June 30,
2026

December 31,
2025

Accrued external research and development

$

18,568

$

8,589

Accrued compensation

5,614

9,517

Accrued payroll tax withholding on stock option exercises

1,190

—

Accrued professional fees

171

215

Other accrued expenses

558

1,131

Accrued expenses

$

26,101

$

19,452