X0407 4 2023-05-25 0 0000899460 MANNKIND CORP MNKD 0001589641 Tross Stuart A 1 CASPER STREET DANBURY CT 06810 0 1 0 0 Chief People & Workpl Officer 0 Common Stock, $.01 Par Value 2023-05-25 4 A 0 92000 0.00 A 1024752 D Performance Restricted Stock Unit 2023-05-25 4 A 0 113000 0.00 A Common Stock, $.01 Par Value 113000 113000 D Each restricted stock unit represents a contingent right to receive one share of MNKD common stock. Acquired pursuant to a Restricted Stock Unit Award: 25% vests on July 15, 2024 and each yearly anniversary thereof until fully vested. The performance-based restricted stock unit will vest on July 15, 2026, provided that the closing price of MannKind common stock on the Nasdaq Global Market on June 30, 2026 is not less than the closing sale price on July 1, 2023. The number of shares delivered on the vesting date, as a percentage of the target specified in Table II Box 5 above, is determined by the percentile ranking of MannKind total shareholder return (TSR) over the period from July 1, 2023 until June 30, 2026 relative to the TSR of the Russell 3000 Pharmaceutical & Biotechnology Index over the same three-year period, as follows: less than 25th percentile=0% of target, 25th percentile=50% of target, 50th percentile=100% of target, 75th percentile=200% percent of target, 90th percentile or higher=300% maximum. Payout values will be interpolated between the percentile rankings above. /s/ Stuart Tross 2023-05-26