Cardiovascular Systems, Inc. (Nasdaq: CSII) announced that it has commenced an underwritten public offering of $125 million of shares of common stock. In connection with this offering, CSI expects to grant the underwriters of the offering a 30-day option to purchase up to an additional 15% of the shares of common stock offered in the public offering. All of the shares in the offering will be sold by CSI. The offering is subject to market and other conditions, and there can be no assurance as to whether or when the offering may be completed, or as to the actual size or terms of the offering.

CSI intends to use the net proceeds from the offering for working capital and general corporate purposes, which may include, but not be limited to, expansion of marketing programs, international expansion, new product development, clinical studies and publications, investments, acquisitions, or general working capital needs.

Barclays and SVB Leerink are acting as joint book-running managers for the offering.