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Stockholders' Equity | 12 Months Ended
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Dec. 31, 2025
Equity [Abstract] |
Stockholders' Equity | 11. Stockholders’ Equity Share Repurchases In December 2023, the Board authorized and approved a stock repurchase of up to $25.0 million of the Company's common stock (the “Share Repurchase Program”) concurrent with the issuance of $600.0 million aggregate principal amount of its 2023 Notes. During the years ended December 31, 2025 and 2024, the Company did not repurchase any shares of common stock under the Share Repurchase Program. During the year ended December 31, 2023, the Company used $14.4 million of the proceeds from the issuance of the 2023 Notes to repurchase 92,090 shares at a price of $156.22, including transaction costs, to offset the impact of dilution from the issuance of 2023 Notes and equity compensation programs as well as to reduce its outstanding share count. Stock Option and Incentive Plans Under the Company’s current 2018 Stock Option and Incentive Plan (the “2018 Plan”), the number of shares of the Company’s common stock that are reserved and available for issuance shall be 2,778,000 plus the number of shares of common stock available for issuance under the Company’s Amended and Restated 2012 Stock Option and Incentive Plan (the “2012 Plan”, and together with the 2018 Plan, the “Plans”). The shares of common stock underlying any awards under the Plans that are forfeited, canceled or otherwise terminated (other than by exercise) shall be added back to the shares of stock available for issuance under the 2018 Plan. At December 31, 2025, 1,194,241 shares were available for future grants under the 2018 Plan. Former Chief Executive Officer Accounting Modifications On June 12, 2024, upon approval by the Board, the Company entered into the Fourth Amended and Restated Employment Agreement (the “Transition Agreement”) with the Company's former Chief Executive Officer (“CEO”), Tony J. Hunt, which amends and restates Mr. Hunt's Third Amended and Restated Employment Agreement with the Company dated as of May 26, 2022. Under the terms of the Transition Agreement, Mr. Hunt relinquished his position as the Company's CEO effective September 1, 2024 (the “Transition Date”) and transitioned to a new role as Executive Chair of the Board beginning on the Transition Date (the “CEO Transition”). On January 6, 2026, the Company announced Mr. Hunt will retire as a member of the Board, effective March 13, 2026, and will continue to remain an advisor, providing services to the Company consistent with the Transition Agreement. Under the terms of the Transition Agreement and the award agreements governing Mr. Hunt’s outstanding equity awards, Mr. Hunt’s unvested stock awards will continue to vest in accordance with their original terms. Furthermore, on June 28, 2024, the Company entered into an amendment (the “2024 Award Amendment”) to the equity awards granted to Mr. Hunt in 2024, which consisted of a stock option, restricted stock units (“RSUs”) and performance stock units (“PSUs” and together the “2024 Grants”). Pursuant to the terms of the 2024 Award Amendment, two-thirds of the 2024 Grants were forfeited, which equates to 32,776 shares of the Company’s common stock. Although Mr. Hunt’s unvested equity awards continue to vest in accordance with their original terms and there has been no amendment to Mr. Hunt’s outstanding equity awards other than the 2024 Award Amendment, the Company determined that under ASC 718, “Compensation - Stock Compensation”, the CEO Transition represented a significant reduction in Mr. Hunt’s operating role with the Company for accounting purposes. This determination resulted in a Type III accounting modification of certain of Mr. Hunt’s unvested stock awards (improbable to probable) under ASC 718 (the “Equity Modification”) on June 12, 2024. As a result, for accounting purposes only, Mr. Hunt’s unvested awards were deemed cancelled and a new grant issued for his unvested shares with the value of these awards recalculated using a price of $136.00 per share, which was the opening stock price of the first day of trading following the public announcement of the CEO Transition. As a result of the Equity Modification, the Company recognized stock-based compensation expense for the modified awards of $22.4 million over the remaining requisite service period, which the Company determined to be between June 13, 2024 and September 1, 2024 and represented the remaining service period of Mr. Hunt’s role as CEO. The Company determined that the PSUs granted to Mr. Hunt in 2022 and 2023 should be accounted for as a Type IV accounting modification (improbable to improbable) in accordance with ASC 718, because vesting conditions before and after June 12, 2024 were improbable of being achieved. Stock Issued for Earnout Payment In April 2025, the Company issued 52,935 shares of its common stock to former securityholders of Avitide to satisfy the final contingent consideration obligation established under the Agreement and Plan of Merger and Reorganization (the “Avitide Agreement”) which the Company entered into as part of the acquisition of Avitide in September 2021. Additionally, in April 2025, the Company issued 5,517 shares of its common stock to former securityholders of FlexBiosys, Inc. (“FlexBiosys”) to satisfy the final contingent consideration obligation established under the Equity Purchase Agreement (the “FlexBiosys Agreement”), which the Company entered into as part of the acquisition of FlexBiosys in April 2023. In April 2024, the Company issued 28,638 shares of its common stock to former securityholders of Avitide to satisfy the contingent consideration obligation established under the Avitide Agreement which the Company entered into as part of the acquisition of Avitide in September 2021. In March 2024, the Company issued 2,770 shares of its common stock to former securityholders of FlexBiosys to satisfy the contingent consideration obligation established under the FlexBiosys Agreement, which the Company entered into as part of the acquisition of FlexBiosys in April 2023. In May 2023, the Company issued 42,621 shares of its common stock to former securityholders of Avitide to satisfy the contingent consideration obligation established under the Agreement and Plan of Merger and Reorganization which the Company entered into as part of the Avitide Acquisition. Stock-Based Compensation The following table presents stock-based compensation expense in the Company’s consolidated statements of comprehensive income or loss:
