Notes to Condensed Consolidated Financial Statements (unaudited)

1. Organization

Grubhub Inc., a Delaware corporation, and its wholly-owned subsidiaries (collectively referred to as the “Company”) provide an online and mobile platform for restaurant pick-up and delivery orders. Diners enter their delivery address or use geo-location within the mobile applications and the Company displays the menus and other relevant information for restaurants in its network. Orders may be placed directly online, via mobile applications or over the phone at no cost to the diner. The Company charges the restaurant a per order commission that is largely fee based. In certain markets, the Company also provides delivery services to restaurants on its platform that do not have their own delivery operations.

2. Significant Accounting Policies

Basis of Presentation

The accompanying unaudited condensed consolidated interim financial statements include the accounts of Grubhub Inc. and have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and in accordance with the rules and regulations of the United States Securities and Exchange Commission (the “SEC”). Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. These unaudited condensed consolidated interim financial statements include all wholly-owned subsidiaries and reflect all normal and recurring adjustments, as well as any other than normal adjustments, that are, in the opinion of management, necessary for a fair presentation of the results for the interim periods and should be read in conjunction with the consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2016 filed with the SEC on February 28, 2017 (the “2016 Form 10-K”). All significant intercompany transactions have been eliminated in consolidation. Operating results for the three and six months ended June 30, 2017 are not necessarily indicative of the results that may be expected for the fiscal year ending December 31, 2017.

Use of Estimates

The preparation of condensed consolidated financial statements in accordance with GAAP requires management to make certain estimates, judgments and assumptions that affect the reported amounts of assets and liabilities and the related disclosures at the date of the financial statements, as well as the reported amounts of revenue and expenses during the periods presented. Estimates include revenue recognition, the allowance for doubtful accounts, website and internal-use software development costs, goodwill, depreciable lives of property and equipment, recoverability of intangible assets with definite lives and other long-lived assets, stock-based compensation and income taxes. Actual results could differ from these estimates.   

Changes in Accounting Principle

See “ Recently Issued Accounting Pronouncements ” below for a description of accounting principle changes adopted during the six months ended June 30, 2017 related to goodwill, business combinations and stock-based compensation. There have been no other material changes to the Company’s significant accounting policies described in the 2016 Form 10-K.

Recently Issued Accounting Pronouncements

In May 2017, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update No. 2017 -09, “Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting” (“ASU 2017-09”). ASU 2017-09 provides clarification on when modification accounting should be used for changes to the terms or conditions of a share-based payment award. This ASU does not change the accounting for modifications but clarifies that modification accounting guidance should only be applied if there is a change to the value, vesting conditions, or award classification and would not be required if the changes are considered non-substantive. ASU 2017-09 will be effective for the Company beginning in the first quarter of 2018 on a prospective basis and early adoption is permitted. The adoption of ASU 2017-09 is not expected to have a material impact on the Company’s consolidated financial position, results of operations or cash flows.

In January 2017, the FASB issued Accounting Standards Update No. 2017-04, “Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment” (“ASU 2017-04”). ASU 2017-04 eliminates Step 2 from the goodwill impairment test, which measures a goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill with its carrying amount. Under the amendment, an entity should recognize an impairment charge for the amount by which the reporting unit’s carrying

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Notes to Condensed Consolidated Financial Statements (unaudited) (continued)

amoun t exceeds its fair value, not to exceed the carrying amount of goodwill. The Company elected to early adopt ASU 2017-04 beginning in the first quarter of 2017 and will apply the standard prospectively. The Company performs its annual goodwill impairment te st as of September 30 ^th , or more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of the Company below its carrying value. The adoption of ASU 2017-04 may reduce the cost and complexity of evaluati ng goodwill for impairment, but it did not have, and is not expected to have, a material impact on the Company’s consolidated financial position, results of operations or cash flows.

In January 2017, the FASB issued Accounting Standards Update No. 2017-01, “Business Combinations (Topic 805): Clarifying the Definition of a Business” (“ASU 2017-01”). ASU 2017-01 provides that when substantially all the fair value of the assets acquired is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. The Company elected to adopt ASU 2017-01 early; therefore, ASU 2017-01 is effective for transactions beginning in the first quarter of 2017 on a prospective basis. There were no transactions during the six months ended June 30, 2017 that met the definition of a business combination. The adoption of ASU 2017-01 did not have, and is not expected to have, a material impact on the Company’s consolidated financial position, results of operations or cash flows.

In August 2016, the FASB issued Accounting Standards Update No. 2016-15, “Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments” (“ASU 2016-15”). ASU   2016-15 adds or clarifies guidance on the classification of certain cash receipts and payments in the statement of cash flows with the intent of reducing diversity in practice related to eight types of cash flows including, among others, debt prepayment or debt extinguishment costs, contingent consideration payments made after a business combination, and separately identifiable cash flows and application of the predominance principle. In addition, in November 2016, the FASB issued Accounting Standards Update No. 2016-18, “Statement of Cash Flows (Topic 230): Restricted Cash” (“ASU 2016-18”). ASU 2016-18  requires companies to include amounts generally described as restricted cash and restricted cash equivalents in cash and cash equivalents when reconciling beginning-of-period and end-of-period total amounts shown on the statement of cash flow . ASU 2016-15 and ASU 2016-18 are effective for the Company beginning in first quarter of 2018 and early adoption is permitted. The amendments should be applied using a retrospective transition method to each period presented. The adoption of ASU 2016-15 and ASU 2016-18 may impact the Company’s disclosures but is otherwise not expected to have a material impact on its consolidated financial position, results of operations or cash flows.

In June 2016, the FASB issued Accounting Standards Update No. 2016-13, “Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” (“ASU 2016-13”). ASU 2016-13 introduces a new forward-looking approach, based on expected losses, to estimate credit losses on certain types of financial instruments, including trade receivables and held-to-maturity debt securities, which will require entities to incorporate considerations of historical information, current information and reasonable and supportable forecasts. This ASU also expands disclosure requirements. ASU 2016-13 is effective for the Company beginning the first quarter of 2020 and early adoption is permitted. The guidance will be applied using the modified-retrospective approach. The adoption of ASU 2016-13 is not expected to have a material impact on the Company’s consolidated financial position, results of operations or cash flows.

In March 2016, the  FASB issued Accounting Standards Update No. 2016-09, “Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting” (“ASU 2016-09”), which simplifies several aspects of the accounting for share-based payment transactions . Under ASU 2016-09, excess tax benefits and tax deficiencies are recognized as income tax expense or benefit in the income statement. ASU 2016-09 also provides entities with the option to elect an accounting policy to continue to estimate forfeitures of stock-based awards over the service period (current GAAP) or account for forfeitures when they occur . Under ASU 2016-09,  previously unrecognized excess tax benefits should be recognized using a modified retrospective transition. In addition, amendments requiring recognition of excess tax benefits and tax deficiencies in the income statement, as well as changes in the computation of weighted-average diluted shares outstanding, should be applied prospectively. ASU 2016-09 is effective for and was adopted by the Company beginning in the first quarter of 2017 and the impact of the adoption resulted in the following : 

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Notes to Condensed Consolidated Financial Statements (unaudited) (continued)

In February 2016, the FASB issued Accounting Standards Update No.  2016-02, “Leases (Topic 842)” (“ASU 2016-02”). Under ASU 2016-02, a lessee will recognize in the statement of financial position a liability to make lease payments and a right-of-use asset for all leases (with the exception of short-term leases) at the commencement date. The recognition, measurement, and presentation of expenses and cash flows arising from a lease under ASU 2016-02 will not significantly change from current GAAP. ASU 2016-02 is effective beginning in the first quarter of 2019 with early adoption permitted. The Company will be required to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach. The Company is currently evaluating the impact of adoption of ASU 2016-02 on its consolidated financial statements and anticipates that it will result in a significant increase in its long-term assets and liabilities but will have no material impact to its results of operations and cash flows.      

In May 2014, the FASB issued  Accounting Standards Update No.  2014-09, “Revenue from Contracts with Customers (Topic 606)” (“ASU 2014-09”) ,  which supersedes the revenue recognition requirements in Topic 605, Revenue Recognition, including most  industry-specific requirements. ASU 2014-09 establishes a five-step revenue recognition process in which an entity will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. ASU 2014-09 also requires enhanced disclosures regarding the nature, amount, timing and uncertainty of revenues and cash flows from contracts with customers. In August 2015, the FASB issued Accounting Standards Update No. 2015-14, “Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date”, which defers the effective date of ASU 2014-09 by one year.  In March 2016, the FASB issued Accounting Standards Update No. 2016-08, “Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net)” (“ASU 2016-08”), which clarifies the implementation guidance on principal versus agent considerations in the new revenue recognition standard. ASU 2016-08 clarifies how an entity should identify the unit of accounting (i.e. the specified good or service) for the principal versus agent evaluation and how it should apply the control principle to certain types of arrangements.  In April 2016, the FASB issued Accounting Standards Update No. 2016-10, “Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing” (“ASU 2016-10”) ,  which clarifies the implementation guidance on identifying performance obligations and licensing. ASU 2016-10 reduces the cost and complexity of identifying promised goods or services and improves the guidance for determining whether promises are separately identifiable. In May 2016, the FASB issued Accounting Standards Update No. 2016-12, “ Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients”  (“ASU 2016-12”),  which amends the guidance in the new revenue standard on collectability, non-cash consideration, presentation of sales tax, and transition. In December 2016, the FASB issued Account Standards Update No. 2016-20, “Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers” (“ASU 2016-20”), which contains additional technical corrections and improvements to the revenue standard but doesn’t change any of the principles in the new revenue guidance.  ASU 2014-09, ASU 2016-08, ASU 2016-10, ASU 2016-12 and ASU 2016-20 will be effective for the Company in the first quarter of 2018. The Company currently anticipates applying the modified retrospective approach when adopting these ASUs . Based on the Company’s initial assessment, the adoption of these ASUs is expected to have an immaterial impact on the timing of recognition of certain revenues and result in the deferral of certain incremental costs of obtaining a contract. Management does not expect the impact the adoption of these ASUs to have a material impact on the  Company’s consolidated financial position, results of operations or cash flows or its business processes, systems and controls.

3. Acquisitions

2016 Acquisition

On May 5, 2016, the Company acquired all of the issued and outstanding stock of KMLee Investments Inc. and LABite.com, Inc. (collectively, “LABite”). The purchase price for LABite was $65.8 million in cash, net of cash acquired of $2.6 million. LABite provides online and mobile food ordering and delivery services for restaurants in numerous western and southwestern cities of the United States.  The acquisition has expanded the Company’s restaurant, diner and delivery networks.

The results of operations of LABite have been included in the Company’s financial statements since May 5, 2016.

The excess of the consideration transferred in the acquisition over the net amounts assigned to the fair value of the assets acquired was recorded as goodwill, which represents the opportunity to expand restaurant delivery services and enhance the breadth and depth of the Company’s restaurant networks. Of the $40.2 million of goodwill related to the acquisition, $5.0 million is expected to be deductible for income tax purposes.

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Notes to Condensed Consolidated Financial Statements (unaudited) (continued)

The assets acquired and liabilities assumed of LABite were recorded at their estimated fair values as of the closing date of May 5, 2016. The following table summarizes the final purchase price allocation acquisition-date fair values of the assets and liab ilities acquired in connection with the LABite acquisition: 

Additional Information

The estimated fair values of the intangible assets acquired were determined based on a combination of the income, cost, and market approaches to measure the fair value of the customer (restaurant) relationships, developed technology and trademarks. The fair value of the trademarks was measured based on the relief from royalty method. The cost approach, specifically the cost to recreate method, was used to value the developed technology. The income approach, specifically the multi-period excess earnings method, was used to value the customer (restaurant) relationships. These fair value measurements were based on significant inputs not observable in the market and thus represent Level 3 measurements within the fair value hierarchy.

The Company incurred certain expenses directly and indirectly related to acquisitions which were recognized in general and administrative expenses within the condensed consolidated statements of operations for the three months ended June 30, 2017 and 2016 of $1.5 million and $0.7 million, respectively, and for the six months ended June 30, 2017 and 2016 of $1.9 million and $1.5 million, respectively.

The pro forma adjustments reflect the amortization that would have been recognized for intangible assets, elimination of transaction costs incurred and pro forma tax adjustments for three and six months ended June 30, 2016 as follows:

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Notes to Condensed Consolidated Financial Statements (unaudited) (continued)

The unaudited pro forma revenues and net income are not intended to represent or be indicative of the Company’s condensed consolidated results of operations or financial condition that would have been reported had the acquisition been completed as of the beginning of the periods presented and should not be taken as indicative of the Company’s future consolidated results of operations or financial condition.

4. Marketable Securities

The amortized cost, unrealized gains and losses and estimated fair value of the Company’s held-to-maturity marketable securities as of June 30, 2017 and December 31, 2016 were as follows:

All of the Company’s marketable securities were classified as held-to-maturity investments and have maturities within one year of June 30, 2017.

The gross unrealized losses, estimated fair value and length of time the individual marketable securities were in a continuous loss position for those marketable securities in an unrealized loss position as of June 30, 2017 and December 31, 2016 were as follows:

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The Company recognized interest income in general and administrative expenses within the condensed consolidated statements of operations during the three months ended June 30, 2017 and 2016 of $0.6 million and $0.3 million, respectively, and for the six months ended June 30, 2017 and 2016 of $1.0 million and $0.5 million, respectively. During the three and six months ended June 30, 2017 and 2016, the Company did not recognize any other-than-temporary impairment losses related to its marketable securities.

The Company’s marketable securities are classified within Level 2 of the fair value hierarchy (see Note 13, Fair Value Measurement, for further details).

5. Goodwill and Acquired Intangible Assets

The components of acquired intangible assets as of June 30, 2017 and December 31, 2016 were as follows:

The gross carrying amount and accumulated amortization of the Company’s developed technology and trademark intangible assets as of June 30, 2017 were adjusted by $4.7 million and $1.0 million, respectively, for certain fully amortized assets that were no longer in use.

Amortization expense for acquired intangible assets was $5.1 million and $5.7 million for the three months ended June 30, 2017 and 2016, respectively, and $10.4 million and $10.7 million for the six months ended June 30, 2017 and 2016, respectively.

There were no changes in the carrying amount of goodwill during the six months ended June 30, 2017.

In January 2017, the Company entered into an agreement with Zoomer Inc. (“Zoomer”) whereby Zoomer waived non-solicitation provisions allowing the Company to engage the services of certain former Zoomer employees and consultants. The Company made total payments of $5.0 million to Zoomer during the six months ended June 30, 2017 in accordance with the terms of the agreement. The Company recognized these payments in other acquired intangible assets and will amortize the balance over an estimated useful life of 2.75 years.

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Notes to Condensed Consolidated Financial Statements (unaudited) (continued)

Estimated future amortization expense of acquired intangible assets as of June 30, 2017 was as follows:

6. Property and Equipment

The components of the Company’s property and equipment as of June 30, 2017 and December 31, 2016 were as follows:

The Company recorded depreciation and amortization expense for property and equipment other than developed software of $2.8 million and $1.9 million for the three months ended June 30, 2017 and 2016, respectively and $5.1 million and $3.3 million for the six months ended June 30, 2017 and 2016, respectively.

