On August 21, 2026, MannKind Corporation filed a prospectus supplement with the SEC under its previously established automatic shelf registration on Form S-3, setting up to issue and sell shares of common stock. The 8-K itself is largely routine paperwork — its main purpose is to attach a legal opinion from the law firm Cooley LLP confirming that the shares being offered are legally valid. The filing doesn't say how many shares are involved, at what price, or what the proceeds would be used for, so those details remain unclear.
View Full Filing (SEC EDGAR)