NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(in thousands, except share and per share data, unless otherwise noted)

(unaudited)

1. Summary of Business and Significant Accounting Policies

Description of Business

Mimecast Limited (Mimecast or the Company) is a public limited company organized under the laws of the Bailiwick of Jersey on July 28, 2015 and is headquartered in London, England.

The principal activity of the Company is the provision of cloud security and risk management services for email and corporate information. The Company’s Email Security 3.0 and Cyber Resilience Extension offerings are designed to protect customers from today’s rapidly changing security environment. The Email Security 3.0 strategy addresses threats in three distinct zones: at the email perimeter (Zone 1); inside the network and the organization (Zone 2); and beyond the perimeter (Zone 3). The Company’s Cyber Resilience Extensions expand resilience to other critical elements of an organization’s digital infrastructure. The Company’s primary offerings include: email security; email continuity; email archiving; awareness training; web security; DMARC analyzer; and brand exploit protection. Mimecast operates principally in Europe, North America, Africa and Australia.

The Company is subject to a number of risks and uncertainties common to companies in similar industries and stages of development including, but not limited to, rapid technological changes, competition from substitute products and services from larger companies, customer concentration, management of international activities, protection of proprietary rights, patent litigation, and dependence on key individuals.

Basis of Presentation

The accompanying interim condensed consolidated financial statements are unaudited. These financial statements and notes should be read in conjunction with the audited consolidated financial statements for the year ended March 31, 2020 and related notes, together with management’s discussion and analysis of financial condition and results of operations, contained in the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission (SEC) on May 22, 2020.

The accompanying unaudited condensed consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (GAAP) for interim financial information, pursuant to the rules and regulations of the SEC. Accordingly, they do not include all of the financial information and footnotes required by GAAP for complete financial statements. In the opinion of management, the unaudited condensed consolidated financial statements and notes have been prepared on the same basis as the audited consolidated financial statements for the year ended March 31, 2020 contained in the Company’s Annual Report on Form 10-K and include all adjustments, consisting of normal recurring adjustments, necessary for a fair presentation of the Company’s financial position as of June 30, 2020, and for the three months ended June 30, 2020 and 2019. These interim periods are not necessarily indicative of the results to be expected for any other interim period or the full year.

The Company reclassified $0.3 million from proceeds from issuance of ordinary shares to tax withholding on employee share purchase plan purchases and vesting of restricted share units within its condensed consolidated statement of shareholders’ equity and condensed consolidated statement of cash flows for the three months ended June 30, 2019 to conform to current period presentation. These reclassifications had no impact on the Company’s previously reported results of operations or its balance sheets.

Principles of Consolidation

The condensed consolidated financial statements include the accounts of the Company and its subsidiaries. All intercompany transactions and balances have been eliminated in consolidation.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of income and expenses during the reporting period.

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Significant estimates relied upon in preparing these condensed consolidated financial statements include revenue recognition, variable consideration, valuation at fair value of assets acquired or sold, including intangible assets, goodwill, tangible assets, and liabilities assumed, amortization periods, expected future cash flows used to evaluate the recoverability of long-lived assets, contingent liabilities, determination of incremental borrowing rates, restructuring liabilities, expensing and capitalization of research and development costs for internal-use software, the determination of the fair value of share-based awards issued, the average period of benefit associated with costs capitalized to obtain revenue contracts and the recoverability of the Company’s net deferred tax assets and related valuation allowance.

Due to the global COVID-19 pandemic, there has been uncertainty and disruption in the global economy and financial markets. The Company is not aware of any specific event or circumstance that would require an update to its estimates or judgments or a revision of the carrying value of its assets or liabilities as of June 30, 2020. Although the Company regularly assesses these estimates, actual results could differ materially from these estimates. The Company bases its estimates on historical experience and various other assumptions that it believes to be reasonable under the circumstances. Actual results may differ from management’s estimates if these results differ from historical experience, or other assumptions do not turn out to be substantially accurate, even if such assumptions are reasonable when made. Changes in estimates are recorded in the period in which they become known.

Comprehensive Income (Loss)

Comprehensive income (loss) is defined as the change in equity of a business enterprise during a period from transactions, other events, and circumstances from non-owner sources. Comprehensive income (loss) consists of net income (loss) and other comprehensive income, which includes certain changes in equity that are excluded from net income (loss). As of June 30, 2020 and March 31, 2020, accumulated other comprehensive loss is presented separately on the condensed consolidated balance sheets and consists of cumulative foreign currency translation adjustments and unrealized gains and losses on investments.

