v3.25.4

Stock-Based Compensation and Employee Benefit Plans | 12 Months Ended
--- | ---
Dec. 31, 2025
Compensation Related Costs [Abstract] |
Stock-Based Compensation and Employee Benefit Plans | Stock-Based Compensation and Employee Benefit Plans Share-based grants are designed to reward employees for their long-term contributions to us and provide incentives for them to remain with us. 2012 Equity Incentive Plan Our 2012 Equity Incentive Plan (the “2012 Plan”) was approved in August 2012. The 2012 Plan provided for the grant of incentive stock options, non-statutory stock options, stock appreciation rights and RSUs, all of which may be granted to employees, including officers, and to non-employee directors and consultants except we may grant incentive stock options only to employees. Grants under the 2012 Plan generally vest ratably over a four-year period from the vesting commencement date and expire ten years from the grant date. As of December 31, 2025 and 2024, stock options to purchase of 2,110,523 and 3,691,919 shares of Class A common stock were outstanding with a weighted average exercise price of $25.67 and $27.38 per share, respectively, and no shares were available for future grant. The 2012 Equity Incentive Plan has been canceled but continues to govern outstanding option grants under the 2012 Plan. 2018 Equity Incentive Plan The 2018 Equity Incentive Plan (the “2018 Plan”) was approved in April 2018. The 2018 Plan became effective upon our initial public offering (“IPO”) and serves as the successor to the 2012 Plan. The 2018 Plan authorizes the award of stock options, restricted stock awards, stock appreciation rights, RSUs, PSUs and stock bonuses. The 2018 Plan provides for the grant of awards to employees, directors, consultants, independent contractors and advisors provided the consultants, independent contractors, directors and advisors render services not in connection with the offer and sale of securities in a capital-raising transaction. The exercise price of stock options is at least equal to the fair market value of Class A common stock on the date of grant. Grants under the 2018 Plan generally vest ratably over three or four years from the vesting commencement date and expire ten years from the grant date. The 2018 Plan allows for an annual increase on January 1, of each of 2019 through 2028, by the lesser of (a) four percent (4%) of the number of Class A common stock and common stock equivalents (including options, RSUs, warrants and preferred stock on an as-converted basis) issued and outstanding on each December 31 immediately prior to the date of increase, and (b) such number of shares determined by the Board of Directors. As of December 31, 2025 and 2024, stock options to purchase 3,925,002 and 3,740,902 shares of Class A common stock were outstanding, respectively, with a weighted average exercise price of $10.15 and $10.14 per share, respectively. As of December 31, 2025 and 2024, 12,292,948 and 12,896,465 RSUs and PSUs that may be settled for Class A common stock, which were granted pursuant to the 2018 Plan, respectively, were outstanding. As of December 31, 2025 and 2024, we had 39,709,996 and 35,263,475 shares reserved for issuance under the 2018 Plan, respectively. Stock-Based Compensation Expense The following table summarizes the components of stock-based compensation expense in the consolidated statements of operations (in thousands):
|  |  |  | Years Ended December 31,
|  |  |  |  |  | 2025 |  | 2024 |  | 2023
Cost of revenue |  |  |  |  |  | $ | 24,103 |  |  | $ | 16,579 |  |  | $ | 17,504 |
Research and development |  |  |  |  |  | 32,861 |  |  | 22,150 |  |  | 27,620 |
Sales and marketing |  |  |  |  |  | 28,342 |  |  | 11,224 |  |  | 16,415 |
General and administrative |  |  |  |  |  | 59,709 |  |  | 33,042 |  |  | 25,556 |
|  |  |  |  |  | $ | 145,015 |  |  | $ | 82,995 |  |  | $ | 87,095 |
During the years ended December 31, 2025, 2024 and 2023, stock-based compensation expense capitalized on inventory and deferred cost of goods sold was immaterial. Stock Option and Stock Award Activity Stock Options The following table summarizes the stock option activity under our stock plans during the reporting period:
|  | Outstanding Options
|  | Number of Shares |  | Weighted Average Exercise Price |  | Remaining Contractual Life (Years) |  | Aggregate Intrinsic Value
|  |  |  |  |  |  |  | (in thousands)
Balances at December 31, 2023 |  | 7,247,624 |  |  | $ | 20.93 |  |  | 3.8 |  | $ | 19,446 |
Exercised |  | (307,857) |  |  | 7.01 |  |  |  |  |
