10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-Q

(Mark One)

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2015

OR

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission File Number: 001-36543

TubeMogul, Inc.

(Exact Name of Registrant as Specified in its Charter)

Delaware	51-0633881
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
1250 53rd Street, Suite 2 Emeryville, California	94608
(Address of principal executive offices)	(Zip code)

(510) 653-0126

(Registrant’s telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	¨	Accelerated filer	¨
Non-accelerated filer	x  (do not check if a smaller reporting company)	Smaller reporting company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No   x

Indicate the number of shares outstanding of each of the issuers classes of common stock as of the latest practicable date. As of November 3, 2015, the registrant had 35,047,910 shares of common stock, $0.001 par value per share, outstanding.

Report Table of Contents

TABLE OF CONTENTS

		Page
PART I.	FINANCIAL INFORMATION
Item 1.	Financial Statements (unaudited)	3
	Condensed Consolidated Balance Sheets as of December 31, 2014 and September 30, 2015	3
	Condensed Consolidated Statements of Operations for the three and nine months ended September 30, 2014 and 2015	4
	Condensed Consolidated Statements of Comprehensive Loss for the three and nine months ended September 30, 2014 and 2015	5
	Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2014 and 2015	6
	Notes to Condensed Consolidated Financial Statements	7
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	16
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	29
Item 4.	Controls and Procedures	30
PART II.	OTHER INFORMATION
Item 1.	Legal Proceedings	30
Item 1A.	Risk Factors	30
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	48
Item 3.	Defaults Upon Senior Securities	48
Item 4.	Mine Safety Disclosures	48
Item 5.	Other Information	48
Item 6.	Exhibits	48
	Signatures	49

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PART I. FINANCIAL INFORMATION

Item 1. Financial Statements

TUBEMOGUL, INC.

Condensed Consolidated Balance Sheets

(In thousands, except per share data)

(Unaudited)

	December 31,			September 30,
	2014			2015
Assets
Current assets:
Cash and cash equivalents	$	46,592		$	83,992
Accounts receivable, net		88,457			126,615
Prepaid expenses and other current assets		2,322			4,688
Total current assets		137,371			215,295
Property, equipment and software, net		3,902			7,283
Other assets		1,434			1,498
Total assets	$	142,707		$	224,076
Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable	$	19,087		$	44,111
Accrued liabilities		50,438			49,309
Note payable, net of discount		1,362			1,251
Other current liabilities		578			1,035
Total current liabilities		71,465			95,706
Deferred rent		601			810
Total liabilities		72,066			96,516
Commitments and contingencies (Note 5)
Stockholders’ equity:
Preferred stock; $0.001 par value; 10,000 shares authorized as of December 31, 2014    and September 30, 2015; 0 shares outstanding as of December 31, 2014    and September 30, 2015		—			—
Common stock; $0.001 par value; 200,000 shares authorized as of    December 31, 2014 and September 30, 2015; 29,838 and 34,988 shares    issued and outstanding as of December 31, 2014 and September 30, 2015,    respectively		30			35
Additional paid-in capital		94,013			163,303
Accumulated deficit		(23,285	)		(35,516	)
Accumulated other comprehensive loss		(117	)		(262	)
Total stockholders’ equity		70,641			127,560
Total liabilities and stockholders’ equity	$	142,707		$	224,076

See accompanying notes to condensed consolidated financial statements.

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TUBEMOGUL, INC.

Condensed Consolidated Statements of Operations

(In thousands, except per share data)

(Unaudited)

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2014			2015			2014			2015
Revenue:
Platform Direct	$	12,114		$	17,895		$	32,929		$	50,025
Platform Services		15,306			28,590			45,232			72,216
Total revenue		27,420			46,485			78,161			122,241
Cost of revenue		8,255			15,338			23,578			38,947
Gross profit		19,165			31,147			54,583			83,294
Operating expenses:
Research and development		5,287			10,931			14,035			29,203
Sales and marketing		8,783			13,466			24,997			38,075
General and administrative		5,583			9,731			14,725			26,173
Total operating expenses		19,653			34,128			53,757			93,451
(Loss) Income from operations		(488	)		(2,981	)		826			(10,157	)
Other (expense) income, net:
Interest expense, net		(63	)		(6	)		(183	)		(57	)
Change in fair value of convertible preferred stock    warrant liability	—			—				168		—
Foreign exchange loss, net		(1,102	)		(719	)		(1,010	)		(1,760	)
Other expense, net		(1,165	)		(725	)		(1,025	)		(1,817	)
Net loss before income taxes		(1,653	)		(3,706	)		(199	)		(11,974	)
Provision for income taxes		(64	)		(48	)		(201	)		(257	)
Net loss	$	(1,717	)	$	(3,754	)	$	(400	)	$	(12,231	)
Basic and diluted net loss per share attributable to common    stockholders	$	(0.06	)	$	(0.11	)	$	(0.03	)	$	(0.38	)
Basic and diluted weighted-average shares used to    compute net loss per share attributable to common    stockholders		29,059			34,679			14,346			31,919

See accompanying notes to condensed consolidated financial statements.

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TUBEMOGUL, INC.

Condensed Consolidated Statements of Comprehensive Loss

(In thousands)

(Unaudited)

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2014			2015			2014			2015
Net loss	$	(1,717	)	$	(3,754	)	$	(400	)	$	(12,231	)
Other comprehensive loss:
Foreign currency translation adjustments		17			(12	)		(113	)		(145	)
Comprehensive loss	$	(1,700	)	$	(3,766	)	$	(513	)	$	(12,376	)

See accompanying notes to condensed consolidated financial statements.

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TUBEMOGUL, INC.

Condensed Consolidated Statements of Cash Flows

(In thousands)

(Unaudited)

	Nine Months Ended
	September 30,
	2014			2015
Cash flows from operating activities:
Net loss	$	(400	)	$	(12,231	)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization		549			1,426
Gain on change in value of convertible preferred stock warrant liability		(168	)		—
Provision for doubtful accounts		526			1,100
Provision for credit memos		1,173			2,139
Stock-based compensation expense		1,836			8,813
Changes in operating assets and liabilities:
Accounts receivable		(20,745	)		(41,397	)
Payments of costs related to initial public offering		(3,349	)		—
Prepaid expenses and other current assets		(1,313	)		(2,366	)
Other assets		75			(64	)
Accounts payable		15,179			23,658
Accrued liabilities		(8,576	)		(1,129	)
Deferred rent		440			209
Deferred revenue		846			457
Net cash used in operating activities		(13,927	)		(19,385	)
Cash flows from investing activities:
Increase in restricted cash		(408	)		—
Purchases of property, equipment and software		(2,819	)		(3,441	)
Net cash used in investing activities		(3,227	)		(3,441	)
Cash flows from financing activities:
Proceeds from public offering of common stock, net of underwriting    discounts, commission and offering costs		46,791			58,333
Repayments on notes payable		(1,057	)		(1,111	)
Proceeds from line of credit		11,800			1,000
Repayment of line of credit		(11,800	)		—
Proceeds from issuances of common stock from options    exercised and under ESPP		275			2,149
Net cash provided by financing activities		46,009			60,371
Effect of exchange rate changes on cash and cash equivalents		(131	)		(145	)
Net increase in cash and cash equivalents		28,724			37,400
Cash and cash equivalents, beginning of period		19,475			46,592
Cash and cash equivalents, end of period	$	48,199		$	83,992
Supplemental disclosures:
Property and equipment purchased and unpaid at period end	$	179		$	1,366
Cash paid for interest		71			95
Conversion of preferred stock warrants to common stock warrants		516			—

See accompanying notes to condensed consolidated financial statements.

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TUBEMOGUL, INC.

Notes to Condensed Consolidated Financial Statements

(In thousands, except per share data and where otherwise noted)

1. The Company and its Significant Accounting Policies

The Company

TubeMogul, Inc., a Delaware corporation (the Company), is an enterprise software company for brand advertising. The Company’s customers include many of the world’s largest brands and their media agencies.

The Company completed a follow-on public offering of common stock in June 2015. The Company sold 3,500,000 shares of its common stock and certain stockholders sold 1,763,246 shares. The shares were sold at a public offering price of $15.75 per share for net proceeds of $52.2 million to the Company, after deducting underwriting discounts and commissions of $2.9 million and before deducting total expenses in connection with this offering of $875. On July 10, 2015, in connection with the Company’s public follow-on offering of common stock on June 10, 2015, the underwriters partially exercised their over-allotment option and purchased 469,486 shares of common stock for net proceeds of $7.0 million.  

Principles of Consolidation and Basis of Presentation

These unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (GAAP) and applicable rules and regulations of the Securities and Exchange Commission (SEC) regarding interim financial reporting, and include the accounts of the Company’s wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2014.   

The consolidated balance sheet as of December 31, 2014 included herein was derived from the audited financial statements as of that date. These unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, the Company’s comprehensive loss and cash flows for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full fiscal year ending December 31, 2015 or any other period.

Use of Estimates

The preparation of the financial statements in accordance with GAAP requires management to make estimates and assumptions that affect reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates in these condensed consolidated financial statements include allowances for doubtful accounts and credit memos, useful lives for depreciation and amortization, loss contingencies, valuation of deferred tax assets, provisions for uncertain tax positions, capitalization of software costs, delivery of impressions for campaigns using the Company’s programmatic TV (PTV) solution and assumptions used for valuation of stock-based compensation. Actual results could differ from those and other estimates.

Accounts Receivable

Accounts receivable are stated at net realizable value. The Company provides an allowance for doubtful accounts based on management’s evaluation of outstanding accounts receivable. The Company maintains reserves for potential credit losses on customer accounts when deemed necessary. The Company analyzes specific accounts receivable, historical bad debts, customer concentrations, current economic trends, and changes in the customer payment terms when evaluating the adequacy of the allowance for doubtful accounts. Accounts receivable are written off when no future collection is possible.

Many of the Company’s contracts with advertising agencies provide that if the brand (i.e., the agency’s customer) does not pay the agency, the agency is not liable to the Company and the Company must seek payment from the brand. Accordingly, the Company considers the creditworthiness of the brand in establishing its allowance for doubtful accounts. However, since inception, the Company has not had to initiate collection efforts directly with any brands where the contract was with an advertising agency.

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The following table presents the changes in the allowance for doubtful accounts:

	Year Ended			Nine Months Ended
	December 31,			September 30,
	2014			2015
Balance, beginning of period	$	(714	)	$	(1,369	)
Additions to allowance		(903	)		(1,100	)
Write offs, net of recoveries		248			512
Balance, end of period	$	(1,369	)	$	(1,957	)

On a quarterly basis, the amount of revenue that is reserved for credit memos is calculated based on the Company’s historical trends and data specific to each reporting period. The Company reviews the actual credit memos issued in prior quarters as they relate to prior periods and establishes a rate at which credit memos affected revenue in prior periods. The Company then applies the established rate to the current period revenue as a basis for estimating future credit memos related to revenue already recognized.

The following table presents the changes in the allowance for credit memos:

	Year Ended			Nine Months Ended
	December 31,			September 30,
	2014			2015
Balance, beginning of period	$	—		$	(460	)
Additions to allowance		(1,875	)		(2,139	)
Issued credit memos		1,415			1,924
Balance, end of period	$	(460	)	$	(675	)

Fair Value Measurement and Financial Instruments

The Company measures the fair value of its financial instruments in accordance with of the Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) for Fair Value Measurements. Under this standard, fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (i.e., the exit price) in an orderly transaction between market participants at the measurement date. In determining fair values of all reported assets and liabilities that represent financial instruments, the Company uses the carrying market values of such amounts. The provision establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing the asset or liability developed based on market data obtained from sources independent of the Company.

Unobservable inputs are inputs that reflect the Company’s assumptions as to what market participants would use in pricing the asset or liability developed based on the best information available under the circumstances. The hierarchy is broken down into three levels based on the observability of inputs as follows:

Level 1 — Unadjusted quoted prices in active markets for identical assets or liabilities accessible to the reporting entity at the measurement date.

Level 2 — Other than quoted prices included in Level 1 inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the asset or liability.

Level 3 — Unobservable inputs for the asset or liability used to measure fair value to the extent that observable inputs are not available, thereby allowing for situations in which there is little, if any, market activity for the asset or liability at measurement date.

The Company had $45,908 and $57,501 of cash equivalents as of December 31, 2014 and September 30, 2015, respectively, which are measured at fair value on a recurring basis. Inputs used in measuring fair value of cash equivalents are categorized as Level 1.

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From time to time the Company enters into foreign currency forward contracts to mitigate its exposure to foreign exchange risk.  The foreign currency forward contracts are valued using observable inputs, such as quotations on forward foreign exchange points and foreign interest rates and are categorized as Level 2. Realizedgains from these contracts were $634and $400 for the three and nine months ended September 30, 2015, respectively. The Company did not enter into such contracts during the year ended December 31, 2014. The Company uses foreign currency forward contracts to mitigate the impact of foreign currency fluctuations of certain non-U.S. dollar denominated asset positions, primarily cash and accounts receivable. Gains and losses resulting from currency exchange rate movements on these forward contracts are recognized in other income (expense) in the accompanying condensed consolidated statements of operations in the period in which the exchange rates change and offset the foreign currency gains and losses on the underlying exposure being hedged. The Company does not enter into derivative financial instruments for trading or speculative purposes.As of September 30, 2015, the Company had forward foreign exchange contracts to buy a total notional value of $20 million against various foreign currencies. The Company does not apply hedge accounting to its derivative transactions. The Company is exposed to credit loss in the event of nonperformance by the counterparty to the foreign currency foreign exchange contracts. The Company continually monitors its positions and the credit ratings of the counterparties involved to mitigate the amount of credit exposure.

Other financial instruments not measured at fair value on the accompanying consolidated balance sheets at December 31, 2014 and September 30, 2015, but which require disclosure of their fair values include accounts receivable, accounts payable, accrued liabilities and debt. The estimated fair values of such instruments at December 31, 2014 and September 30, 2015 approximated their carrying values. The fair values of all of these instruments are categorized as Level 2 in the fair value hierarchy.

Recent Accounting Pronouncements

In May 2014, FASB, issued Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers, or ASU 2014-09, which clarifies existing accounting literature relating to how and when a company recognizes revenue. Under ASU 2014-09, a company 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 and services. Additionally, the guidance requires improved disclosures to help users of financial statements better understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The new standard allows for either a full retrospective or a modified retrospective transition method. The FASB decided on July 9, 2015 to defer for one year the effective date of the new revenue standard for public and nonpublic entities reporting under GAAP. The FASB also decided to permit entities to early adopt the standard as of the original effective date. The Company is in the process of determining what impact, if any, the adoption of this ASU will have on its consolidated financial statements and related disclosures.

