Employee Stock Plans | Note 12. Employee Stock Plans Equity Incentive Plans In March 2018, the Company’s board of directors adopted and its stockholders approved the 2018 Equity Incentive Plan (2018 Plan). The 2018 Plan authorizes the award of stock options, restricted stock awards, stock appreciation rights, RSUs, performance awards, and stock bonuses. As of April 30, 2018, approximately 8.8 million shares of Class A common stock were reserved and available for issuance under the 2018 Plan. In addition, as of April 30, 2018, 17.7 million options and RSUs exercisable or settleable for Class B common stock were outstanding in the aggregate under the Company’s 2006 Stock Plan (2006 Plan) and 2015 Equity Incentive Plan (2015 Plan), which plans were terminated in May 2015 and April 2018, respectively. The 2006 Plan and 2015 Plan continue to govern outstanding equity awards granted thereunder. Stock Options The following table summarizes stock option activity and related information is as follows (in thousands except exercise price and contractual term): Shares Weighted Average Aggregate Balance as of January 31, 2018 15,401 $ 3.56 7.91 $ 83,322 Granted 3,550 7.94 — Exercised (1,968 ) 2.94 — 12,003 Forfeited (139 ) 4.88 — Balance as of April 30, 2018 16,844 4.55 8.23 247,813 Exercisable as of April 30, 2018 16,067 4.50 8.18 237,074 Vested and expected to vest as of April 30, 2018 14,657 4.40 8.11 217,787 The weighted average grant date fair value of options granted during the three months ended April 30, 2018 and 2017 was $6.75 and $1.42 respectively. The aggregate intrinsic value of options exercised during the three months ended April 30, 2018 and 2017 was $12.0 million and $1.3 million, respectively. As of April 30, 2018, there was $29.6 million of unrecognized compensation cost related to unvested stock options, which is expected to be recognized over the next 3.26 years. The Company used the Black-Scholes option-pricing model to estimate the fair value of its stock options granted with the following assumptions: Three Months Ended April 30, 2018 2017 Fair value of common stock $ 12.28 $ 3.28 - 3.58 Expected volatility 39.23% - 40.86% 40.00% - 42.62% Expected term (years) 5.06 - 6.44 5.14 - 6.99 Risk-free interest rate 2.62% - 2.73% 1.89% - 2.26% Expected dividend yield — — Options Subject to Early Exercise At the discretion of the board of directors, certain options may be exercisable immediately at the date of grant but are subject to a repurchase right, under which the Company may buy back any unvested shares at the lower of their original exercise price or then current fair market value in the event of an employee’s termination prior to vesting. The consideration received for an exercise of an unvested option is considered to be a deposit of the exercise price and the related dollar amount is recorded as a liability. The liabilities are reclassified into equity as the awards vest. As of April 30, 2018 and January 31, 2018, the Company had $1.6 million and $0.7 million, respectively, recorded in accrued expenses and other current liabilities, and other long-term liabilities, related to early exercises of options to acquire 0.4 million and 0.2 million shares of Class B common stock, respectively. Restricted Stock and RSU Activity The Company did not grant any RSUs or restricted stock during the three months ended April 30, 2018. As of April 30, 2018, there was $10.7 million of unrecognized compensation cost related to unvested RSUs and restricted stock, which is expected to be recognized over the next 2.27 years. 2018 Employee Stock Purchase Plan In March 2018, the Company adopted the 2018 Employee Stock Purchase Plan (ESPP), which became effective on the date of the Prospectus. The ESPP initially reserved and authorized the issuance of up to a total of 2.4 million shares of Class A common stock to participating employees. The initial offering period began April 11, 2018 and will end on June 14, 2020 with purchase dates of December 14, 2018, June 14, 2019, December 14, 2019 and June 14, 2020. Except for the initial offering period, the ESPP provides for 24-month six-month As of April 30, 2018, there was approximately $6.0 million of unrecognized stock-based compensation expense related to the ESPP that is expected to be recognized over the remaining term of the initial offering period. The Company estimated the fair value of ESPP purchase rights using a Black-Scholes option pricing model with the following assumptions: Three Months Ended Fair value of common stock $ 14.00 Expected volatility 26.64% - 29.93% Expected term (in years) 0.68 - 2.18 Risk-free interest rate 2.01% - 2.36% Expected dividend yield — Stock-Based Compensation Expense Stock-based compensation expense was recorded in the following cost and expense categories in the Company’s unaudited condensed consolidated statements of comprehensive loss (in thousands): Three Months Ended 2018 2017 Cost of subscription revenue $ 323 $ 88 Cost of professional services revenue 1,031 140 Research and development 1,048 329 Sales and marketing 1,590 406 General and administrative 609 191 Total stock-based compensation expense $ 4,601 $ 1,154 |