Digimarc (DMRC) has filed a shelf registration statement with US regulators for the potential sale of up to $50 million in securities to be offered from time to time, the company said in a regulatory filing on Tuesday.

The filing covers common stock, preferred stock, warrants and debt securities, the company said.

The company said the net proceeds will be used for working capital and general corporate purposes, including capital expenditures, acquisitions and share repurchases.