Mark Doerr

Mark Doerr is a principal and senior research analyst at Tech Insider covering medical technology companies with a focus on cardiovascular and related therapeutic technology. Mark leverages his prior experience as the director of marketing and business development at a medical device company, along with an extensive network of physician and industry relationships, to provide a unique perspective on the medtech sector. Prior to joining Tech Insider in 2011 he covered medical technology for four years at Craig-Hallum Capital, and has in total 20 years of financial and medtech industry experience.

Top Gainers: Vertex Pharmaceuticals Incorporated (NASDAQ:VRTX), XG Technology (NASDAQ:XGTI), Neurometrix (NASDAQ:NURO), CorMedix (NYSEMKT:CRMD), Doral Financial (NYSE:DRL)

Vertex Pharmaceuticals Incorporated (NASDAQ:VRTX) surged 40 percent after a study said a combination of two of the company’s drugs shows promise for treating cystic fibrosis. Vertex Pharmaceuticals Incorporated (NASDAQ:VRTX) stock performance was 40.41% in last session and finished the day at $93.53. Traded volume was 25.24million shares in the last session and the average volume…

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Unusual Volume: Meritor Inc (NYSE:MTOR), CCA Industries (NYSEMKT:CAW), Deswell Industries (NASDAQ:DSWL), Le Gaga Holdings (NASDAQ:GAGA), Truett-Hurst (NASDAQ:THST)

The company on June 23 reached a $500 million settlement with Eaton (NYSE: ETN) related to an anti-trust suit filed in 2006. Meritor Inc (NYSE:MTOR) had been slated to go to trial beginning Monday over damages that reportedly could have amounted to more than $2 billion. Meritor Inc (NYSE:MTOR) stock performance was 1.97% in last session…

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Insider buying: Prospect Capital Corporation (NASDAQ:PSEC), Opko Health (NYSE:OPK), Republic Services (NYSE:RSG), CyrusOne (NASDAQ:CONE), Rally Software Development (NYSE:RALY)

Prospect Capital Corp. (NASDAQ:PSEC) CEO John F. Barry bought 100,000 shares of the company’s stock in a transaction dated Friday, June 13th. The shares were purchased at an average cost of $10.37 per share, with a total value of $1,037,000.00. Following the purchase, the chief executive officer now directly owns 4,110,959 shares of the company’s…

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Active Stocks: Corinthian Colleges (NASDAQ:COCO), Sirius XM Holdings (NASDAQ:SIRI), General Electric Company (NYSE:GE), GDX, Pfizer Inc. (NYSE:PFE)

Corinthian Colleges Inc. (NASDAQ:COCO), the troubled Orange County for-profit college corporation, has cut a deal with the federal government that’s likely to force the sale of many schools and the closure of others.Corinthian Colleges Inc (NASDAQ:COCO) stock performance was 18.92% in last session and finished the day at $0.397. Traded volume was 23.90million shares in…

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HoT Watch List: Qihoo 360 Technology (NYSE:QIHU), Yandex (NASDAQ:YNDX), Youku Tudou (NYSE:YOKU), Renren Inc (NYSE:RENN), Baidu Inc (ADR) (NASDAQ:BIDU)

Microsoft Corp will work with Chinese Internet security specialist Qihoo 360 Technology Co Ltd (NYSE:QIHU) on mobile Internet and artificial intelligence technology, state media reported, as the U.S. software giant fights security concerns in the country. Microsoft and Qihoo 360 Technology Co Ltd (NYSE:QIHU) on June 9 signed a deal to “cooperate in mobile Internet…

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Industrial Goods Volatile Stocks: Chicago Bridge & Iron (NYSE:CBI), Hydrogenics (NASDAQ:HYGS), Hudson Technologies (NASDAQ:HDSN), IntriCon Corporation (NASDAQ:IIN), Micronet Enertec Technologies (NASDAQ:MICT)

Chicago Bridge & Iron Company N.V. (NYSE:CBI) saw unusually large options trading on Tuesday. Stock investors purchased 16,691 put options on the company, Stock Ratings Network.com reports. This represents an increase of 958% compared to the average daily volume of 1,577 put options. Chicago Bridge & Iron Company N.V. (NYSE:CBI) stock performance was -7.23% in…

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