Bill Ackman, the billionaire hedge fund manager behind Pershing Square Capital Management, continued to tilt his portfolio further toward Big Tech’s “Magnificent Seven.”
According to the firm’s latest 13F filing with the SEC, Pershing made a new billion-dollar buy and expanded its stake in another major holding in Q2.
Both moves shifted Pershing Square further toward the artificial intelligence boom via two of the market's most influential stocks.
The so-called “Magnificent Seven” stocks and their stock symbols are:
- Apple AAPL
- Microsoft MSFT
- Amazon AMZN
- Alphabet GOOGL/GOOG
- Nvidia NVDA
- Meta META
- Tesla TSLA
These stocks have carried much of the market's momentum in recent years. Hedge funds have increasingly turned to them as safe havens and growth drivers, especially as AI accelerates adoption across virtually every industry.
Who is Bill Ackman?
Bill Ackman is a hedge fund manager and founder of Pershing Square Capital Management, a money manager with $13.7 billion in assets under management, according to its August 2025 13F filing with the SEC.
Ackman's investment strategy involves making large, concentrated bets on companies that he thinks are undervalued relative to their opportunities. His holding period is best defined as long-term.
Pershing Square Capital Management's 13F report showed that Ackman owned only 11 publicly traded stocks as of June 30.
His success as a hedge fund manager has translated into a net worth of $8.25 billion, ranking him 420th on Bloomberg's Billionaires Index.
Ackman tilts more money toward the Mag 7, AI stocks
Ackman has now joined those investing in the magnificent seven stocks more forcefully.
His 13F filing reveals that more than 24% of Pershing Square's portfolio is concentrated in just two mega-cap giants: Amazon (AMZN) and Alphabet (GOOGL) .
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While he has long been comfortable running a concentrated portfolio strategy, this latest shift marks one of the clearest signs yet of Ackman's conviction in AI as a structural trend.
Ackman makes new billion-dollar Amazon buy
Ackman’s most eye-catching move last quarter was purchasing 5.82 million shares of Amazon, valued at more than $1.3 billion.
The e-commerce and cloud giant now represents Pershing’s fourth-largest holding, accounting for about 9.3% of the fund’s portfolio.
Amazon’s latest quarterly results underscored why Ackman may see long-term value. The company beat Wall Street estimates on both the top and bottom lines, though shares slid after some analysts were disappointed by slower-than-expected growth in its Amazon Web Services (AWS) unit.
Amazon management has emphasized that heavy investment in AI-related infrastructure should pay dividends over time as demand for AI accelerates on a broad scale
Related: JPMorgan drops 3-word verdict on Amazon stock post-earnings
Amazon’s stock has been volatile in 2025. Shares slipped earlier this year after President Donald Trump announced a new round of tariffs on April 2, rattling markets. Yet the stock has since regained momentum and is now up around 5% year to date.
Pershing doubles down on a familiar name
Pershing Square also boosted its position in Alphabet’s Class A shares by 21% during the quarter. Combined with its existing holdings in Alphabet's Class C shares, the parent company of Google now represents Pershing’s third-largest investment.
This increased exposure further highlights Ackman’s conviction that Google’s scale, cash flow, and leadership in AI make it a resilient bet despite heightened competition from Microsoft, OpenAI, and others.
Ackman’s bets fit a broader hedge fund trend: Doubling down on the Magnificent Seven stocks driving market performance in the AI era.
Related: Alphabet (Google) shares news on bold $85 billion investment
For Pershing Square, Amazon and Alphabet together now represent nearly a quarter of its total portfolio, which signals enormous confidence in Big Tech’s staying power, particularly as AI reshapes industries from retail and logistics to search and advertising.
Ackman’s AI-driven playbook
Ackman has never shied away from bold, concentrated bets, and his latest moves suggest he sees the AI wave as a long-term structural trend rather than a passing hype cycle.
By targeting Amazon’s cloud-driven growth and Alphabet’s dominance in digital advertising and search, he appears to be positioning Pershing to benefit from two of the most important technology trends of the next decade.
While risks remain investing in these two tech juggernauts, from regulatory scrutiny to intensifying competition, Pershing's Q2 activity reinforces the view that Ackman believes the Magnificent Seven are not just market leaders, but rather foundational to the future of global technology.
Related: Warren Buffett buys battered UnitedHealth, sells more Apple stock
