(a) In a case not covered by the priority rules in Article 9¹ or the rules stated in subsection (c), an action based on an adverse claim to a financial asset or security entitlement, whether framed in conversion, replevin, constructive trust, equitable lien, or other theory, may not be asserted against a person who purchases a security entitlement, or an interest therein, from an entitlement holder if the purchaser gave value, does not have notice of the adverse claim, and obtains control.

(b) If an adverse claim could not have been asserted against an entitlement holder under Section 8-502 of this title, the adverse claim cannot be asserted against a person who purchases a security entitlement, or an interest therein, from the entitlement holder.

(c) In a case not covered by the priority rules in Article 9 of this code, a purchaser for value of a security entitlement, or an interest therein, who obtains control has priority over a purchaser of a security entitlement, or an interest therein, who does not obtain control. Except as otherwise provided in subsection (d) of this section, purchasers who have control rank according to priority in time of:

(d) A securities intermediary as purchaser has priority over a conflicting purchaser who has control unless otherwise agreed by the securities intermediary.