Integrity for Public Officials Act or the IPO Act This bill prohibits certain senior government officials, including Members of Congress, from engaging in specified transactions. Specifically, the bill prohibits these individuals from (1) purchasing or selling certain investments in securities, commodities, or futures; (2) entering into a transaction that creates a net short position in a security; or (3) serving as an officer or board member of a for-profit association, corporation, or other entity.