If any material change occurs in the facts set forth in any ownership information statement filed pursuant to s. DFI-Sec 22.01 or 22.02, the person who filed such statement shall, within 10 days thereafter, file with the division an amendment describing the change and send a signed copy of such amendment to the target company by certified mail not later than the date of the filing. Forms TO-1 and TO-2 shall be used for the filing or sending of amendments to ownership information statements.
Wis. Admin. Code Department of Financial Institutions DFI-Sec 22.03