 DUBLIN , Aug. 3, 2022 PRNewswire -- Mallinckrodt plc OTCMKTS: MNKPF, a global specialty pharmaceutical company, announced today that it will report second quarter 2022 earnings results for the period ended July 1, 2022, on Thursday, August. 11, 2022. A conference call for investors will begin at 8:30 a.m. 