In April 2015, FASB issued ASU No. 2015-05, Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement, which provides explicit guidance to help companies evaluate the accounting for fees paid by a customer in a cloud computing arrangement. The new guidance clarifies that if a cloud computing arrangement includes a software license, the customer should account for the license consistent with its accounting for other software licenses. If the arrangement does not include a software license, the customer should account for the arrangement as a service contract. ASU 2015-05 is effective for public business entities for annual periods, including interim periods within those annual periods, beginning after December 15, 2015. For all other entities, the amendments are effective for annual periods beginning after December 15, 2015, and interim periods in annual periods beginning after December 15, 2016. An entity can elect to adopt the amendments either prospectively for all arrangements entered into or materially modified after the effective date, or retrospectively. Early adoption is permitted for all entities. The Company is in the process of determining what impact, if any, the adoption of this ASU will have on its consolidated financial statements and related disclosures.

2. Property, Equipment and Software

Property, equipment and software as of December 31, 2014 and September 30, 2015 consisted of the following:

	December 31,			September 30,
	2014			2015
Computer, software and office equipment	$	1,928		$	3,697
Capitalized internal use software costs		1,166			2,928
Furniture and fixtures		1,049			1,916
Leasehold improvements		1,043			1,452
		5,186			9,993
Less accumulated depreciation and amortization		(1,284	)		(2,710	)
Total	$	3,902		$	7,283

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Total depreciation and amortization expense, was $240 and $554 for three months ended September 30, 2014 and 2015, respectively and $549 and $1,426 for the nine months ended September 30, 2014 and 2015, respectively.

3. Accrued Liabilities

Accrued liabilities at December 31, 2014 and September 30, 2015, consisted of the following:

	December 31,		September 30,
	2014		2015
Accrued media costs	$	41,436	$	38,554
Sales commissions		2,826		2,609
Payroll and related expenses		3,757		4,494
Other accrued expenses		2,419		3,652
	$	50,438	$	49,309

Accrued media costs consist of amounts owed to the Company’s vendors for impressions delivered through December 31, 2014 and September 30, 2015.

4. Debt Obligations

Note Payable

Growth Capital Term-Debt and Working Capital Line of Credit

On August 21, 2013, the Company entered into an amended and restated loan and security agreement providing for a growth capital facility and a revolving line of credit. Under the growth capital facility, the Company has the ability to borrow a maximum of $4.25 million in growth capital term loan advances, which bear an interest rate of 4.75% and are secured by the Company’s assets. Under the revolving line of credit, the Company may be advanced up to $20.0 million based on 80% of eligible accounts receivable less the outstanding growth capital term loan balance at the advance date as defined in the amended agreement. Monthly payments of principal and interest are payable in equal installments.

On April 18, 2014, the Company entered into an amendment to its amended and restated loan and security agreement dated August 21, 2013. The amendment increased the revolving line of credit to $35.0 million, extended the availability and maturity of the revolving line through April 1, 2016, and added a new $3.0 million equipment term loan facility. The amendment also introduced a new financial covenant that requires the Company meet certain minimum revenue levels. As of September 30, 2015, the Company had available borrowings under the revolving line of credit of $34.0 million. The equipment term loan facility expired as of December 31, 2014 and was not renewed.

The amendment also increased the amount the Company may borrow under the revolving line of credit up to the lesser of (a) $35.0 million, and (b) a borrowing base equal to 80% of eligible accounts receivable (as defined in the agreement), as amended. Advances under the revolving line of credit accrue interest at a floating per annum rate equal to the Western Edition Wall Street Journal prime rate. While the interest rate applicable to outstanding advances under the revolving line of credit did not change under the amendment, the Company is now required to pay a minimum amount of interest equal to the amount of interest that would accrue per quarter on a notional outstanding principal balance of $2.0 million, or $1.0 million if the Company maintains more than $50.0 million in deposits with the lender.

If the combined amount of the Company’s cash on deposit with the lender, plus the availability under the revolving line of credit is less than $10.0 million, then the Company is required to deliver additional reporting, collections on accounts receivable are applied to immediately reduce the outstanding amount of advances under the revolving line, and the lender is allowed to take, in good faith, additional reserves against availability under the revolving line of credit. As of September 30, 2015, the Company was not in compliance with a covenant requiring it to maintain 80% of its cash in accounts with the lender. A waiver was obtained and the Company rectified its non-compliance on October 30, 2015.

As of September 30, 2015, the Company had $1.0 million of outstanding borrowings under the revolving line of credit.

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Future Payments

Future principal payments of long-term debt and line of credit as of September 30, 2015 were as follows:

2015 (remaining 3 months)	$	1,251
Total		1,251
Less current portion		(1,251	)
Noncurrent portion of debt	$	—

5. Commitments and Contingencies

Lease Commitments

At various dates throughout 2014 and during the nine months ended September 30, 2015, the Company entered into leases and subleases for office space. The leases expire at various dates through 2021.

The Company’s commitments for minimum rentals under these leases as of September 30, 2015 are as follows:

	Operating
	leases
2015 (remaining 3 months)	$	601
2016		2,076
2017		1,209
2018		875
2019		613
Thereafter		1,063
Total minimum lease payments	$	6,437

Rent expense was $644 and $692 for the three months ended September 30, 2014 and 2015, respectively and $1,681 and $1,968 for the nine months ended September 30, 2014 and 2015, respectively.  

Irrevocable Standby Letters of Credit

In July 2013, the Company entered into an irrevocable standby letter of credit in the amount of $334 for the benefit of its sub landlord. The irrevocable letter of credit automatically renews on its anniversary so long that the sub-lease is still effective. The letter of credit may be canceled prior to the expiration date upon the written request of the beneficiary.

In February 2014, the Company entered into an irrevocable standby letter of credit in the amount of $408 for the benefit of one of its lessors. The irrevocable letter of credit automatically renews on its anniversary so long that the lease is still effective.  The letter of credit may be canceled prior to the expiration date upon the written request of the beneficiary.

The Company is contractually required to keep the letters of credit for the term of the respective leases, therefore, the letters of credit are recorded as restricted cash and are classified as long-term assets on the condensed consolidated balance sheets.

Purchase Commitments

In August 2015, the Company entered into a commitment to purchase media from a single supplier in the amount of $7.5 million to $15 million, depending on the type of media purchased. These purchases can be made at any time from February 15, 2015 through September 30, 2016.  

Legal

The Company is involved from time to time in various claims and legal actions arising in the ordinary course of business. While it is not feasible to predict or determine the ultimate outcome of these matters, the Company believes that none of its current legal proceedings will have a material adverse effect on its financial position or results of operations.

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6. Stock-Based Compensation

On July 9, 2007, the board of directors and stockholders of the Company approved and adopted the TubeMogul, Inc. 2007 Equity Compensation Plan (the 2007 Plan) that permitted the grant of incentive and nonqualified stock options, stock awards (including restricted stock units), and stock appreciation rights to purchase shares of the common stock of the Company. Under the 2007 Plan, shares of common stock are reserved for the issuance of permitted awards to eligible participants. Options granted generally vest and become exercisable over a four-year term from the date of grant, at a rate of 25% after one year, then monthly on a straight-line basis thereafter. Options granted generally are exercisable for up to 10 years from the date of grant. Restricted stock units (RSUs) granted are generally released from restriction over a four-year term from the date of grant, at a rate of 25% after one year, then quarterly on a straight-line basis thereafter.

The Company has authorized and reserved a total of 6,093,703 shares of common stock under the 2007 Plan for the grant of permitted awards to employees, directors, consultants, and other service providers for the Company or related companies. The 2007 Plan terminated effective July 16, 2014, though it continues to govern outstanding awards issued under the 2007 Plan prior to July 16, 2014.

In February 2014, the Company’s board of directors and stockholders approved and adopted the TubeMogul, Inc. 2014 Equity Incentive Plan (the 2014 Plan), and the 2014 Plan became effective on July 16, 2014, the day immediately preceding the Company’s initial public offering (IPO). The 2014 Plan permits the grant of stock options, stock appreciation rights, restricted stock, RSUs, performance awards and other cash-based or stock-based awards. In addition, the 2014 Plan contains a mechanism through which the Company may adopt a deferred compensation arrangement in the future. Under the 2014 Plan, shares of common stock are reserved for the issuance of permitted awards to eligible participants. Options granted will generally vest and become exercisable over a four-year term from the date of grant, at a rate of 25% after one year, then monthly on a straight-line basis thereafter. Options granted generally are exercisable for up to 10 years from the date of grant. RSUs granted will generally be released from restriction over a four year term from the date of grant, at a rate of 25% after one year, then quarterly on a straight-line basis thereafter.

The Company initially authorized and reserved a total of 2,500,000 shares of common stock under the 2014 Plan for the grant of permitted awards. This reserve automatically increased on January 1, 2015 by 1,491,894 shares and will continue to increase on each subsequent anniversary through 2024, by an amount equal to the smaller of (a) five percent (5%) of the number of shares of common stock issued and outstanding on the immediately preceding December 31; or (b) an amount determined by the Company’s board of directors. This reserve may also be increased by up to an additional 4,975,000 shares, to include (a) any shares remaining available for grant under the 2007 Plan at the time of its termination; and (b) shares that would otherwise be returned to the 2007 Plan, upon the expiration or termination of awards granted under that plan.

Shares subject to awards which expire or are cancelled or forfeited will again become available for issuance under the 2014 Plan.

The shares available under the 2014 Plan will not be reduced by awards settled in cash.  The shares available under the 2014 Plan will be reduced by shares withheld to satisfy tax withholding obligations with respect to stock options and stock appreciation rights. The gross number of shares issued upon the exercise of stock appreciation rights or options exercised by means of a net exercise or by tender of previously owned shares will be deducted from the shares available under the 2014 Plan.

For purposes of the tables below, the 2007 Plan and the 2014 Plan are collectively referred to as the “Plan.” The following table summarizes the Plan’s stock option activity:

				Weighted-		Weighted-				Weighted
				average		average				average
	Outstanding			exercise		grant		Totalintrinsic		remaining		Aggregate
	number of			price per		date fair		value of		contractual		intrinsic
	shares			share		value		exercises		life		value
Balance at December 31, 2014		5,166		$	5.32						7.75	$	83,132
Options granted		112			14.91	$	8.95
Options exercised		(718	)		0.81			$	9,326
Options canceled		(62	)		3.69
Balance at September 30, 2015		4,498		$	6.30						7.34	$	27,846
Options exercisable and vested at    September 30, 2015		2,271		$	2.38						6.16	$	19,725
Options vested and expected to vest at    September 30, 2015		4,371		$	6.16						7.30	$	27,461

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At September 30, 2015, there was approximately $9.4 million of total unrecognized compensation cost related to unvested options granted under the compensation plan. The remaining unrecognized compensation cost is expected to be recognized over the weighted average remaining vesting period of approximately 1.92years at September 30, 2015.

The fair value of options granted to employees is estimated on the date of grant and to non-employees at each measurement period using the Black-Scholes-Merton option valuation model. This stock-based compensation expense valuation model requires the Company to make assumptions and judgments regarding the variables used in the calculation. These variances include the expected term (weighted average period of time that the options granted are expected to be outstanding), the expected volatility of the Company’s common stock, expected risk-free interest rate, expected dividends. To the extent actual results differ from the estimates, the difference will be recorded as a cumulative adjustment in the period estimates are revised. The Company uses the simplified calculation of expected term, as the Company does not have sufficient historical data to use any other method to estimate expected term. Expected volatility is based on an average of the historical volatilities of the common stock of several entities with characteristics similar to those of the Company. The expected risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant for periods corresponding with the expected life of the option. Expected forfeitures are based on the Company’s historical experience.

The following assumptions were used to calculate the fair value of options for employees:

	Nine Months Ended	Nine Months Ended
	September 30,	September 30,
	2014	2015
Risk-free interest rate	1.8% to 2.0%	1.18% to 1.63%
Dividend yield	—  %	—  %
Volatility	66% to 67%		70%
Expected term	6.0 to 6.4 years	4.5 to 6.5 years

The following table summarizes the Plan’s RSU activity:

				Weighted-
	Outstanding			Average
	number of			Grant Date
	shares			Fair Value
Balance at December 31, 2014		998		$	10.99
RSUs granted		1,467			14.76
RSUs released		(265	)		11.52
RSUs canceled		(224	)		13.73
Balance at September 30, 2015		1,976		$	13.86

The fair value of RSUs granted to employees is estimated on the date of grant and to non-employees at each measurement period using the fair value of the underlying common stock.

At September 30, 2015, there was approximately $22.5 million of total unrecognized compensation cost related to unvested RSUs granted under the compensation plan. The remaining unrecognized compensation cost is expected to be recognized over the weighted average remaining vesting period of approximately 3.31 years at September 30, 2015.

The following table summarizes the effects of stock-based compensation in the Company’s accompanying condensed consolidated statements of operations:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2014		2015		2014		2015
Research and development	$	283	$	1,043	$	594	$	2,513
Sales and marketing		244		1,058		577		2,572
General and administrative		261		1,333		665		3,728
Total stock-based compensation	$	788	$	3,434	$	1,836	$	8,813

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In February 2014, the Company’s board of directors adopted and the stockholders approved the Company’s 2014 Employee Stock Purchase Plan (the ESPP), which became effective on July 17, 2014. The ESPP allows eligible employees to purchase shares of the Company’s common stock at a discount through payroll deductions of up to 15% of their eligible compensation, subject to any plan limitations. The administrator may, in its discretion, modify the terms of offering periods. Due to the timing of the IPO, the first offering period started July 17, 2014 and ended on February 16, 2015. Subsequent offering periods begin on February 17 and August 17 and end on August 16 and February 16, respectively. At the end of each offering period, employees are able to purchase shares at 85% of the lower of the fair market value of the Company’s common stock on the first trading day of the offering period or on the last day of the offering period. During the three months ended September 30, 2015,89 shares were purchased under the ESPP. During the nine months ended September 30, 2015, 210 shares were purchased under the ESPP.

7. Net Loss per Share

The Company calculates its basic and diluted net loss per share in conformity with the two-class method required for companies with participating securities. Under the two-class method, in periods when the Company has net income, net income is determined by allocating undistributed earnings, calculated as net income less current period convertible preferred stock non-cumulative dividends, between common stock and convertible preferred stock. In computing diluted net income, undistributed earnings are re-allocated to reflect the potential impact of dilutive securities.

The Company’s basic net loss per share is calculated by dividing the net loss by the weighted-average number of shares of common stock outstanding for the period. The diluted net loss per share is computed by giving effect to all potential dilutive common stock equivalents outstanding for the period. For purposes of this calculation, options to purchase common stock, RSUs and shares to be issued under the ESPP are considered common stock equivalents but have been excluded from the calculation of diluted net loss per share as their effect is antidilutive as the Company had net losses for the three months ended September 30, 2014 and 2015, and for the nine months ended September 30, 2014 and 2015.

