Indiana Code Title 6. Taxation § 6-3.1-13-8

(1) An individual stockholder, or a member of the stockholder's family enumerated in Section 318 of the Internal Revenue Code,   1 if the stockholder and the member of the stockholder's family own directly, indirectly, beneficially, or constructively, in the aggregate, at least fifty percent (50%) of the value of the taxpayer's outstanding stock.

(2) A stockholder, or a stockholder's partnership, estate, trust, or corporation, if the stockholder and the stockholder's partnership, estate, trust, or corporation owns directly, indirectly, beneficially, or constructively, in the aggregate, at least fifty percent (50%) of the value of the taxpayer's outstanding stock.

(3) A corporation, or a party related to the corporation in a manner that would require an attribution of stock from the corporation to the party or from the party to the corporation under the attribution rules of Section 318 of the Internal Revenue Code, if the taxpayer owns directly, indirectly, beneficially, or constructively at least fifty percent (50%) of the value of the corporation's outstanding stock.

(4) A component member (as defined in Section 1563(b) of the Internal Revenue Code)  2.

(5) A person to or from whom there is attribution of stock ownership in accordance with Section 1563(e) of the Internal Revenue Code except, for purposes of determining whether a person is a related member under this subdivision, twenty percent (20%) shall be substituted for five percent (5%) wherever five percent (5%) appears in Section 1563(e) of the Internal Revenue Code.