December 31,

2023

2022

(In thousands)

Accrued research and development

$

27,411

$

32,684

Employee compensation and benefits

26,615

21,778

Accrued legal and professional expenses

2,063

1,457

Accrued construction costs

6,891

-

Accrued other

4,037

4,957

Total accrued expenses

$

67,017

$

60,876