ViewRay Inc. is looking to raise $150 million via an underwritten public offering of common shares.

The company will offer 16,216,217 shares at $9.25 apiece and has granted the underwriters an option to buy up to an additional 2,432,432 shares.

ViewRay intends to use the net proceeds for working capital and general corporate purposes, including capital expenditures, research and development expenses, commercial expenses, clinical data generation costs and infrastructure expenses.

The offering is expected to close Aug. 17, subject to customary closing conditions.

Morgan Stanley and Jefferies are acting as the joint book-running managers for the offering. Guggenheim Securities is also acting as a book-running manager for the offering.

Cantor, Mizuho Securities, Northland Capital Markets and B. Riley FBR are acting as co-managers for the offering.

ViewRay is a maker of radiation therapy systems based in Ohio.