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Midday movers: Twitter, General Motors, Visa & More

The Twitter banner hangs at the NYSE.
Adam Jeffery | CNBC
The Twitter banner hangs at the NYSE.

Take a look at some of Monday's midday movers:

Twitter moved higher after its co-founders, Jack Dorsey and Evan Williams, along with CEO Richard Costolo, all said they have no plans to sell any of their company shares.

General Motors gained ground. The automaker said the heads of its communications and human resources divisions would be leaving the company.

Citigroup climbed after reporting better-than-expected quarterly earnings.

MasterCard and Visa both rose after Robert Baird and Pacific Crest recommended the stocks, respectively.

WebMD Health soared after the health information provider said it expected its first-quarter results to top its earlier forecast, due in part to an improvement in sales.

Edwards Lifesciences gained and Medtronic fell after Edwards Lifesciences won a preliminary injunction limiting the sale of Medtronic's CoreValve system. A federal jury in 2010 found the system infringed on a patent held by Edwards.

Aspen Insurance Holdings came off its lows after it rejected an unsolicited $3.2 billion cash and stock offer from Endurance Specialty Holdings, calling it a strategic mismatch.

J.M. Smucker rose on news it raised its share repurchase plan by five million shares.

Walgreen moved higher. The Financial Times reported the drugstore chain is under pressure from a group of shareholders to consider relocating to Europe to gain tax benefits.

Yahoo! gained ground after SunTrust upgraded the stock to buy from neutral, with a $40 price target, citing valuation.

Orbitz Worldwide rose after the online travel company named Scott Forbes as its non-executive chairman, replacing Jeff Clarke, who resigned.

Nabors Industries advanced after the oilfield services and drilling company said it would separate the roles of chairman and CEO after the tenure of CEO Anthony Petrello ends. It will also limit severance payments for executives.

TD Ameritrade Holding and Charles Schwab rose after UBS upgraded both to buy from neutral.

Bebe Stores moved higher after Janney Montgomery Scott upgraded the stock to buy from neutral.

Stratasys climbed after Goldman Sachs began coverage with a buy rating and $146 price target.

3D Systems fell after Goldman began coverage with a neutral rating and $63 price target.

Pandora Media rose after SunTrust began coverage with a buy rating and $34 price target.

Xerox moved higher after Piper Jaffray repeated an overweight rating, saying the stock is a compelling "old stock" play.

(Read More: See CNBC's Market Insider Blog)

—By CNBC's Rich Fisherman.

Questions? Comments? Email us at marketinsider@cnbc.com

  • Patti Domm

    Patti Domm is CNBC Executive Editor, News, responsible for news coverage of the markets and economy.

  • A CNBC reporter since 1990, Bob Pisani covers Wall Street from the floor of the New York Stock Exchange.

  • CNBC Senior Commodities Correspondent and Personal Finance Correspondent

  • JeeYeon Park is a writer for CNBC.com. Follow her on Twitter: @JeeYeonParkCNBC

  • Rick Santelli joined CNBC Business News as an on-air editor in 1999, reporting live from the floor of the Chicago Board of Trade.

  • Senior Producer at CNBC's Breaking News Desk.