According to the Plaintiff's law firm press release, Mallinckrodt, together with its subsidiaries, develops, manufactures, markets, and distributes specialty pharmaceutical products and therapies in the United States, Europe, the Middle East, Africa, and internationally. It operates in two segments, Specialty Brands, and Specialty Generics and Amitiza. The Company markets its branded products to physicians, pharmacists, pharmacy buyers, hospital procurement departments, ambulatory surgical centers, and specialty pharmacies.

Among other products, Mallinckrodt's portfolio includes H.P. Acthar Gel ("Acthar"), an injectable drug for various indications, such as rheumatoid arthritis, multiple sclerosis, infantile spasms, systemic lupus erythematosus, polymyositis, and others. During the Class Period, Acthar was in a Phase 2B study designed to assess its efficacy and safety as an investigational treatment for amyotrophic lateral sclerosis ("ALS").

The Complaint alleges that throughout the Class Period, Defendants made materially false and misleading statements regarding the Company's business, operational and compliance policies. Specifically, the Complaint alleges Defendants made false and/or misleading statements and/or failed to disclose that: (i) Acthar posed significant safety concerns that rendered it a non-viable treatment for ALS; (ii) accordingly, Mallinckrodt overstated the viability of Acthar as an ALS treatment; and (iii) as a result, the Company's public statements were materially false and misleading at all relevant times.

Plaintiff re-filed the Complaint on July 29, 2019.