AUCTION PURCHASES.Where the Secretary determines that the purposes of this Act are best met through auction purchases of troubled assets, and only where such purchases per financial institution, in the aggregate exceed $300,000,000 (including direct purchases), the Secretary shall prohibit, for such financial institution, any new employment contract with a senior executive officer that provides a golden parachute in the event of an involuntary termination, bankruptcy filing, insolvency, or receivership. The Secretary shall issue guidance to carry out this paragraph not later than 2 months after the date of enactment of this Act, and such guidance shall be effective upon issuance.