The Company capitalized developed software costs of $6.4 million and $3.7 million for the three months ended June 30, 2017 and 2016, respectively, and $12.1 million and $6.7 million for the six months ended June 30, 2017 and 2016, respectively. Amortization expense for developed software costs, recognized in depreciation and amortization in the condensed consolidated statements of operations, for the three months ended June 30, 2017 and 2016 was $2.6 million and $1.3 million, respectively, and $5.0 million and $2.2 million for the six months ended June 30, 2017 and 2016, respectively.

7. Commitments and Contingencies

Legal

In August 2011, Ameranth, Inc. (“Ameranth”) filed a patent infringement action against a number of defendants, including Grubhub Holdings Inc., in the U.S. District Court for the Southern District of California (the “Court”), Case No. 3:11-cv-1810 (“’1810 action”).

In March 2012, Ameranth initiated eight additional actions for infringement of a related patent, U.S. Patent No. 8,146,077 (“’077 patent”), in the same forum, including separate actions against Grubhub Holdings Inc., Case No. 3:12-cv-739 (“’739 action”), and Seamless North America, LLC, Case No. 3:12-cv-737 (“’737 action”). In August 2012, the Court severed the claims against Grubhub Holdings Inc. and Seamless North America, LLC in the ’1810 action and consolidated them with the ’739 action and the ’737 action, respectively. Later, the Court consolidated these separate cases against Grubhub Holdings Inc. and Seamless North America, LLC, along with the approximately 40 other cases Ameranth filed in the same district, with the original ’1810 action. In their answers, Grubhub Holdings Inc. and Seamless North America, LLC denied infringement and interposed various defenses, including non-infringement, invalidity, unenforceability and inequitable conduct.

No trial date has been set for this case. The consolidated district court case was stayed until January 2017, when Ameranth’s motion to lift the stay and proceed on only the ‘077 patent was granted. The Company believes this case lacks merit and that it has strong defenses to all of the infringement claims. The Company intends to defend the suit vigorously. However, the Company is

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Notes to Condensed Consolidated Financial Statements (unaudited) (continued)

unable to predict the likelihood of success of Ameranth’s infringement claims and is unable to predict the likelihood of success of its counterclaims. The Company has not recorded an accrual related to this lawsuit as of June 30, 2017, as it does not believe a material loss is probable. It is a reasonable possibility that a loss may be incurred; however, the possible range of loss is not estimable given the status of the case and the uncertainty as to whether the claims a t issue are with or without merit, will be settled out of court, or will be determined in the Company’s favor, whether the Company may be required to expend significant management time and financial resources on the defense of such claims, and whether the Company will be able to recover any losses under its insurance policies.

In addition to the matter described above, from time to time, the Company is involved in various other legal proceedings arising from the normal course of business activities, including labor and employment claims, some of which relate to the alleged misclassification of independent contractors. In September 2015, a claim was brought in the United States District Court for the Northern District of California under the Private Attorneys General Act by an individual plaintiff on behalf of himself and seeking to represent other drivers and the State of California. The claim seeks monetary penalties and injunctive relief for alleged violations of the California Labor Code based on the alleged misclassification of drivers as independent contractors. The case is currently set for trial in September. The Company does not believe any of these claims will have a material impact on its consolidated financial statements. However,  there is no assurance that any claim will not be combined into a collective or class action.

Indemnification

In connection with the merger of Seamless North America, LLC, Seamless Holdings Corporation and Grubhub Holdings Inc. in August 2013, the Company agreed to indemnify Aramark Holdings Corporation for negative income tax consequences associated with the October 2012 spin-off of Seamless Holdings Corporation that were the result of certain actions taken by the Company through October 29, 2014, in certain instances subject to a $15.0 million limitation. Management is not aware of any actions that would impact the indemnification obligation.

