v3.26.1
Stock-Based Compensation (Tables)
9 Months Ended
Jun. 30, 2026
Stock-Based Compensation  
Schedule of stock-based compensation expense

Three months ended June 30, 

Nine months ended June 30, 

2026

  ​ ​ ​

2025

  ​ ​ ​

2026

  ​ ​ ​

2025

Research and development

$

63,266

$

91,636

$

254,202

$

289,889

General and administrative

728,405

1,579,176

2,176,102

6,757,008

Total

$

791,671

$

1,670,812

$

2,430,304

$

7,046,897

Employee Stock Option  
Stock-Based Compensation  
Schedule of stock option activity

Weighted

Average

Weighted

Remaining

Number of

Average

Contractual

Aggregate

  ​ ​ ​

Shares

  ​ ​ ​

Exercise Price

  ​ ​ ​

Term (Years)

  ​ ​ ​

Intrinsic Value

Balance at September 30, 2025

3,611,362

$

11.36

7.6

$

Granted

3,298,887

1.18

Forfeited

(480,720)

1.34

Expired

(225,627)

11.18

Balance at June 30, 2026

6,203,902

$

6.73

8.2

$

Vested and exercisable at June 30, 2026

2,803,983

$

13.17

7.0

$

Schedule of option assumptions

Nine months ended June 30, 

2026

  ​ ​ ​

2025

Risk-free interest rate

  ​ ​ ​

3.8

%  

3.6

%  

Expected term (years)

5.6

5.5

Expected volatility

132.1

%  

134.1

%  

Expected dividend yield

Performance-based stock options  
Stock-Based Compensation  
Schedule of stock option activity

Weighted

Average

Weighted

Remaining

Number of

Average

Contractual

Aggregate

  ​ ​ ​

Shares

  ​ ​ ​

Exercise Price

  ​ ​ ​

Term (Years)

  ​ ​ ​

Intrinsic Value

Balance at September 30, 2025

125,500

$

12.92

7.6

$

Forfeited

(90,500)

6.78

Expired

(5,000)

28.80

Balance at June 30, 2026

30,000

$

28.80

5.5

$

Vested and exercisable at June 30, 2026

30,000

$

28.80

5.5

$