Code of Alabama
Part 2 - Issue and Issuer.
Section 7-8-204 - Effect of Issuer's Restriction on Transfer.

A restriction on transfer of a security imposed by the issuer, even if otherwise lawful, is ineffective against a person without knowledge of the restriction unless:
(1) the security is certificated and the restriction is noted conspicuously on the security certificate; or
(2) the security is uncertificated and the registered owner has been notified of the restriction.