Employee Benefit Plans | EMPLOYEE BENEFIT PLANS Stock Incentive Plans Our 2021 Stock Incentive Plan (the “2021 Plan”) provides for the granting of incentive and non-statutory stock options, RSUs, PSUs, and other equity-based awards. Pursuant to our 2021 Employee Stock Purchase Plan (the “ESPP”), eligible employees may purchase shares of our common stock through payroll deductions at 85% percent of the lower of the market price of our common stock on the date of commencement of the applicable offering period or on the last day of each six-month purchase period. As of June 30, 2024, 17,018,890 shares and 5,352,623 shares of our common stock were reserved for future issuance under the 2021 Plan and ESPP. During the three months ended June 30, 2024, we began reissuing shares of our common stock from treasury stock to settle stock option exercises, vesting of RSUs, and ESPP purchases. Stock Options We grant stock options at prices equal to the grant date fair value. Typically, these stock options expire ten years from the grant date and vest ratably over a four-year service period. Stock option activity for the six months ended June 30, 2024 was as follows: Number of Weighted- Weighted- Aggregate Balance—December 31, 2023 11,165,138 $ 7.03 5.22 $ 142,444 Exercised (1,686,789) 3.27 Canceled (85,343) 14.25 Balance—June 30, 2024 9,393,006 $ 7.64 5.12 $ 18,655 Options vested 8,390,995 $ 6.57 4.79 $ 18,655 RSUs and PSUs RSU grants have a service-based vesting condition, which is satisfied generally either (i) over four years with a 25% cliff vesting period after one year and 6.25% vesting each quarter thereafter for new hires, or (ii) over four years with 6.25% vesting each quarter for new grants to existing employees. The related stock-based compensation expense is recognized on a straight-line basis over the requisite service period. In March 2024, we granted PSUs to certain executives under the 2021 Plan. PSU grants have both performance and service-based vesting conditions. The ultimate number of units that will vest is determined based on the achievement of annual revenue against a pre-established target (with defined threshold and maximum amounts ranging from 50% to 150% of target). If annual revenue is below the threshold amount, none of the PSUs will vest. If annual revenue is equal to or exceeds the threshold amount, 25% of the PSUs ultimately granted will vest after one year, and the remaining PSUs will vest quarterly (6.25%) over the subsequent three years. The fair value of each unit is determined on the grant date, and the related stock-based compensation expense is recognized using the accelerated attribution method. We evaluate the vesting conditions on a quarterly basis and recognize stock-based compensation expense if the achievement of the performance condition is probable. RSU and PSU activity for the six months ended June 30, 2024 was as follows: RSUs PSUs Number of Weighted-Average Aggregate Number of Weighted-Average Aggregate Unvested balance—December 31, 2023 18,361,046 $ 15.24 $ 355,653 — $ — $ — Granted (1) 6,351,515 13.35 300,416 14.36 Vested (4,036,128) 16.06 — Forfeited (1,555,099) 14.82 — Unvested balance—June 30, 2024 19,121,334 $ 14.47 $ 136,909 300,416 $ 14.36 $ 2,151 (1) For PSUs, the amount presented as the number of units granted is based on the performance condition being achieved at the target level. Once the performance period is complete, the number of units that will vest may range from 0% to 150% of the target amount based on actual performance. Stock-Based Compensation Expense Stock-based compensation expense is classified in the Condensed Consolidated Statements of Operations (Unaudited) as follows: Three Months Ended June 30, Six Months Ended June 30, 2024 2023 2024 2023 Cost of revenue $ 710 $ 914 $ 1,369 $ 1,791 Research and development 10,873 13,303 21,874 26,768 Sales and marketing 8,520 7,499 16,442 15,856 General and administrative 9,913 7,609 18,188 15,240 Restructuring related charges — (17) — (5,605) Total $ 30,016 $ 29,308 $ 57,873 $ 54,050 We capitalized $2,256 and $2,294 of stock-based compensation related to our internal-use software during the three months ended June 30, 2024 and 2023 and $4,090 and $3,605 during the six months ended June 30, 2024 and 2023. The table below presents unrecognized employee compensation cost related to unvested shares and the weighted-average period over which it is expected to be recognized as of June 30, 2024: June 30, 2024 Unrecognized employee compensation cost related to unvested shares Weighted-average period over which the compensation is expected to be recognized RSUs $ 239,047 2.6 Common stock options 9,496 2.0 ESPP Rights 8,141 1.1 PSUs 3,134 1.9 Common Stock Reserved for Issuance The following table presents total shares of our common stock reserved for future issuance: June 30, 2024 December 31, 2023 RSUs outstanding 19,121,334 18,361,046 Stock options outstanding 9,393,006 11,165,138 PSUs outstanding 300,416 — Shares available for future grants 22,371,513 16,913,085 Total shares of common stock reserved 51,186,269 46,439,269 401(k) Plan We have a 401(k) savings plan that provides for a discretionary employer-matching contribution. We made matching contributions of $530 and $604 to the plan for the three months ended June 30, 2024 and 2023 and $1,384 and $1,460 for the six months ended June 30, 2024 and 2023. |