General form for registration of securities under the Securities Act of 1933

Equity Incentive Plan (Tables)

v3.26.1
Equity Incentive Plan (Tables)
9 Months Ended 12 Months Ended
Feb. 28, 2026
May 31, 2025
Equity Incentive Plan    
Schedule of stock option activity

Weighted 

average

Weighted

remaining

Aggregate

Number of

average

contractual

intrinsic

(in thousands, except per share data and years)

  ​ ​ ​

shares

  ​ ​ ​

exercise price

  ​ ​ ​

life in years

  ​ ​ ​

value

Options outstanding at May 31, 2025

 

38,324

$

0.46

 

7.65

$

4,039

Granted

 

925

$

0.29

 

 

Exercised

 

(100)

$

0.21

 

 

6

Forfeited, expired, and cancelled

 

(905)

$

1.14

 

 

Options outstanding at February 28, 2026

 

38,244

$

0.44

 

6.98

$

1,794

Options outstanding and exercisable at February 28, 2026

 

31,322

$

0.44

 

6.66

$

1,320

Weighted 

average

Weighted

remaining

Aggregate

Number of

average

contractual

intrinsic

(in thousands, except exercise price and years)

  ​ ​ ​

shares

  ​ ​ ​

exercise price

  ​ ​ ​

life in years

  ​ ​ ​

value

Options outstanding at May 31, 2023

 

19,823

$

0.99

 

7.87

$

Granted

 

14,251

$

0.21

 

 

Exercised

 

$

 

 

Forfeited, expired, and cancelled

 

(8,225)

$

0.87

 

 

Options outstanding at May 31, 2024

 

25,849

$

0.60

 

7.77

$

Granted

 

13,025

$

0.17

 

 

Exercised

 

(500)

$

0.21

 

$

72

Forfeited, expired, and cancelled

 

(50)

$

0.66

 

 

Options outstanding at May 31, 2025

 

38,324

$

0.46

 

7.65

$

4,039

Options outstanding and exercisable at May 31, 2025

 

28,594

$

0.54

 

7.23

$

2,653

Schedule of PSU activity

Weighted average

Number of

Weighted average

remaining contractual

(shares in thousands)

  ​ ​ ​

RSUs and PSUs (1)

  ​ ​ ​

grant date fair value

life in years

Unvested PSUs at May 31, 2025

3,500

0.41

1.75

PSUs granted

PSUs forfeited

PSUs vested

Unvested PSUs at February 28, 2026

 

3,500

$

0.41

1.00

(1) The number of PSUs disclosed in this table are at the target level of 100%.
 
Summary of fair values of stock options granted  

Years ended May 31,

2025

  ​ ​ ​

2024

Expected Volatility

123.2% - 130.4

%

108.6% - 115.7

%

Weighted-Average Volatility

127.02

%

112.24

%

Expected Dividends

%

%

Expected Term (In years)

5.1 - 6.1

5.1 - 6.0

Risk-Free Rate

3.96

%

3.96

%

Schedule of Company RSU and PSU activity  

Weighted average

Number of

Weighted average

remaining contractual

(shares in thousands)

  ​ ​ ​

RSUs and PSUs (1)

  ​ ​ ​

grant date fair value

life in years

Unvested RSUs and PSUs at May 31, 2023

 

1,293

$

0.58

0.81

RSUs and PSUs granted

 

RSUs and PSUs forfeited

 

(1,293)

0.58

RSUs and PSUs vested

 

Unvested RSUs and PSUs at May 31, 2024

RSUs and PSUs granted

3,500

0.41

RSUs and PSUs forfeited

RSUs and PSUs vested

Unvested RSUs and PSUs at May 31, 2025

 

3,500

$

0.41

1.75

(1)

The number of PSUs disclosed in this table are at the target level of 100%.