On November 4, 2016, the Company issued warrants to T Squared to purchase up to 250,000 shares of Common Stock at an initial exercise price of $14.00 per share. The warrants contain a down round provision and on October 21, 2019, as a result of the Company’s sale of Common Stock through an underwritten public offering, the exercise price of the warrants was reduced to $0.78 per share. The warrants were not exercised and expired on January 31, 2020.