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Net Loss Per Share | 6 Months Ended
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Jun. 30, 2022
Net Loss Per Share |
Net Loss Per Share | Note 4—Net Loss Per Share Our potentially dilutive securities include potential common shares related to our stock options, warrants, restricted stock units (“RSUs”) and unsecured convertible senior notes. Diluted earnings per share (“Diluted EPS”) considers the impact of potentially dilutive securities except in periods in which there is a loss because the inclusion of the potential common shares would have an anti-dilutive effect. Diluted EPS excludes the impact of potential common shares related to our stock options in periods in which the option exercise price is greater than the average market price of our common stock for the period. Potentially dilutive securities excluded from Diluted EPS are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Six Months Ended
​ | ​ | June 30, | ​ | June 30,
​ |  | 2022 |  | 2021 |  | 2022 |  | 2021
2023 Notes convertible to common stock (1) | ​ | 4,941,739 | ​ | 4,941,739 | ​ | 4,941,739 | ​ | 4,941,739
Outstanding options to purchase common stock | ​ | 88 |  | 2,401,024 | ​ | 1,963 |  | 2,901,430
Outstanding restricted stock units | ​ | 208,819 | ​ | — | ​ | 207,736 | ​ | —
Total potentially dilutive shares excluded from net loss per share | ​ | 5,150,646 |  | 7,342,763 | ​ | 5,151,438 |  | 7,843,169
​ (1)The 2023 Notes are subject to a capped call arrangement that potentially reduces the dilutive effect as described in “Note 8 — Unsecured Convertible Senior Notes.” Any potential impact of the capped call arrangement is excluded from this table.

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