Alere Inc. (NYSE:ALR) shares were up 2.2% during mid-day trading on Wednesday . The company traded as high as $39.88 and last traded at $39.47, with a volume of 480,056 shares trading hands. The stock had previously closed at $38.61.

A number of research analysts have issued reports on ALR shares. Craig Hallum upgraded shares of Alere from a “hold” rating to a “buy” rating in a research report on Friday, April 29th. Leerink Swann restated a “buy” rating and set a $56.00 target price on shares of Alere in a research report on Tuesday. Canaccord Genuity upgraded shares of Alere from a “hold” rating to a “buy” rating in a research report on Friday. Jefferies Group reaffirmed a “hold” rating on shares of Alere in a research note on Tuesday. Finally, Zacks Investment Research raised Alere from a “sell” rating to a “hold” rating in a research note on Monday, April 4th. Six investment analysts have rated the stock with a hold rating and four have assigned a buy rating to the stock. Alere currently has an average rating of “Hold” and a consensus price target of $52.38.

The stock has a 50 day moving average price of $41.62 and a 200-day moving average price of $45.04. The firm has a market capitalization of $3.40 billion and a price-to-earnings ratio of 10.42.

A number of large investors recently made changes to their positions in the company. Jennison Associates LLC increased its stake in shares of Alere by 124.1% in the fourth quarter. Jennison Associates LLC now owns 1,009,883 shares of the company’s stock valued at $39,476,000 after buying an additional 559,240 shares during the period. Diamond Hill Capital Management Inc. increased its position in shares of Alere by 12.1% in the fourth quarter. Diamond Hill Capital Management Inc. now owns 2,306,319 shares of the company’s stock worth $90,154,000 after buying an additional 248,224 shares during the period. Tamarack Advisers LP acquired a new position in shares of Alere during the fourth quarter worth about $8,795,000. Marshall Wace LLP acquired a new position in shares of Alere during the fourth quarter worth about $4,585,000. Finally, Trexquant Investment LP acquired a new position in shares of Alere during the fourth quarter worth about $1,751,000.

Alere Inc is a provider of health information through diagnostic tests. The Company operates through professional diagnostics, patient self-testing, consumer diagnostics and, corporate and other segments. The professional diagnostics segment includes an array of diagnostic test products and other in vitro diagnostic tests marketed to medical professionals and laboratories for detection of diseases and conditions within its areas of focus.

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