Granted |  | 1,364,348 |  |  | 9.96 |  |  |  |  |
Forfeited / Expired |  | (871,294) |  |  | 27.45 |  |  |  |  |
Balances at December 31, 2024 |  | 7,432,821 |  |  | 18.72 |  |  | 4.1 |  | 53,453 |
Exercised |  | (2,098,714) |  |  | 22.91 |  |  |  |  |
Granted |  | 111,504 |  |  | 22.37 |  |  |  |  |
PSOs adjustment |  | 524,879 |  |  | — |  |  |  |  |
Forfeited / Expired |  | (229,207) |  |  | 30.60 |  |  |  |  |
Balances at December 31, 2025 |  | 5,741,283 |  |  | 15.92 |  |  | 4.5 |  | 406,957 |
Vested and expected to vest at December 31, 2025 |  | 5,505,251 |  |  | 16.14 |  |  | 4.3 |  | 389,488 |
Exercisable at December 31, 2025 |  | 4,405,059 |  |  | $ | 17.58 |  |  | 3.3 |  | $ | 305,310 |
During the years ended December 31, 2025, 2024 and 2023, we recognized $5.3 million, $3.2 million and $0.4 million of stock-based compensation costs for stock options, respectively. During the year ended December 31, 2025, we granted 111,504 stock options, including 100,000 performance-based stock options (“PSOs”) issued to a non-executive employee, which are subject to vesting upon achievement of specified corporate milestones. During the year ended December 31, 2024, we granted 1,364,348 stock options, including 1,135,000 PSOs issued to certain executive. We did not grant stock options in the year ended December 31, 2023. PSOs have a 10-year term, an exercise price equal to the fair market value of our Class A common stock on the date of grant, and vest either at the end of three-year performance period, or over a three- or four-year requisite service period. We used the following weighted-average assumptions in applying the Black-Scholes valuation model for determination of the stock options valuation:
|  | Years Ended December 31,
|  | 2025 |  | 2024 |  |
Risk-free interest rate |  | 3.9% - 4.1% |  | 3.7% - 4.4% |  |
Expected term (years) |  | 6.1 |  | 6.0 |  |
Expected dividend yield |  | — |  | — |  |
Expected volatility |  | 93.4% - 93.9% |  | 95.3% - 97.1% |  |
During the years ended December 31, 2025, 2024 and 2023, the intrinsic value of stock options exercised was $78.3 million, $2.1 million and $3.6 million, respectively. As of December 31, 2025 and 2024, we had unrecognized compensation costs related to unvested stock options of $5.1 million and $7.2 million, respectively. This cost is expected to be recognized over the remaining weighted-average period of 1.3 years and 2.1 years, respectively. Cash received from stock options exercised totaled $47.8 million, $2.0 million and $3.6 million and for the years ended December 31, 2025, 2024 and 2023, respectively. Stock Awards A summary of our stock awards activity and related information is as follows:
|  | Number of Awards Outstanding |  | Weighted Average Grant Date Fair Value
Unvested Balance at December 31, 2023 |  | 9,889,341 |  |  | $ | 18.25 |
Granted |  | 8,574,481 |  |  | 15.66 |
Vested |  | (3,067,129) |  |  | 19.61 |
Forfeited |  | (1,350,228) |  |  | 18.60 |
Cancelled |  | (1,150,000) |  |  | 17.44 |
Unvested Balance at December 31, 2024 |  | 12,896,465 |  |  | $ | 16.29 |
Granted |  | 5,685,777 |  |  | 35.08 |
Vested |  | (5,184,791) |  |  | 14.86 |
Forfeited |  | (1,104,503) |  |  | 14.55 |
Unvested Balance at December 31, 2025 |  | 12,292,948 |  |  | $ | 25.74 |
The estimated fair value of RSUs and PSUs is based on the fair value of our Class A common stock on the date of grant. For the years ended December 31, 2025, 2024 and 2023, we recognized $125.1 million, $70.1 million and $71.2 million of stock-based compensation costs for stock awards, respectively. As of December 31, 2025 and 2024, we had $277.1 million and $161.8 million of unrecognized stock-based compensation cost related to unvested stock awards, expected to be recognized over a weighted average period of 2.0 years and 2.2 years, respectively. Executive Awards Fiscal Year 2025 On February 18, May 13, August 28, November 10 and 17, 2025, the Company granted RSUs and PSUs to certain executive officers under the 2018 Plan (collectively, the “2025 Executive Awards”). The RSUs granted to certain executive officers are subject to time-based vesting conditions. These RSUs vest under one of two schedules: (1) 40% of the RSUs vest on the first anniversary of the vesting commencement date of March 15, 2025, with the remaining 60% vesting in equal quarterly installments over the subsequent two years; or (2) the RSUs vest over a four-year period, with 25% vesting on the first anniversary of the vesting commencement