Stock-Based Compensation (Tables)
|
3 Months Ended |
12 Months Ended |
Oct. 31, 2022 |
Jul. 31, 2022 |
| Share-Based Payment Arrangement [Abstract] |
|
|
| Schedule of Assumptions Used to Calculate Fair Value of Stock Based Compensation |
The
following assumptions were used for the Black-Scholes calculation of the fair value of stock-based compensation related to stock options
granted during the periods presented:
Schedule of Assumptions Used to Calculate Fair Value of Stock Based Compensation
| | |
Three Months Ended October 31, 2022 | | |
Three Months Ended October 31, 2021 | |
| Expected term (years) | |
| 5.12 – 5.49 years | | |
| 5.13 – 6.00 years | |
| Risk-free interest rate | |
| 4.07 – 4.09 | % | |
| 0.69 – 0.92 | % |
| Volatility | |
| 89.96 – 91.75 | % | |
| 86.98 – 88.89 | % |
| Dividend yield | |
| 0 | % | |
| 0 | % |
|
The
following assumptions were used for the Black-Scholes calculation of the fair value of stock-based compensation related to stock options
granted during the periods presented:
Schedule of Assumptions Used to Calculate Fair Value of Stock Based Compensation
| |
|
Year
Ended
July
31, 2022 |
|
|
Year
Ended
July
31, 2021 |
|
| Expected term (years) |
|
|
5.00–6.50
years |
|
|
|
5.00–6.50
years |
|
| Risk-free interest rate |
|
|
0.69 –
2.99 |
% |
|
|
0.27 -1.13
|
% |
| Volatility |
|
|
86.98
– 91.70 |
% |
|
|
85.31
– 89.08 |
% |
| Dividend yield |
|
|
0 |
% |
|
|
0 |
% |
|
| Summary of Stock Option Activity |
The
following is a summary of the Company’s 2011 Plan and non-Plan stock option activity for the three months ended October 31, 2022:
Summary of Stock Option Activity
| | |
Options | | |
Weighted Average Exercise Price | | |
Weighted - Average Remaining Contract
(in years) | | |
Aggregate Intrinsic Value ($000) | |
| Outstanding - July 31, 2022 | |
| 133,973 | | |
$ | 57.42 | | |
| | | |
| | |
| Granted | |
| 2,273 | | |
$ | 9.94 | | |
| | | |
| | |
| Forfeited/Cancelled | |
| (6,985 | ) | |
$ | 133.46 | | |
| | | |
| | |
| Outstanding - October 31, 2022 | |
| 129,261 | | |
$ | 52.39 | | |
| 8.3 | | |
$ | - | |
| Exercisable - October 31, 2022 | |
| 104,238 | | |
$ | 56.79 | | |
| 8.1 | | |
$ | - | |
|
The
following is a summary of the Company’s 2011 Plan and non-Plan stock option activity for the year ended July 31, 2022:
Summary of Stock Option Activity
| | |
Options | | |
Weighted Average Exercise Price | | |
Weighted - Average Remaining Contract
(in years) | | |
Aggregate Intrinsic Value ($000) | |
| Outstanding - July 31, 2021 | |
| 141,438 | | |
$ | 71.94 | | |
| | | |
| | |
| Granted | |
| 34,018 | | |
$ | 19.80 | | |
| | | |
| | |
| Exercised | |
| (5,909 | ) | |
$ | 34.32 | | |
| | | |
| | |
| Forfeited/Cancelled | |
| (35,574 | ) | |
$ | 83.60 | | |
| | | |
| | |
| Outstanding - July 31, 2022 | |
| 133,973 | | |
$ | 57.42 | | |
| 8.6 | | |
$ | - | |
| Exercisable - July 31, 2022 | |
| 98,648 | | |
$ | 64.02 | | |
| 8.3 | | |
$ | - | |
|
| Summary of Restricted Stock Units |
The
following table summarize RSUs issued and outstanding:
Summary of Restricted Stock Units
| | |
RSUs | | |
Weighted Average Grant Date Fair Value | |
| Nonvested - July 31, 2022 | |
| 2,710 | | |
$ | 75.02 | |
| Vested | |
| (690 | ) | |
$ | 76.62 | |
| Nonvested - October 31, 2022 | |
| 2,020 | | |
$ | 74.37 | |
|
The
following table summarize RSUs issued and outstanding:
Summary
of Restricted Stock Units
| | |
RSUs | | |
Weighted Average Grant Date Fair Value | |
| Nonvested - July 31, 2021 | |
| 20,125 | | |
$ | 71.28 | |
| Vested | |
| (3,774 | ) | |
$ | 74.80 | |
| Forfeited/Cancelled | |
| (13,641 | ) | |
$ | 69.52 | |
| Nonvested - July 31, 2022 | |
| 2,710 | | |
$ | 75.02 | |
|
| Summary of Common Stock Reserved for Future Issuance |
The
following table summarizes all common stock reserved for future issuance at October 31, 2022:
Summary of Common Stock Reserved for Future Issuance
| | |
| | |
| Common Stock options outstanding (within the 2011 Plan and outside of the terms of the 2011 Plan) | |
| 129,261 | |
| Common Stock reserved for restricted stock unit settlement | |
| 2,020 | |
| Common Stock authorized for future grant under the 2011 Plan | |
| 80,069 | |
| Common Stock reserved for warrant exercise | |
| 75,897 | |
| Shares issuable under CGP and Sirtex stock purchase agreements (Note 6) | |
| 85,585 | |
| Common Stock reserved for future ESPP issuance | |
| 1,218 | |
| Total Common Stock reserved for future issuance | |
| 374,050 | |
|
The
following table summarizes all common stock reserved for future issuance at July 31, 2022:
Summary of Common Stock Reserved for
Future Issuance
| | |
| | |
| Common Stock options outstanding (within the 2011 Plan and outside of the terms of the 2011 Plan) | |
| 133,973 | |
| Common Stock reserved for restricted stock unit release | |
| 2,710 | |
| Common Stock authorized for future grant under the 2011 Plan | |
| 79,484 | |
| Common Stock reserved for warrant exercise | |
| 77,554 | |
| Shares issuable under CGP and Sirtex stock purchase agreements (Note 6) | |
| 87,455 | |
| Common Stock reserved for future ESPP issuance | |
| 1,218 | |
| Total Common Stock reserved for future issuance | |
| 382,394 | |
|