Benzinga's M&A Chatter for Wednesday July 2, 2014

The following are the M&A deals, rumors and chatter circulating on Wall Street for Wednesday July 2, 2014:

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Facebook

announced Wednesday, that it has acquired advertising technology company

. Terms of the deal were not disclosed. Facebook shares closed Wednesday at $66.45, a loss of more than 2%.

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Shares of Devon Energy

rose early Wednesday, on unconfirmed market chatter of a potential bid from Chevron

. The rumored offer is $90.00 per share. The two companies have been mentioned previously as a possible pairing. Spokespersons for Devon and Chevron declined comment on the rumor. Devon Energy closed Wednesday at $78.58, a loss of $0.50.

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Kroger

and online retailer of healthy living products, Vitacost.com

announced Wednesday a definitive merger agreement, under which Kroger will purchase all outstanding shares of Vitacost.com for $8.00 per share in cash, or approximately $280 million, through a tender offer. The deal is expected to close in Q3 of 2014. Vitacost.com closed Wednesday at $7.97, a gain of 27%.

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Shares of Shutterfly

surged higher in the premarket Wednesday, on a report from

, that the digital photo company had hired Qatalyst Partners, to assist in a sale of the company, according to sources. A spokesperson for Shutterfly declined comment on the report. Shutterfly closed Wednesday at $50.00, a gain of almost 15%.

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Techne Corporation (d/b/a Bio-Techne)

, announced Wednesday, that it has acquired supplier of antibodies and other reagents for life science research, Novus Biologicals for $60 million in cash. The deal was financed with cash on hand. Bio-Techne closed Wednesday at $93.65, a loss of $0.57.