§12A-9-309.

§12A-9-309.
   
   Protection of Purchasers of Instruments, Documents, and Securities.
   
   Nothing in this article limits the rights of a holder in due course of
   a negotiable instrument (Section 3-302 of this title) or a holder to
   whom a negotiable document of title has been duly negotiated (Section
   7-501 of this title) or a protected purchaser of a security (Section
   8-303 of this title) and such holders or purchasers take priority over
   an earlier security interest even though perfected. Filing under this
   article does not constitute notice of the security interest to such
   holders or purchasers.