Accounting Policies

The accompanying condensed consolidated financial statements reflect the application of certain significant accounting policies as described below and elsewhere in these notes to the condensed consolidated financial statements. As of June 30, 2020, the Company’s significant accounting policies and estimates, which are detailed in the Company’s Annual Report on Form 10-K, have not changed, other than those impacted by new accounting standards as described below. 

Recently Issued and Adopted Accounting Pronouncements

From time to time, new accounting pronouncements are issued by the Financial Accounting Standards Board (FASB) or other standard setting bodies and adopted by the Company as of the specified effective date.

Recently Adopted Accounting Pronouncements

On April 1, 2020, the Company adopted ASU 2016-13, Financial Instruments - Credit Losses (Topic 326) (ASU 2016-13). ASU 2016-13 changes the impairment model for most financial assets and certain other instruments. Entities will be required to use an expected loss model that will result in the earlier recognition of allowances for losses for trade and other receivables, held-to-maturity debt securities, loans, and other instruments. For available-for-sale debt securities with unrealized losses, the losses will be recognized as allowances rather than as reductions in the amortized cost of the securities. The Company adopted the standard utilizing the modified retrospective approach. The adoption of the standard did not have a material impact on its condensed consolidated financial statements.

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On April 1, 2020, the Company adopted ASU 2017-04, Simplifying the Test for Goodwill Impairment (ASU 2017-04). ASU 2017-04 eliminates the second step in the goodwill impairment test which requires an entity to determine the implied fair value of the reporting unit’s goodwill. The adoption of this standard had no impact on the Company’s consolidated financial statements.

Recently Issued Accounting Pronouncements

In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes (ASU 2019-12). ASU 2019-12 is intended to simplify various aspects related to accounting for income taxes, removes certain exceptions to the general principles in Topic 740 and clarifies and amends existing guidance to improve consistent application. ASU 2019-12 is effective for annual periods, including interim periods within those annual periods, beginning after December 15, 2020. The Company is currently in the process of evaluating the impact and timing of adoption of the ASU 2019-12 on its consolidated financial statements.

2. Revenue and Deferred Revenue

Revenue recognized during the three months ended June 30, 2020 and 2019 from amounts included in deferred revenue at the beginning of the respective periods was approximately $80.8 million and $67.2 million, respectively. Revenue recognized during the three months ended June 30, 2020 from performance obligations satisfied or partially satisfied in previous periods was not material.

Contracted revenue as of June 30, 2020 and 2019 that has not yet been recognized (contracted and not recognized) was $98.9 million and $90.5 million, respectively, which includes deferred revenue and non-cancellable amounts that will be invoiced and recognized as revenue in future periods and excludes contracts with an original expected length of one year or less. The Company expects 56% of contracted and not recognized revenue to be recognized over the next twelve months, 42% in years two and three, with the remaining balance recognized thereafter.

3. Concentration of Credit Risk and Off-Balance Sheet Risk

The Company has no off-balance sheet risk, such as foreign exchange contracts, option contracts, or other foreign hedging arrangements. Financial instruments, which potentially subject the Company to concentrations of credit risk, consist primarily of cash and cash equivalents, investments and accounts receivable. The Company maintains its cash, cash equivalents and investments with major financial institutions of high-credit quality. Although the Company deposits its cash with multiple financial institutions, its deposits, at times, may exceed federally insured limits.

Credit risk with respect to accounts receivable is dispersed due to our large number of customers. The Company’s accounts receivable are derived from revenue earned from customers primarily located in the United States, the United Kingdom and South Africa. The Company generally does not require its customers to provide collateral or other security to support accounts receivable. The Company maintains an allowance for its doubtful accounts receivable due to estimated credit losses. The Company estimates credit losses at the reporting date resulting from the inability of its customers to make required payments, including its historical experience of actual losses and the aging of such receivables. These receivables have been pooled by shared risk characteristics. Based on known information the Company may also establish specific allowances for customers in an adverse financial condition or adjust its expectations of changes in conditions that may impact the collectability of outstanding receivables. Credit losses historically have not been significant and the Company generally has not experienced any material losses related to receivables from individual customers, or groups of customers. Due to these factors, no additional credit risk beyond amounts provided for collection losses is believed by management to be probable in the Company’s accounts receivable. The Company will continue to actively monitor the impact of the COVID-19 pandemic on expected credit losses. As of June 30, 2020 and March 31, 2020, no individual customer represented more than 10% of the Company’s accounts receivable. During the three months ended June 30, 2020 and 2019, no individual customer represented more than 10% of the Company’s revenue.

