| Schedule of fair value of options assumptions |
|
|
|
|
|
|
|
|
|
|
Nine Months Ended |
|
|
|
Sep 30, |
|
|
|
2024 |
|
2023 |
|
Expected term |
|
|
6.72 |
years |
|
6.90 |
years |
Volatility |
|
|
103 |
% |
|
98 |
% |
Dividend yield |
|
|
— |
% |
|
— |
% |
Risk-free interest rate |
|
|
4.28 |
% |
|
3.85 |
% |
Weighted average grant date fair value |
|
$ |
2.59 |
|
$ |
2.75 |
|
|
|
|
|
|
|
|
|
|
|
|
Years Ended |
|
|
|
December 31, |
|
|
|
2023 |
|
2022 |
|
Expected term |
|
|
6.9 |
years |
|
9.0 |
years |
Volatility |
|
|
98 |
% |
|
90 |
% |
Dividend yield |
|
|
— |
% |
|
— |
% |
Risk-free interest rate |
|
|
3.85 |
% |
|
2.01 |
% |
Weighted average grant date fair value |
|
$ |
2.75 |
|
$ |
3.54 |
|
|
| Schedule of stock option activity |
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Weighted |
|
|
|
|
|
|
|
|
|
Average |
|
|
|
|
|
|
|
Weighted |
|
Remaining |
|
Aggregate |
|
|
Number of |
|
Average |
|
Contractual Term |
|
Intrinsic |
|
|
Options |
|
Exercise Price |
|
(in years) |
|
Value |
Outstanding, vested and expected to vest at December 31, 2023 |
|
2,985,000 |
|
$ |
5.64 |
|
7.81 |
|
$ |
251,550 |
Granted |
|
895,000 |
|
|
3.10 |
|
9.44 |
|
|
— |
Exercised |
|
— |
|
|
— |
|
— |
|
|
— |
Forfeited |
|
— |
|
|
— |
|
— |
|
|
— |
Outstanding, vested and expected to vest at September 30, 2024 |
|
3,880,000 |
|
$ |
5.05 |
|
7.61 |
|
$ |
— |
Exercisable |
|
2,915,556 |
|
$ |
5.68 |
|
7.09 |
|
$ |
— |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Weighted |
|
|
|
|
|
|
|
|
|
Average |
|
|
|
|
|
|
|
Weighted |
|
Remaining |
|
Aggregate |
|
|
Number of |
|
Average |
|
Contractual Term |
|
Intrinsic |
|
|
Options |
|
Exercise Price |
|
(in years) |
|
Value |
Outstanding, vested and expected to vest at December 31, 2022 |
|
2,467,500 |
|
$ |
6.12 |
|
8.53 |
|
$ |
5,700 |
Granted |
|
517,500 |
|
|
3.35 |
|
9.16 |
|
|
|
Exercised |
|
— |
|
|
— |
|
— |
|
|
|
Forfeited |
|
— |
|
|
— |
|
— |
|
|
|
Outstanding, vested and expected to vest at December 31, 2023 |
|
2,985,000 |
|
$ |
5.64 |
|
7.81 |
|
$ |
251,550 |
Exercisable |
|
2,280,361 |
|
$ |
5.98 |
|
7.61 |
|
$ |
55,342 |
|