On June 5, 2020, we issued and sold to certain institutional investors in a registered direct offering an aggregate of 7.9 million shares of our common stock at a purchase price of $1.05 per share. The offering of the shares was made pursuant to our effective shelf registration statement on Form S-3 previously filed with the Securities and Exchange Commission. We received proceeds of approximately $7.6 million from the issuance and sale of our common stock after deducting related offering fees and expenses.