(Reuters) - The following are some hot stocks including the so-called FAANG technology stocks - Facebook Inc FB.O, Amazon.com AMZN.O, Apple Inc AAPL.O, Netflix Inc NFLX.O and Google parent Alphabet Inc GOOGL.O - as well as other companies in which hedge fund managers either took new stakes, adding to or exiting existing positions in the first quarter, filings with the U.S. Securities and Exchange Commission showed on Tuesday.

Bags with the Facebook logo are seen before a content summit at France's Facebook headquarters in Paris, France, May 15, 2018. REUTERS/Charles Platiau

FACEBOOK INC

Some managers appeared to be betting on a recovery in shares of the world’s largest social media company, which were hammered after a data privacy scandal erupted in mid-March.

Suvretta Capital swooped in and opened a new position, buying 2.7 million shares. Viking Global Investors nearly doubled its position to 9 million shares, listing Facebook as the fund’s biggest position. Soroban Capital Partners also listed Facebook as a new position, owning 2.3 million shares.

Tiger Global more than doubled its position in Facebook by buying approximately 2.5 million shares.

But Stanley Druckenmiller’s Duquesne Family Office took another approach and closed out of its Facebook position during the first quarter.

AMAZON.COM

Druckenmiller’s Duquesne Family Office increased its stake in Amazon.com for a total of 170,853 shares as of the end of the first quarter. Soros Fund Management took a new 44,200-share stake in Amazon, along with an additional call-option position in the name.

ALPHABET

Soros Fund Management hiked its stake in Alphabet by 20,800 shares.

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NETFLIX

Soros Fund Management increased its share count in video-streaming company Netflix by 148,500 shares. Druckenmiller’s Duquesne Family Office opened a new stake in Netflix with 189,700 shares for a market value of $56 million as of the end of the first quarter.

PAYPAL HOLDINGS PYPL.O

Activist investor Carl Icahn sold out of his position, dumping 8 million shares. Meanwhile, David Einhorn’s Greenlight Capital took a new share stake during the first quarter with 67,000 shares for a market value of $5 million as of the end of the first quarter.

MYLAN NV MYL.O

Generic drug companies have been out of favor with investors and Leon Cooperman’s Omega Advisors sold out completely in the first quarter. Redwood Capital Management also exited, selling 100,000 shares.

MGM RESORTS INTERNATIONAL MGM.N

Omega Advisors sold all of its 831,990 shares in the casino operator.

SOTHEBY’S BID.N

The auction house attracted attention for activist investors a few years ago. Now Marcato Capital Management, one of the first to push for changes, has exited the position entirely, selling its remaining 646,291 shares. Similarly, Arrowstreet Capital and Broadview Advisors also exited.

WENDY’S CO WEN.O

Melvin Capital nearly doubled its stake to 6 million shares.

WYNN RESORTS LTD WYNN.O

The casino company’s chief executive resigned in February following allegations of sexual misconduct. Maverick Capital, Southeastern Asset Management and Thornburg Investment Management exited their stakes in the first quarter. But Melvin Capital, founded by one of Steven Cohen’s former fund managers, ramped up its position, buying 1.4 million shares to own 2.5 million.

ZIMMER BIOMET HOLDINGS ZBH.N

The medical device company is considering selling its dental products unit. Healthcor Management added to its position to own 2.3 million shares and Ceredex Value Advisors put on a new position to own 1.6 million shares.

JACK IN THE BOX JACK.O

Fast-food chain Jack in the Box, which sold its Qdoba chain to private equity company Apollo Global Management last year, has attracted new attention: activist fund Blue Harbour took a new stake to own 667,000 shares and Jana Partners doubled its stake to own 2.1 million shares. Similarly, Samlyn Capital and Nokota Management took new stakes.

UNITED TECHNOLOGIES UTX.N

Daniel Loeb’s Third Point owned 7.1 million shares at the end of the first quarter while Bill Ackman’s Pershing Square Capital Management owned 1.9 million shares. Other big buyers include Citadel Advisors which raised its stake to 3 million shares, Capital International Investors and Suvretta Capital Management.

PINNACLE FOODS INC PF.N

The frozen foods company has been pushed by Jana Partners, which owned 5.3 million shares at the end of the quarter, to review operations. Jana has since boosted its stake to 10.8 million shares. Speculation has mounted that a sale or acquisition might be in the offing. Meanwhile, Third Point exited its position, selling 1 million shares.