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.

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. Stock Options may be exercised, in whole or in part, by giving written notice of exercise to the Company specifying the number of shares of Stock subject to the Stock Option to be purchased.

Method of Exercise. Subject to the provisions of this [Section 5], Stock Appreciation Rights may be exercised, in whole or in part, by giving written notice of exercise to the Company specifying the number of shares with respect to which the Stock Appreciation Right is being exercised.

Method of Exercise. The Options shall be exercisable by a written notice which shall:

cash or a personal, certified or bank check or postal money order payable to the order of the Company for an amount equal to the exercise price of the shares being purchased; or

Method of Exercise. An option shall be exercised by written notice to the Corporation by the optionee (or successor in the event of death) and execution by the optionee of an exercise representation letter in the form set forth on Exhibit “B,” as such Exhibit may be amended by the Committee from time to time. Such written notice shall state the number of shares with respect to which the option is being exercised and designate a time, during normal business hours of the Corporation, for the delivery thereof (“Exercise Date”), which time shall be at least 30 days after the giving of such notice unless an earlier date shall have been mutually agreed upon. At the time specified in the written notice, the Corporation shall deliver to the optionee at the principal office of the Corporation, or such other appropriate place as may be determined by the Committee, a certificate or certificates for such shares. Notwithstanding the foregoing, the Corporation may postpone delivery of any certificate or certificates after notice of exercise for such reasonable period as may be required to comply with any applicable listing requirements of any securities exchange. In the event an option shall be exercisable by any person other than the optionee, the required notice under this Section shall be accompanied by appropriate proof of the right of such person to exercise the option.

This Stock Option, to the extent it is then vested and exercisable, may be exercised through a broker designated by the Company or by any other method the Committee has approved; provided, however, that no such exercise shall be with respect to fewer than twenty-five (25) Shares or the remaining Shares covered by the Stock Option if less than twenty-five. The exercise must be accompanied by the payment of the full Grant Price of such Shares and any Tax-Related Items withholding. Payment may be in cash or Shares or a combination thereof to the extent permissible under Applicable Law, or through a broker-assisted cashless exercise; provided, however, that any payment in Shares shall be in strict compliance with all procedural rules established by the Committee.

Method of Exercise. This Option is exercisable by delivery of an exercise notice, in the form attached as [Exhibit A] (the "Exercise Notice", which shall state the election to exercise the Option, the number of Shares in respect of which the Option is being exercised (the "Exercised Shares"), and such other representations and agreements as may be required by the ​ pursuant to the provisions of the Plan. The Exercise Notice shall be completed by the Grantee and delivered to the Stock Option Administrator. The Exercise Notice shall be accompanied by payment of the aggregate Exercise Price as to all Exercised Shares. This Option shall be deemed to be exercised upon receipt by the ​ of such fully executed Exercise Notice accompanied by such aggregate Exercise Price.

Method of Exercise. Holder may at any time and from time to time exercise this Warrant, in whole or in part, by delivering to the Company the original of this Warrant together with # a duly executed Notice of Exercise in substantially the form attached hereto as [Appendix 1], # a duly executed counterpart signature page to the Amended and Restated Voting Agreement dated ​ (as such may be amended from time to time, the “Voting Agreement”) pursuant to which Holder agrees to join as a party to the Voting Agreement as a “Founder” thereunder and # unless Holder is exercising this Warrant pursuant to a cashless exercise set forth in [Section 1.2], a check, wire transfer of same-day funds (to an account designated by the Company), or other form of payment acceptable to the Company for the aggregate Warrant Price for the Shares being purchased.