dates of December 15, 2024, and October 15, 2025, and the remaining 75% vesting in equal quarterly installments over the following three years. PSUs vest either (i) 100% at the end of a three-year performance period (cliff vesting), (ii) in three annual installments based on the achievement of performance targets for each year, or (iii) 50% at the end of the first performance period and 25% on each of the next two anniversaries of the first vesting date, all based on achievement of the applicable one-year performance targets, in each case subject to continued employment through the applicable vesting date(s). Stock-based compensation related to the 2025 Executive Awards is recognized over the three-year service period based on the estimated probability of achieving the performance conditions. As of December 31, 2025, the unamortized compensation expense for these RSUs and the PSUs was $19.9 million. Fiscal Year 2024 On December 18, 2024, the Company’s Board of Directors cancelled 1,150,000 PSU awards from the equity package the Chief Executive Officer (the “CEO”) received on May 12, 2021 (the “2021 PSUs”), under the 2018 Plan. The 2021 PSUs were cancelled due to the lack of their retention value and the change in the Company’s strategic goals. Also, on December 18, 2024, the Company’s Board of Directors granted the CEO replacement awards that included (1) a front-loaded three-year equity award consisting of: (i) 1,500,000 PSU awards and (ii) 500,000 RSU awards (the “2025 Equity Package”), and (2) a one-time award of 600,000 PSU awards (the “One-Time Grant”, and together with the 2025 Equity Package, the “Replacement Awards”). The 2025 Equity Package RSU awards have time-based vesting schedule of three years and started vesting on December 18, 2024. The performance criteria under the 2025 Equity Package PSU awards are equally weighted between product revenue growth and adjusted product gross margin. The CEO is eligible to receive up to 300% of the target PSUs under the 2025 Equity Package, which is intended to provide a meaningful retention incentive for the CEO over the next several years. The 2025 Equity Package PSUs have a three-year cliff performance vesting period. The One-Time Grant consists of two awards: (i) a grant of 300,000 PSUs that fully vested on December 18, 2024, and (ii) a grant of 300,000 PSUs that will be earned and vest following the Compensation and Organizational Development Committee’s certification that the CEO has achieved specific, objective criteria tied to strategic priorities prior to December 31, 2027. The maximum amount of shares the CEO can earn under the One-Time Grant is 600,000 shares of our Class A common stock. The cancellation of the 2021 PSUs accompanied by the concurrent grant of the Replacement Awards was accounted for as a modification of the terms of the cancelled award according to the ASC 718. On December 18, 2024, the Company determined the incremental compensation cost of $42.4 million measured as the excess of the fair value of the Replacement Awards over the fair value of the cancelled award immediately before the terms were modified. These compensation costs will be recognized over the requisite service period of the Replacement Awards. The total fair value of the Replacement Awards of $57.6 million measured at the date of a cancellation and replacement consisted of (1) the grant-date fair value of the original award for which the service has already been rendered and is expected to be rendered at that date, and (2) the incremental cost resulting from the cancellation and replacement. For the years ended December 31, 2025 and 2024,we recognized $64.4 million and $7.6 million of compensation costs related to the Replacement Awards, respectively. On March 1, 2024, the Company granted RSUs, PSUs, time-based and performance-based stock option awards to certain executive staff; on May 6, 2024, the Company granted RSUs and PSUs to new executive hires, including our new Chief Financial Officer; and on August 29, 2024, the Company granted additional performance-based stock option awards to our Chief Commercial Officer (collectively, the “2024 Executive Awards”), pursuant to the 2018 Plan. The RSUs have time-based vesting schedules that range from two to four years, and started vesting on February 15, 2024 (May 15, 2024, for new hires). The time-based stock options started vesting on February 15, 2024, and shall vest over three years. The PSUs have vesting schedules that range from one to three years. The performance-based