The following table sets forth the computation of net loss per common share:

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2014			2015			2014			2015
Net Loss	$	(1,717	)	$	(3,754	)	$	(400	)	$	(12,231	)
Weighted-average shares used in computing basic and    diluted net loss per share		29,059			34,679			14,346			31,919
Basic and diluted net loss per share	$	(0.06	)	$	(0.11	)	$	(0.03	)	$	(0.38	)

The following securities were excluded from the calculation of diluted net loss per share because their effect would have been anti-dilutive for the periods presented:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2014		2015		2014		2015
Employee stock options		3,965		4,498		3,965		4,498
RSUs		748		1,976		748		1,976
ESPP		124		122		124		122
Total		4,837		6,596		4,837		6,596

8. Employee Benefit Plans

The Company established a 401(k) Profit Sharing Plan (the 401(k) Plan) in 2009, pursuant to which the Company may make a discretionary contribution to the 401(k) Plan each year, allocable to all plan participants. The Company is responsible for administrative expenses of the 401(k) Plan. On January 1, 2015, the Company began matching 25% of the employees’ contributions, subject to vesting conditions, to the 401(k) Plan. The Company contributed $210 and $601 for the three and nine months ended September 30, 2015, respectively.

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9. Income Taxes

The Company is subject to income tax in the U.S. as well as other tax jurisdictions in which it conducts business. Earnings from non-U.S. activities are subject to local country income tax. The Company does not provide for federal income taxes on the undistributed earnings of its foreign subsidiaries as such earnings are to be reinvested indefinitely.

The Company recorded an income tax provision of $64 and $48 for the three months ended September 30, 2014 and 2015, respectively, and $201 and $257 for the nine months ended September 30, 2014 and 2015, respectively, related to foreign income taxes and state minimum taxes. Based on the available objective evidence during the nine months ended September 30, 2015, management believes it is more likely than not that the tax benefits of the U.S. and Japan losses incurred during the nine months ended September 30, 2015 may not be realized by the end of the 2015 fiscal year. Accordingly, the Company did not record the tax benefits of the U.S. and Japan losses incurred during the nine months ended September 30, 2015. The primary difference between the effective tax rate and the federal statutory tax rate relates to foreign tax rate differences, meals and entertainment and state and local minimum and capital taxes. As of September 30, 2015, the Company had no material uncertain tax positions.

Utilization of the net operating loss carryforwards may be subject to an annual limitation due to the ownership change limitations provided by the Internal Revenue Code of 1986, as amended (the Code), and similar state provisions. Any annual limitation may result in the expiration of net operating losses before utilization.

10. Segment Information

The Company considers operating segments to be components of the Company in which separate financial information is available that is evaluated regularly by the Company’s chief operating decision maker (CODM) in deciding how to allocate resources and in assessing performance. The CODM for the Company is the Chief Executive Officer. The CODM reviews financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance. The Company has one business activity, and there are no segment managers who are held accountable for operations, operating results or plans for levels or components below the consolidated unit level. Accordingly, the Company has determined that it has a single operating and reportable segment, which is to design, develop and market software for brand advertising.

11. Subsequent Events

In October 2015, the Company entered into an irrevocable standby letter of credit in the amount of $821 for the benefit of its landlord. The irrevocable letter of credit automatically renews on its anniversary so long that the sub-lease is still effective. The letter of credit may be canceled prior to the expiration date upon the written request of the beneficiary.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations  

The following discussion and analysis of our financial condition, results of operations and cash flows should be read in conjunction with (1) the unaudited condensed consolidated financial statements and the related notes thereto included elsewhere in this Quarterly Report on Form 10-Q (Form 10-Q), and (2) the audited consolidated financial statements and notes thereto and management’s discussion and analysis of financial condition and results of operations for the fiscal year ended December 31, 2014 included in our Annual Report on Form 10-K (File No. 001-36543). This Form 10-Q contains “forward-looking statements” within the meaning of Section 27A of the Securities Act and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act.  These statements are often identified by the use of words such as “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “project,” “will,” “would” or the negative or plural of these words or similar expressions or variations. Such forward-looking statements are subject to a number of risks, uncertainties, assumptions and other factors that could cause actual results and the timing of certain events to differ materially from future results expressed or implied by the forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, those identified herein, and those discussed in the section titled “Risk Factors,” set forth in Part II, Item 1A of this Form 10-Q and in our other SEC filings. You should not rely upon forward-looking statements as predictions of future events. Furthermore, such forward-looking statements speak only as of the date of this report. Except as required by law, we undertake no obligation to update any forward-looking statements to reflect events or circumstances after the date of such statements.

Overview

TubeMogul is an enterprise software company for brand advertising. By reducing complexity, improving transparency and leveraging real-time data, our platform enables advertisers to gain greater control of their video advertising spend and achieve their brand advertising objectives.

Our customers can plan, buy, measure and optimize their global video advertising spend from our self-serve platform. By integrating programmatic technologies and disparate sources of inventory within a single platform, we enable our customers to launch sophisticated, scalable video advertising campaigns — onto any digital device — within minutes. Brands use our platform to verify the success and impact of their video advertising campaigns by measuring the audience reached by the campaign, how the audience interacted with their advertisements and the impact the campaign had on the consumer’s perception of the brand. Our platform uses these real-time insights to dynamically optimize spend across digital sources of inventory including digital ad exchanges, supply-side platforms, private marketplaces, ad networks and direct premium publishers. Our platform measures key brand advertising metrics including brand lift, as measured by integrated brand surveys, as well as Gross Rating Points and engagement.

We make our platform available through two offerings: Platform Direct, which allows advertisers to continuously run campaigns through a self-serve model, and Platform Services, which allows advertisers to specify campaign objectives and have our team execute on their behalf using our platform.

Our Platform Direct offering allows advertisers to run self-serve campaigns eliminating the often complex and inefficient request for proposal (RFP) process through which digital media is typically bought. Platform Direct customers enter into master service agreements with us that enable them to execute all of their campaigns under the agreement without the need for campaign-by-campaign insertion orders, or IOs. We generate Platform Direct revenue by charging our customers a utilization fee that is a percentage of media spend as well as fees for additional features offered through our platform. Because Platform Direct customers have control of the media purchasing decisions through our platform, our Platform Direct revenue is recognized on a net basis, meaning that it only includes our fees and not the cost of media purchased. The gross margin for our Platform Direct offering for the year ended December 31, 2014 was 97%.

Our Platform Services offering allows advertisers who continue to use a traditional RFP process to realize the benefits of our platform without needing to alter their purchasing process. Platform Services arrangements are generally in the form of discrete IOs which are negotiated on a campaign-by-campaign basis. We generate Platform Services revenue by delivering video advertisements based upon our customer’s campaign specifications. Our Platform Services revenue is recognized on a gross basis, meaning that it includes the cost of the media purchased. The gross margin for our Platform Services offering for the year ended December 31, 2014 was 50%.

We believe customers value both our Platform Direct and our Platform Services offerings as Total Spend through our platform has increased from $53.8 million for the year ended December 31, 2012 to $254.3 million for the year ended December 31, 2014, representing a compound annual growth rate, or CAGR, of 117%. Total Spend through our platform increased from $62.5 million for the three months ended September 30, 2014 to $103.4 million for the three months ended September 30, 2015, representing period-over-period growth of 65%. We define Total Spend as the aggregate gross dollar volume that our Platform Direct customers and Platform Services customers spend through our platform, which includes media purchases and our fees. We actively engage with our Platform Services customers to educate them about the benefits of migrating to our Platform Direct offering.

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We consider our global capabilities to be a competitive differentiator to global brands and agencies. Campaigns can be executed through our platform in over 70 countries using a single integrated workflow. During 2014, we executed campaigns in over 40 countries and generated 31% of our revenue from customers with billing addresses outside of the United States.

We were incorporated in California in 2007 and reincorporated in Delaware in March 2014. We initially developed video content syndication and video analytics software for publishers and launched our advertiser-focused platform in 2011. For the three months ended September 30, 2014 and 2015, our revenue increased from $27.4 million to $46.5 million, and for the nine months ended September 30, 2014 and 2015, our revenue increased from $78.2 million to $122.2 million. For the three months ended September 30, 2014 and 2015, our gross margin decreased from 70% to 67%, and for the nine months ended September 30, 2014 and 2015 our gross margin decreased from 70% to 68%. We had net losses of $1.7 million and $0.4 for the three and nine months ended September 30, 2014, respectively. We had net losses of $3.8 million and $12.2 million for the three and the nine months ended September 30, 2015, respectively.

Key Operating and Financial Performance Metrics

To help us monitor the overall performance of our business and identify trends, we evaluate the following key metrics: Total Spend, Platform Direct Spend, revenue, gross profit, gross margin, Adjusted EBITDA, and Number of Platform Direct Clients. Total Spend, Platform Direct Spend Adjusted EBITDA and Number of Platform Direct Clients are discussed immediately following the table below. Revenue, gross profit and gross margin are further discussed under the headings “Components of our Results of Operations.”

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2014			2015			2014			2015
	(unaudited)
	(in thousands, except for clients)
Key Metrics
Platform Direct Spend	$	47,239		$	74,836		$	126,461		$	207,505
Platform Services Spend		15,306			28,590			45,232			72,216
Total Spend	$	62,545		$	103,426		$	171,693		$	279,721
Platform Direct revenue	$	12,114		$	17,895		$	32,929		$	50,025
Platform Services revenue		15,306			28,590			45,232			72,216
Total revenue	$	27,420		$	46,485		$	78,161		$	122,241
Gross profit	$	19,165		$	31,147		$	54,583		$	83,294
Gross margin		70	%		67	%		70	%		68	%
Adjusted EBITDA	$	472		$	849		$	3,034		$	(293	)
Number of Platform Direct Clients		308			424			308			424

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Total Spend and Platform Direct Spend

For purposes of calculating Total Spend and Platform Direct Spend, we define spend as the aggregate gross dollar volume that our customers spend through our platform, which includes cost of media purchases and our fees. Platform Direct Spend does not represent revenue earned by us and is a non-GAAP financial measure defined by us as the spend through our Platform Direct offering. Platform Services Spend equals our Platform Services revenue. Total Spend does not represent revenue earned by us and is a non-GAAP financial measure defined by us as the sum of Platform Direct Spend and Platform Services Spend. We believe Platform Direct Spend and Total Spend are meaningful measures of our operating performance because our ability to generate increases in Platform Direct Spend and Total Spend are strongly correlated to our ability to generate increases in Platform Direct revenue and revenue, respectively. Platform Direct Spend and Total Spend are used by our management and board of directors to understand our business and make operating decisions. A limitation of each of Platform Direct Spend and Total Spend is that each is a measure that we have defined for internal purposes that may be unique to us, and therefore it may not enhance the comparability of our results to other companies in our industry that have similar business arrangements but present the impact of media costs differently. Because of these limitations you should consider Platform Direct Spend and Total Spend along with the corresponding GAAP-based measures. The following is a reconciliation of these measures to Platform Direct revenue and revenue, the most directly comparable financial measures calculated in accordance with GAAP:

	Years ended								Three Months Ended				Nine Months Ended
	December 31,								September 30,				September 30,
	2011		2012		2013		2014		2014		2015		2014		2015
	(unaudited, in thousands)
Platform Direct Revenue	$	2,171	$	5,433	$	19,331	$	49,231	$	12,114	$	17,895	$	32,929	$	50,025
Plus: Non-GAAP Platform Direct Media Cost		2,143		19,599		54,685		140,017		35,125		56,941		93,532		157,480
Platform Direct Spend	$	4,314	$	25,032	$	74,016	$	189,248	$	47,239	$	74,836	$	126,461	$	207,505
Platform Services Spend	$	13,488	$	28,726	$	37,883	$	65,012	$	15,306	$	28,590	$	45,232	$	72,216
Total Spend	$	17,802	$	53,758	$	111,899	$	254,260	$	62,545	$	103,426	$	171,693	$	279,721

Adjusted EBITDA

Adjusted EBITDA is a non-GAAP financial measure defined by us as net income (loss) before interest expense, net, provision for income tax, depreciation and amortization expense excluding amortization of internal use software development costs, stock-based compensation expense, foreign exchange gains and losses, both realized and unrealized, loss on extinguishment of convertible notes, and change in fair value of convertible preferred stock warrant liability. We have provided below a reconciliation of Adjusted EBITDA to net income (loss) the most directly comparable GAAP financial measure. Adjusted EBITDA is a key measure used by our management and our board of directors to understand and evaluate our core operating performance and trends, to prepare and approve our annual budget and to develop short and long-term operating plans. In particular, we believe that the exclusion of the amounts eliminated in calculating Adjusted EBITDA can provide a useful measure for period-to-period comparisons of our core business. Accordingly, we believe that Adjusted EBITDA provides useful information in understanding and evaluating our operating results in the same manner as our management and our board of directors.

Our use of Adjusted EBITDA has limitations as an analytical tool, and you should not consider it in isolation or as a substitute for analysis of our financial results as reported under GAAP. Some of these limitations are as follows:

· although depreciation and amortization expense (excluding amortization of internal use software development costs) are non-cash charges, the assets being depreciated and amortized may have to be replaced in the future, and Adjusted EBITDA does not reflect cash capital expenditure requirements for such replacements or for new capital expenditure requirements;

· Adjusted EBITDA does not reflect: (1) changes in, or cash requirements for, our working capital needs; (2) the potentially dilutive impact of stock-based compensation; (3) impact of foreign exchange gains and losses, both realized and unrealized; (4) loss on extinguishment of convertible notes; (5) change in fair value of convertible preferred stock warrant liability; or (6) tax payments that may represent a reduction in cash available to us; and

· other companies, including companies in our industry, may calculate Adjusted EBITDA or similarly titled measures differently, which reduces its usefulness as a comparative measure.

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Because of these and other limitations, you should consider Adjusted EBITDA along with other GAAP-based financial performance measures, including various cash flow metrics, loss, and our GAAP financial results. The following is a reconciliation of Adjusted EBITDA to net loss, the most directly comparable financial measure calculated in accordance with GAAP for each of the periods indicated:

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2014			2015			2014			2015
	(in thousands)
Net loss	$	(1,717	)	$	(3,754	)	$	(400	)	$	(12,231	)
Interest expense, net		63			6			183			57
Provision for income taxes		64			48			201			257
Depreciation and amortization expense,    excluding amortization of internal use software    development costs		172			396			372			1,051
Stock-based compensation expense		788			3,434			1,836			8,813
Foreign exchange loss		1,102			719			1,010			1,760
Change in fair value of convertible preferred stock    warrant liability	—			—				(168	)	—
Adjusted EBITDA	$	472		$	849		$	3,034		$	(293	)

Number of Platform Direct Clients

We define a Platform Direct Client as a customer that had total aggregate spend of at least $10,000 through our platform during the previous twelve months. For purposes of this definition, all branches or divisions of a customer that operate under its contract with us are considered a single Platform Direct Client. In a limited number of instances in any period, branches or divisions of an advertiser that operate under distinct contracts are each considered a separate Platform Direct Client. For example, of our 333 Platform Direct Clients in 2014, 33 represented distinct operations of 11 global companies, primarily advertising agencies, based in different jurisdictions and with respect to which we have negotiated and managed separate contractual relationships. We believe that our total number of Platform Direct Clients is an important measure of our ability to increase revenue and the effectiveness of our sales force.

Platform Direct Cohort Spend

In order to analyze the contribution to the growth of our business driven by the increase in spend from pre-existing Platform Direct customers, we measure Platform Direct Spend for the set of customers, or Cohort, that commenced spending on our Platform Direct offering in a specific year relative to subsequent periods. As illustrated in the following tables, the spend from our 2011, 2012 and 2013 Cohorts has increased over subsequent periods. For 2014, the 2011 Cohort contributed 32% of Platform Direct Spend, the 2012 Cohort contributed 16%, the 2013 Cohort contributed 31% and the 2014 Cohort contributed 22%. For 2013, the 2011 Cohort contributed 45% of Platform Direct Spend, the 2012 Cohort contributed 25% and the 2013 Cohort contributed 30%. For 2012, the 2011 Cohort contributed 71% of Platform Direct Spend, and the 2012 Cohort contributed 29%. We believe that this analysis is helpful in understanding our business.

	Years Ended December 31,								2011 - 2012						2012 - 2013						2013 - 2014
												% of Total Platform						% of Total Platform						% of Total Platform
Cohort (1)	2011		2012		2013		2014		%Change			DirectSpend			%Change			DirectSpend			%Change			DirectSpend
	(in thousands except percentages)
Customers First Spent  2011	$	2,552	$	17,170	$	32,833	$	60,030		573	%		71	%		91	%		45	%		83	%		32	%
Customers First Spent  2012	NA			6,847		18,456		29,766	NA				29	%		170	%		25	%		61	%		16	%
Customers First Spent 2013	NA		NA			22,189		58,313	NA			NA			NA				30	%		163	%		31	%
Customers First Spent 2014	NA		NA		NA			40,785	NA			NA			NA			NA			NA				22	%
Total	$	2,552	$	24,017	$	73,478	$	188,894		841	%		100	%		206	%		100	%		157	%		100	%

(1) Does not include revenue, which equals spend, from our video syndication software offering, a legacy technology which is not part of our digital video advertising spend platform. Customers who use this software are generally not customers for our Platform Direct and Platform Services offerings. We believe that excluding such revenue from the cohort analysis presents a more accurate basis for comparing results across the periods presented.

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Factors Affecting Our Performance

We believe that the continued growth and future success of our business depend on various opportunities, challenges and other factors, including the following:

Retention of and Growth in Spend by Existing Customers

Our future revenue is dependent upon our ability to retain our existing customers and to gain a larger amount of their advertising spend through both our Platform Direct and Platform Services offerings. In particular, our year-over-year growth in Total Spend has been driven by an increase in spend by our existing Platform Direct customers. Of our 25 largest Platform Direct Clients by Platform Direct Spend in 2013, 23 or 92% were also Platform Direct Clients in 2014. Of our 50 largest Platform Direct Clients by Platform Direct Spend in 2013, 47 or 94% were also Platform Direct Clients in 2014. For 2014, 78% of our Platform Direct Spend was from customers that first transacted through our Platform Direct offering in 2011, 2012 or 2013.

Customer Transition from Platform Services to Platform Direct

Our sales strategy is to educate our customers about the benefits of shifting from Platform Services, where purchases are made on a campaign-by-campaign basis, to Platform Direct, where customers are able to consolidate their video advertising spend through one solution on a self-serve basis. Our future performance will be impacted by our ability to continue to convince customers to shift to our Platform Direct offering.

Sales Leverage Improvement

Our ability to achieve and sustain profitability will depend on our ability to continue to benefit from the operating leverage inherent to our self-serve model. After our initial investments to acquire new Platform Direct clients, we typically generate subsequent revenue from these clients without commensurate increases in sales and marketing expenses.

 Investment in Growth

We plan to continue to invest for long-term growth. We anticipate that our operating expenses will increase in the foreseeable future as we invest in research and development to maintain and enhance our platform, in sales and marketing primarily to acquire new customers and general and administrative expenses to support our growth. We believe that these investments will contribute to our long-term growth, although they will adversely affect our results of operations in the near term. In addition, the timing of these investments can result in fluctuations in our annual and quarterly operating results.

Market Growth

We expect to benefit from the continued growth in the digital video advertising market but any material change in the growth rate of this market or our access to advertising inventory could affect our performance. The growth of such market may be adversely impacted by a variety of factors including any delays in the shift of video advertising spend from traditional TV to digital channels. In addition, advertising spend is closely tied to the performance of the economy and a downturn in economic conditions could adversely affect the overall advertising market and our operating results.

Revenue Growth from Additional Media Markets

In 2012, 2013 and 2014, approximately 95%, 95% and 91% of our revenue, respectively, came from advertising served to personal computer users. Our future performance will be dependent in part upon the continued growth of digital video channels, including mobile video, connected TV, social video and TV formats such as video on demand, and upon our ability to grow our revenue in these channels. Accordingly, our business and operating results will be significantly affected by our ability to timely enhance our platform to address these emerging segments of the digital video advertising market and the speed with which advertisers adopt these channels to conduct their advertising campaigns. Revenue from these other digital video channels was not material in 2012, 2013 or 2014.

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Seasonality

In the advertising industry, companies commonly experience seasonal fluctuations in revenue. For example, many advertisers allocate the largest portion of their budgets to the fourth quarter of the calendar year to coincide with increased holiday purchasing. Historically, the fourth quarter of the year reflects our highest level of advertising activity, and the first quarter reflects the lowest level of such activity. We expect our revenue to continue to fluctuate based on seasonal factors that affect the advertising industry as a whole.

Components of Our Results of Operations

Revenue

We generate revenue from our Platform Direct customers from fees based on a percentage of their media spend through our platform as well as from fees for additional services delivered concurrently such as audience targeting data, ad serving, brand safety, topic targeting and other reporting related services that we offer. We generate revenue from our Platform Services customers by delivering video advertisements based upon a pre-agreed set of fixed objectives with an advertiser or agency. Our Platform Services business is generally priced based upon a cost per thousand impressions, or CPM, or based upon specific campaign specifications such as number of engagements, completed views or on-target impressions.

Cost of Revenue

Cost of revenue is comprised primarily of media costs. Media costs consist of advertising impressions we purchase from advertising sources of inventory in connection with our Platform Services offering. We typically pay for these impressions on a CPM basis. Cost of revenue also includes technical infrastructure costs which include the cost of internal and third-party servers and related services, internet access costs and amortization of internal use software development costs on revenue-producing technologies. Technical infrastructure costs represented 5% of our cost of revenue for the year ended December 31, 2014. After giving effect to the allocation of these costs between our Platform Direct revenue (in respect of which it is the largest component of cost of revenue) and Platform Services revenue based upon the amount of media purchases through each service, our gross margin for Platform Direct revenue and Platform Services revenue was 97% and 50%, respectively, for the year ended December 31, 2014. We anticipate that cost of revenue will increase in absolute dollars as our revenue increases, but will decrease as a percentage of revenue if we achieve our objective of increasing our Platform Direct revenue as a percentage of our total revenue. We also expect that over time our Platform Services gross margins will decrease and our Platform Direct gross margins will remain relatively stable.

In our Platform Services arrangements, we generally enter into binding insertion orders (IOs) with fixed price commitments which are determined prior to the launch of an advertising campaign. To fulfill these commitments, we purchase advertising inventory on a real-time basis during the course of the advertising campaign period, which may be weeks or months. As a result, we are exposed to market risk that the cost of such inventory to us may be greater than we expected when we entered into the IO or we may benefit from market prices being less than we expected, either of which impact our media costs as a percentage of revenue.

Operating Expenses

We classify our operating expenses into three categories: research and development, sales and marketing and general and administrative. Our operating expenses consist primarily of personnel costs, professional fees and facilities costs. Personnel costs include employee salaries and bonuses, commissions for sales personnel, stock-based compensation expense and employee benefit costs.

Our research and development expenses consist primarily of personnel costs, outsourced engineering costs associated with the ongoing maintenance and development of our platform and related technologies, allocated technical infrastructure costs directly related to research and development activities, such as testing, and other operating costs allocable to engineering activities. We believe that continued investment in our platform is critical to achieving our objectives, and we expect research and development expenses to continue to increase in future periods.

 Our sales and marketing expenses consist primarily of personnel costs, including operations personnel costs allocable to sales and marketing activities, outsourced sales and marketing activities, brand marketing, trade shows, travel and entertainment, and marketing collateral. In order to increase our share of video advertising spend, we expect sales and marketing expenses to continue to increase in future periods.

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Our general and administrative expenses consist primarily of personnel costs associated with our executive, finance, human resources, legal and other administrative personnel, and also include accounting, legal and other professional service fees, facility costs, bad debt expense, depreciation expense and other corporate expenses. We expect to continue to invest in our corporate infrastructure and incur further expenses related to being a public company, including increased accounting and legal costs, investor relations costs, increased insurance premiums and compliance costs associated with Section 404 of the Sarbanes-Oxley Act. As a result, we anticipate that general and administrative expenses will increase in future periods.

Other Expense, Net

Interest expense, net is related to our term loan and revolving line of credit. Interest expense is expected to fluctuate as we draw on or pay down our revolving line of credit and term debt.

Change in fair value of convertible preferred stock warrant liability is related to a mark to market adjustment associated with a warrant to purchase our preferred stock, all of which was automatically converted into a warrant to purchase shares of common stock as a result of the IPO and was subsequently exercised.

Foreign exchange loss consists of gains and losses on foreign currency translation and the change in value of our foreign currency forward contracts. We have foreign currency exposure related to our accounts receivable and accounts payable that are denominated in currencies other than the U.S. dollar, principally the Australian dollar, British pound, Canadian dollar and Euro. To the extent that our revenue from international operations increases and the scope of our international operations grows, our operating results will become more susceptible to changes in foreign currency exchange rates.

Provision for Income Taxes

Provision for income taxes consists primarily of state income taxes in the U.S. and income taxes in foreign jurisdictions in which we conduct business. Due to uncertainty as to the realization of benefits from our deferred tax assets, including net operating loss carry forwards, research and development and other tax credits, we have a full valuation allowance against such assets. We expect to maintain this full valuation allowance in the near term.

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Results of Operations

The following table sets forth our condensed consolidated results of operations and our condensed consolidated results of operations as a percentage of total revenue for the periods presented. The period-to-period comparisons of results are not necessarily indicative of future periods.

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2014			2015			2014			2015
	(in thousands)
Revenue:
Platform Direct	$	12,114		$	17,895		$	32,929		$	50,025
Platform Services		15,306			28,590			45,232			72,216
Total revenue		27,420			46,485			78,161			122,241
Cost of revenue		8,255			15,338			23,578			38,947
Gross profit		19,165			31,147			54,583			83,294
Operating expenses:
Research and development (1)		5,287			10,931			14,035			29,203
Sales and marketing (1)		8,783			13,466			24,997			38,075
General and administrative (1)		5,583			9,731			14,725			26,173
Total operating expenses		19,653			34,128			53,757			93,451
(Loss) Income from operations		(488	)		(2,981	)		826			(10,157	)
Other (expense) income, net:
Interest expense, net		(63	)		(6	)		(183	)		(57	)
Change in fair value of convertible preferred stock    warrant liability	—				—			168			—
Foreign exchange loss, net		(1,102	)		(719	)		(1,010	)		(1,760	)
Other expense, net		(1,165	)		(725	)		(1,025	)		(1,817	)
Net loss before income taxes		(1,653	)		(3,706	)		(199	)		(11,974	)
Provision for income taxes		(64	)		(48	)		(201	)		(257	)
Net loss	$	(1,717	)	$	(3,754	)	$	(400	)	$	(12,231	)

(1) Stock-based compensation expense included above was as follows:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2014		2015		2014		2015
	(in thousands)
Research and development	$	283	$	1,043	$	594	$	2,513
Sales and marketing		244		1,058		577		2,572
General and administrative		261		1,333		665		3,728
Total stock-based compensation	$	788	$	3,434	$	1,836	$	8,813

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	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2014			2015			2014			2015
Revenue:
Platform Direct		44	%		38	%		42	%		41	%
Platform Services		56	%		62	%		58	%		59	%
Total revenue		100	%		100	%		100	%		100	%
Cost of revenue		30	%		33	%		30	%		32	%
Gross profit		70	%		67	%		70	%		68	%
Operating expenses:
Research and development (1)		19	%		24	%		18	%		24	%
Sales and marketing (1)		32	%		29	%		32	%		31	%
General and administrative (1)		20	%		21	%		19	%		21	%
Total operating expenses		72	%		73	%		69	%		76	%
(Loss) Income from operations		(2	)%		(6	)%		1	%		(8	)%
Other (expense) income, net:
Interest expense, net		(0	)%		(0	)%		(0	)%		(0	)%
Change in fair value of convertible preferred stock    warrant liability		0	%		0	%		0	%		0	%
Foreign exchange loss, net		(4	)%		(2	)%		(1	)%		(1	)%
Other expense, net		(4	)%		(2	)%		(1	)%		(1	)%
Net loss before income taxes		(6	)%		(8	)%		(0	)%		(10	)%
Provision for income taxes		(0	)%		(0	)%		(0	)%		(0	)%
Net loss		(6	)%		(8	)%		(1	)%		(10	)%

Comparison of the Three and Nine Months Ended September 30, 2014 and 2015

Revenue

	Three Months Ended September 30,									Nine Months Ended September 30,
	2014		2015		$ Change		%Change			2014		2015		$ Change		%Change
	(in thousands except percentages)									(in thousands except percentages)
Platform Direct	$	12,114	$	17,895	$	5,781		48	%	$	32,929	$	50,025	$	17,096		52	%
Platform Services		15,306		28,590		13,284		87	%		45,232		72,216		26,984		60	%
Total revenue	$	27,420	$	46,485	$	19,065		70	%	$	78,161	$	122,241	$	44,080		56	%

Revenue increased by $19.1 million, or 70%, during the three months ended September 30, 2015 compared to the three months ended September 30, 2014. Platform Direct revenue increased by $5.8 million, or 48%, during the three months ended September 30, 2015 compared to the three months ended September 30, 2014. Platform Direct revenue from Platform Direct customers who were customers during the three months ended September 30, 2014 contributed $1.3 million of the growth. Platform Direct revenue from Platform Direct customers who spent with us during the three months ended September 30, 2015 that did not spend with us during the three months ended September 30, 2014 contributed $4.5 million of the growth. Platform Services revenue increased by $13.3 million, or 87%, during the three months ended September 30, 2015 compared to the three months ended September 30, 2014. The increase in Platform Services revenue was primarily due to the revenue from customers who spent with us during the three months ended September 30, 2015 that did not spend with us during the three months ended September 30, 2014. 

Revenue increased by $44.1 million, or 56%, during the nine months ended September 30, 2015 compared to the nine months ended September 30, 2014. Platform Direct revenue increased by $17.1 million, or 52%, during the nine months ended September 30, 2015 compared to the nine months ended September 30, 2014. Platform Direct revenue from Platform Direct customers who were customers during the nine months ended September 30, 2014 contributed $6.6 million of the growth. Platform Direct revenue from Platform Direct customers who spent with us during the nine months ended September 30, 2015 that did not spend with us during the nine months ended September 30, 2014 contributed $10.5 million of the growth. Platform Services revenue increased by $27.0 million, or 60%, during the nine months ended September 30, 2015 compared to the nine months ended September 30, 2014. The increase in Platform Services revenue was primarily due to the revenue from customers who spent with us during the nine months ended September 30, 2015 that did not spend with us during the nine months ended September 30, 2014. 

