Annual report pursuant to Section 13 and 15(d)

Equity Awards (Tables)

v3.22.2.2
Equity Awards (Tables)
12 Months Ended
May 31, 2022
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Stock Option and Warrant Activity

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Weighted 

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average

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Weighted

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remaining

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Aggregate

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Number of

​

average

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contractual

​

intrinsic

(in thousands, except per share data)

    

shares

    

exercise price

    

life in years

    

value

Options and warrants outstanding at May 31, 2020

 

130,561

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$

0.65

 

5.79

​

$

896

Granted

 

7,036

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$

3.82

 

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​

 

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Exercised

 

(75,735)

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$

0.59

 

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​

 

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Forfeited, expired, and cancelled

 

(1,088)

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$

1.66

 

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Options and warrants outstanding at May 31, 2021

 

60,774

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$

0.95

 

4.37

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$

68,061

Granted

 

50,205

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$

0.72

 

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​

 

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Exercised

 

(5,677)

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$

0.71

 

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Forfeited, expired, and cancelled

 

(14,597)

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$

1.36

 

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Options and warrants outstanding at May 31, 2022

 

90,705

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$

0.77

 

4.06

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$

352

Options and warrants outstanding and exercisable at May 31, 2022

 

82,918

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$

0.69

 

3.61

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$

352

Schedule of options and warrants exercises

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Years ended May 31,

(in thousands)

    

2022

    

2021

    

2020

Option and warrant exercises:

 

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Number of options and warrants exercised

 

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5,677

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​

75,735

 

​

101,853

Cash received

 

$

6,816

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$

38,327

 

$

44,024

Aggregate intrinsic value

 

$

5,815

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$

298,891

 

$

112,145

Schedule of assumptions used in determination of fair value

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Years ended May 31,

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2022

    

2021

    

2020

Expected Volatility

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94.3% - 122.0

%

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80.3% - 127.8

%

​

0.0% - 92.8

%

Weighted-Average Volatility

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104.89

%

​

84.86

%

​

52.29

%

Expected Dividends

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-

%

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-

%

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-

%

Expected Term (In years)

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1.5 - 6.0

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2.5 - 6.0

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​

0.9 - 10.0

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Risk-Free Rate

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1.67

%

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0.45

%

​

1.46

%