MNKD 2018 Proxy Statement

shares of common stock reserved for issuance under the Amended Purchase Plan have been issued under the terms of the Amended Purchase Plan. Our Board of Directors or the Compensation Committee may amend the Amended Purchase Plan at any time. Any amendment of the Amended Purchase Plan must be approved by the stockholders within 12 months of its adoption by the Board of Directors or the Compensation Committee if the amendment would (i) increase the number of shares of common stock reserved for issuance under the Amended Purchase Plan, (ii) modify the requirements relating to eligibility for participation in the Amended Purchase Plan (to the extent such modification requires stockholder approval in order for the Amended Purchase Plan to obtain employee stock purchase plan treatment under Section 423 of the Code or to comply with the requirements of Rule 16b-3 promulgated under the Exchange Act, or “Rule 16b-3”); or (iii) modify the Amended Purchase Plan in any other way if such modification requires stockholder approval in order for the Amended Purchase Plan to obtain employee stock purchase plan treatment under Section 423 of the Code or to comply with the requirements of Rule 16b-3. Purchase rights granted before amendment or termination of the Amended Purchase Plan will not be altered or impaired by any amendment or termination of the Amended Purchase Plan without consent of the employee to whom such rights were granted. U.S. Federal Income Tax Information Purchase rights granted under the Amended Purchase Plan are intended to qualify for favorable federal income tax treatment associated with rights granted under an employee stock purchase plan which qualifies under provisions of Section 423 of the Code. A participant will be taxed on amounts withheld for the purchase of shares of common stock as if such amounts were actually received. Otherwise, no income will be taxable to a participant until disposition of the acquired shares, and the method of taxation will depend upon the holding period of the acquired shares. If the stock is disposed of more than two years after the beginning of the offering period and more than one year after the stock is transferred to the participant, then the lesser of (i) the excess of the fair market value of the stock at the time of such disposition over the purchase price or (ii) the excess of the fair market value of the stock as of the beginning of the offering period over the purchase price (determined as of the beginning of the offering period) will be treated as ordinary income. Any further gain or any loss will be taxed as a long-term capital gain or loss. At present, such capital gains generally are subject to lower tax rates than ordinary income. If the stock is sold or disposed of before the expiration of either of the holding periods described above, then the excess of the fair market value of the stock on the purchase date over the purchase price will be treated as ordinary income at the time of such disposition. The balance of any gain will be treated as capital gain. Even if the stock is later disposed of for less than its fair market value on the exercise date, the same amount of ordinary income is attributed to the participant, and a capital loss is recognized equal to the difference between the sales price and the fair market value of the stock on such purchase date. Any capital gain or loss will be short-term or long-term, depending on how long the stock has been held. There are no federal income tax consequences to MannKind by reason of the grant or exercise of purchase rights under the Purchase Plan. MannKind is entitled to a deduction to the extent amounts are taxed as ordinary income to a participant (subject to the requirement of reasonableness and the satisfaction of tax reporting obligations). New Plan Benefits Participation in the Amended Purchase Plan is voluntary and each eligible employee will make his or her own decision whether and to what extent to participate in the plan. It is therefore not possible to determine the benefits or amounts that will be received in the future by individual employees or groups of employees under the Amended Purchase Plan. 35