Impac Mortgage Holdings Inc. has filed a shelf prospectus for the sale of up to $200 million of a number of its securities.

The filing covers the sale of common stock, preferred stock, warrants, units and debt securities.

The company's common shares registration also included the right to purchase series A-1 junior participating preferred stock.

The securities may be offered on a continuous or delayed basis from time to time directly or through underwriters, dealers or agents, in one or more public or private transactions or through other means.

The Irvine, Calif.-based company intends to use the net proceeds for general corporate purposes.