v3.26.3
Share-based compensation
9 Months Ended
Sep. 30, 2026
Share-Based Payment Arrangement [Abstract]  
Share-based compensation
Note 19 — Share-based compensation
The Company maintains a LTIP, which provides for the grant of incentive stock options, non-statutory stock options, restricted stock units, performance stock units and other share-based awards to eligible participants. The number of SVS reserved for issuance under the LTIP is calculated as 10% of the aggregate number of SVS and MVS outstanding on an "as-converted" basis.
On June 5, 2026, the Company effected a 1-for-3 reverse stock split of its SVS and MVS. All share amounts, per share amounts, voting rights and equity award information included herein has been retrospectively adjusted to reflect the reverse stock split for all periods presented. See Note 2 — Basis of presentation and consolidation for further detail.
Option and RSU Exchange Program
On December 11, 2025, the Company's Board of Directors approved, subject to shareholder and regulatory approval, a one-time option exchange program (the "Option Exchange Program") pursuant to which eligible holders of certain outstanding stock options with exercise prices of $15.00 or greater could voluntarily exchange such options for newly issued restricted stock units ("Replacement RSUs") on a one-for-one basis. The eligible options had exercise prices ranging from $15.60 to $47.34. In addition, 1.8 million performance-based stock options held by the Company's Chairman and Chief Executive Officer with an exercise price of $8.67 per share were eligible to participate in the Option Exchange Program. The Option Exchange Program was approved by the Company's shareholders on June 22, 2026 and became effective on June 30, 2026. On the effective date, approximately 3.3 million stock options were surrendered and cancelled in exchange for an equal number of Replacement RSUs. The Replacement RSUs generally vest in three equal annual installments through December 11, 2028, subject to continued service.
The exchange was accounted for as a modification of equity-classified awards under ASC 718, Stock Compensation. Incremental compensation cost was measured as the excess of the fair value of the Replacement RSUs immediately after the exchange date over the fair value of the original options immediately prior to the exchange date. For the performance-based option awards held by the Company's Chairman and Chief Executive Officer, fair value immediately prior to the modification date was determined using a Monte Carlo simulation model due to the market-based vesting conditions associated with such awards. Based on a modification-date fair value of $10.81 per Replacement RSU, the Option Exchange Program resulted in approximately $19.9 million of incremental compensation cost, which will be recognized over the remaining requisite service periods of the Replacement RSUs. In addition, the Company will continue to recognize any remaining unrecognized compensation cost associated with the exchanged awards over the vesting period of the Replacement RSUs.
Share-based compensation consisted of the following for the three and nine months ended September 30, 2026 and 2025:
Three months ended September 30, Nine months ended September 30,
2026202520262025
Equity-classified awards:
Stock options$1,494 $2,180 $4,634 $6,185 
Performance stock units4,395 4,004 12,715 4,986 
Restricted stock units8,156 3,041 16,830 8,611 
Share-based compensation expense: equity-classified awards14,045 9,225 34,179 19,782 
Liability-classified awards:
Virtual share option awards(1)
— 1,069 (199)3,613 
Share-based compensation expense: liability-settled awards— 1,069 (199)3,613 
Total share-based compensation expense$14,045 $10,294 $33,980 $23,395 
(1) Includes the cumulative share-based compensation expense recognized for VSOs granted during the second quarter of 2025, for which the requisite service periods retroactively commenced in January 2023. During the nine months ended September 30, 2026, the Company recorded a benefit of $0.2 million related to a true-up of the liability associated with certain VSOs, which reduced share-based compensation expense during the period.
Stock options
As of September 30, 2026 and 2025, total unamortized compensation cost related to unvested stock options was $7.0 million and $13.8 million, respectively, which the Company expects to recognize over a weighted-average period of 1.62 and 2.04 years, respectively.
The total intrinsic value of stock options exercised and the total fair value of stock options vested during the nine months ended September 30, 2026 and 2025 were as follows:
Nine months ended September 30,
20262025
Total intrinsic value of options exercised$10,867 $4,767 
Total fair value of options vested4,678 4,816 
Significant assumptions used to estimate the fair value of the Company's stock options granted during the nine months ended September 30, 2026 and 2025 were as follows:
Nine months ended September 30,
20262025
Expected volatility
  82% — 85%
72% — 74%
Expected life in years
5.38 — 6.05
     6.16 — 6.24
Expected dividends(1)
—%
—%
Risk-free interest rate (based on government bonds)
3.89% — 4.84%
3.81% — 4.21%
(1) The Company has never paid cash dividends and does not expect to pay cash dividends in the foreseeable future.
The Company's stock option activity during the nine months ended September 30, 2026 were as follows:
Number of
options
Weighted
average
exercise price
Weighted average remaining contractual life
(years)
Aggregate intrinsic value
Outstanding at January 1, 2026
10,618,602 $8.658 
Forfeited(670,855)4.596 
Cancelled under the Option Exchange Program(3,305,683)15.912 
Expired(282,827)24.889 
Exercised(1,572,346)1.292 
Granted241,645 9.449 
Outstanding at September 30, 20265,028,536 $5.858 7.19$26,413 
Options exercisable at September 30, 20262,359,455 $7.388 5.60$10,677 
Performance stock units
As of September 30, 2026 and 2025, total unamortized compensation cost related to unvested performance stock units was $17.4 million and $9.3 million, respectively, which the Company expects to recognize over a weighted-average period of 1.49 and 1.59 years, respectively.
The Company's PSU activity during the nine months ended September 30, 2026 were as follows:
Number of PSUsWeighted-Average Grant Date Fair Value
Unvested at January 1, 2026
3,263,478 $3.180 
Forfeited(622,681)2.811 
Vested(1)
(928,214)3.623 
Granted2,025,655 6.788 
Unvested at September 30, 20263,738,238 $5.096 
Inception-to-date PSUs vested at September 30, 20261,180,376 $4.872 
(1) Includes 320,791 SVS, at a weighted-average fair value of $6.855, withheld by the Company to satisfy applicable statutory tax withholding obligations upon the vesting of PSUs during the reporting period. The SVS withheld were returned to the pool of SVS available for future issuance under the LTIP.
Restricted stock units
As of September 30, 2026 and 2025, total unamortized compensation cost related to unvested restricted stock units was $59.0 million and $21.6 million, respectively, which the Company expects to recognize over a weighted-average period of 1.87 and 2.11 years, respectively.
The Company's RSU activity during the nine months ended September 30, 2026 were as follows:
Number of RSUsWeighted-Average Grant Date Fair Value
Unvested at January 1, 2026
8,848,666 $4.830 
Forfeited(740,423)5.528 
Vested(1)
(2,636,879)4.315 
Granted under the Option Exchange Program3,305,683 6.020 
Granted2,888,413 8.980 
Unvested at September 30, 202611,665,460 $6.274 
Inception-to-date RSUs vested at September 30, 20266,530,078 $12.329 
(1) Includes 598,324 SVS, at a weighted-average fair value of $7.080, withheld by the Company to satisfy applicable statutory tax withholding obligations upon the vesting of RSUs during the reporting period. The SVS withheld were returned to the pool of SVS available for future issuance under the LTIP.