Billionaire Funds Boost Amazon in Q1 13F Filings

Bill Ackman, David Tepper and other billionaire fund managers increased their Amazon stakes in first-quarter 2026 13F filings. The filings show Amazon as the most frequently overweighted stock across several major hedge fund portfolios.

Pershing Square added about 1.84 million Amazon shares in Q1, a roughly 19% increase. The filing lists Amazon among Pershing Square’s largest disclosed holdings alongside Brookfield and Uber and notes a newly initiated Microsoft position.

Appaloosa Management almost doubled its Amazon holding, a 98% increase that made the stock the firm’s largest disclosed equity position, valued at about $900 million. Appaloosa also raised its Uber stake by 242% and added Taiwan Semiconductor while trimming positions in Nvidia, Alphabet and Alibaba.

Funds managed by Daniel Loeb, Seth Klarman and Chase Coleman also listed Amazon among their top U.S. equity holdings in the same filings.

The filings show a broader pattern of allocations to AI-related and long-duration growth names. Several managers increased or held stakes in Alphabet, Nvidia, Meta Platforms and Taiwan Semiconductor.

Berkshire Hathaway’s filing showed a sizable purchase of Alphabet shares and a reduction in its Bank of America stake. Portfolios linked to Bill Gates and Sir Chris Hohn showed concentrations in industrials, railways and payment companies such as Visa.

Fund disclosures cited three commercial drivers for adding Amazon: steady e-commerce cash flow, expected growth in Amazon Web Services as companies expand AI infrastructure, and rising digital advertising revenue.

13F filings report U.S.-listed long equity positions as of March 31 and are filed with about a 45-day delay. The reports do not include options, short positions or many non-U.S. holdings, so they provide a partial snapshot of fund exposure.

The filings covering the first quarter were made public in mid-May. Traders and analysts typically combine 13F snapshots with current market data and company reports when assessing fund positions.