bill Ackman Amazon Position?
Pershing Square’s latest Form 13F reported 11,451,981 Amazon shares, valued at $2,385,104,083 at the end of the reporting period. That filing value works out to roughly $208.27 per share, though it isn’t the fund’s precise purchase price.
The position was larger than Pershing Square’s reported holdings in Meta Platforms, Restaurant Brands International and Howard Hughes Holdings. Only Brookfield’s disclosed quarter-end value was slightly higher. This makes Amazon a central holding rather than a small experimental trade.
Earlier reports showed that the fund held about 9.6 million shares after increasing its position by 65% during the fourth quarter of 2025. The latest filing therefore indicates another increase of about 1.84 million shares, or approximately 19%.
Readers following major investors can find similar profiles and financial explainers in Worthxyra’s Business section. The site also organizes broader research-driven features in its Articles section. Both category pages were live when checked, though neither contained published posts at that time.
When Did Pershing Square Buy Amazon?
Ackman’s firm began building the position in April 2025, when markets fell after the United States announced broad new tariffs. Amazon shares declined as investors worried about consumer demand, imported merchandise costs and pressure on retail margins.
Pershing Square saw the selloff differently. Its investment team concluded that tariffs were unlikely to cause a material reduction in Amazon’s retail earnings. The team also believed Amazon could manage a temporary slowdown in AWS while continuing to improve the wider company’s profitability.
The fund needed capital for the purchase, so it exited Canadian Pacific Kansas City and trimmed several other investments. Those decisions show that Amazon had to compete for space inside a concentrated portfolio. Pershing Square wasn’t adding the stock with spare cash; it was reallocating money from other established holdings.
That distinction matters. A concentrated fund gives each major position more influence over total performance. The growing allocation suggests that Ackman’s team developed stronger conviction after its initial purchase.
Why Does Bill Ackman Like Amazon?
Pershing Square’s public comments point to four connected reasons.
1. AWS combines growth with high operating profit
Amazon Web Services remains the company’s strongest profit engine. In the first quarter of 2026, AWS sales rose 28% from the prior year to $37.6 billion. AWS operating income increased to $14.2 billion from $11.5 billion.
Those figures matter because cloud growth can have an outsized effect on Amazon’s total earnings. AWS generated well over half of the company’s first-quarter operating income, despite representing a much smaller share of sales.
Artificial intelligence demand may support further cloud expansion. Amazon is investing in data centers, networking equipment and its own Trainium and Graviton chips. Its custom-chip business exceeded a $20 billion annual revenue run rate during the quarter.
2. Advertising provides another profitable growth source
Amazon’s advertising operation has become a major business in its own right. The company reported more than $70 billion in trailing-12-month advertising revenue by the first quarter of 2026.
The business benefits from Amazon’s direct knowledge of shopping activity. Merchants can place ads near the moment a customer is considering a purchase. This gives the platform commercial intent that many general media and social platforms can’t match.
Advertising also reduces Amazon’s dependence on low-margin product sales. As this revenue stream grows, it can support higher companywide margins.
3. Retail margins have room to improve
Pershing Square praised CEO Andy Jassy’s focus on efficiency. The investment team argued that better operations could produce further margin expansion while revenue continues to rise.
Recent results support part of that case. First-quarter North American operating income increased from $5.8 billion to $8.3 billion. International operating income rose from $1 billion to $1.4 billion. Total operating income reached $23.9 billion, up from $18.4 billion one year earlier.
Amazon has spent years placing inventory closer to customers and redesigning its fulfillment network. Faster delivery can increase order frequency while shorter delivery routes may lower transportation costs.
4. Several businesses can reinforce each other
Amazon isn’t only an online retailer. Its operations include cloud computing, advertising, subscriptions, entertainment, logistics, grocery services and devices.
These businesses can strengthen each other. Prime encourages repeat shopping. Marketplace activity attracts advertisers. Retail scale supplies data and logistics volume. AWS funds research and serves businesses building AI products.
