| Schedule of potential dilutive common shares |
| | | | | | | At June 30, | | | 2023 | | 2022 | Stock options outstanding (1) | | 33,821,392 | | 24,184,619 | Restricted stock and restricted stock units outstanding (2) | | 5,529,831 | | 5,616,280 | Common stock warrants (3) | | 78,561,263 | | 80,017,181 | Convertible Senior Notes (4) | | 39,170,766 | | 39,170,766 | Number of dilutive potential shares of common stock | | 157,083,252 | | 148,988,846 |
| (1) | During the three months ended June 30, 2023 and 2022, the Company granted options for 6,782,043 and 308,351 shares of common stock, respectively. During the six months ended June 30, 2023 and 2022, the Company granted options for 6,876,593 and 759,851 shares of common stock, respectively. |
| (2) | During the three months ended June 30, 2023 and 2022, the Company granted 294,143 and 323,991 shares of restricted stock and restricted stock units, respectively. During the six months ended June 30, 2023 and 2022, the Company granted 388,693 and 1,126,491 shares of restricted stock and restricted stock units, respectively. |
| (3) | In August 2022, the Company issued a warrant to acquire up to 16,000,000 shares of the Company’s common stock as part of a transaction agreement with Amazon.com, Inc. (“Amazon”), subject to certain vesting events, as described in Note 12, “Warrant Transaction Agreements.” The warrant had not been exercised as of June 30, 2023. |
In April 2017, the Company issued a warrant to acquire up to 55,286,696 shares of the Company’s common stock as part of a transaction agreement with Amazon, subject to certain vesting events, as described in Note 12, “Warrant Transaction Agreements.” The warrant had been exercised with respect to 34,917,912 and 17,461,994 shares of the Company’s common stock as of June 30, 2023 and 2022, respectively. In July 2017, the Company issued a warrant to acquire up to 55,286,696 shares of the Company’s common stock as part of a transaction agreement with Walmart, Inc. (“Walmart”), subject to certain vesting events, as described in Note 12, “Warrant Transaction Agreements.” The warrant had been exercised with respect to 13,094,217 shares of the Company’s common stock as of June 30, 2023 and 2022, respectively. | (4) | In March 2018, the Company issued $100.0 million in aggregate principal amount of the 5.5% Convertible Senior Notes due 2023 (the “5.5% Convertible Senior Notes”). In May 2020, the Company repurchased $66.3 million of the 5.5% Convertible Senior Notes and in the fourth quarter of 2020, $33.5 million of the 5.5% Convertible Senior Notes were converted into approximately 14.6 million shares of common stock. The remaining $0.2 million aggregate principal amount of the 5.5% Convertible Senior Notes were converted into 69,808 shares of common stock in January 2021. In May 2020, the Company issued $212.5 million in aggregate principal amount of the 3.75% Convertible Senior Notes due 2025 (the “3.75% Convertible Senior Notes’). There were no conversions for the three and six months ended June 30, 2023 and 2022. |
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