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STOCKHOLDERS' EQUITY
6 Months Ended
Jun. 30, 2026
Share-Based Payment Arrangement [Abstract]  
STOCKHOLDERS' EQUITY STOCKHOLDERS’ EQUITY
2021 Equity Incentive Plan
In May 2021, the Company’s board of directors (the “Board”) adopted, and the stockholders approved, the 2021 Equity Incentive Plan (the “2021 Plan”) with the purpose of granting stock-based awards, including stock options, stock appreciation rights, restricted stock awards, RSUs, PSUs, and other forms of awards, to employees, directors, and consultants. As of December 31, 2025, a total of 59,355,916 shares of common stock were authorized for issuance under the 2021 Plan. The number of shares of the Company’s common stock reserved for issuance under the 2021 Plan automatically increases on January 1 of each calendar year, starting on January 1, 2022 through January 1, 2031, in an amount equal to either (i) 5% of the total number of shares of the Company’s common stock outstanding on December 31 of the fiscal year before the date of each automatic increase, or (ii) a lesser number of shares determined by the Board prior to the applicable January 1. Accordingly, on January 1, 2026, the number of shares of common stock that may be issued under the 2021 Plan increased by an additional 7,585,428 shares. As a result, as of June 30, 2026, a total of 66,941,344 shares of common stock are authorized for issuance under the 2021 Plan. As of June 30, 2026, a total of 43,123,751 shares of common stock were available for issuance under the 2021 Plan. No stock options have been issued under the 2021 Plan.
Stock options
No stock options were granted during the periods presented.
The following table summarizes the stock option activity during the six months ended June 30, 2026:
Number of
Shares
Weighted-
Average
Exercise Price
Outstanding at December 31, 20252,064,273$13.05 
Exercised(531,931)8.30 
Cancelled/Forfeited(509)19.23 
Outstanding at June 30, 20261,531,83314.70 
Exercisable at June 30, 20261,531,833$14.70 
As of June 30, 2026, there is no unrecognized stock-based compensation cost for stock options previously granted by the Company.
Restricted stock units
Service-based restricted stock units
In 2018, the Company began issuing RSUs to certain employees, officers, non-employee consultants, and directors. All of the RSUs granted subsequent to the Company’s initial public offering (“IPO”) vest based solely on continued service, which is generally over three or four years, on either a quarterly or annual vesting schedule.
The following table summarizes the RSU activity during the six months ended June 30, 2026:
Number of
Shares
Weighted-
Average Grant
Date Fair Value
Outstanding at December 31, 20256,431,468$68.18 
Granted3,364,13157.10 
Vested(1,620,194)64.80 
Canceled/Forfeited(830,113)67.02 
Outstanding at June 30, 20267,345,292$63.98 
As of June 30, 2026, the total unrecognized stock‑based compensation cost for all RSUs outstanding was $431.6 million, which is expected to be recognized over a weighted‑average vesting period of 2.5 years.
Performance-based restricted stock units
Operating and financial performance-based restricted stock units
In 2022, the Company began granting PSUs to certain non-executive employees with vesting terms based on the achievement of certain operating and financial performance goals. In 2024, the Company began granting PSUs to certain executive employees with vesting terms based on the achievement of certain operating performance goals. Such PSUs are also subject to employees’ continued service through the applicable vesting dates. The grant date fair value per share for PSUs is equal to the closing stock price of the Company’s common stock on the market date prior to the grant date.
The grant date fair value for PSUs is recognized as compensation expense using a graded vesting attribution model. No expense is recognized for PSUs until that condition is probable of being met, therefore the portion of expense recognized in any period may fluctuate depending on changing estimates of the achievement of the performance conditions. Forfeitures are recorded when they occur.
Market based restricted stock units
In 2025, the Company began granting market-based PSUs ("MSUs"), with vesting terms that are subject to a market condition and will vest based on the Company’s total shareholder return (“TSR”) performance relative to the TSR of the other companies that comprise the S&P Completion Index (CI) Information Technology. Such MSUs are also subject to employees’ continued service through the applicable vesting dates. To determine the fair value of MSUs on the date of grant, the Company utilizes a Monte Carlo simulation with the following assumptions:
Risk-free interest rate
3.55% to 3.77%
Expected term (in years)
3.0 to 3.1
Estimated dividend yield
0.00%
Estimated weighted-average volatility
42.75% to 43.51%
The Company estimates volatility for MSUs based on the historical volatility of its own common stock price. The interest rate is derived from government bonds with a term equal to the longest simulation term. The Company has not declared, nor does it expect to declare, dividends in the foreseeable future. Consequently, an expected dividend yield of zero is utilized.
The grant date fair value for MSUs is recognized as compensation expense using a graded vesting attribution model. The expense recognized for MSUs is not adjusted for final projected payout of the awards. Forfeitures are recorded when they occur.
The following table summarizes the PSU and MSU activity during the six months ended June 30, 2026:
Number of
Shares
Weighted-
Average Grant
Date Fair Value
Outstanding at December 31, 2025605,053$103.05 
Granted (1)
636,03590.45 
Vested(72,873)73.77 
Canceled/Forfeited(6,424)79.16 
Outstanding at June 30, 20261,161,791$98.12 
(1) This represents awards granted at 100% attainment of the performance conditions.
As of June 30, 2026, the total unrecognized stock‑based compensation cost for all PSUs outstanding was $90.4 million, which is expected to be recognized over a weighted‑average vesting period of 2.6 years.