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Cost of Revenue, Gross Profit and Gross Margin

	Three Months Ended September 30,											Nine Months Ended September 30,
	2014			2015			$ Change		%Change			2014			2015			$ Change		%Change
	(in thousands except percentages)											(in thousands except percentages)
Cost of revenue	$	8,255		$	15,338		$	7,083		86	%	$	23,578		$	38,947		$	15,369		65	%
Gross profit		19,165			31,147			11,982		63	%		54,583			83,294			28,711		53	%
Gross margin		70	%		67	%							70	%		68	%

Cost of revenue increased $7.1 million, or 86%, during the three months ended September 30, 2015 compared to the three months ended September 30, 2014. This increase was primarily due to a $6.7 million increase in media costs associated with the growth in Platform Services revenue. Technical infrastructure costs increased by $0.4 million, or 70%, for the three months ended September 30, 2015. After giving effect to the allocation of these technical infrastructure costs between Platform Direct revenue and Platform Services revenue, gross profit from Platform Direct and Platform Services revenue increased from $11.7 million and $7.5 million for the three months ended September 30, 2014 to $17.1 million and $14.0 million for the three months ended September 30, 2015, respectively. Gross margin decreased to 67% for the three months ended September 30, 2015 compared to 70% for the three months ended September 30, 2014, primarily due to Platform Services accounting for 62% of total revenue as compared to 56% in the comparable period.

Cost of revenue increased $15.4 million, or 65%, during the nine months ended September 30, 2015 compared to the nine months ended September 30, 2014. This increase was primarily due to a $14.4 million increase in media costs associated with the growth in Platform Services revenue. Technical infrastructure costs increased by $1.0 million, or 69%, for the nine months ended September 30, 2015. After giving effect to the allocation of these technical infrastructure costs between Platform Direct revenue and Platform Services revenue, gross profit from Platform Direct and Platform Services revenue increased from $31.8 million and $22.8 million for the nine months ended September 30, 2014 to $48.1 million and $35.2 million for the nine months ended September 30, 2015, respectively. Gross margin decreased to 68% for the nine months ended September 30, 2015 compared to 70% for the nine months ended September 30, 2014, primarily due to a decrease in Platform Services gross margin from 50% to 49%.

Research and Development

	Three Months Ended September 30,											Nine Months Ended September 30,
	2014			2015			$ Change		%Change			2014			2015			$ Change		%Change
	(in thousands except percentages)											(in thousands except percentages)
Research and development	$	5,287		$	10,931		$	5,644		107	%	$	14,035		$	29,203		$	15,168		108	%
Percent of revenue		19	%		24	%							18	%		24	%

Research and development expense increased by $5.6 million, or 107%, during the three months ended September 30, 2015 compared to the three months ended September 30, 2014. The increase was primarily due to an increase in personnel costs of $3.6 million, related to a 50% increase in headcount, as of September 30, 2015, which reflected our continued investment in hiring technical personnel, including several engineering leads, to maintain our platform and support our research and development effort, and additional technical infrastructure costs of $1.5 million due to growth in the business. The increase in technical infrastructure costs was attributable to increased costs of third-party data center operations, hosting and ad server management and bandwidth costs necessary to support our increased research and development related activities.

Research and development expense increased by $15.2 million, or 108%, during the nine months ended September 30, 2015 compared to the nine months ended September 30, 2014. The increase was primarily due to an increase in personnel costs of $10.5 million, related to a 50% increase in headcount, as of September 30, 2015, which reflected our continued investment in hiring technical personnel, including several engineering leads, to maintain our platform and support our research and development efforts, and additional technical infrastructure costs of $4.4 million due to growth in the business. The increase in technical infrastructure costs was attributable to increased costs of third-party data center operations, hosting and ad server management and bandwidth costs necessary to support our increased research and development related activities.

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Sales and Marketing

	Three Months Ended September 30,											Nine Months Ended September 30,
	2014			2015			$ Change		%Change			2014			2015			$ Change		%Change
	(in thousands except percentages)											(in thousands except percentages)
Sales and marketing	$	8,783		$	13,466		$	4,683		53	%	$	24,997		$	38,075		$	13,078		52	%
Percent of revenue		32	%		29	%							32	%		31	%

Sales and marketing expense increased by $4.7 million, or 53%, during the three months ended September 30, 2015 compared to the three months ended September 30, 2014. The increase was primarily due to an increase in personnel costs of $4.4 million, related to a 40% increase in headcount to support our revenue growth.

Sales and marketing expense increased by $13.1 million, or 52%, during the nine months ended September 30, 2015 compared to the nine months ended September 30, 2014. The increase was primarily due to an increase in personnel costs of $10.5 million, related to a 40% increase in headcount to support our revenue growth, and an increase in marketing expenses of $2.2 million related to the increase in the number of marketing events.

General and Administrative

	Three Months Ended September 30,											Nine Months Ended September 30,
	2014			2015			$ Change		%Change			2014			2015			$ Change		%Change
	(in thousands except percentages)											(in thousands except percentages)
General and administrative	$	5,583		$	9,731		$	4,148		74	%	$	14,725		$	26,173		$	11,448		78	%
Percent of revenue		20	%		21	%							19	%		21	%

General and administrative expense increased by $4.1 million, or 74%, during the three months ended September 30, 2015 compared to the three months ended September 30, 2014. The increase was primarily due to an increase in personnel costs of $2.5 million, related to a 38% increase in headcount as of September 30, 2015, including additions of several senior administrative and accounting personnel to support our continued growth and our reporting obligations as a public company, an increase in facility costs of $0.6 million as we opened new offices and expanded some of our existing facilities to accommodate our increase in personnel and an increase of $0.5 million due to increased bad debt reserve due to increased account receivables resulting from the increase in revenue.

General and administrative expense increased by $11.4 million, or 78%, during the nine months ended September 30, 2015 compared to the nine months ended September 30, 2014. The increase was primarily due to an increase in personnel costs of $7.5 million, related to a 38% increase in headcount as of September 30, 2015, including additions of several senior administrative and accounting personnel to support our growth and our reporting obligations as a public company, an increase in facility costs of $1.8 million as we opened new offices and expanded some of our existing facilities to accommodate our increase in personnel, an increase in professional and business fees of $1.3 million due to increased external legal, accounting and audit services to support our operations as a public company and an increase of $0.6 million due to increased bad debt reserve related to higher levels of  receivables outstanding and increased revenue.

Other Expenses, Net

The change in other expenses, net was primarily due to foreign currency exchange gains or losses and the change in value of our foreign currency forward contracts.

Provision for Income Taxes

Our provision for income taxes for the three and nine months ended September 30, 2014 and 2015 primarily relates to state taxes and taxes due in foreign jurisdictions.

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Liquidity and Capital Resources

Since our incorporation in March 2007, we have financed our operations and capital expenditures through private sales of convertible preferred stock, lines of credit, term debt and proceeds from our public offerings. Net proceeds from our public offerings were $106.0 million, after deducting underwriting discounts and commissions, and before deducting total expenses in connection with the offerings of $4.2 million.

Our principal sources of cash are our existing cash and cash equivalents balances and funds that may be drawn under our revolving line of credit. As of September 30, 2015, we had cash and cash equivalents of $83.9 million and borrowing capacity of $34 million under our revolving line of credit. As of September 30, 2015 we had $1 million of borrowings under the revolving line of credit. We believe that our existing cash and cash equivalents together with the revolving line of credit will be sufficient to meet our working capital requirements for at least the next 12 months and the foreseeable future. However, our liquidity assumptions may prove to be incorrect, and we could utilize our available financial resources sooner than we currently expect. Our future capital requirements and the adequacy of available funds will depend on many factors, including those set forth in the section of this Form 10-Q entitled “Risk Factors.”

Cash Flows

The following table summarizes our cash flows for the periods presented:

	Nine Months Ended
	September 30,
	2014			2015
	(in thousands)
Net cash used in operating activities	$	(13,927	)	$	(19,385	)
Net cash used in  investing activities		(3,227	)		(3,441	)
Net cash provided by financing activities		46,009			60,371
Effects of exchange rate on cash and cash equivalents		(131	)		(145	)
Increase in cash and cash equivalents	$	28,724		$	37,400

Operating Activities

Cash used in operating activities is primarily influenced by the amount of cash we invest in personnel and infrastructure to support the anticipated growth of our business and the increase in Total Spend by customers using our platform. Cash used in operating activities has typically been due to net loss, adjusted for non-cash expense items such as depreciation, amortization and stock-based compensation expense, and changes in our operating assets and liabilities as we grow our business. In periods of high growth, our working capital needs may become greater as we remit payment for media purchased through our platform by our Platform Direct and Platform Services customers in advance of receiving payment from our customers. Our average days sales outstanding, or DSO, was 91 days and our average days payable outstanding, or DPO, were 78 days for 2014. We compute our DSO and DPO as of a given date based on our average trade receivables or trade payables, respectively, for the trailing twelve month period divided by, for DSO, daily Total Spend and for DPO, daily cost of revenue and operating expenses, excluding noncash and payroll related expenses, in each case, over such period. The average trade receivables or trade payables are the average of the trade receivables or trade payables balances at the beginning and end of the twelve month period. Daily Total Spend is the spend for the trailing twelve month period divided by 365 days. Daily cost of revenue and operating expenses are the cost of revenue and operating expenses, excluding noncash and payroll related expenses, for the trailing twelve month period divided by 365 days. While we typically experience slow payment by advertising agencies, as is common in our industry, we have historically experienced minimal accounts receivable write-offs.

Cash used in operating activities in the nine months ended September 30, 2014 was $13.9 million, due to net loss of $0.4 million and the $17.4 million reduction in operating assets and liabilities, offset by non-cash expenses totaling $3.9 million. The net change in working capital was due to an increase in accounts receivable of $20.7 million related to the increase in Total Spend and a net increase of $6.6 million in accounts payable and accrued liabilities related to an increase in purchases of media and other liabilities to support the growth of the business.

Cash used in operating activities in the nine months ended September 30, 2015 was $19.4 million, due to net loss of $12.2 million, offset by non-cash expenses totaling $13.5 million, and the $20.6 million effect of changes in operating assets and liabilities. The net change in working capital was due to an increase in accounts receivable of $41.4 million related to the increase in Total Spend and a net increase of $22.5 million in accrued liabilities and accounts payable related to an increase in purchase of media and other liabilities to support the growth of the business.

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We expect cash used by operating activities to fluctuate significantly in future periods as a result of a number of factors, some of which are outside of our control, including the timing of our billings and collections, our operating results, and the timing and amount of our media purchases and other liability payments.

Investing Activities

Cash used by investing activities in the nine months ended September 30, 2014 was $3.2 million, primarily due to purchase of property and equipment and an increase in restricted cash due to issuance of a letter of credit to secure our lease.

Cash used in investing activities in the nine months ended September 30, 2015 was $3.4 million, primarily due to purchase of property and equipment.

Financing Activities

Cash provided by financing activities in the nine months ended September 30, 2014 was $46.0 million, primarily due to the proceeds from the IPO of $46.8 million, net of underwriting discounts, commission and offering costs paid for during the period.

Cash provided by financing activities in the nine months ended September 30, 2015 was $60.4 million, primarily due to net proceeds from the follow-on public offering of $58.3 million, net of underwriting discounts, commission and offering costs paid for during the period, the issuance of common stock under the ESPP and option exercises of $2.1 million.

Off-Balance Sheet Arrangements

We did not have any off-balance sheet arrangements as of September 30, 2015.

Indemnification Agreements

In the normal course of business, we provide customers with indemnification provisions of varying scope against claims of intellectual property infringement by third parties arising from the use of our products. Historically, costs related to these indemnification provisions have not been significant and we are unable to estimate the maximum potential impact of these indemnification provisions on our future results of operations. In addition, we have entered into indemnification agreements with directors and certain officers and employees that will require us, among other things, to indemnify them against certain liabilities that may arise by reason of their status or service as directors, officers or employees. No demands have been made upon us to provide indemnification under such agreements and there are no claims that we are aware of that could have a material effect on our consolidated balance sheet, consolidated statement of operations, consolidated statement of comprehensive loss or consolidated cash flows.

Contractual Obligations and Commitments

On August 31, 2015, we entered into a commitment to purchase media in the amount of $7.5 million to $15 million, depending on the type of media purchased. These purchases can be made at any time from February 15, 2015 through September 30, 2016.

Credit Facilities

As of September 30, 2015, the total outstanding amount of the term loan was $0.3 million and no further amounts were available to be drawn under that facility. This loan bears interest at a fixed annual rate of interest of 4.75%, and we are required to make equal monthly payments of principal plus accrued interest through November 1, 2015, when the loan matures and is due and payable. As of September 30, 2015, we had $1.0 million of outstanding borrowings under the revolving line of credit.

The amended and restated loan and security agreement with Silicon Valley Bank provides for approximately $3.2 million term loan and a $34.0 million revolving line of credit. The agreement includes a financial covenant that requires that we meet certain minimum revenue levels.

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Critical Accounting Policies, Judgments and Estimates

Our consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States, or GAAP. The preparation of these consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue, expenses and related disclosures. We evaluate our estimates and assumptions on an ongoing basis. Our estimates are based on historical experience and various other assumptions that we believe to be reasonable under the circumstances. Our actual results could differ from these estimates.

We believe that the assumptions and estimates associated with revenue recognition, stock-based compensation, capitalized software development costs, and income taxes have the greatest potential impact on our consolidated financial statements. Therefore, we consider these to be our critical accounting policies and estimates. There have been no material changes to our critical accounting policies and significant judgments and estimates as compared to the critical accounting policies and significant judgments and estimates as described in our Annual Report on Form 10-K for the fiscal year ended December 31, 2014.

Recent Accounting Pronouncements

For a description of accounting changes and recent accounting pronouncements, including the expected dates of adoption and estimated effects, if any, on our condensed consolidated financial statements, see Note 1 in the notes to condensed consolidated financial statements of this Form 10-Q.

Item 3. Quantitative and Qualitative Disclosures about Market Risk

We have operations both within the U.S. and internationally, and we are exposed to market risks in the ordinary course of our business. These risks primarily include interest rate and foreign exchange risks.

Interest Rate Fluctuation Risk

Our cash and cash equivalents consist of cash and money market funds. Our borrowings under notes payable and capital lease obligations are generally at fixed interest rates. The primary objective of our investment activities is to preserve principal while maximizing income without significantly increasing risk. Because our cash and cash equivalents have a relatively short maturity, our portfolio’s fair value is relatively insensitive to interest rate changes. We do not believe that an increase or decrease in interest rates of 100 basis points would have a material effect on our operating results or financial condition. In future periods, we will continue to evaluate our investment policy in order to ensure that we continue to meet our overall objectives.

