Iowa Code § 491.68
Every director, officer, or agent of any corporation or joint-stock association, who knowingly concurs in making, publishing, or posting, either generally or privately to the stockholders or other persons, any written report, exhibit, or statement of its affairs or pecuniary condition, or book or notice containing any material statement which is false, or any untrue or willfully or fraudulently exaggerated report, prospectus, account, statement of operations, values, business, profits, expenditures, or prospects, or any other paper or document intended to produce or give, or having a tendency to produce or give, the shares of stock in such corporation a greater value or a less apparent or market value than they really possess, is guilty of a fraudulent practice.
Iowa Code § 491.68
Fraudulent practices, see §714.8 - 714.14