This combination helps explain why Pershing Square described the company as one of its most admired businesses. The appeal isn’t tied to a single product cycle.
What Has Changed Since the Initial Investment?
Amazon’s financial performance has strengthened since Pershing Square started buying.
| Metric | First quarter 2025 | First quarter 2026 | Change |
| Net sales | $155.7 billion | $181.5 billion | Up 17% |
| AWS sales | About $29.3 billion | $37.6 billion | Up 28% |
| Operating income | $18.4 billion | $23.9 billion | Up 30% |
| Net income | $17.1 billion | $30.3 billion | Up 77% |
| Operating cash flow, trailing 12 months | $113.9 billion | $148.5 billion | Up 30% |
Amazon’s reported net income included a $16.8 billion pre-tax gain related to its Anthropic investment. Investors shouldn’t treat the entire increase as recurring operating profit.
The cleaner signals are AWS growth, rising segment operating income and higher operating cash flow. These measures offer stronger evidence that the underlying businesses expanded.
The Main Risks Behind the Investment
The position may be large, but the investment case isn’t risk-free.
Cloud competition remains intense
AWS competes with Microsoft Azure, Google Cloud and specialized AI infrastructure providers. Customers may also use more than one cloud platform, which can weaken vendor loyalty.
Amazon must keep improving performance and pricing while funding new capacity. A slowdown in AWS growth would affect one of the strongest parts of the investment thesis.
Retail remains sensitive to consumers and costs
Amazon’s stores business faces labor expenses, transportation costs, tariffs and price competition. Economic weakness could reduce discretionary purchases or encourage customers to trade down.
The company has scale, but scale doesn’t remove retail risk. It can also make rapid growth harder because each percentage increase requires billions of dollars in added sales.
A good company can still be an expensive stock
Ackman’s team bought after a sharp decline because it considered the valuation attractive. Future buyers may face a different price and a different expected return.
Following a prominent investor without reviewing the current valuation can be dangerous. Pershing Square’s purchase price, portfolio structure, tax position and investment horizon may differ from those of an individual shareholder.
Should Investors Follow Ackman Into Amazon?
Ackman’s decision provides a useful research signal, not an automatic buy instruction.
The strongest case for Amazon rests on AWS growth, advertising, improving retail margins and long-term AI demand. The strongest counterargument is that capital spending has climbed rapidly while investors already expect substantial future growth.
Before making a decision, consider:
- Amazon’s current valuation against expected earnings and cash flow
- The portion of your portfolio already exposed to technology stocks
- Whether you can tolerate large short-term price declines
- The returns Amazon must earn on its AI infrastructure
- The possibility that cloud growth slows as competition increases
Verdict: Pershing Square’s increasing stake supports the view that Amazon remains a high-conviction compounder for long-term investors. It doesn’t prove that the stock is attractive at every price. The investment works best as a starting point for research.
If you want to know about Paige Bueckers Net Worth then visit our Business category.
Frequently Asked Questions
The shares are held through Pershing Square Capital Management rather than as a disclosed personal holding. Its latest Form 13F listed 11,451,981 Amazon shares valued at about $2.385 billion at quarter-end.
Pershing Square began buying during the market decline in April 2025. The position was discussed publicly in May 2025.
The firm cited confidence in Amazon’s ability to handle tariff pressure, manage AWS conditions and expand profit margins under CEO Andy Jassy.
Yes. Public filings and portfolio reports indicate that Pershing Square added shares after the initial purchase, including a further increase during the first quarter of 2026.
Amazon was one of Pershing Square’s largest disclosed U.S.-listed equity positions in its latest filing. Brookfield had a slightly higher reported quarter-end value.
No. Large investors can be early or wrong, and their circumstances may differ from yours. Any investment decision should reflect the current valuation, risks, time horizon and portfolio needs.