Foreign Currency Exchange Risk

We have limited foreign currency risks related to our revenue and operating expenses denominated in currencies other than the U.S. dollar, principally the Australian dollar, the Canadian dollar, the British pound and the Euro. The volatility of exchange rates depends on many factors that we cannot forecast with reliable accuracy. Although we have experienced and will continue to experience fluctuations in our net loss as a result of transaction gains (losses) related to revaluing certain cash balances, trade accounts receivable balances and trade payables that are denominated in currencies other than the U.S. dollar, we believe such a change will not have a material impact on our results of operations. As our international operations expand, our operating results may be more exposed to fluctuations in the exchange rates of the currencies in which we do business. We use derivative financial instruments to reduce foreign currency exchange risks. We use foreign currency forward contracts to partially mitigate the impact of fluctuations in cash and accounts receivable balances denominated in foreign currency. We do not use these contracts for speculative or trading purposes, nor are they designated as hedges. These contracts typically have a maturity of one month, and we record gains and losses from these instruments in other income (expense), net.

As of September 30, 2015, we had forward foreign exchange contracts to buy $20 million against various foreign currencies.

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Item 4. Control and Procedures  

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our Chief Executive Officer and our Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures as of September 30, 2015. The term “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, means controls and other procedures of a company that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the Securities and Exchange Commission’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure. Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures. Based on the evaluation of our disclosure controls and procedures as of September 30, 2015, our Chief Executive Officer and Chief Financial Officer concluded that, as of such date, our disclosure controls and procedures were effective at the reasonable assurance level.

Changes in Internal Control over Financial Reporting

There was no change in our internal control over financial reporting identified in connection with the evaluation required by Rule 13a-15(d) and 15d-15(d) of the Exchange Act that occurred during the period covered by this report that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Part II. OTHER INFORMATION

Item 1. Legal Proceedings

We are not currently a party to any legal proceedings, litigation, or claims that could materially affect our business, results of operations, cash flows, or financial position. We may, from time to time, be party to litigation and subject to claims incident to the ordinary course of business. As our growth continues, we may become party to an increasing number of litigation matters and claims. The outcome of litigation and claims cannot be predicted with certainty, and the resolution of any future matters could materially affect our future results of operations, cash flows or financial position.

Item 1A. Risk Factors

You should carefully consider the risks described below together with the other information set forth in this Report, which could materially affect our business, financial condition and future results. The risks described below are not the only risks facing our company. Risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition and operating results. If any of the following risks is realized, our business, financial condition, results of operations and prospects could be materially and adversely affected. In that event, the trading price of our common stock could decline.

Risks Related to Our Business

We have a history of losses and we may not achieve or sustain profitability in the future.

We have incurred losses in each fiscal year since our incorporation in 2007 and had an accumulated deficit of $35.5 million as of September 30, 2015. We may not achieve profitability in the future as we anticipate that our operating expenses will increase significantly in the foreseeable future as we continue to invest in research and development to enhance our platform and in sales and marketing to acquire new customers. These efforts may prove more expensive than we currently anticipate, and we may not succeed in increasing our revenue sufficiently to offset these higher expenses. Even if we are successful in increasing our customer base, we may not become profitable in the future or may be unable to maintain any profitability achieved if we fail to increase our revenue and manage our operating expenses or if we incur unanticipated liabilities. Although our revenue has increased substantially in recent periods, we may not be able to sustain this rate of revenue growth. Revenue growth may slow or revenue may decline for a number of reasons, including slowing demand for our offering, increasing competition, lengthening sales cycles, decelerating growth of, or declines in, our overall market, or our failure to capitalize on growth opportunities or to introduce new offerings. We could also incur increased losses as we continue to focus on growing our Platform Direct offering because the sales cycle with those customers tends to be protracted, resulting in the majority of costs associated with sales of our Platform Direct offering being generally incurred up front, while customers are billed over time through our usage-based pricing model. Any failure by us to achieve and maintain profitability could cause the price of our common stock to decline significantly.

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Our limited operating history makes it difficult to evaluate our current business and future prospects.

Although we began our operations in March 2007, we did not launch our platform or begin generating substantial revenue until the second half of 2011. While we have experienced significant growth in recent periods, our short operating history and developing business model make it difficult to evaluate our current business and our future prospects. We have encountered and will continue to encounter risks and difficulties frequently experienced by growing companies in rapidly developing and changing industries, including challenges in forecasting accuracy, determining appropriate investments of our limited resources, market acceptance of our platform and future features and functionality, competition from new and established companies, including those with greater financial and technical resources, acquiring and retaining customers and increasing revenue from existing customers, enhancing our platform and developing new technologies, features and functionality. You should consider our business and prospects in light of the risks and difficulties that we will encounter as we continue to develop our business model. We may not be able to address these risks and difficulties successfully, which would materially harm our business and operating results and cause the market price of our common stock to decline.

We may not maintain our recent revenue growth.

Our revenue growth will depend, in part, on our ability to acquire new customers, gain a larger amount of our existing customers’ advertising spend, continue to innovate and develop new technologies, features and functionality, extend our global footprint and increase our share of and compete successfully in new, growing video advertising markets, and we may fail to do so. A variety of factors outside of our control could affect our revenue growth, including changes in spend budgets of advertisers and the timing and size of their spend. Decisions by advertisers to delay or reduce their advertising spending or divert spending away from video advertising could slow our revenue growth or reduce our revenue. Our success in implementing our strategy of migrating customers from our Platform Services offering to our Platform Direct offering could also slow our revenue growth as we recognize a higher amount of revenue from the same amount of spend associated with our Platform Services offering than with our Platform Direct offering. You should not consider our recent growth rate in revenue as indicative of our future growth.

We may experience quarterly fluctuations in our operating results due to a number of factors which make our future results difficult to predict and could cause our operating results to fall below expectations.

Our quarterly operating results may fluctuate due to a variety of factors, many of which are outside of our control. As a result, comparing our operating results on a period-to-period basis may not be meaningful. You should not consider our past results, including our recent growth rates in terms of advertising spend and revenue, as indicative of our future performance.

In addition to other risk factors listed in this section, factors that may affect our quarterly operating results include the following:

• fluctuations in demand for our platform, including seasonal variations in our customers’ advertising spend;

• the level of advertising spend managed through our platform for a particular quarter and the mix between spend managed through our Platform Direct offering and Platform Services offering;

• budgeting cycles and changes in video advertising budgets of and spending by our customers;

• the length and associated unpredictability of our sales cycle;

• the timing and amount of operating expenses related to the maintenance and expansion of our business, operations and infrastructure;

• the timing and amount of investment in the development of new technologies, and features and functionality of our platform;

• changes in the availability or price of advertising inventory;

• the timing and success of changes in our offerings or those of our competitors;

• changes in our pricing or pricing of our competitors’ solutions and changes in the pricing of video advertising generally;

• network outages or security breaches or the perception that our platform or customer or consumer data is not secure and any associated expenses;

• delay between our payments for advertising inventory purchased through our platform and our subsequent collection of fees from our customers related to that inventory;

• changes in the competitive dynamics of our industry, including consolidation among competitors or customers;

• changes in government regulation applicable to our industry;

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• foreign currency exchange rate fluctuations; and

• general economic and political conditions in our domestic and international markets.

Based upon all of the factors described above, we have a limited ability to forecast our future revenue, costs and expenses, and as a result, our operating results may from time to time fall below our estimates.

If our customers do not maintain and increase their advertising spend through our platform, our revenue growth and results of operations will be adversely affected.

Our contracts and relationships with advertisers generally do not include long-term or exclusive obligations requiring them to use our platform or maintain or increase their advertising spend on our platform. Furthermore, advertisers generally use multiple providers in managing advertising spend. Accordingly, we must convince our customers to use our platform, increase their usage and spend a larger share of their advertising budgets with us, and do so on an on-going basis. We may not be successful at educating and training customers, particularly our newer customers, on the benefits of our platform to increase usage and generate higher levels of advertising spend. If these efforts are unsuccessful or advertisers decide not to continue to maintain or increase their advertising spend through our platform for any other reason, then we may not attract new advertisers or our existing customers may reduce their video advertising spend through or cease using our platform. Therefore, we cannot assure you that advertisers that have generated advertising spend through our platform in the past will continue to generate similar levels of advertising spend in the future or that they will continue to use our platform at all. We may not be able to replace customers who decrease or cease their usage of our platform with new customers that spend similarly on our platform. If our existing customers do not continue to use and increase their use of our platform, or if we are unable to attract sufficient advertising spend on our platform from new customers, our revenue could decline, which would materially and adversely harm our business and results of operations.

The market for video software-based advertising solution for brands is relatively new and evolving. If this market develops slower or differently than we expect, our business, growth prospects and financial condition would be adversely affected.

The substantial majority of our revenue has been derived from customers that purchase digital video advertising through our platform either on a self-serve basis or with us executing campaigns for them. We expect that spend on video advertising will continue to be our primary source of revenue for the foreseeable future, and that our revenue growth will depend largely on increasing video advertising spend through our platform. The market for digital video advertising is an emerging market and today advertisers generally devote a smaller portion of their advertising budgets to digital video advertising than to traditional advertising methods, such as TV, newspapers, radio and billboards. Our current and potential customers may find digital video advertising to be less effective than other brand advertising methods, and they may reduce their spending on digital video advertising as a result. To date, digital advertising has been primarily for performance-based advertising, or relatively simple display advertising such as banner ads on websites and, until recently, was principally focused on online channels such as desktops. Emerging channels such as mobile and social media are unproven and may not develop into viable channels. The future growth of our business could be constrained by both the level of acceptance and expansion of digital video advertising as a format and emerging digital video advertising channels, including mobile video, connected TV, social video and TV formats such as video on demand, as well as the continued use and growth of existing channels. To date, our revenue has been primarily derived from advertising served to desktops. Even if these new channels become widely adopted, advertisers may not increase their advertising spend through platforms such as ours. If the market for digital video advertising deteriorates, develops more slowly than we expect or the shift from traditional advertising methods to digital video advertising does not continue, or there is a reduction in demand for video advertising caused by weakening economic conditions, decreases in corporate spending, perception that video advertising is less effective than other media or otherwise, it could reduce demand for our offerings, which could decrease revenue or otherwise adversely affect our business.

We have recently added the capability to buy linear television advertising using our platform. The market for software-based solutions for linear television advertising is new and unproven. Our current and potential customers may find software-based solutions for linear television advertising purchasing to be less effective than traditional methods, and they may determine not to utilize such solutions. The future growth of our business could be constrained by both the level of acceptance and expansion of the market for software-based solutions for linear television advertising. If the market for software-based solutions for linear television advertising develops more slowly than we expect, it could reduce demand for our offerings, which could decrease revenue or otherwise adversely affect our business.

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We may not be able to compete successfully against current and future competitors.

We operate in a rapidly evolving and highly competitive market, subject to changing technology, branding objectives and customer demands and with many companies providing competing solutions. We compete primarily with companies developing solutions to automate the purchase of video advertising impressions across multiple sources of inventory. We also compete with other companies that address certain aspects of the online video advertising market, including demand-side platforms and video-focused ad networks, and in-house tools and custom solutions currently used by brand advertisers and their agencies and by publishers to manage advertising activities. In addition, we compete for advertising spend with large entities that offer video advertising services as part of a larger solution for digital media buying. In the future, we may compete with companies developing comprehensive marketing platforms. Other companies that offer analytics, mediation, exchange or other third-party specific technologies may also compete with us. As our platform evolves and we introduce new technologies, features and functionality of our platform, we may become subject to additional competition. Some of our current and prospective competitors in the broader digital advertising market have substantially greater resources and longer histories than us in the digital advertising space, may actively seek to serve our market and have the power to significantly change the nature of the marketplace to their advantage. These companies could develop and offer new solutions that directly compete with ours or leverage their position to make changes to their existing platforms that could be disadvantageous to our competitive position. We expect competition to increase with changes in the competitive dynamics of our industry, including increasing consolidation among our competitors, customers and partners.

Increased competition may result in reduced pricing for our platform, longer sales cycles or a decrease of our market share, any of which could negatively affect our revenue and future operating results and our ability to grow our business. A number of competitive factors could cause us to lose potential sales or to sell at lower prices or at reduced margins, including, among others:

• competitors may establish or strengthen relationships with brands, agencies, sources of inventory or other parties, thereby limiting our ability to promote our platform and generate revenue;

• competitors could introduce solutions that are similar to, or broader, than ours or comprehensive platforms that provide integrated solutions for multiple advertising channels including display, mobile and video;

• competitors could reduce the prices they charge to brand advertisers and agencies;

• companies may enter our market by expanding their platforms or acquiring a competitor; and

• companies marketing search, social, display, mobile or web analytics services could bundle video advertising solutions or offer such products at a lower price as part of a larger product sale.

In addition, many of our current and potential competitors, such as Google, AOL and Adobe, have greater customer relationships and financial, marketing and technical resources than we do, allowing them to leverage a larger customer base, adopt more aggressive pricing policies, and devote greater resources to the development, promotion and sale of their products, services and solutions, including products that may be based on new technologies or standards, than we can. Some of these large competitors also have substantial proprietary video advertising inventory that may provide them with competitive advantages, including far greater access to Internet user data, the ability to significantly influence pricing for video advertising inventory and the ability to control access to proprietary inventory. If our competitors’ solutions become more accepted than our solution, our competitive position will be impaired and we may not be able to increase our revenue or may experience decreased gross margins.

We may not be able to compete successfully against current and future competitors. If we cannot compete successfully, our business, results of operations and financial condition could be negatively impacted.

If we are successful at increasing adoption of our self-serve platform, we may become dependent on a limited number of customers for a large portion of our revenue, which could impact the predictability of our revenue and adversely impact our results of operations.

As and to the extent our self-serve platform is adopted by major brands and other large advertisers, we may become more dependent upon a limited number of customers for a larger portion of our revenue. Since large advertisers tend to spend a much greater amount on advertising campaigns than our typical customers have in the past, it would be difficult to maintain our revenue growth rate without increases in spending from these customers. It also would be difficult to replace any revenue generated by these customers to the extent they lower their spend through our platform. Accordingly, if our revenue concentration increases and our largest customers do not generate revenue at the levels or within the timeframes that we expect, our ability to maintain or increase our revenue and meet our quarterly guidance will be adversely affected. Additionally, larger customers often seek to gain greater pricing concessions which can adversely impact our results of operations.

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A substantial portion of our business is sourced through advertising agencies that do not pay us until they receive payment from the brand, therefore increasing the length of time between our payment for media inventory and our receipt of payment for use of our platform, and our ability to collect for non-payment may be limited to the brand, increasing our risk of non-payment.

