MNKD 2018 Proxy Statement

ANNUAL REPORT A COPY OF OUR ANNUAL REPORT ON FORM 10-K FOR THE FISCAL YEAR ENDED DECEMBER 31, 2017, FILED WITH THE SEC ON FEBRUARY 27, 2018, IS AVAILABLE WITHOUT CHARGE UPON WRITTEN REQUEST TO: MANNKIND CORPORATION, INVESTOR RELATIONS, 30930 RUSSELL RANCH ROAD, SUITE 301, WESTLAKE VILLAGE, CALIFORNIA 91362. OTHER MATTERS The Board of Directors knows of no other matters that will be presented for consideration at the Annual Meeting. If any other matters are properly brought before the Annual Meeting, it is the intention of the persons named in the accompanying proxy to vote on such matters in accordance with their best judgment. By Order of the Board of Directors David Thomson Corporate Vice President, General Counsel and Secretary Westlake Village, California March 29, 2018 73