v3.26.1
Share-Based Compensation
6 Months Ended
Jun. 30, 2026
Share-Based Payment Arrangement [Abstract]  
Share-Based Compensation

8. Share-Based Compensation

Share-Based Compensation Expense

Share-based compensation expense included in the condensed consolidated statements of operations was recognized as follows:

Three Months Ended June 30, 

Six Months Ended June 30, 

(In thousands)

  ​ ​ ​

2026

  ​ ​ ​

2025

2026

  ​ ​ ​

2025

Research and development

$

566

$

987

$

1,193

$

2,057

Selling, general and administrative

 

3,572

 

3,556

 

6,421

 

7,363

Restructuring expenses

1,852

2,880

Total share-based compensation expense

$

5,990

$

4,543

$

10,494

$

9,420

 

 

Share-Based Compensation Modification Due to Organizational Restructuring

As a result of the Restructuring announcement on March 3, 2026 (see “Note 10. Organizational Restructuring” for information), the Board of Directors’ Compensation Committee approved the acceleration of certain equity awards for employees affected by the Restructuring. The Company accounted for the acceleration as a Type III modification

(improbable to probable) under applicable share-based compensation accounting guidance. The modification occurred on different dates for US and Ireland employees and resulted in aggregate incremental fair value of approximately $5.2 million, as of the respective modification dates.

The incremental compensation cost associated with the modified awards is recognized on a straight-line basis over the requisite service period of the modified awards and is included in “Restructuring expenses” within the condensed consolidated statements of operations. Recognition of the modification expense began in the three months ended March 31, 2026 for awards held by US employees and in the three months ended June 30, 2026 for awards held by Ireland employees, reflecting the respective modification dates. For the three and six months ended June 30, 2026, the Company recognized $1.8 million and $2.9 million, respectively, of share-based compensation expense related to the modified awards.

Share-Based Compensation Option and Award Activity

The following tables summarize option and RSU activity (including market-based and performance-contingent RSUs) for the three and six months ended June 30, 2026 and 2025:

Weighted-Average

Weighted-

Average

  ​ ​ ​

Number of Shares 

Remaining

Exercise Price of

Number of Shares

  ​ ​ ​

Subject to

Contractual

Outstanding Options

Subject to

Outstanding Options

Term (Years)

(in dollars)

Outstanding RSUs

Outstanding at December 31, 2025

1,927,447

$

15.05

3,202,492

 

Granted

69,215

Exercised/Released

(22,044)

10.95

(720,320)

Forfeited

(2,393)

10.30

(193,076)

Expired

(17,240)

27.73

Outstanding at March 31, 2026

1,885,770

5.3

14.98

2,358,311

Granted

66,990

16.64

416,645

Exercised/Released

(77,657)

14.64

(425,094)

Forfeited

(375)

10.29

(226,197)

Expired

(40,650)

23.97

Outstanding at June 30, 2026

1,834,078

5.0

$

14.86

2,123,665

 

 

Weighted-Average

Weighted-

Average

  ​ ​ ​

Number of Shares 

Remaining

Exercise Price of

Number of Shares

Subject to

Contractual

Outstanding Options

Subject to

Outstanding Options

Term (Years)

(in dollars)

Outstanding RSUs

Outstanding at December 31, 2024

1,896,908

$

15.53

3,955,487

Granted

1,311,088

Exercised/Released

(619,026)

Forfeited

(163,160)

Outstanding at March 31, 2025

1,896,908

5.8

15.53

4,484,389

Granted

169,806

74,543

Exercised/Released

(413,240)

Forfeited

(44,996)

Expired

(50,500)

Outstanding at June 30, 2025

2,016,214

6.0

$

14.91

4,100,696