Description of Business

12 Months Ended

Dec. 31, 2023

Accounting Policies [Abstract]

Description of Business

1. Description of Business

Business — MannKind Corporation and its subsidiaries (the “Company”) is a biopharmaceutical company focused on the development and commercialization of innovative therapeutic products and devices to address serious unmet medical needs for those living with endocrine and orphan lung diseases. The Company’s signature technologies, Technosphere dry-powder formulations and Dreamboat inhalation devices, offer rapid and convenient delivery of medicines to the deep lung where they can exert an effect locally or enter the systemic circulation. The Company is currently commercializing Afrezza (insulin human) Inhalation Powder, an ultra rapid-acting inhaled insulin indicated to improve glycemic control in adults with diabetes, and the V-Go wearable insulin delivery device, which provides continuous subcutaneous infusion of insulin in adults that require insulin. The first product to come out of the orphan lung disease pipeline, Tyvaso DPI (treprostinil) inhalation powder received approval from the U.S. Food and Drug Administration (“FDA”) in May 2022 for the treatment of pulmonary arterial hypertension (PAH) and for the treatment of pulmonary hypertension associated with interstitial lung disease (PH-ILD). The Company's development and marketing partner, United Therapeutics ("UT") began commercializing Tyvaso DPI in June 2022 and is obligated to pay the Company a royalty on net sales of the product. The Company also receives a margin on supplies of Tyvaso DPI that it manufactures for UT.

Basis of Presentation — The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”).

Principles of Consolidation — The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. Intercompany balances and transactions have been eliminated.

Reclassifications — Certain amounts reported in prior years have been reclassified to conform with the current year presentation. Changes were made to the consolidated statements of cash flows to present the amortization of debt discount and issuance costs and net investment (accretion) amortization separately from amortization and depreciation expense. Additionally, changes were made to our effective income tax rate reconciliation table in Note 18 – Income Taxes to separate officers compensation from permanent items.

Segment Information — Operating segments are identified as components of an enterprise about which separate discrete financial information is available for evaluation by the chief operating decision-maker in making decisions regarding resource allocation and assessing performance. To date, the Company has viewed its operations and manages its business as one segment operating in the United States of America.