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Share Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2023
Share Based Compensation [Abstarct] |
Schedule of the Option Activity | A summary of the option activity for the years ended December 31, 2023, 2022 and 2021 and changes during the period is presented below:
|  | Number of share options(1) |  |  | Weighted average exercise price $ |  |  | Remaining contractual term in years |  |  | Aggregate Intrinsic value |
Outstanding, January 1, 2023 |  |  | 272,126 |  |  |  | 21.54 |  |  |  | 10.83 |  |  |  |  |
Granted |  |  | 403,820 |  |  |  | 2.68 |  |  |  |  |  |  |  |  |
Exercised |  |  | (791 | ) |  |  | 20.90 |  |  |  |  |  |  |  | - |
Modified |  |  | (248,095 | ) |  |  | 21.74 |  |  |  |  |  |  |  |  |
Outstanding, December 31, 2023 |  |  | 427,060 |  |  |  | 3.59 |  |  |  | 9.28 |  |  |  | - |
Exercisable, December 31, 2023 |  |  | 420,157 |  |  |  | 3.43 |  |  |  | 9.42 |  |  |  | - |
|  | Number of share options(1) |  |  | Weighted average exercise price $ |  |  | Remaining contractual term in years |  |  | Aggregate Intrinsic value |
Outstanding, January 1, 2022 |  |  | 127,404 |  |  |  | 31.91 |  |  |  | 11.01 |  |  |  |  |
Granted |  |  | 153,146 |  |  |  | 13.40 |  |  |  | 12.30 |  |  |  |  |
Exercised |  |  | (6,721 | ) |  |  | 25.25 |  |  |  |  |  |  |  | - |
Forfeited |  |  | (1,268 | ) |  |  | 28.11 |  |  |  |  |  |  |  |  |
Cancelled |  |  | (435 | ) |  |  | 116.71 |  |  |  |  |  |  |  |  |
Outstanding, December 31, 2022 |  |  | 272,126 |  |  |  | 21.54 |  |  |  | 10.83 |  |  |  | - |
Exercisable, December 31, 2022 |  |  | 89,300 |  |  |  | 32.71 |  |  |  | 9.64 |  |  |  | - |
|  | Number of share options(1) |  |  | Weighted average exercise price $ |  |  | Remaining contractual term in years |  |  | Aggregate Intrinsic value |
Outstanding, January 1, 2021 |  |  | 71,756 |  |  |  | 37.63 |  |  |  | 11.22 |  |  |  |  |
Granted |  |  | 75,235 |  |  |  | 27.60 |  |  |  | 12.29 |  |  |  |  |
Exercised |  |  | (19,037 | ) |  |  | 36.52 |  |  |  |  |  |  |  | - |
Forfeited |  |  | (550 | ) |  |  | 29.00 |  |  |  |  |  |  |  |  |
Outstanding, December 31, 2021 |  |  | 127,404 |  |  |  | 31.91 |  |  |  | 11.01 |  |  |  | - |
Exercisable, December 31, 2021 |  |  | 31,456 |  |  |  | 42.62 |  |  |  | 9.63 |  |  |  | - |
(1) | All per share amounts and shares outstanding for all periods have been retroactively restated to reflect APTORUM GROUP LIMITED’s 1 for 10 reverse stock split, which was effective on January 23, 2023.
Schedule of Each Stock Option Award is Estimated on the Date of Grant Using the Black-Scholes Option Pricing Model | The fair value of each stock option award is estimated on the date of grant using the Black-Scholes option pricing model under the following assumptions.
|  | Granted in 2023 |  |  | Granted in 2022 |  |  | Granted in 2021 |
Expected volatility |  |  | 170.10 | % |  |  | 89.55 | % |  |  | 97.70 | %
Risk-free interest rate |  |  | 3.48 | % |  |  | 1.86 | % |  |  | 1.64 | %
Expected term from grant date (in years) |  |  | 5.25 |  |  |  | 5.63-6.41 |  |  |  | 5.62-6.41 |
Dividend rate |  |  | - |  |  |  | - |  |  |  | - |
Dilution factor |  |  | 1 |  |  |  | 1 |  |  |  | 1 |
Fair value |  | $ | 2.68 |  |  | $ | 9.74 - $10.16 |  |  | $ | 25.11 - $26.01 |

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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