8. Debt

On April 29, 2016, the Company entered into a secured revolving credit facility (the “Credit Agreement”), which provides for aggregate revolving loans up to $185.0 million, subject to an increase of up to an additional $30 million under certain conditions. The credit facility will be available to the Company until April 28, 2021. There were no borrowings outstanding under the Credit Agreement as of June 30, 2017. There have been no changes in the terms of the Credit Agreement during the six months ended June 30, 2017.

During the three and six months ended June 30, 2017, the Company recognized interest expense of $0.2 million and $0.4 million, respectively, in general and administrative expenses within the condensed consolidated statements of operations.

9. Stock-Based Compensation

The Company has granted stock options, restricted stock units and restricted stock awards under its incentive plans. The Company recognizes compensation expense based on estimated grant date fair values for all stock-based awards issued to employees and directors, including stock options, restricted stock awards and restricted stock units.

Stock-based Compensation Expense

The total stock-based compensation expense related to all stock-based awards was $8.2 million and $5.5 million during the three months ended June 30, 2017 and 2016, respectively, and $15.4 million and $12.4 million during the six months ended June 30, 2017 and 2016. As of June 30, 2017, $97.8 million of total unrecognized stock-based compensation expense is expected to be recognized over a weighted-average period of 3.1 years.

Excess tax benefits reflect the total of the individual stock option exercise transactions and vesting of restricted stock awards and restricted stock units in which the reduction to the Company’s income tax liability is greater than the deferred tax assets that were previously recorded. During the six months ended June 30, 2017, the Company recognized excess tax benefits from stock-based compensation of $3.5 million within provision for income taxes on the condensed consolidated statements of operations and within cash flows from operating activities on the condensed consolidated statements of cash flows. During the six months ended June 30, 2016, the Company reported excess tax benefits as a decrease in cash flows from operations and an increase in cash flows from financing activities of $18.8 million. The change in presentation of excess tax benefits during the six months ended June 30, 2017 is a result of the adoption of ASU 2016-09. See Note 2, Significant Accounting Policies, for additional information related to the impact of the adoption of ASU 2016-09.

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Notes to Condensed Consolidated Financial Statements (unaudited) (continued)

The Company capitalized $1.2 million and $0.4 million during the three months ended June 30, 2017 and 2016, respectively, and $2.1 million and $0.8 million during the six mo nths ended June 30, 2017 and 2016, respectively, of stock-based compensation expense as website and software development costs .

Stock Options

The Company granted 618,899 and 131,816 stock options during the six months ended June 30, 2017 and 2016, respectively. The fair value of each stock option award was estimated based on the assumptions below as of the grant date using the Black-Scholes-Merton option pricing model. Expected volatilities are based on a combination of the historical and implied volatilities of comparable publicly-traded companies and the historical volatility of the Company’s own common stock due to its limited trading history as there was no active external or internal market for the Company’s common stock prior to the Company’s initial public offering in April 2014. The Company uses historical data to estimate option exercises and employee terminations within the valuation model. Separate groups of employees that have similar historical exercise behavior are considered separately for valuation purposes. The Company transitioned from using a simplified method for calculating the expected term of its options as it has obtained sufficient historical information to derive a reasonable estimate, therefore, beginning in the first quarter of 2017 the expected term calculation for option awards considers a combination of the Company’s historical and estimated future exercise behavior. The risk-free rate for the period within the contractual life of the option is based on the U.S. Treasury yield curve in effect at the time of grant. The assumptions used to determine the fair value of the stock options granted during the six months ended June 30, 2017 and 2016 were as follows:  

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Stock option awards as of December 31, 2016 and June 30, 2017, and changes during the six months ended June 30, 2017 , were as follows : 

The aggregate intrinsic value in the table above represents the total pre-tax intrinsic value (the difference between the fair value of the common stock and the exercise price, multiplied by the number of in-the-money options) that would have been received by the option holders had all option holders exercised their in-the-money options on each date. This amount will change in future periods based on the fair value of the Company’s stock and the number of options outstanding. The aggregate intrinsic value of awards exercised during the three months ended June 30, 2017 and 2016 was $5.9 million and $10.3 million, respectively. The aggregate intrinsic value of awards exercised during the six months ended June 30, 2017 and 2016 was $8.1 million and $13.1 million, respectively.

