Benzinga's M&A Chatter for Thursday April 21, 2016

The following are the M&A deals, rumors and chatter circulating on Wall Street for Thursday April 21, 2016

:

Blackstone Group LP

is considering a bid for Concordia Healthcare Corp.,

, according to sources as reported by

on Thursday. The two sides are in talks regarding a potential deal, the sources said, but a deal may not happen. Concordia closed at $30.50 on Thursday, up 25%.

:

CombiMatrix Corporation

announced Thursday, it has begun to explore strategic options, including M&A and business development opportunities. CombiMatrix has hired Torreya Capital, a division of the Financial West Investment Group, Inc. as an advisor on the process. CombiMatrix said it may consider and acquisition of a company or technology, or help "another entity enhance its offering by leveraging our expertise and infrastructure." CombiMatrix closed at $3.31 on Thursday, down 3.5%.

:

Allergan plc

announced Thursday, that it has acquired clinical-stage biotechnology company, Topokine Therapeutics for an upfront payment of $85 million. There will also be success-based development and sales milestones for XAF5, a treatment for steatoblepharon, or undereye bags. Allergan closed at $227.49 on Thursday, down $0.45.