The Company issued several notes in prior periods and converted them resulting in the issuance of warrants. The following table summarizes information about the Company’s warrants at December 31, 2017:

As of September 30, 2016, the Company had 590,146 common stock warrants outstanding with weighted average exercise price, weighted average remaining contractual term and intrinsic value of $4.14, 1.73 years and $4,307,493, respectively. On December 27, 2016, ICG and the Company agreed to amend and exchange the common stock warrants for warrants to purchase shares of Series B Convertible Preferred Stock, and the number of warrants held adjusted by an exchange ratio of 5:1 shares of common stock for shares of Series B Convertible Preferred Stock. ICG, the holder of the warrants outstanding, is not permitted to sell, transfer, assign, hypothecate, pledge, margin, hedge, trade or otherwise obtain or attempt to obtain any economic value from the shares of Series B Convertible Preferred Stock should the warrants be exercised prior to December 31, 2021.

Warrants for 10,914 and 12,383 shares of Series B Convertible Preferred Stock expired on September 10, 2017 and December 11, 2017, respectively. On January 16, 2018, the Company agreed to extend the expiration date on all warrants outstanding if not exercised prior to expiration date by an additional two years, including the September 10, 2017 and December 11, 2017 expired warrants. Warrants outstanding and exercisable as of December 31, 2017 and September 30, 2017 reflect the additional extension of time by two years for the 10,914 and 12,383 warrants previously expired.

The exercise price for the Series B Convertible Preferred Stock warrants outstanding and exercisable at December 31, 2017 is as follows: