Okla. Stat. tit. 12A, § 12A-8-206: Completion or Alteration of Security Certificate

Completion or Alteration of Security Certificate.

(a) If a security certificate contains the signatures necessary

to its issue or transfer but is incomplete in any other respect:

(1) any person may complete it by filling in the blanks as

authorized; and

(2) even if the blanks are incorrectly filled in, the

security certificate as completed is enforceable by a

purchaser who took it for value and without notice of

the incorrectness.

(b) A complete security certificate that has been improperly

altered, even if fraudulently, remains enforceable, but only

according to its original terms.