| Schedule of potential dilutive common shares |
| | | | | | | | | At December 31, | | | 2023 | | 2022 | | 2021 | Stock options outstanding (1) | | 39,261,362 | | 27,598,269 | | 23,806,909 | Restricted stock and restricted stock units outstanding (2) | | 6,732,884 | | 6,276,376 | | 4,851,873 | Common stock warrants (3) | | 78,561,263 | | 88,774,725 | | 80,017,181 | Convertible Senior Notes (4) | | 39,170,766 | | 39,170,766 | | 39,170,766 | Number of dilutive potential shares of common stock | | 163,726,275 | | 161,820,136 | | 147,846,729 |
| (1) | During the years ended December 31, 2023, 2022, and 2021, the Company granted options for 13,254,689, 4,761,724, and 16,502,335 shares of common stock, respectively. |
| (2) | During the years ended December 31, 2023, 2022, and 2021, the Company granted 4,131,193, 4,289,682, and 1,894,356, 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, subject to certain vesting events, as described in Note 17, “Warrant Transaction Agreements”. The warrant had no shares exercised of the Company’s common stock as of December 31, 2023. |
In April 2017, the Company issued a warrant to acquire up to 55,286,696 of the Company’s common stock as part of a transaction agreement with Amazon, subject to certain vesting events, as described in Note 17, “Warrant Transaction Agreements”. The warrant was exercised with respect to 34,917,912 shares and 24,704,450 shares of the Company’s common stock as of December 31, 2023 and 2022, respectively. In July 2017, the Company issued a warrant to acquire up to 55,286,696 of the Company’s common stock as part of a transaction agreement with Walmart, subject to certain vesting events, as described in Note 17, “Warrant Transaction Agreements”. The warrant had been exercised with respect to 13,094,217 shares of the Company’s common stock as of December 31, 2023 and 2022. | (4) | 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 other conversions for the years ended December 31, 2023 and 2022. |
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