Substantially all of our Platform Services revenue and a substantial majority of our Platform Direct revenue is sourced through advertising agencies. We contract with advertising agencies as an agent for the brand. We remit payment for media inventory purchased through our platform by our Platform Direct and Platform Services customers in advance of receiving payment from them as the advertising agency does not pay us for use of our platform until it has received payment from the brand. This payment process will increasingly consume working capital if we continue to be successful in growing our business. In addition, we typically experience slow payment by advertising agencies as is common in our industry. In this regard, we had average days sales outstanding, or DSO, of 91 days, and average days payable outstanding, or DPO, of 78 days for 2014. We compute our DSO and DPO as of a given date based on our average trade receivables or trade payables, respectively, for the trailing twelve month period divided by, for DSO, daily Total Spend and for DPO, daily cost of revenue and operating expenses, excluding noncash and payroll related expenses, in each case, over such period. The average trade receivables or trade payables are the average of the trade receivables or trade payables balances at the beginning and end of the twelve month period. Daily Total Spend is the spend for the trailing twelve month period divided by 365 days. Daily cost of revenue and operating expenses are the cost of revenue and operating expenses, excluding noncash and payroll related expenses, for the trailing twelve month period divided by 365 days. Many of our contracts with advertising agencies provide that if the brand does not pay the agency, the agency is not liable to us, and we must seek payment solely from the brand. Contracting with these agencies, which in certain cases have or may develop high-risk credit profiles, subjects us to greater credit risk than where we contract with brands directly. This credit risk may vary depending on the nature of an advertising agency’s aggregated brand advertiser base. Any write-offs for bad debt could have a material adverse effect on our results of operations for the periods in which the write-offs occur. Even if we are not paid, we are still obligated to pay for the advertising we have purchased for the advertising campaign, and as a consequence, our results of operations and financial condition would be adversely impacted.

Our business depends in part on advertising agencies and their holding companies as intermediaries, and this may adversely affect our ability to attract and retain business.

For 2014, over 4,000 brands executed campaigns through our platform, directly or through an agency. Many brands rely upon advertising agencies in planning and purchasing advertising. Although we maintain relationships with brands, we often do not contract with them directly. In cases where we do not have a direct contractual relationship with the brand, we sell to advertising agencies that utilize our advertising solutions on behalf of their customers. Each advertising agency allocates advertising spend from brands across numerous channels and has no obligation to work with us as it embarks on video advertising campaigns. Accordingly, if we fail to maintain satisfactory relationships with an advertising agency, we risk losing business from the brands represented by that agency. If the advertising agency is owned by a holding company, this risk is magnified because we also risk losing business from the other agencies owned by such holding company and the brand advertisers those agencies represent. In addition, customer relationships with holding company media trading desks may adversely affect our business with advertising agencies affiliated with the holding company because some holding companies may seek to consolidate media buying to one trading desk and restrict their affiliated advertising agencies from relationships with providers that have a direct relationship with the trading desk. Because advertising agencies act as intermediaries for multiple brands, our customer base is more concentrated than might be reflected by the number of brands that use our platform. In addition, these intermediary relationships may impede our brand-building efforts, making it more difficult for us to achieve widespread brand awareness that is critical for broad customer adoption of our platform.

Our sales cycle can be long and unpredictable and require considerable time and expense before executing a customer agreement, which may make it difficult to project when, if at all, we will obtain new customers and when we will generate revenue from those customers.

The sales cycle for our Platform Direct business, from initial contact with a potential lead to contract execution and implementation, typically takes significant time and is difficult to predict. Our sales cycle in some cases has been up to nine months or more. Our sales efforts involve educating our customers about the use, technical capabilities and benefits of our platform. Some of our customers undertake a significant evaluation process that frequently involves not only our platform but also the offerings of our competitors. This process can be costly and time-consuming. As a result, it is difficult to predict when we will obtain new customers and begin generating revenue from these new customers. As part of our sales cycle, we may incur significant expenses before executing a definitive agreement with a prospective customer and before we are able to generate any revenue from such agreement. We have no assurance that the substantial time and money spent on our sales efforts will generate significant revenue. If conditions in the marketplace generally or with a specific prospective customer change negatively, it is possible that no definitive agreement will be executed, and we will be unable to recover any of these expenses. Even if our sales efforts result in obtaining a new customer, under our usage-based pricing model, the customer controls when and to what extent it uses our platform and it may not use our platform sufficiently to justify the expenses incurred to acquire the customer and integrate the customer’s data in our platform and related training and support. If we are not successful in targeting, supporting and streamlining our sales processes and if revenue expected to

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be generated from a prospective customer is not realized in the time period expected or not realized at all, our ability to grow our business, and our operating results and financial condition may be adversely affected. If our sales cycles lengthen, our future revenue could be lower than expected, which would have an adverse impact on our consolidated operating results and could cause our stock price to decline.

Our business and operations have experienced rapid growth in recent periods, which has placed, and may continue to place, significant demands on our management and infrastructure. If we fail to manage our growth effectively, we may be unable to execute our business plan, maintain high levels of service or address competitive challenges adequately.

We increased our number of full-time employees from 57 as of December 31, 2011 to 532 as of September 30, 2015. Our growth has placed, and may continue to place, a significant strain on our managerial, administrative, operational, financial and other resources as these personnel are integrated into and become productive within our organization. We intend to further expand our overall headcount and operations both domestically and internationally, with no assurance that our business or revenue will continue to grow to offset our investment in research and development and sales and marketing. Maintaining and growing a global organization and managing a geographically dispersed workforce will require substantial management effort, the allocation of valuable management resources and significant additional investment in our infrastructure. In this regard we will be required to continue to improve our operational, financial and management controls and our reporting procedures and we may not be able to do so effectively. Further, to accommodate our expected growth we must continually improve and maintain our technology, systems and network infrastructure. As such, we may be unable to manage our expenses effectively in the future, which would negatively impact our gross margin or operating expenses in any particular quarter. If we fail to manage our anticipated growth and change in a manner that does not preserve the key aspects of our corporate culture, the quality of our platform may suffer, which could negatively affect our brand and reputation and harm our ability to retain and attract customers.

Seasonal fluctuations in video advertising spend impact our results of operations and cash flows.

Our results of operations and cash flows vary from quarter to quarter due to the seasonal nature of advertising spending. For example, many advertisers devote a disproportionate amount of their advertising budgets to the fourth quarter of the calendar year to coincide with increased holiday purchasing. In contrast, the first quarter of the calendar year is typically the slowest in terms of advertising spend. To the extent that seasonal fluctuations become more pronounced, or are not offset by other factors, our results of operations and operating cash flows could fluctuate materially from period to period.

We use a limited number of third-party service providers and data centers. Any disruption of service could harm our business.

The technical infrastructure for our platform is managed through a combination of third-party web hosting services providers, or third-party service providers, and our own servers which are located at a third-party data center facility. We do not control the operation of the third-party service providers or the operation of the third-party data center facility nor do we have long term agreements with the third-party service provider and data center facility that we utilize. The third-party service providers and owner of the data center facility have no obligation to continue to provide these services to us on commercially reasonable terms, or at all. If we are unable to renew these agreements on commercially reasonable terms, we may be required to use a new service provider or transfer to a new facility or facilities, and we may incur significant costs and possible service interruption in connection with doing so.

The facilities of third-party service providers and data center are vulnerable to damage or service interruption resulting from human error, intentional bad acts, earthquakes, hurricanes, floods, fires, war, terrorist attacks, power losses, hardware failures, systems failures, telecommunications failures and similar events. Moreover, we have not implemented a disaster recovery capability whereby we maintain a back-up copy of our platform permitting us to immediately switch over to the back-up platform in the event of damage or service interruption at our data center. The occurrence of a natural disaster or an act of terrorism, any outages or vandalism or other misconduct, or a decision to close the facility without adequate notice or other unanticipated problems could result in lengthy interruptions in our platform’s performance, any of which could damage our reputation and materially and adversely affect our operating results and future prospects.

Any changes in service levels at the facilities or any errors, defects, disruptions or other performance problems at or related to the facilities that affect our platform could harm our reputation and may damage our customers’ businesses. Interruptions in our platform’s performance might reduce our revenue, subject us to potential liability, or result in reduced usage of our platform. In addition, some of our customer contracts require us to issue credits for downtime in excess of certain levels and the issuance of any credits or make-goods could harm our operating results and financial condition.

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We also depend on third-party Internet-hosting providers and continuous and uninterrupted access to the Internet through third-party bandwidth providers to operate our business. If we lose the services of one or more of our Internet-hosting or bandwidth providers for any reason or if their services are disrupted, for example due to viruses or “denial-of-service” or other attacks on their systems, or due to human error, intentional bad acts, power loss, hardware failures, telecommunications failures, fires, wars, terrorist attacks, floods, earthquakes, hurricanes, tornadoes or similar events, we could experience disruption in our ability to offer our platform or we could be required to retain the services of replacement providers, any of which could increase our operating costs and harm our business and reputation.

As a result of our customers’ increased usage of our platform, we will need to continually improve our hosting infrastructure.

We have experienced significant growth in the number of customers, transactions and data that our hosting infrastructure supports. We seek to maintain sufficient excess capacity in our infrastructure to meet the needs of all of our customers. We also seek to maintain excess capacity to facilitate the increase in new customers and the expansion of existing customer advertising spend on our platform. For example, if we secure a large customer or a group of customers which require significant amounts of bandwidth or storage, we may need to increase bandwidth, storage, power or other elements of our application architecture and our infrastructure, and our existing systems may not be able to scale in a manner satisfactory to our existing or prospective customers.

The amount of infrastructure needed to support our customers is based on our estimates of anticipated usage. We will need to expand our infrastructure to meet anticipated increase in usage, for which we expect to incur additional costs. In addition, if we were to experience unforeseen increases in usage, we could be required to increase our infrastructure investments further and during a time other than we expect. As use of our platform grows, we will need to devote additional resources to improving our application architecture and our infrastructure in order to maintain the performance of our platform. We may need to incur additional costs to upgrade or expand our computer systems and architecture in order to accommodate increased or expected increases in demand. If we incur these costs, our gross margin would be adversely impacted.

We must develop and introduce enhancements and new features and functionality that achieve market acceptance or that keep pace with technological developments to remain competitive in our evolving industry.

We operate in a dynamic market characterized by rapidly changing technologies and industry and legal standards. The introduction of new video advertising solutions by our competitors, the market acceptance of solutions based on new or alternative technologies, or the emergence of new video advertising industry standards could render our platform obsolete. Our ability to compete successfully, attract new customers and increase revenue from existing customers depends in large part on our ability to enhance and improve our existing platform and to continually introduce or acquire new technologies and features and functionality demanded by the market we serve. The success of any enhancement or new solution depends on many factors, including timely completion, adequate quality testing, appropriate introduction and market acceptance. Any new solution, product or feature that we develop or acquire may not be introduced in a timely or cost-effective manner, may contain defects or may not achieve the broad market acceptance necessary to generate significant revenue. If we are unable to anticipate or timely and successfully develop or acquire new offerings or features or enhance our existing platform to meet evolving customer requirements, our business and operating results will be adversely affected.

Material defects or errors in our platform could result in customer dissatisfaction and harm our reputation, result in significant costs to us and impair our ability to sell our platform.

The software applications underlying our platform are inherently complex and may contain material defects or errors, which may cause disruptions in availability, misallocation of advertising spend or other performance problems. Any such errors, defects, disruptions in service or other performance problems with our platform could negatively impact our business and our customers’ businesses or the success of their advertising campaigns and causing customer dissatisfaction and harm to our reputation. If we have any errors, defects, disruptions in service or other performance problems with our platform, customers may reduce their usage or delay or withhold payment to us, which could result in an increase in our provision for doubtful accounts or lengthen our collection cycles for accounts receivable. Such performance problems could also result in customers making warranty or other claims against us, our giving credits to our customers toward future advertising spend or costly litigation. As a result, material defects or errors in our platform could have a material adverse impact on our business and financial performance.

The costs incurred in correcting any material defects or errors in our platform may be substantial and could adversely affect our operating results. After the release of new versions of our software, defects or errors may be identified from time to time by our internal team and by our customers. We implement bug fixes and upgrades as part of our regularly scheduled system maintenance. If we do not complete this maintenance according to schedule or if customers are otherwise dissatisfied with the frequency and/or duration of our maintenance, customers could reduce their usage of our platform or delay or withhold payment to us, or cause us to issue credits, make refunds or pay penalties.

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Our business depends in part on the success of our strategic relationships with third parties.

Our business depends in part on our ability to continue to successfully manage and enter into successful strategic relationships with third parties. We currently have and are seeking to establish new relationships with third parties to develop integrations with complementary technologies, sources of inventory, such as Google, and data vendors such as Nielsen. For example, in order for customers to target ads in ways they desire and otherwise optimize and verify campaigns, our platform must have access to data regarding Internet user behavior and reports with demographic information regarding Internet users. We depend on various third parties to provide this audience data and demographic reporting. Maintaining and expanding our strategic relationships with third parties is critical to our continued success. Further, our relationships with these third parties are typically non-exclusive and do not prohibit the other party from working with our competitors, and in some cases our business partners also offer products or services that compete with ours, which makes these relationships more complicated and may over time lead to changes in our relationship including our loss of access to certain inventory or data supplied by these partners. These relationships may not result in additional customers or enable us to generate significant revenue and a change in these relationships could result in loss of revenue. Identifying suitable business partners and negotiating, documenting and maintaining relationships with them require significant time and resources. If we are unsuccessful in establishing or maintaining our relationships with these third parties, our ability to successfully execute campaigns, compete in the marketplace or to grow our revenue could be impaired and our operating results would suffer.

Our business model depends upon our ability to continue to access advertising inventory that we do not own.

Our platform depends on access to advertising inventory controlled by publishers and various other providers, such as public ad exchanges, supply-side platforms, private marketplaces, ad networks and direct premium publishers. In particular, we rely on continued access to premium ad inventory in high-quality and brand-safe environments, viewable to consumers across multiple screens. We do not own the inventory of advertising opportunities upon which our business depends and, therefore, we might not always have access to inventory of sufficient quality or volume to meet the needs of our customers’ campaigns. As a result, we may have limited visibility to our future access to inventory, especially premium ad inventory and inventory in international markets. Companies such as ad networks make media buying commitments to publishers, and may compete with us and restrict our access to media inventory of those publishers. Companies such as ad exchanges charge both publishers and advertisers fees and may be able to charge advertisers lower fees than us. In addition, many publishers sell a portion of their advertising inventory directly to advertisers, and publishers may seek to do so increasingly in the future. If that were to occur, we may have fewer opportunities to provide our customers access to inventory, which would harm our ability to grow our business and our financial condition and operating results would be adversely affected.

Furthermore, as the number of competing intermediaries that purchase advertising inventory from Real Time Bidding or  RTB exchanges and that utilize advertising solutions providers continues to increase, intermediaries or their bidding processes may favor other bidders and we may not be able to compete successfully for advertising inventory available on RTB exchanges. Even if our bids are successful, the inventory may be of low quality or misrepresented to us, despite our attempts to prevent fraud and conduct quality assurance checks on inventory and we could be subject to liability and our business could be harmed.

In connection with Platform Services arrangements, we commit to delivery of a campaign at a fixed price in advance of acquiring the advertising inventory required for the campaign, exposing us to the risk that we may be unable to fulfill these commitments cost-effectively or at all.