The Company recorded compensation expense for stock options of $3.0 million and $3.3 million for the three months ended June 30, 2017 and 2016 , respectively, and $5.9 million and $7.0 million for the six months ended June 30, 2017 and 2016, respectively. As of June 30, 2017, total unrecognized compensation cost, adjusted for estimated forfeitures, related to non-vested stock options was $21.9 million and is expected to be recognized over a weighted-average period of 2.6 years.

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Notes to Condensed Consolidated Financial Statements (unaudited) (continued)

C ompensation expense related to restricted stock units was $5.2 million and $2.2 million during the three months ended June 30, 2017 and 2016 , respectively, and $9.5 million and $3.7 million during the six months ended June 30, 2017 and 2016 , respectively . The aggregate fair value as of the vest date of restricted stock units that vested during the three months ended June 30, 2017 and 2016 was $4.7 million and $0.7 million, respectively, and $14.2 million and $0.8 million during the six months ended June 30, 2017 and 2016, respectively. As of June 30, 2017 , $75.9 million of total unrecognized compensation cost, adjusted for estimated forfeitures, related to 2,476,043 non-vested restricted stock units with weighted-average grant date fair values of $33.97 is expected to be recognized over a weighted-average period of 3.3 years. The fair value of these awards was determined based on the Company’s stock price at the grant date and assumes no expected dividend payments through the vesting period.

Compensation expense recognized related to restricted stock awards was $1.7 million during the six months ended June 30, 2016 . There were no non-vested restricted stock awards or related expense during the three months ended June 30, 2016 . The aggregate fair value as of the vest date of restricted stock awards that vested during the six months ended June 30, 2016 was $1.7 million. As of June 30, 2017 , there were no remaining non-vested restricted stock awards or related unrecognized compensation cost.

10. Income Taxes

As of June 30, 2017, the New York City Department of Finance completed a routine examination of Seamless Holdings Corporation for General Corporation Tax for the short tax period from October 17, 2012 through August 8, 2013 and proposed no changes. The Company does not expect any additional tax liabilities, penalties and/or interest as a result of the audit.

11. Stockholders’ Equity

As of June 30, 2017 and December 31, 2016 , the Company was authorized to issue two classes of stock: common stock and Series A Preferred Stock.

Common Stock

Each holder of common stock has one vote per share of common stock held on all matters that are submitted for stockholder vote. At June 30, 2017 and December 31, 2016, there were 500,000,000 shares of common stock authorized. At June 30, 2017 and December 31, 2016, there were 86,304,912 and 85,692,333 shares issued and outstanding, respectively. The Company did not hold any shares as treasury shares as of June 30, 2017 or December 31, 2016.

On January 22, 2016, the Company’s Board of Directors approved a program that authorizes the repurchase of up to $100 million of the Company’s common stock exclusive of any fees, commissions or other expenses relating to such repurchases through open market purchases or privately negotiated transactions at the prevailing market price at the time of purchase. The repurchase program was announced on January 25, 2016. The repurchased stock may be retired or held as authorized but unissued treasury shares. The repurchase authorizations do not obligate the Company to acquire any particular amount of common stock or adopt any particular method of repurchase and may be modified, suspended or terminated at any time at management’s discretion. Repurchased and retired shares will result in an immediate reduction of the outstanding shares used to calculate the weighted-average common shares outstanding for basic and diluted net income per share at the time of the transaction. During the six months ended June 30, 2017, the Company did not repurchase any shares of its common stock.

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Notes to Condensed Consolidated Financial Statements (unaudited) (continued)

Series A Preferred Stock

The Company was authorized to issue 25,000,000 shares of preferred stock. There were no issued or outstanding shares of preferred stock as of June 30, 2017 or December 31, 2016 .