The Company diversifies its investment portfolio by investing in multiple types of investment-grade securities and attempts to mitigate a risk of loss by using a third-party investment manager. As of June 30, 2020 and March 31, 2020, the Company did not hold any investments.

4. Cash, Cash Equivalents and Investments

The Company considers all highly liquid instruments purchased with an original maturity date of 90 days or less from the date of purchase to be cash equivalents. Cash and cash equivalents consist of cash on deposit with banks, amounts held in interest-bearing money market funds and investments with maturities of 90 days or less from the date of purchase. Investments not classified as cash equivalents are presented as either short-term or long-term investments based on both their stated maturities as well as the time period the Company intends to hold such securities. The Company determines the appropriate classification of investments at the time of purchase and reevaluates such designation at each balance sheet date. The Company adjusts the cost of investments for amortization of premiums and accretion of discounts to maturity. The Company includes such amortization and accretion in interest income in the condensed consolidated statements of operations. As of June 30, 2020 and March 31, 2020, cash and cash equivalents of $198.5 million and $174.0 million, respectively, were carried at amortized cost, which approximates their market value.

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5. Fair Value of Financial Instruments

The Company’s financial instruments include cash, cash equivalents, investments, accounts receivable, accounts payable, accrued expenses and borrowings under the Company’s long-term debt arrangements. The carrying amount of the Company’s long-term debt arrangements approximates its fair values due to the interest rates the Company believes it could obtain for arrangements with similar terms. The carrying amount of the remainder of the Company’s financial instruments approximated their fair values as of June 30, 2020 and March 31, 2020, due to the short-term nature of those instruments.

The Company has evaluated the estimated fair value of financial instruments using available market information. The use of different market assumptions and/or estimation methodologies could have a significant effect on the estimated fair value amounts.

Fair values determined using “Level 1 inputs” utilize unadjusted quoted prices in active markets for identical assets or liabilities that we have the ability to access.  Fair values determined using “Level 2 inputs” utilize quoted prices that are directly or indirectly observable. Fair values determined using “Level 3 inputs” utilize unobservable inputs for determining fair values of assets or liabilities that reflect an entity's own assumptions in pricing assets or liabilities. As of June 30, 2020 and March 31, 2020, the Company did not have any assets or liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3).

The Company measures eligible assets and liabilities at fair value, with changes in value recognized in earnings. Fair value treatment may be elected either upon initial recognition of an eligible asset or liability or, for an existing asset or liability, if an event triggers a new basis of accounting. The Company did not elect to remeasure any of its existing financial assets or liabilities and did not elect the fair value option for any financial assets and liabilities transacted in the three months ended June 30, 2020 and the year ended March 31, 2020.

The following table summarizes financial assets measured and recorded at fair value on a recurring basis in the accompanying condensed consolidated balance sheets as of June 30, 2020 and March 31, 2020, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value:

6. Leases

The Company has operating and finance leases for data centers, facilities, and certain equipment. The leases have remaining lease terms of less than a year to 9 years, some of which include options to extend the leases for up to 10 years. The Company recognizes lease expense for operating leases on a straight-line basis over the lease term. Variable costs, which are based on actual usage, are not included in the measurement of right-of-use assets (ROUA) and lease liabilities but are expensed when the event determining the amount of variable consideration to be paid occurs. Amortization expense of the ROUA for finance leases is recognized on a straight-line basis over the lease term and interest expense for finance leases is recognized based on the effective interest method using an incremental borrowing rate.

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The components of lease expense were as follows:

Supplemental cash flow information related to leases was as follows:

Weighted-average remaining lease term and discount rate:

Maturities of lease liabilities as of June 30, 2020 were as follows:

As of June 30, 2020, the Company had additional operating leases of $1.2 million, including data center leases, the terms of which have not yet commenced. These operating leases are expected to commence in the current fiscal year with lease terms of 2 to 3 years. As of June 30, 2020, the Company had no additional finance leases that have not yet commenced.

