MannKind (MNKD) Secures $500M Financing to Advance Inhaled Therapies Pipeline

We recently published 12 Best Healthcare Stocks to Buy Under $30. MannKind Corporation (NASDAQ:MNKD) is one of the best healthcare stocks.

MannKind Corporation (NASDAQ:MNKD)’s most recent milestone is its push to expand the use of its rapid-acting inhaled insulin, Afrezza, to pediatric patients. In August 2025, the company submitted a supplemental Biologics License Application to the FDA for use in children ages 4–17, supported by positive Phase 3 INHALE-1 trial results presented at major diabetes conferences. A regulatory decision is expected in Q4 2025. Clinical data from both pediatric (INHALE-1) and adult (INHALE-3) studies have reinforced Afrezza’s efficacy and safety across age groups. These advances have also helped the business gain attention among investors looking at the best healthcare stocks.

Beyond Afrezza, MannKind Corporation (NASDAQ:MNKD) is advancing its pipeline in respiratory and rare diseases. MNKD-101, an inhaled clofazimine for nontuberculous mycobacterial lung disease, is progressing ahead of schedule in its global Phase 3 ICoN-1 trial. MNKD-201, a therapy for idiopathic pulmonary fibrosis, is set to enter Phase 2 testing by the end of 2025.

To support these initiatives, the business secured up to $500 million in non-dilutive financing from Blackstone in August 2025. This funding will accelerate the potential launch of pediatric Afrezza, expand its commercial capabilities, and advance its clinical programs. Together, these developments position MannKind Corporation (NASDAQ:MNKD) for growth in both diabetes care and specialty lung disease markets.

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