Mo. Rev. Stat. § 400.8-104: Acquisition of security or financial asset or interest therein.

(a) A person acquires a security or an interest therein, under this article, if:

(1) The person is a purchaser to whom a security is delivered pursuant to section 400.8-301; or

(2) The person acquires a security entitlement to the security pursuant to section 400.8-501.

(b) A person acquires a financial asset, other than a security, or an interest therein, under this article, if the person acquires a security entitlement to the financial asset.

(c) A person who acquires a security entitlement to a security or other financial asset has the rights specified in sections 400.8-501 to 400.8-510, but is a purchaser of any security, security entitlement or other financial asset held by the securities intermediary only to the extent provided in section 400.8-503.

(d) Unless the context shows that a different meaning is intended, a person who is required by other law, regulation, rule or agreement to transfer, deliver, present, surrender, exchange or otherwise put in the possession of another person a security or financial asset satisfies that requirement by causing the other person to acquire an interest in the security or financial asset pursuant to subsection (a) or (b).