MannKind's stock plummets 48% since last October's "Buy" rating; United Therapeutics' pivot creates uncertainty.
ByAinvest
Wednesday, Mar 18, 2026 7:34 am ET1min read
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MannKind's stock has declined 48% since October 2021, due to uncertainty following United Therapeutics' pivot to seek approval for its own inhaled insulin product. This move could impact MannKind's future prospects and partnerships. The biopharma is in a challenging situation, with a key partner potentially becoming a competitor.

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