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MannKind Shares Climb Following United Therapeutics Collaboration Announcement

MannKind Corporation experienced a significant increase in its stock value today after revealing a new partnership. The biopharmaceutical firm is joining forces with United Therapeutics to advance a lung disease treatment.

5/8/2026, 9:31:58 AM

Shares of MannKind Corporation saw a notable uptick in trading on Tuesday, following the announcement of a strategic alliance with United Therapeutics Corporation. This collaboration centers on the development and commercialization of a treprostinil technosphere product, an inhaled therapy aimed at treating pulmonary hypertension. According to an Investing.com report, the market reacted positively to the news, pushing MannKind's stock price considerably higher. The agreement grants United Therapeutics exclusive global rights to this particular inhaled formulation. MannKind, in turn, will receive an upfront payment of $150 million as part of the deal's initial terms. Beyond the immediate cash infusion, the financial structure of the partnership includes potential future milestone payments to MannKind, which could amount to as much as $1.025 billion. These payments are contingent upon the achievement of specific regulatory and sales benchmarks. Furthermore, MannKind is set to receive tiered royalties on net sales of the product, should it successfully reach the market. The treprostinil technosphere product utilizes MannKind's proprietary Afrezza inhalation technology, which is already employed in its approved Afrezza insulin. This technology facilitates the delivery of therapeutic agents directly into the lungs. The collaboration represents a significant step for both companies in addressing pulmonary hypertension, a severe and progressive lung disease. United Therapeutics has a strong existing presence in the treatment of this condition, making them a well-suited partner for bringing this new inhaled option to patients. The therapeutic area of pulmonary hypertension continues to seek innovative delivery methods for critical medications. Executives from both organizations have expressed optimism regarding the potential of this partnership to benefit patients and create value for shareholders. The initial market response suggests investors share this positive outlook, evidenced by the upward movement in MannKind's stock value throughout the day.

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