Employee Stock Purchase Plan
In May 2021, the Board adopted, and the stockholders approved, the 2021 Employee Stock Purchase Plan (the “ESPP”), which became effective immediately prior to the effective date of the Company’s IPO. As of December 31, 2025, a total of 8,278,659 shares of common stock had been reserved for issuance under the ESPP. The number of shares of the Company’s common stock reserved for issuance under the ESPP automatically increases on January 1 of each year for a period of 10 years, beginning on January 1, 2022 and continuing through January 1, 2031, by the lesser of (i) 1% of the total number of shares of the Company’s common stock outstanding on December 31 of the immediately preceding year; and (ii) 3,900,000 shares,
except before the date of any such increase, the Board may determine that such increase will be less than the amount set forth in clauses (i) and (ii). Accordingly, on January 1, 2026, the number of shares of common stock reserved under the ESPP increased by an additional 1,517,085 shares.
The offering periods are scheduled to start in May and November of each year. The ESPP provides for consecutive offering periods that will typically have a duration of 12 months in length and comprise two purchase periods of six months in length, subject to reset and rollover provisions.
The ESPP provides eligible employees with an opportunity to purchase shares of the Company’s common stock through payroll deductions of up to 15% of their eligible compensation, subject to a maximum of $25,000 of stock per calendar year. A participant may purchase a maximum of 2,500 shares of common stock during a purchase period. Amounts deducted and accumulated by the participant are used to purchase shares of common stock at the end of each six-month purchase period. The purchase price of the shares will be 85% of the lower of the fair market value of the common stock on (i) the first trading day of the applicable offering period and (ii) the last trading day of each purchase period in the related offering period. However, in the event the fair value of the common stock on the purchase date is lower than the fair value on the first trading day of the offering period, the offering period is terminated immediately following the purchase and a new offering period begins the following day. Participants may end their participation at any time prior to the last 15 days of a purchase period and will be repaid their accrued contributions that have not yet been used to purchase shares of common stock. Participation ends automatically upon termination of employment.
The fair value of the ESPP purchase rights on the date of grant using the Black-Scholes option pricing model was estimated using the following assumptions during the six months ended June 30, 2026:
Risk-free interest rate
3.74% to 3.78%
Expected term (in years)
0.5 to 1.0
Estimated dividend yield0.00%
Estimated weighted-average volatility
46.99% to 52.77%
The term of the ESPP purchase rights is the offering period. The Company estimates volatility for ESPP purchase rights based on the historical volatility of its own common stock price. The interest rate is derived from government bonds with a similar term to the ESPP purchase right granted. The Company has not declared, nor does it expect to declare, dividends in the foreseeable future. Consequently, an expected dividend yield of zero was utilized. The fair value of the Company’s common stock used to value ESPP purchase rights is based on the trading price of its publicly traded common stock.
Employee payroll contributions accrued in connection with the ESPP were $3.6 million and $5.2 million as of June 30, 2026 and December 31, 2025, respectively, and are included within accrued expenses on the accompanying condensed consolidated balance sheets. Employee payroll contributions ultimately used to purchase shares will be reclassified to stockholders’ equity on the purchase date. Stock-based compensation expense related to the ESPP is recognized on a straight-line basis over the offering period. During the six months ended June 30, 2026 and 2025, the Company recognized stock-based compensation expense of $4.9 million and $5.1 million, respectively, in connection with the ESPP. During the six months ended June 30, 2026 and 2025, 330,571 and 245,276 shares of the Company’s common stock were purchased under the ESPP, respectively.
As of June 30, 2026, unrecognized stock-based compensation expense related to the ESPP was $8.7 million, which is expected to be recognized over a weighted-average period of 0.5 years.
Stock-based compensation
The Company recorded total stock-based compensation cost from stock options, RSUs, PSUs, and the ESPP as follows (in thousands):
Three Months Ended June 30,Six Months Ended June 30,
2026202520262025
Cost of revenue$2,556 $3,204 $5,175 $5,956 
Sales and marketing18,045 17,473 38,518 32,307 
Research and development21,989 21,230 40,537 39,602 
General and administrative14,166 13,670 29,526 25,991 
Total stock-based compensation expense$56,756 $55,577 $113,756 $103,856 
Stock-based compensation capitalized for software development and cloud-computing arrangement implementation costs4,798 5,060 9,135 9,183 
Total stock-based compensation cost$61,554 $60,637 $122,891 $113,039 
Stock repurchase program
On November 3, 2025, the Board authorized a stock repurchase program to repurchase up to $300.0 million of the Company’s outstanding common stock (the "2025 Stock Repurchase Program"). The Company intends to opportunistically repurchase shares of its common stock from time to time through the open market, or other transactions in accordance with applicable securities laws, in each case, subject to market conditions, applicable legal requirements, and other relevant factors. Open market repurchases may be structured to occur in accordance with the requirements of Rule 10b-18 of the Securities Exchange Act of 1934, as amended. The Company may also, from time to time, enter into Rule 10b5-1 trading plans to facilitate repurchases of its common stock under this authorization. The timing of stock repurchases and the actual number of shares repurchased will depend on a variety of factors, including price, general business and market conditions, and alternative investment opportunities, and will be subject to the discretion of the Company’s management within its authorization. The 2025 Stock Repurchase Program will be funded using the Company’s working capital. The 2025 Stock Repurchase Program does not obligate the Company to acquire any particular number of shares of the Company’s common stock, or any shares at all. The 2025 Stock Repurchase Program expires on November 3, 2026, and may be suspended or discontinued at any time at the Company’s discretion and without notice.
During the six months ended June 30, 2026, the Company repurchased and retired a total of 1,765,560 shares of the Company’s common stock at a weighted average per share price of $56.66 for an aggregate amount of $100.0 million, which includes the transaction costs associated with the repurchases but excludes the 1% excise tax on stock repurchases imposed by the Inflation Reduction Act of 2022.