The Company’s equity as of December 31, 2016 and June 30, 2017 , and changes during the six months ended June 30, 2017 , were as follows:

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12. Earnings Per Share Attributable to Common Stockholders

Basic earnings per share is computed by dividing net income attributable to common stockholders by the weighted-average number of common shares outstanding during the period without consideration for common stock equivalents. Diluted net income per share attributable to common stockholders is computed by dividing net income by the weighted-average number of common shares outstanding during the period and potentially dilutive common stock equivalents, including stock options, restricted stock units and restricted stock awards, except in cases where the effect of the common stock equivalent would be antidilutive. Potential common stock equivalents consist of common stock issuable upon exercise of stock options and vesting of restricted stock units and restricted stock awards using the treasury stock method. The calculation of weighted-average dilutive shares outstanding for the six months ended June 30, 2017 was impacted by the adoption of ASU 2016-09. See Note 2, Significant Accounting Policies , for additional details.

The following tables present the calculation of basic and diluted net income per share attributable to common stockholders for the three and six months ended June 30, 2017 and 2016 :

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During the six months ended June 30, 2016, the Company repurchased and retired 724,473 shares of its common stock at a weighted-average share price of $20.37, or an aggregate of $14.8 million. The repurchases resulted in a reduction of the outstanding shares used to calculate the weighted-average common shares outstanding for basic and diluted net earnings per share from the dates of the repurchases. See Note 11, Stockholders’ Equity, for additional details.

The number of shares of common stock underlying stock-based awards excluded from the calculation of diluted net income per share attributable to common stockholders because their effect would have been antidilutive for the three and six months ended June 30, 2017 and 2016 were as follows:  

13. Fair Value Measurement

Certain assets and liabilities are required to be recorded at fair value on a recurring basis. Accounting standards define fair value as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market in an orderly transaction between market participants on the measurement date. The standards also establish a fair value hierarchy, which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value.

The accounting guidance for fair value measurements prioritizes valuation methodologies based on the reliability of the inputs in the following three-tier value hierarchy:

The Company applied the following methods and assumptions in estimating its fair value measurements: the Company’s commercial paper, investments in corporate and U.S. government agency bonds and certain money market funds are classified as Level 2 within the fair value hierarchy because they are valued using inputs other than quoted prices in active markets that are observable directly or indirectly. Accounts receivable and accounts payable approximate fair value due to their generally short-term maturities.

The following table presents the balances of assets measured at fair value on a recurring basis as of June 30, 2017 and December 31, 2016 :

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In addition to assets and liabilities that are recorded at fair value on a recurring basis, the Company is required to record certain assets and liabilities at fair value on a nonrecurring basis, generally as a result of acquisitions. See Note 3, Acquisitions , for further discussion of the fair value of assets and liabilities associated with acquisitions.

14. Subsequent Events

In August of 2017, the Company announced that it had entered into a definitive agreement to acquire Eat24, LLC (“Eat24”), a wholly-owned subsidiary of Yelp Inc. In July of 2017, the Company announced that it had entered into a definitive agreement to acquire certain assets of OrderUp, Inc. (“OrderUp”), a wholly-owned subsidiary of Groupon, Inc. Eat24 and OrderUp provide online and mobile food ordering and delivery services for restaurants across the United States.

In June of 2017, the Company announced that it had entered into a definitive agreement to acquire substantially all of the assets and certain expressly specified liabilities of A&D Network Solutions, Inc. and Dashed, Inc. (collectively, “Foodler”). Foodler is an independent North American on-line food-ordering company headquartered in Boston.

The Company expects these transactions to close in 2017 pending regulatory approval for the acquisition of Eat24. The completion of these transactions is subject to certain customary closing conditions. The aggregate purchase price for these transactions of approximately $360 million in cash is expected to be funded through a combination of cash on hand and debt. The Company is considering various debt financing options including modifications to or refinancing of the Company’s current Credit Agreement. These acquisitions are expected to expand the Company’s restaurant and diner networks.

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