Restrictions on Option Exercise. Subject to [Section 3(c)] (Special Procedure for Exercising Options After Termination of Service) and [Section 4(f)] (Termination), the Insider hereby agrees to comply with the following limitations on his ability to exercise all Options he owns:

No Obligation to Exercise Option. The granting of an Option shall impose no obligation on the Participant to exercise such Option.

Payment of Option Exercise Price. The payment of the Exercise Price of an Option granted under this Section 2 shall be subject to the following:

Method of Exercise of Option. The vested portion of the Option may be exercised only during the term of the Option by delivery of a notice of exercise in such form as may designated by the Committee from time to time. The notice must state the number of shares being exercised and include payment in full of the purchase price and all required tax withholding (if applicable). Payment of the purchase price and any applicable tax-related items shall be made # in cash, # by delivery of unencumbered shares of Common Stock previously acquired having a Fair Market Value equal to the exercise price and tax-related items, # by a combination of cash and shares under [(i) and (ii) above]; # by withholding of shares of Common Stock that would otherwise be issued upon such exercise having a Fair Market Value on the date of exercise equal to the exercise price and tax-related items or # by a cashless (broker-assisted) exercise that complies with all applicable laws.

Method of Exercise of Option. Subject to the terms and conditions of this Agreement, the Option may be exercised only within the Option period by serving written notice of exercise on ​ at its principal office which is as of this date located at 1400 W. 94th Street, Bloomington, Minnesota, Attention: General Counsel, or such other forms of written or electronic notice as are designated by the Company. The notice must state the number of shares being exercised and include payment in full of the purchase price. Payment of the purchase price shall be made in cash or, with the approval of ​ (which may be given in its sole discretion), in shares of Common Stock of ​ having a Fair Market Value equal to the full purchase price of the shares of Common Stock being acquired or a combination of cash and such shares of Common Stock.

Taxation Upon Exercise of Option. Pursuant to Section 9 of the Plan, the Company may require the Optionee to pay to the Company amounts necessary to satisfy any applicable Company withholding obligations. The Optionee shall satisfy Optionee’s tax withholding obligation arising upon the exercise of this Option by one or some combination of the following methods: # by cash payment, or # out of Optionee’s current compensation, or # if permitted by the Board or Committee, in its discretion, by surrendering to the Company already-owned Shares or by directing the Company to withhold shares otherwise to be transferred to the Optionee, in each case in accordance with [Section 9(b)] of the Plan. For this purpose, the Fair Market Value of the Shares to be withheld shall be determined on the date that the amount of tax to be withheld is to be determined (the “Tax Date”).

Exercise of Nonstatutory Stock Option. There may be a regular federal income tax liability and a state income tax liability upon the exercise of this Option. The Optionee will be treated as having received compensation income (taxable at ordinary income tax rates) equal to the excess, if any, of the fair market value of the Shares on the date of exercise over the Exercise Price and the Company will qualify for a deduction in the same amount. The Company will be required to withhold from Optionee’s compensation or collect from Optionee and pay to the applicable taxing authorities an amount equal to a percentage of this compensation income at the time of exercise.

Exercise Price; No Option Repricing. The Committee shall establish the exercise price of Options. The exercise price of an Option shall be not less than 100% of the Fair Market Value of such shares on the Date of Grant, provided that if the Participant is a 10% Shareholder, the exercise price of an Incentive Stock Option shall not be less than 110% of the Fair Market Value of such shares on the Date of Grant. Notwithstanding any provision of the Plan to the contrary, neither the Committee nor the Board shall have the right or authority to amend or modify the exercise price of any outstanding Option, or to cancel an outstanding Option, at a time when the exercise price of the Option is greater than the Fair Market Value of a share of Company Stock in exchange for cash,

Exercise. Tenant shall exercise an Extension Option, if at all, by giving Landlord unconditional, irrevocable written notice of such election not earlier than 450 days and not later than 360 days prior to the Expiration Date (as the same may have been extended), the time of such exercise being of the essence (the “Exercise Period”). Subject to the provisions of this Paragraph 3.3, upon the giving of such notice, this Lease and the Term shall be extended without execution or delivery of any other or further documents, with the same force and effect as if the applicable Extension Term had originally been included in the Term.

Exercise. Each Option shall become and be exercisable at such time or times and during such period or periods, in full or in such installments as may be determined by the Board at the Option Date. In addition, if permitted by the Board or the terms of the Option Grant Certificate evidencing such Stock Option, Participants may elect to pay the purchase price of shares of Stock purchased upon the exercise of Incentive Stock Options in cash or through delivery at the time of such exercise of shares of Stock (valued at Fair Market Value as of the date of exercise) already owned by the Participant, or any combination thereof, equivalent to the purchase price of such Incentive Stock Options. A Participant’s payment of the purchase price in connection with the exercise of an Incentive Stock Option through delivery of share of Stock (“ISO Stock”) that were acquired through the exercise of an Incentive Stock Option and that have not been held for more than one year will be considered a disposition (within the meaning of Code Section 422(c)) of ISO Stock, resulting in the disqualification of the ISO Stock from treatment as an Incentive Stock Option under Code Section 422, and the Participant’s recognition of ordinary income. Participants should consult with their tax advisors prior to electing to exercise an Incentive Stock Option by this method.