Benzinga's M&A Chatter for Thursday June 4, 2015

The following are the M&A deals, rumors and chatter circulating on Wall Street for Thursday June 4, 2015:

:

Opko Health, Inc.

and Bio-Reference Laboratories, Inc.

announced Thursday, that Opko will acquire Bio-Reference Laboratories. Under the terms of the agreement, BRLI common stock will receive 2.75 shares of OPKO common stock for each share of BRLI common stock, valued at $52.58 per share of BRLI common stock. The deal is expected to be completed during H2 of 2015. Bio-Reference Laboratories shares rose 20% Thursday, to close at $39.60, while Opko shares lost 15% to close at $16.47.

:

Shares of T-Mobile US

traded as high as $43.25 Thursday, while shares of Dish Network

traded at $76.50, following a

report Wednesday, that the two companies were in merger talks, according to sources. Dish CEO Charlie Ergen would reportedly become the chairman of the combined company, with T-Moblie CEO John Legere becoming the CEO of the new entity. According to the sources, the purchase price remains an unresolved issue and could be weeks away. Fox Business' Charlie Gasparino said his sources say the deal could be announced in the next two weeks. T-Mobile shares rose 2.5% Thursday, closing at $39.34, while Dish shares rose almost 5%, closing at $74.25.

:

GigOptix, Inc. (NYSE MKT:

) announced Thursday, that it sent a letter to the board of directors of GSI Technology, Inc.

, proposing to acquire all of the outstanding shares of GSI Technology's common stock for $6.50 per share. GigOptix would acquire all of the outstanding shares of GSI Technology common stock for $6.50, consisting of a not yet determined combination of cash, shares of GigOptix and a special cash dividend payable by GSI Technology. GigOptix anticipates the cash consideration can exceed $6.00 per share. GigOptix expects the proposed transaction would be completed by the end of 2015. GSI Technology shares rose almost 3% Thursday, closing at $5.41. GSI Technology shares fell 5.7%, to close at $1.49.