Benzinga's M&A Chatter for Wednesday December 4, 2013

The following are the M&A deals, rumors and chatter circulating on Wall Street for Wednesday December 4, 2013:

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Shares of BRE Properties

surged higher Wednesday on report from

of a possible bid from Essex Property Trust

of $5 billion. Shares were halted for 5 minutes following the report on a circuit breaker. Land and Buildings had offered $60 per share for BRE on July 31. Spokespersons for BRE Properties and Essex Property Trust were not available for comment. BRE Properties closed Wednesday at $59.11, a gain of more than 10% on 13 times average volume.

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The Medicines Company

announced Wednesday that it has acquired Rempex Pharmaceuticals for $140 million in an upfront payment at the closing. The Medicines Company has also agreed to pay Rempex milestone payments, including certain development and regulatory approval milestones totaling $214 million, and commercial milestones totaling $120 million. The Medicines Company closed Wednesday at $37.70, a gain of 3%.

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that it was acquired by Yahoo

: "Today, we're excited to announce that Ptch will be joining Yahoo! As part of the Yahoo team, we'll be able to focus our efforts and leverage our technology to make Yahoo's photo and video platforms the best in the world. Yahoo closed Wednesday at $38.13, a gain of more than 4%.

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3D Systems (NYSEL DDD) announced Wednesday, the acquisition of Figulo, a provider of 3D printed ceramics. Terms were not disclosed. 3D Systems closed Wednesday at $77.64, a loss of $0.38