|  | Year Ended December 31, |
|  | 2025 |  |  | 2024 |  |  | 2023 |
|  | (Amounts in thousands) |
Cost of goods sold |  | $ | 2,682 |  |  | $ | 1,948 |  |  | $ | 1,933 |
Research and development |  |  | 5,015 |  |  |  | 3,227 |  |  |  | 2,855 |
Selling, general and administrative(1) |  |  | 24,908 |  |  |  | 42,895 |  |  |  | 20,787 |
Total stock-based compensation |  | $ | 32,605 |  |  | $ | 48,070 |  |  | $ | 25,575 |
(1) Selling, general and administrative stock-based compensation for the year ended December 31, 2024, includes $22.4 million of expense related to the Equity Modification discussed above. Stock Options The Company uses the Black-Scholes option pricing model to calculate the fair value of stock option awards on the grant date, and measures stock-based compensation costs of stock options at the grant date based on the estimated fair value of the award. The Company recognizes expense on awards with service-based vesting over the employee’s requisite service period on a straight-line basis. The Company recognizes stock-based compensation expense for options that are ultimately expected to vest, and accordingly, such compensation expense has been adjusted for estimated forfeitures. Information regarding option activity for the year ended December 31, 2025, under the Plans is summarized below:
|  | Shares |  |  | Weighted average exercise price |  |  | Weighted- Average Remaining Contractual Term (in Years) |  |  | Aggregate Intrinsic Value (in Thousands) |
Options outstanding at December 31, 2024 |  |  | 596,206 |  |  | $ | 98.64 |  |  |  |  |  |  |
Granted |  |  | 63,420 |  |  |  | 141.38 |  |  |  |  |  |  |
Exercised |  |  | (78,074 | ) |  |  | 40.68 |  |  |  |  |  | $ | 8,225 |
Forfeited/expired/cancelled |  |  | (18,279 | ) |  |  | 200.56 |  |  |  |  |  |  |
Options outstanding at December 31, 2025 |  |  | 563,273 |  |  | $ | 108.18 |  |  |  | 5.17 |  |  | $ | 34,877 |
Options exercisable at December 31, 2025 |  |  | 363,976 |  |  | $ | 103.55 |  |  |  | 4.42 |  |  | $ | 24,680 |
Vested and expected to vest at December 31, 2025(1) |  |  | 558,404 |  |  | $ | 107.80 |  |  |  | 5.14 |  |  | $ | 34,802 |
(1) Represents the number of vested options as of December 31, 2025 plus the number of unvested options expected to vest as of December 31, 2025, based on the unvested outstanding options at December 31, 2025 adjusted for estimated forfeiture rates of 8% for awards granted to non-executive level employees and 3% for awards granted to executive level employee s. The aggregate intrinsic value in the table above represents the total pre-tax intrinsic value that would have been received by the option holders had all option holders exercised their options on December 31, 2025. The aggregate intrinsic value of stock options exercised during the years ended December 31, 2025, 2 024 and 2023 was $8.2 million, $10.4 m illion and $5.8 million, respectively. The weighted average grant date fair value of options granted during the years ended December 31, 2025, 2024 and 2023 was $73.38, $88.00 and $84.37, respectively. Stock Units The fair value of stock units is calculated using the closing price of the Company’s common stock on the date of grant. The Company recognizes expense on awards with service-based vesting over the employee's requisite service period on a straight-line basis. The Company recognizes expense on performance-based awards over the vesting period based on the probability that the performance metrics will be achieved. Information regarding stock unit activity, which includes activity for restricted stock units and performance stock units, for the year ended December 31, 2025 under the Plans is summarized below:
|  | Shares |  |  | Weighted Average Grant Date Fair Value |
Unvested at December 31, 2024 |  |  | 470,612 |  |  | $ | 162.33 |
Awarded |  |  | 294,537 |  |  |  | 144.73 |
Vested |  |  | (156,115 | ) |  |  | 164.37 |
Forfeited/cancelled |  |  | (53,987 | ) |  |  | 172.86 |
Unvested at December 31, 2025 |  |  | 555,047 |  |  | $ | 152.80 |
Vested and expected to vest at December 31, 2025(1) |  |  | 500,406 |  |  | $ | 152.00 |
(1) Represents the number of vested stock units as of December 31, 2025, plus the number of unvested stock units expected to vest as of December 31, 2025 based on the unvested outstanding stock units at December 31, 2025 adjusted for estimated forfeiture rates of 8% for awards granted to non-executive level employees and 3% for awards granted to executive level employees. The aggregate intrinsic value of stock units vested during the years ended December 31, 2 025, 2024 and 2023 was $23.2 million, $26.7 million and $35.7 million, respectively. The total fair value of stock units that vested during the years ended December 31, 2025, 2024 and 2023 was $25.7 million, $22.0 million and $26.2 million, respectively. As of December 31, 2025, there w as $63.7 million of total unrecognized compensation cost, inclusive of stock options and stock units, related to unvested share-based awards. This cost is expected to be recognized over a weighted average remaining requisite service period of 2.6 years.

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