California Code, Civil Code - CIV § 4190

(a) “Stock cooperative” means a development in which a corporation is formed or availed of, primarily for the purpose of holding title to, either in fee simple or for a term of years, improved real property, and all or substantially all of the shareholders of the corporation receive a right of exclusive occupancy in a portion of the real property, title to which is held by the corporation. The owners' interest in the corporation, whether evidenced by a share of stock, a certificate of membership, or otherwise, shall be deemed to be an interest in a common interest development and a real estate development for purposes of subdivision (f) of Section 25100 of the Corporations Code.

(b) A “stock cooperative” includes a limited equity housing cooperative which is a stock cooperative that meets the criteria of Section 817.