Top Money Managers Quietly Buying Amazon Stock Amid AI Data Center Growth

Pershing Square, Egerton Capital, Baupost Group, and Citadel have all increased their stakes in Amazon recently.

Published on Feb. 24, 2026

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Several prominent hedge funds and investment firms have been quietly accumulating shares of Amazon (NASDAQ: AMZN) in recent months, likely due to the company's growing dominance in the artificial intelligence (AI) data center market through its Amazon Web Services (AWS) cloud computing division. Firms like Pershing Square, Egerton Capital, Baupost Group, and Citadel have all significantly increased their Amazon holdings, seeing the stock as an attractive investment opportunity.

Why it matters

Amazon's AWS business is a key player in the rapidly expanding AI data center market, which is fueling increased institutional investor interest in the stock despite its recent underperformance. The buying activity from these prominent money managers could signal that Amazon shares are poised for a rebound.

The details

According to recent 13F filings, Bill Ackman's Pershing Square purchased 3.7 million Amazon shares in Q4 2025, making it a top holding. John Armitage's Egerton Capital added 1.8 million shares, making Amazon its single-largest position. Seth Klarman's Baupost Group increased its Amazon stake by over 2.1 million shares. Most notably, Ken Griffin's Citadel fund bought $2.5 billion worth of Amazon stock in Q4, bringing its total position to around $3.2 billion.

  • In the fourth quarter of 2025, several major investment firms increased their holdings in Amazon stock.

The players

Pershing Square

A hedge fund managed by Bill Ackman that purchased 3.7 million Amazon shares in Q4 2025.

Egerton Capital

A hedge fund managed by John Armitage that added 1.8 million Amazon shares, making it the firm's single-largest position.

Baupost Group

A hedge fund managed by Seth Klarman that increased its Amazon stake by over 2.1 million shares in Q4 2025.

Citadel

A hedge fund managed by Ken Griffin that purchased $2.5 billion worth of Amazon stock in Q4 2025, bringing its total position to around $3.2 billion.

Amazon

The e-commerce giant and parent company of Amazon Web Services, a leading provider of cloud computing and AI data center services.

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What’s next

Investors will be closely watching Amazon's upcoming earnings reports and guidance for further signs of growth in its AWS and AI data center businesses, which could drive the stock higher.

The takeaway

The buying activity from these prominent hedge funds suggests that Amazon's stock may be undervalued, particularly given the company's leading position in the rapidly expanding AI data center market through its AWS cloud computing division. This could signal an attractive investment opportunity for individual investors as well.