Mont. Code § 32-1-472
Any officer or employee of any bank who intentionally conceals from the directors of such corporation, or committee thereof where the directors have delegated authority to a committee to pass on loans and discounts, any discount or loan made by and in behalf of the corporation or from its assets between the regular meetings of its board of directors or committee, the purchase of any security, the sale of any of its securities, or any guarantee, repurchase agreement, or any other agreement whereby the corporation is obligated, during the same period, is guilty of a misdemeanor and on conviction must be imprisoned in the county jail for not more than 12 months for each offense and may also be fined not more than $500, at the discretion of the court.
§ 32-1-472, MCA