Example 1. H, an individual, owns all of the stock of corporation A. Corporation A is not considered to own the stock owned by H in corporation A.

Example 2. H, an individual, his wife, W, and his son, S, each own one-third of the stock of the Green Corporation. For purposes of determining the amount of stock owned by H, W, or S for purposes of section 318(a)(2)(C) and (3)(C), the amount of stock held by the other members of the family shall be added pursuant to paragraph (b)(3) of §1.318-1 in applying the 50-percent requirement of such section. H, W, or S, as the case may be, is for this purpose deemed to own 100 percent of the stock of the Green Corporation.

Example. An individual, H, his wife, W, his son, S, and his grandson (S's son), G, own the 100 outstanding shares of stock of a corporation, each owning 25 shares. H, W, and S are each considered as owning 100 shares. G is considered as owning only 50 shares, that is, his own and his father's.

Example 1. A, an individual, has a 50 percent interest in a partnership. The partnership owns 50 of the 100 outstanding shares of stock of a corporation, the remaining 50 shares being owned by A. The partnership is considered as owning 100 shares. A is considered as owning 75 shares.

Example 2. A testamentary trust owns 25 of the outstanding 100 shares of stock of a corporation. A, an individual, who holds a vested remainder in the trust having a value, computed actuarially equal to 4 percent of the value of the trust property, owns the remaining 75 shares. Since the interest of A in the trust is a vested interest rather than a contingent interest (whether or not remote), the trust is considered as owning 100 shares. A is considered as owning 76 shares.

Example 3. The facts are the same as in (2), above, except that A's interest in the trust is a contingent remainder. A is considered as owning 76 shares. However, since A's interest in the trust is a remote contingent interest, the trust is not considered as owning any of the shares owned by A.

Example 4. A and B, unrelated individuals, own 70 percent and 30 percent, respectively, in value of the stock of Corporation M. Corporation M owns 50 of the 100 outstanding shares of stock of Corporation O, the remaining 50 shares being owned by A. Corporation M is considered as owning 100 shares of Corporation O, and A is considered as owning 85 shares.

Example 5. A and B, unrelated individuals, own 70 percent and 30 percent, respectively, of the stock of corporation M. A, B, and corporation M all own stock of corporation O. Since B owns less than 50 percent in value of the stock of corporation M, neither B nor corporation M constructively owns the stock of corporation O owned by the other. However, for purposes of certain sections of the Code, such as sections 304 and 856(d), the 50-percent limitation of section 318(a)(2)(C) and (3)(C) is disregarded or is reduced to less than 30 percent. For such purposes, B constructively owns his proportionate share of the stock of corporation O owned directly by corporation M, and corporation M constructively owns the stock of corporation O owned by B.