Las Vegas Sands–UBS downgraded the casino operator's stock to "neutral" from "buy", citing slower demand among the company's high-end VIP customers.
PPL–Private equity firm Riverstone Holdings will buy PPL's competitive energy business and merge it with one of its own holdings to form a new, publicly traded independent power producer.
Sprint–Macquarie upgraded Sprint to "outperform" from "neutral", on optimism its deal to buy T-Mobile U.S. will be completed.
Michael Kors–Credit Suisse began coverage on the luxury goods maker with an "outperform" rating, on the strength of the Michael Kors brand name and prospects for multi-year growth.
Coupons.com–Goldman Sachs downgraded the digital coupon company's stock to "sell" from "neutral" on a valuation basis, following a 66 percent gain in the past month.
Pep Boys–The auto parts retailer earned three cents per share for the first quarter, three cents below estimates, with revenue also below forecasts. Lower tire prices were among the reasons cited by Pep Boys for lower-than-expected quarterly results.
Dendreon—Chief executive officer John Johnson planning to step down on August 15. The drug maker said Johnson is resigning for personal reasons.
Facebook–The social network has hired David Marcus as a vice president in charge of its messaging products. Marcus will leave his current job as president of eBay's PayPal unit on June 27.
Wal-Mart–The retailer said the CEO of its Walmart.com website, Joel Anderson, is stepping down. He'll be succeeded by Fernando Madeira, currently CEO of the company's Latin America eCommerce unit. Anderson will become president of teen discount retailer Five Below.
Chico's FAS– Chico's is considering selling itself to private equity firms, according to the Financial Times. The retailer currently has a market value of about $2.4 billion.
Sony–The electronics giant will launch a PlayStation TV set-top box later this year. The $99 device will allow users to view movies and TV episodes from the PlayStation store, as well as stream PlayStation games.
Abbott Labs, Mead Johnson Nutrition–These and other infant formula makers could move as the FDA releases new, tougher manufacturing rules for infant formula makers today.
Hewlett-Packard–HP announced two new high-end computer server products under the new Apollo brand name.
Time Warner–The media giant is in talks to buy a stake in New York-based Vice Media, according to Sky News.
—By CNBC's Peter Schacknow
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