Indiana Code Title 23. Business and Other Associations § 23-1-43-18

Sec. 18. (a) Notwithstanding any other provision of this article (except sections 20 through 24 of this chapter), a resident domestic corporation may not engage in any business combination with any interested shareholder of the resident domestic corporation for a period of five (5) years following the interested shareholder's share acquisition date unless the business combination or the purchase of shares made by the interested shareholder on the interested shareholder's share acquisition date is approved by the board of directors of the resident domestic corporation before the interested shareholder's share acquisition date.

(b) If a good faith proposal regarding a business combination is made in writing to the board of directors of the resident domestic corporation, the board of directors shall respond, in writing, within thirty (30) days or such shorter period, if any, as may be required by the Exchange Act, setting forth its reasons for its decision regarding the proposal.

(c) If a good faith proposal to purchase shares is made in writing to the board of directors of the resident domestic corporation, the board of directors, unless it responds affirmatively in writing within thirty (30) days or such shorter period, if any, as may be required by the Exchange Act, is considered to have disapproved the share purchase.