The following shares were excluded from the calculation of weighted average dilutive common shares because their inclusion would have been anti-dilutive:

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[1] Includes shares underlying warrants that are exercisable into an aggregate of (i) 368,711 shares of common stock and (ii) five-year warrants to purchase 368,711 shares of common stock at an exercise price of $5.50 per share.

[2] Excludes shares issuable upon conversion of the Senior and Junior Notes, which were not convertible as of June 30, 2020 and whose conversion price was not known as of such date. Subsequent to June 30, 2020, an aggregate of 1,555,314 shares of common stock and warrants to purchase 1,461,091 shares of common stock were issued as a result of the conversion of convertible notes outstanding as of June 30, 2020.