X0306 4 2014-08-11 0 0000899460 MANNKIND CORP MNKD 0001297976 Thomson David 28903 NORTH AVENUE PAINE VALENCIA CA 91355 0 1 0 0 VP & General Counsel Common Stock, $0.01 Par Value 2014-08-11 4 A 0 220000 0.00 A 434268 D Common Stock, $0.01 Par Value 2014-08-11 4 F 0 114796 8.53 D 319472 D Common Stock, $0.01 Par Value 2014-08-21 4 A 0 9700 0.00 A 329172 D Common Stock, $0.01 Par Value 2014-08-22 4 F 0 1175 7.09 D 327997 D Employee Stock Option (right to buy) 1.69 2014-08-11 4 A 0 60000 0.00 A 2014-08-11 2022-05-17 Common Stock, $.01 Par Value 60000 140000 D Employee Stock Option (right to buy) 6.85 2014-08-11 4 A 0 180000 0.00 A 2014-08-11 2023-05-23 Common Stock, $.01 Par Value 180000 360000 D Employee Stock Option (right to buy) 7.09 2014-08-21 4 A 0 43400 0.00 A 2015-08-21 2024-08-20 Common Stock, $.01 Par Value 43400 43400 D The reporting person was granted multiple restricted stock units that vest upon the achievement of certain defined performance milestones. On August 11, 2014, one of the defined performance milestones was met, resulting in the partial vesting of the restricted stock units. Shares withheld to satisfy the tax liability to the vesting of a restricted stock unit award. Acquired pursuant to a Restricted Stock Unit Award: 25% vest on each year annivesary of the vesting determination date and 25% each anniversary thereafter; shares shall fully vest on the fourth year anniversary of the vesting determination date. On May 17, 2012, the reporting person was granted an option that vests upon the achievement of certain defined performance milestones. On August 11, 2014, one of the defined performance milestones was met, resulting in the partial vesting of the option. On May 23, 2013, the reporting person was granted an option that vests upon the achievement of certain defined performance milestones. On August 11, 2014, one of the defined performance milestones was met, resulting in the partial vesting of the option 25% vesting on the anniversary of the vesting determination date and 1/48th per month thereafter; being fully vested on the fourth anniversary of the vesting determination date. /s/ David Thomson 2014-08-22