Wis. Stat. § 221.1001: Stock book.

Every bank shall keep a stock book. The stock book shall be subject to the inspection of officers, directors and shareholders of the bank during the usual hours for transacting business. The stock book shall show the name, residence and number of shares held by each shareholder. A refusal by the officers of such bank to exhibit the stock book to any person rightfully demanding inspection of the book, may be required to forfeit not more than $50. In all actions, suits and proceedings, the stock book is presumptive evidence of the facts contained in the book.