NOTE 4 – EARNINGS (LOSS) PER SHARE INFORMATION

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Stock options to purchase 113,659, 465,500, and 2,353,500 shares of common stock were excluded from the computation of diluted earnings per share during the years ended December 31, 2021, 2020 and 2019, respectively, as their effect would have been anti-dilutive. Also excluded from the computation of diluted earnings per share were 114,880  (including 94,270 shares related to the performance stock units further described in Note 13), 2,144,617, and 704,684 shares of unvested restricted stock during the year ended December 31, 2021, 2020 and 2019, respectively, as their effect would have been anti-dilutive. Common warrants to purchase 29,804,300 shares of common stock were excluded from the computation of diluted earnings per share during the year ended December 31, 2020, as their effect would have been anti-dilutive.

Pre-funded warrants to purchase 13,428,500 shares of common stock were included in the calculation of the Basic Weighted-Average Shares Outstanding for the year ended December 31, 2020 as they were exercisable for a nominal amount and so were treated as if they were exercised at issuance. These shares were exercised in January 2021 and have also been included in the beginning shares outstanding for the calculation of Basic Weighted-Average Shares Outstanding for the year ended December 31, 2021.