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Stock-Based Awards (Tables)
6 Months Ended
Mar. 31, 2021
Summary of Stock Option Activity Including Performance Based Options The following table summarizes stock option activity, including performance-based options, for the year-to-date period ending March 31, 2021:

 

 

 

Shares

Issuable

Under

Options

 

 

Weighted

Average

Exercise

Price

 

 

Weighted

Average

Remaining

Contractual

Term

 

 

Aggregate

Intrinsic

Value

 

 

 

(in thousands)

 

 

 

 

 

 

(in years)

 

 

(in thousands)

 

Outstanding as of September 30, 2020

 

 

3,262

 

 

$

49.82

 

 

 

6.5

 

 

$

21,860

 

Granted

 

 

805

 

 

 

44.76

 

 

 

 

 

 

 

 

 

Exercised

 

 

(76

)

 

 

26.27

 

 

 

 

 

 

 

 

 

Forfeited

 

 

(105

)

 

 

66.81

 

 

 

 

 

 

 

 

 

Outstanding as of March 31, 2021

 

 

3,886

 

 

$

48.77

 

 

 

6.8

 

 

$

29,478

 

Options vested and expected to vest as of

   March 31, 2021

 

 

3,886

 

 

$

48.77

 

 

 

6.8

 

 

$

29,478

 

Options exercisable as of March 31, 2021

 

 

2,312

 

 

$

44.40

 

 

 

5.4

 

 

$

25,801

 

Summary of Restricted Stock Unit Activity The following table summarizes the restricted stock unit activity for the year-to-date period ending March 31, 2021:

 

 

 

Restricted Stock

Units

 

 

Weighted

Average Grant

Date Fair

Value

 

 

 

(in thousands, except per share data)

 

Unvested at September 30, 2020

 

 

45

 

 

$

30.00

 

Granted

 

 

123

 

 

 

43.57

 

Vested

 

 

(45

)

 

 

30.00

 

Cancelled

 

 

(1

)

 

 

37.68

 

Unvested at March 31, 2021

 

 

122

 

 

$

43.57

 

Stock-Based Compensation Expense

During the three and six months ended March 31, 2021 and 2020, the Company recognized the following stock-based compensation expense:

 

 

 

Three Months ended

 

 

Six Months Ended

 

 

 

March 31,

 

 

March 31,

 

 

 

2021

 

 

2020

 

 

2021

 

 

2020

 

 

 

(in thousands)

 

Research and development

 

$

2,536

 

 

$

2,688

 

 

$

4,955

 

 

$

5,180

 

General and administrative

 

 

2,744

 

 

 

2,289

 

 

 

5,208

 

 

 

4,896

 

 

 

$

5,280

 

 

$

4,977

 

 

$

10,163

 

 

$

10,076

 

 

 

 

Three Months ended

 

 

Six Months Ended

 

 

 

March 31,

 

 

March 31,

 

 

 

2021

 

 

2020

 

 

2021

 

 

2020

 

 

 

(in thousands)

 

Stock options

 

$

4,514

 

 

$

4,441

 

 

$

8,863

 

 

$

8,777

 

Performance stock units

 

 

 

 

 

16

 

 

 

 

 

 

259

 

rTSRUs

 

 

444

 

 

 

359

 

 

 

721

 

 

 

721

 

Restricted stock units

 

 

322

 

 

 

161

 

 

 

579

 

 

 

319

 

 

 

$

5,280

 

 

$

4,977

 

 

$

10,163

 

 

$

10,076

 

Performance Share Units and Relative Total Stockholder Return Units [Member]  
Summary of PSUs and rTSRUs Activity The following table summarizes PSU and rTSRU activity for the year-to-date period ending March 31, 2021:

 

 

PSUs

 

 

rTSRUs

 

 

 

Shares

 

 

Weighted

Average

Grant Date Fair

Value

 

 

Shares

 

 

Weighted

Average

Grant Date Fair

Value

 

 

 

(in thousands, except per share data)

 

Unvested at September 30, 2020

 

 

46

 

 

$

65.23

 

 

 

46

 

 

$

46.46

 

Granted

 

 

84

 

 

 

44.58

 

 

 

84

 

 

 

26.55

 

Vested

 

 

 

 

 

 

 

 

 

 

 

 

Cancelled

 

 

(19

)

 

 

67.13

 

 

 

(19

)

 

 

47.42

 

Unvested at March 31, 2021

 

 

111

 

 

 

49.31

 

 

 

111

 

 

$

31.26