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Find out what the top US investors have been buying and selling

It seems wise to follow what the most successful investors have been buying and selling. US Investment managers are required to file quarterly 13F reports detailing their holdings which gives investors a small insight into what the gurus have been doing.
Second-quarter filings for the end of June were released on 14 August and reveal some intriguing moves.
Berkshire Hathaway (BRK-B:NYSE) chairman Warren Buffett grabbed all the headlines following a near-halving of his stake in technology giant Apple (APPL:NASDAQ), although the position remains Berkshire’s largest quoted holding at just under a third of the public equities portfolio.
The sale boosted Berkshire’s cash pile to a record $277 billion at the end of June and consequently almost equals the total value of the group’s equity holdings, worth $285 billion.
More interestingly perhaps is Berkshire’s purchase of 690,000 shares in specialist beauty retailer Ulta Beauty (ULTA:NASDAQ) for around $266 million.
It looks like a classically opportunistic Buffett move given the shares have fallen around 42% since March, dragging the PE (price to earnings) ratio down to 14.7 from almost 20 times.
The business has grown sales and earnings in double-digits and achieves healthy returns on equity which have averaged 46% over the last five years.
Meanwhile, billionaire investor Bill Ackman revealed his first new holdings in over a year after taking a $239 million position in embattled sportswear giant Nike (NKE:NYSE) and a $321 million stake in investment management company Brookfield (BN:NYSE).
Nike’s growth has stumbled in the last two years in the face of increased competition from the likes of Adidas (ADS:ETR) and On Holding (ONON:NYSE), prompting the company to launch cheaper shoes.
Ackman first invested in Nike in 2017 and rode the position to a $100 million profit before selling out.
Fellow hedge fund manager David Tepper at Appaloosa Management sold down some of his largest holdings including Alibaba (BABA:NYSE), Amazon.com (AMZN:NASDAQ), Microsoft (MSFT:NASDAQ), Meta Platforms (META:NASDAQ) and Alphabet (GOOG:NASDAQ) and made a big percentage increase in ride-sharing group Lyft (LYFT:NASDAQ).
Activist investor Nelson Peltz at Trian Fund Management reduced his stake in Walt Disney Co (DIS:NYSE) by 92% after he failed to convince shareholders to appoint himself and former Disney chief finance officer Jay Rasulo to the board in a proxy battle.
New holdings include do-it-yourself moving and storage operator U-Haul (UHAL:NYSE) and pest control and hygiene company Rentokil Initial (RTO).
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