7. Internal-use Software Costs

Software Development Costs

Costs incurred to develop software applications used in the Company’s SaaS platform consist of certain direct costs of materials and services incurred in developing or obtaining internal-use computer software, and payroll and payroll-related costs for employees who are directly associated with, and who devote time to, the project. These costs generally consist of internal labor during configuration, coding, and testing activities. Research and development costs incurred during the preliminary project stage or costs incurred for data conversion activities, training, maintenance and general and administrative or overhead costs are expensed as

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incurred. Once an application has reached the development stage, internal and external costs, if direct and incremental, are capitalized until the application is substantially complete and ready for its intended use. Qualified costs incurred during the operating stage of the Company’s software applications relating to upgrades and enhancements are capitalized to the extent it is probable that they will result in added functionality, while costs incurred for maintenance of, and minor upgrades and enhancements to, internal-use software are expensed as incurred. During the three ended June 30, 2020 and 2019, the Company believes the substantial majority of its development efforts were either in the preliminary project stage of development or in the operation stage (post-implementation), and accordingly, no costs have been capitalized during these periods. These costs are included in the accompanying condensed consolidated statements of operations as research and development expense.

Implementation Costs on Cloud-computing Arrangements

As of June 30, 2020 and March 31, 2020, the net carrying value of capitalized implementation costs related to hosting arrangements that were incurred during the application development stage were $2.7 million and $2.9 million, respectively. These capitalized implementation costs will be amortized over the expected term of the arrangement and are amortized in the same line item in the condensed consolidated statements of operations as the expense for fees for the associated hosting arrangement.

8. Net Income (Loss) Per Ordinary Share

The Company calculates basic and diluted net income (loss) per ordinary share by dividing net income (loss) by the weighted-average number of ordinary shares outstanding during the period. For periods that net losses are incurred, the Company has excluded other potentially dilutive shares, which include share options outstanding, unvested restricted share units (RSUs) and estimated employee share purchase plan (ESPP) shares, from the weighted-average number of ordinary shares outstanding as their inclusion in the computation would be anti-dilutive due to net losses incurred.

The following table presents the calculation of basic and diluted net income (loss) per share for the periods presented (in thousands, except per share data):

The following potentially dilutive ordinary share equivalents have been excluded from the calculation of diluted weighted-average shares outstanding as their effect would have been anti-dilutive for the periods presented (in thousands):

9. Share-Based Compensation

For the three months ended June 30, 2020 and 2019, all grants of share-based awards have been made under the Mimecast Limited 2015 Share Option and Incentive Plan (the 2015 Plan) and the 2015 Employee Share Purchase Plan (the ESPP). Additionally, the Company has two pre-IPO share-based compensation plans including the Mimecast Limited 2010 EMI Share Option Scheme (the

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2010 Plan) and the Mimecast Limited Approved Share Option Plan (the Approved Plan) (the 2010 Plan and the Approved Plan, collectively, the Historical Plans). Subsequent to November 19, 2015, the IPO date, no further grants under the Historical Plans were permitted.

The 2015 Plan allows the compensation committee of the board of directors to make equity-based incentive awards to the Company’s officers, employees, non-employee directors and consultants. Initially a total of 5.5 million ordinary shares were reserved for the issuance of awards under the 2015 Plan. This number is subject to adjustment in the event of a share split, share dividend or other change in our capitalization. The 2015 Plan provides that the number of shares reserved and available for issuance under the plan will automatically increase each January 1st by 5% of the outstanding number of ordinary shares on the immediately preceding December 31 or such lesser number of shares as determined by the board of directors.

Under the 2015 Plan, the share option price may not be less than the fair market value of the ordinary shares on the date of grant and the term of each share option may not exceed 10 years from the date of grant. Share options typically vest over 4 years, but vesting provisions can vary based on the discretion of the board of directors. The Company settles share option exercises and RSU releases under the 2015 Plan through newly issued shares. The Company’s ordinary shares underlying any awards that are forfeited, canceled, withheld upon exercise of an option, or settlement of an award to cover the exercise price or tax withholding, or otherwise terminated other than by exercise will be added back to the shares available for issuance under the 2015 Plan.

Initially, a total of 1.1 million shares of the Company's ordinary shares were reserved for future issuance under the ESPP. This number is subject to change in the event of a share split, share dividend or other change in capitalization. The ESPP may be terminated or amended by the board of directors at any time.

The ESPP permits eligible employees to purchase shares by authorizing payroll deductions from 1% to 10% of his or her eligible compensation during each six-month offering period, which starts on the first business day in January and July each year. Unless an employee has previously withdrawn from the offering, his or her accumulated payroll deductions will be used to purchase shares on the last day of the offering period at a price equal to 85% of the fair market value of the shares on the first business day or last business day of the offering period, whichever is lower.