stock options have vesting schedules that range from three to four years. Both the PSUs and the performance-based stock options have a threshold target for vesting of 50% of the number of awards, a target for 100% of earned awards and a maximum of 150% of granted awards earned, for each of the performance periods. The PSUs and performance-based stock options will vest based on a combination of time and achievement against performance metrics targets assuming continued employment and service through each vesting date. Stock-based compensation costs associated with the 2024 Executive Awards are recognized over the service period as we evaluate the probability of the achievement of the performance conditions. As of December 31, 2025 and 2024, the unamortized compensation expense for the RSUs, the PSUs, the time-based and the performance-based stock options per the 2024 Executive Awards and the Replacement Awards was $77.4 million and $66.8 million, respectively. Fiscal Year 2023 On February 15, 2023, and July 11, 2023, the Company granted RSU and PSU awards (the “2023 Executive Awards”) to certain executive staff pursuant to the 2018 Plan. The RSU awards have time-based vesting schedules, started vesting on February 15, 2023, and shall vest over a three-year period. The PSU awards which started vesting on February 15, 2023, have either a three-year or one-year cliff vesting period, and the PSU awards which started vesting on July 11, 2023, cliff vest on February 15, 2024. The PSU awards will vest based on a combination of time and achievement against performance metrics targets assuming continued employment and service through each vesting date. Stock-based compensation costs associated with the 2023 Executive Awards are recognized over the service period as we evaluate the probability of the achievement of the performance conditions. As of December 31, 2025 and 2024, the unamortized compensation expense for the 2023 Executive Awards was $0.6 million and $1.8 million, respectively. Fiscal Year 2022 In 2022, the Company granted RSU and PSU awards (the “2022 Executive Awards”) to certain executive staff, including our CEO, pursuant to the 2018 Plan. The RSUs have time-based vesting schedules. The PSUs consist of three vesting tranches during 2023-2025 with an annual vesting schedule based on the attainment of performance conditions related to fiscal year 2022 and assuming continued employment and service through each vesting date. Stock-based compensation costs associated with the 2022 Executive Awards are recognized over the service period. As of December 31, 2025 and 2024, the unamortized compensation expense for the 2022 Executive Awards was $0.3 million and $1.0 million, respectively. Actual compensation expense was determined by the attained performance condition of the PSUs in fiscal year 2022. Fiscal Year 2021 In 2021, the Company granted RSU and PSU awards (the “2021 Executive Awards”) to certain executive staff, other than our Chief Executive Officer, pursuant to the 2018 Plan. The RSUs have time-based vesting schedules. The PSUs consist of annual vesting tranches based on the attainment of performance conditions and assuming continued employment and service through each vesting date. Stock-based compensation costs associated with the 2021 Executive Awards are recognized over the service period as we evaluate the probability of the achievement of the performance conditions. In 2021, the Company also granted RSU and PSU awards to our CEO pursuant to the 2018 Plan. The RSUs vest in equal annual installments over five years from the grant date. A portion of the PSUs can be earned based on achieving certain financial performance goals and another portion can be earned based upon achieving certain progressive stock price hurdles. Any shares issued under the PSU awards are subject to a two-year post-vest holding period in which the award holder is restricted from selling any shares (net of shares settled for taxes). Actual compensation expense is dependent on the performance of the PSUs that vest based upon a performance condition. We estimated the fair value of the PSUs that vest based on a market condition on the date of grant using a Monte Carlo simulation with the following assumptions: (i) expected volatility of 71.2%, (ii) risk-free interest rate of 1.6%, and (iii) no expected dividend yield. On December 18, 2024, the Company cancelled 1,150,000 PSU awards from the 2021 Executive Awards and replaced them with the 2025 Equity Package (refer to section Fiscal Year 2024 above for details). As of December 31, 2025 and 2024, the unamortized compensation expense for 2021 Executive Awards was $0.6 million, and $3.7 million, respectively. The following table presents the stock activity and the total number of shares available for grant under our stock plans:
|  | Plan Shares Available for Grant
Balances at December 31, 2023 |  | 32,877,906 |
Added to plan |  | 9,674,114 |
Granted |  | (9,933,957) |
Cancelled/Forfeited |  | 3,371,522 |
Expired |  | (726,110) |
Balances at December 31, 2024 |  | 35,263,475 |
Added to plan |  | 9,978,870 |
Granted |  | (6,651,789) |
Cancelled/Forfeited |  | 1,333,697 |
Expired |  | (214,257) |
Balances at December 31, 2025 |  | 39,709,996 |
2018 Employee Stock Purchase Plan In April 2018, we adopted the 2018 ESPP. The 2018 ESPP became effective upon our IPO in July 2018. The 2018 ESPP is intended to qualify under Section 423 of the Internal Revenue Code. The aggregate number of our shares that may be issued over the term of our ESPP is 33,333,333 Class A common stock. A total of 3,333,333 shares of our Class A common stock were initially reserved for issuance under the plan. The number of shares reserved for issuance under the 2018 ESPP will increase automatically on the 1st day of January of each of the first nine years following the first offering date by the number of shares equal to one percent (1%) of the total number of Class A common stock, Class B common stock (automatically converted to Class A common stock on July 27, 2023) and common stock equivalents (including options, RSUs, warrants and preferred stock on an as converted basis) issued and outstanding on the immediately preceding December 31 (rounded down to the nearest whole share); provided, that the Board of Directors or the Compensation Committee may in its sole discretion reduce the amount of the increase in any particular year. The 2018 ESPP allows eligible employees to purchase shares, subject to purchase limits of 2,500 shares during each six-month period or $25,000 worth of stock for each calendar year, of our Class A common stock through payroll deductions at a price per share equal to 85% of the lesser of the fair market value of our Class A common stock (i) on the first trading day of the applicable offering date and (ii) the last trading day of each purchase date. During the years ended December 31, 2025, 2024 and 2023, we recognized $9.8 million, $5.9 million and $15.5 million of stock-based compensation costs for the 2018 ESPP, respectively. We issued 1,073,929, 1,049,955 and 875,695 shares in the years ended December 31, 2025, 2024 and 2023, respectively. During the years ended December 31, 2025, 2024 and 2023, we added an additional 2,494,717, 2,418,528 and 2,239,563 shares, respectively. There were 17,993,945 and 16,573,157 shares available for issuance as of December 31, 2025 and 2024, respectively. As of December 31, 2025 and 2024, we had $8.6 million and $5.9 million of unrecognized stock-based compensation costs, expected to be recognized over a weighted average period of 0.6 years and 0.8 years, respectively. We used the following weighted-average assumptions in applying the Black-Scholes valuation model for determination of the 2018 ESPP share valuation:
|  | Years Ended December 31,
|  | 2025 |  | 2024 |  | 2023 |  |
Risk-free interest rate |  | 3.8% - 5.0% |  | 4.1% - 5.6% |  | 4.9% - 5.6% |  |
Expected term (years) |  | 0.5 - 2.0 |  | 0.5 - 2.0 |  | 0.5 - 2.0 |  |
Expected dividend yield |  | — |  | — |  | — |  |
Expected volatility |  | 66.2% - 115.2% |  | 54.1% - 78.7% |  | 54.1% - 74.1% |  |

X
- Definition The entire disclosure for an entity's employee compensation and benefit plans, including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, share-based compensation, life insurance, severance, health care, unemployment and other benefit plans. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/715/tableOfContent Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 712 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/712/tableOfContent Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 710 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/710/tableOfContent Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 718 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/718/tableOfContent + Details
Name: | us-gaap_CompensationAndEmployeeBenefitPlansTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CompensationRelatedCostsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration