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Share-based compensation (Tables)
3 Months Ended
Mar. 31, 2024
Share-based compensation  
Schedule of share-based compensation expense by classification included in consolidated statements of operations and comprehensive loss

    

Three months ended March 31, 

2024

2023

(in thousands)

Cost of manufacturing services revenue

$

345

$

24

Research and development

3,425

4,305

Selling, general and administrative

3,421

3,732

Total

$

7,191

$

8,061

Schedule of share-based compensation expense

Three months ended March 31, 

2024

2023

(in thousands)

Award type/ESPP

Share options

$

2,913

$

3,274

Restricted share units

4,370

4,630

Performance share units

(99)

150

Employee share purchase plan

7

7

Total

$

7,191

$

8,061

Schedule of unrecognized compensation cost related to unvested awards

    

Unrecognized

  

Weighted average

    

share-based

    

remaining

compensation

period for

expense

     recognition     

(in thousands)

(in years)

Award type

Share options

$

20,743

2.56

Restricted share units

27,981

1.99

Performance share units

80

0.61

Total

$

48,804

2.23

Schedule of weighted-average assumptions for fair value of option issued

Three months ended March 31, 

Assumptions

    

2024

    

2023

Expected volatility

70%

70%

Expected terms

10 years

10 years

Risk free interest rate

4.32%

4.10%

Expected dividend yield

0%

0%

Summary of RSUs activity

RSUs

    

    

Weighted average

Number of

grant-date fair

ordinary shares

value

Non-vested at December 31, 2023

2,264,369

$

18.07

Granted

1,160,800

$

5.59

Vested

(659,240)

$

20.30

Forfeited

(58,401)

$

17.39

Non-vested at March 31, 2024

2,707,528

$

12.19

Total weighted average grant date fair value of RSUs granted during the period (in $ millions)

$

6.5

Summary of PSUs activity

PSUs

    

    

Weighted average

Number of

grant-date fair

ordinary shares

value

Non-vested at December 31, 2023

222,550

$

28.09

Forfeited

(17,030)

$

27.12

Non-vested at March 31, 2024

205,520

$

27.99

2014 Plan  
Share-based compensation  
Summary of option activity

Options

Number of

Weighted average

    

ordinary shares

    

exercise price

Outstanding at December 31, 2023

4,974,030

23.25

Granted

930,900

$

5.59

Forfeited

(71,437)

$

21.26

Expired

(11,584)

$

37.61

Outstanding at March 31, 2024

5,821,909

$

20.42

Thereof, fully vested, and exercisable on March 31, 2024

3,054,242

$

25.70

Thereof, outstanding and expected to vest after March 31, 2024

2,767,667

$

14.60

Outstanding and expected to vest after December 31, 2023

2,098,557

$

23.38

Total weighted average grant date fair value of options issued during the period (in $ millions)

$

3.0