Wis. Stat. § 611.15: Deposit of proceeds of subscriptions.

All funds, and the securities and documents representing interests in property, received by a stock corporation for stock subscriptions or by a mutual for applications for insurance policies or for mutual bond or contribution note subscriptions shall be deposited in the name of the corporation with a depository approved by the commissioner, subject to an escrow agreement approved by the commissioner under which withdrawals may be made only with the commissioner’s approval.