N.M. Stat. § 59A-36-2
Every person who is directly or indirectly the beneficial owner of more than ten percent of any class of any equity security of a domestic stock insurer, or who is a director or an officer of such insurer, shall file with the superintendent within ten (10) days after he becomes such beneficial owner, director or officer a statement, in such form as the superintendent may prescribe, of the amount of all equity securities of such insurer of which he is the beneficial owner; and within ten (10) days after the close of each calendar month thereafter, if there has been a change in such ownership during such month, shall file with the superintendent a statement, in such form as the superintendent may prescribe, indicating his ownership at the close of the calendar month and such changes in his ownership as have occurred during such calendar month.
NMS § 59A-36-2