Wis. Stat. § 133.12: Domestic and foreign corporations and limited liability companies; cancellation of charters or certificates of authority for restraining trade; affidavit.

Any corporation or limited liability company organized under the laws of this state or foreign corporation or foreign limited liability company authorized to transact business in this state pursuant to a certificate of authority from the department of financial institutions which violates any provision of this chapter, may, upon proof thereof, in any circuit court have its charter or authority to transact business in this state suspended, canceled or annulled. Every corporation shall, in its annual report filed with the department of financial institutions, show whether it has entered into any contract, combination in the form of trust or otherwise, or conspiracy in restraint of trade or commerce. The department of justice shall enforce this section.