Madison Dearborn Partners to exit Ikaria in $2.3 bln deal

Mallinckrodt plc said Thursday that it has agreed to buy Ikaria Inc. in a deal valued at $2.3 billion. Madison Dearborn Partners, which acquired a majority of Ikaria in January 2014, and New Mountain Capital are selling. Hampton, New Jersey-based Ikaria is a critical care company. Goldman Sachs advised Mallinckrodt.

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