In order to execute and deliver campaigns under our Platform Services arrangements, we generally enter into binding insertion orders, or IOs, with fixed price commitments which are determined prior to the launch of an advertising campaign. We do not own or otherwise control the inventory necessary to fulfill these IOs. Further, in fulfilling IO commitments, we generally purchase advertising inventory on a real-time basis during the course of the advertising campaign period, and we generally do not have fixed priced sources of supply of such inventory. Accordingly, we are not assured of having access to inventory of sufficient quality or quantity to meet the needs of our customers’ campaigns on a cost-effective basis or at all. If we are unable to obtain inventory cost-effectively, or at all, our gross margins could be negatively affected or we could be unable to fulfill our obligations under the IO, which would have a negative impact on our ability to attract and retain customers, potentially damage our reputation, expose us to liability and harm our revenue and growth.

Our Platform Services customers are not obligated to pay for advertising inventory that is not consistent with their campaigns. Since we have no recourse to suppliers, we assume full risk of loss for inventory that is not accepted by our customers.

Our Platform Services customers are not obligated to pay for advertising impressions that are not consistent with the terms of their IO with us. Further, the sources of our advertising impressions generally make no representations regarding specific characteristics of an impression relevant to any campaign. In addition, we have made and expect to continue to make purchasing decisions during the fulfillment of campaigns resulting in the purchase of impressions that are not acceptable to the advertiser. These decisions may result from mistakes due to human error by our personnel or a systems error. In other cases, third-party verification

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technology used by the customer may reach a different conclusion about the suitability of the inventory. In any of these cases, the advertiser may reject impressions that do not meet the terms of the IO, we may be required to provide a credit or be considered to be in breach of our obligations and we would have no recourse to the supplier. As a result, our gross margins and our ability to attract and retain customers could be negatively affected, we could be exposed to liability and our revenue and growth could be harmed.

If we fail to detect fraudulent or unacceptable ad placements, or if we serve advertisements on websites with inappropriate content, our reputation will be damaged, advertisers may reduce the use of or stop using our platform, and we may incur liabilities.

Our business depends in part on providing our advertisers with services that are trusted and safe for their brands and that provide the anticipated value. We frequently have contractual commitments to take reasonable measures to prevent advertisements from appearing on websites with inappropriate content or on certain websites that our advertisers may identify. Our advertisers also expect that ad placements will not be misrepresented, such as auto-play in banner placements marketed as pre-roll inventory, and that ad impressions represent the legitimate activity of human internet users. We use proprietary technologies and third party services in our efforts to detect and block inventory on websites with inappropriate content, misrepresented ad placements and fraudulent bot generated impressions. However, technologies utilized by bad actors are constantly evolving and preventing and combating fraud and inappropriate content requires constant vigilance and investment of time and resources. We may not always be successful in our efforts to do so. We may serve advertisements on inventory that is objectionable to our advertisers, and our software may also inadvertently purchase inventory on behalf of our advertisers that proves to be unacceptable for advertising campaigns, such as fraudulent bot generated impressions. In addition, negative publicity around fraudulent digital advertising placements may adversely impact the perceptions of advertisers regarding programmatic purchasing of digital advertising. As a result, we may lose the trust of our advertisers, which would harm our brand and reputation, our advertisers may reduce the use of or stop using our platform, we may be exposed to liabilities or the need to provide credits or refunds, and our business and financial performance may be harmed.

If our security measures are breached or unauthorized access to customer data or our data is otherwise obtained, our platform may be perceived as not being secure, customers may reduce the use of or stop using our platform and we may incur significant liabilities.

Security breaches could result in the loss of information, litigation, indemnity obligations and other liability. We collect, store and transmit information of, or on behalf of, our advertisers. While we have security measures in place, our systems and networks are subject to ongoing threats and therefore these security measures may be breached as a result of third-party action, including cyber-attacks or other intentional misconduct by computer hackers, employee error, malfeasance or otherwise. This could result in one or more third parties obtaining unauthorized access to our customers’ data or our data, including intellectual property and other confidential business information. Because techniques used to obtain unauthorized access or to sabotage systems change frequently and generally are not recognized until launched against a target, we may be unable to anticipate these techniques or to implement adequate preventative measures. Third parties may also attempt to fraudulently induce employees or customers into disclosing sensitive information such as user names, passwords or other information in order to gain access to our customers’ data or our data, including intellectual property and other confidential business information. If an actual or perceived breach of our security occurs, the market perception of the effectiveness of our security measures could be harmed, we could lose potential sales and existing customers or we could incur other liability.

Any failure to protect our intellectual property rights could impair our ability to protect our proprietary technology and our brand.

Our success and ability to compete depend in part upon our intellectual property. We primarily rely on intellectual property laws, including trade secret, copyright, trademark and patent laws in the United States and abroad, and use contracts, confidentiality procedures, non-disclosure agreements, employee disclosure and invention assignment agreements and other contractual rights to protect our intellectual property. However, the steps we take to protect our intellectual property rights may be inadequate or we may be unable to secure intellectual property protection for all of our platform.

If we are unable to protect our intellectual property, our competitors could use our intellectual property to market products, services or solutions similar to ours and our ability to compete effectively would be impaired. Moreover, others may independently develop technologies that are competitive to ours or infringe our intellectual property. Any of our intellectual property rights may be challenged by others or invalidated through administrative processes or litigation. The enforcement of our intellectual property rights depends on our legal actions against these infringers being successful, but we cannot be sure these actions will be successful, even when our rights have been infringed. In addition, we might be required to spend significant resources to monitor and protect our intellectual property rights, and our efforts to enforce our intellectual property rights may be met with defenses, counterclaims and countersuits attacking the validity and enforceability of our intellectual property rights. Litigation to protect and enforce our intellectual property rights could be costly, time-consuming and distracting to management, whether or not it is resolved in our favor, and could ultimately result in the impairment or loss of portions of our intellectual property. Any patents issued in the future may not provide us with competitive advantages or may be successfully challenged by third parties.

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Furthermore, legal standards relating to the validity, enforceability and scope of protection of intellectual property rights are uncertain. Effective protection of our intellectual property may not be available to us in every country in which our platform are available. The laws of some foreign countries may not be as protective of intellectual property rights as those in the United States, and mechanisms for enforcement of intellectual property rights may be inadequate. Accordingly, despite our efforts, we may be unable to prevent third parties from infringing upon or misappropriating our intellectual property.

We could incur substantial costs as a result of any claim of infringement of another party’s intellectual property rights.

In recent years, there has been significant litigation involving patents and other intellectual property rights. Companies in the Internet and technology industries are increasingly bringing and becoming subject to suits alleging infringement of proprietary rights, particularly patent rights, and our competitors may hold patents or have pending patent applications, which could be related to our business. These risks have been amplified by the increase in third parties, or non-practicing entities, whose sole primary business is to assert such claims. We have received in the past, and expect to receive in the future, notices that claim we or our customers using our platform have misappropriated or misused other parties’ intellectual property rights. If we are sued by a third party that claims that our technology infringes its rights, the litigation could be expensive and could divert our management resources. We do not currently have an extensive patent portfolio of our own, which may limit the defenses available to us in any such litigation.

In addition, in many instances, we have agreed to indemnify our customers against certain claims that our platform infringes the intellectual property rights of third parties. The results of any intellectual property litigation to which we might become a party, or for which we are required to provide indemnification, may require us to do one or more of the following:

• cease offering or using technologies that incorporate the challenged intellectual property;

• make substantial payments for legal fees, settlement payments or other costs or damages;

• obtain a license, which may not be available on reasonable terms, to sell or use the relevant technology; or

• redesign technology to avoid infringement.

If we are required to make substantial payments or undertake any of the other actions noted above as a result of any intellectual property infringement claims against us or any obligation to indemnify our customers for such claims, such payments or costs could have a material adverse effect upon our business and financial results. Furthermore, our business could be adversely affected by any significant disputes between us and our customers as to the applicability or scope of our indemnification obligations to them.

Our use of open source technology could impose limitations on our ability to commercialize our platform.

We use open source software in our platform. Some open source software licenses require users who distribute open source software as part of their software to publicly disclose all or part of the source code to such software and/or make available any derivative works of the open source code on unfavorable terms or at no cost. The terms of various open source licenses have not been interpreted by the courts, and there is a risk that such licenses could be construed in a manner that imposes unanticipated conditions or restrictions on our ability to market our platform. While we monitor our use of open source software and try to ensure that none is used in a manner that would require us to disclose our source code or that would otherwise breach the terms of an open source agreement, such use could inadvertently occur and we may be required to release our proprietary source code, pay damages for breach of contract, re-engineer our applications, discontinue sales in the event re-engineering cannot be accomplished on a timely basis or take other remedial action that may divert resources away from our development efforts, any of which could cause us to breach customer contracts, harm our reputation, result in customer losses or claims, increase our costs or otherwise adversely affect our business and operating results.

Expanding our international operations subjects us to new challenges and risks.

As of September 30, 2015, we had offices in nine countries outside the United States, and as we continue to expand our customer base outside the United States, our business is increasingly susceptible to risks associated with international operations. However, we have a limited operating history outside the United States, and our ability to manage our business and conduct our operations internationally requires considerable management attention and resources and is subject to particular challenges of supporting a rapidly growing business in an environment of diverse cultures, languages, customs, tax laws, legal systems, alternate dispute systems and regulatory systems. The risks and challenges associated with international expansion include:

• continued localization of our platform, including translation into foreign languages and associated expenses;

• the need to support and integrate with local advertisers, agencies, publishers and partners;

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• competition with service providers that have greater experience in the local markets than we do or who have pre-existing relationships with potential customers in those markets;

• compliance with multiple, potentially conflicting and changing governmental laws and regulations, including employment, tax, privacy and data protection laws and regulations such as the EU Data Privacy Directive;

• compliance with anti-bribery laws, including compliance with the Foreign Corrupt Practices Act and the U.K. Anti-Bribery Act;

• difficulties in invoicing and collecting in foreign currencies and associated foreign currency exposure;

• difficulties in staffing and managing foreign operations and the increased travel, infrastructure and legal compliance costs associated with international operations;

• different or lesser protection of our intellectual property rights;

• difficulties in enforcing contracts and collecting accounts receivable, longer payment cycles, higher levels of credit risk and other collection difficulties;

• compliance with applicable laws of taxing jurisdictions where we conduct business and applicable U.S. tax laws as they relate to our international operations, the complexity and adverse consequences of such tax laws and potentially adverse tax consequences due to changes in such tax laws;

• restrictions on repatriation of earnings; and

• regional economic and political conditions.

As a result of these risks, any potential future international expansion efforts that we may undertake will not be successful.

Fluctuations in the exchange rate of foreign currencies could result in currency transactions losses.

We currently have foreign sales and accounts receivable denominated in multiple currencies including Australian dollars, British pounds, Canadian dollars, Euros and Singapore dollars. In addition, we purchase advertising in local currencies and incur a portion of our operating expenses in the currencies of the countries where we have offices. To the extent that our revenue from international operations increases and the scope of our international operations grows, our operating results will become more susceptible to changes in currency exchange rates. We face exposure to adverse movements in currency exchange rates, which may cause our revenue and operating results to differ materially from expectations. A decline in the U.S. dollar relative to foreign currencies would increase our non-U.S. revenue when translated into U.S. dollars. Conversely, if the U.S. dollar strengthens relative to foreign currencies, our revenue from international operations would be adversely affected. Our operating results could be negatively impacted depending on the amount of cost of revenue or operating expense denominated in foreign currencies. As exchange rates vary and our mix of U.S. and foreign currency denominated transactions or expenses changes, revenue, cost of revenue, operating expenses and other operating results, when translated, may differ materially from expectations. We use foreign currency forward contracts to mitigate a portion of our foreign currency exposure.  However, these derivative contracts may be limited in the protection they provide us from exposure to foreign exchange rate fluctuations and involve costs and risks of their own, such as ongoing management time and expertise, external costs to implement the contracts and potential accounting implications.  Additionally, our hedging activities rely on our ability to forecast accurately and could expose us to additional risks that could adversely affect our financial condition and operating results and could contribute to increased losses as a result of volatility in the foreign currency market.

Unfavorable conditions in the global economy could limit our ability to grow our business and negatively affect our operating results.

Revenue growth and potential profitability of our business depends on the level of video advertising spend in the markets we serve. To the extent that weak economic conditions cause our customers and potential customers to freeze or reduce their advertising budgets, particularly those for digital video advertising, demand for our platform may be negatively affected. Historically, economic downturns have resulted in overall reductions in advertising spend. If economic conditions deteriorate or do not materially improve, our customers and potential customers may elect to decrease their advertising budgets or defer or reconsider software and service purchases, which would limit our ability to grow our business and negatively affect our operating results.

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Our business depends on our founders and retaining and attracting qualified management and technical personnel and maintaining or expanding our sales and marketing capabilities.

Our success depends upon the continued service of Brett Wilson, our co-founder, President and Chief Executive Officer, other members of our senior management team and key technical employees, as well as our ability to continue to attract and retain additional highly qualified management and operating personnel. We do not maintain key person life insurance policies on any of our employees. While we have offer letters with certain of our key employees, we do not have fixed term employment agreements with Mr. Wilson or any of our other key employees. Each of Mr. Wilson, other executive officers, key technical personnel and other employees could terminate his or her relationship with us at any time. Our business also requires skilled engineering, product and sales personnel, who are in high demand and are difficult to recruit and retain. As we continue to innovate and develop our platform and expand into additional geographic markets, we will require personnel with expertise in these areas. Competition for qualified employees is intense in our industry and particularly so in the San Francisco Bay Area, California, where most of our technical employees are based. The loss of Mr. Wilson or any other member of our senior management team or, even a few qualified employees, or an inability to attract, retain and motivate additional highly skilled employees required for the planned expansion of our business, could delay or prevent the achievement of our business objectives and could materially harm our business and our customer relationships.

Our ability to achieve revenue growth in the future will depend, in part, on our success in recruiting, training and retaining sufficient numbers of sales personnel. These new employees require significant training and experience before they achieve full productivity. For internal planning purposes, we assume that it will take approximately nine months before a newly hired sales representative is fully trained and productive in selling our platform. This amount of time may be longer for sales personnel focused on new geographies or specific market segments. As a result, the cost of hiring and carrying new representatives cannot be offset by the revenue they produce for a significant period of time, if at all. Our recent hires and planned hires may not become productive as quickly as we would like or to the extent we expect, and we may not be able to hire or retain sufficient numbers of qualified individuals in the markets where we do business. Our business will be seriously harmed if these efforts do not work as planned or generate a corresponding significant increase in revenue.

If the use of “third-party cookies” or other tracking technologies (including pixels) is rejected by Internet users, restricted or otherwise subject to unfavorable terms, such as by non-governmental entities, our performance may decline and we may lose customers and revenue.

Some features of our platform use cookies or other technologies, such as pixels, which we refer to as cookies. Our cookies are known as “third-party cookies” because they are placed on individual browsers when Internet users visit a website on which we serve an ad. These cookies are placed through an Internet browser on an Internet user’s computer and correspond with a data set that we keep on our servers. Our cookies record non-personal information about Internet users’ interactions with our advertiser customers through a browser while the cookie is active. We use these cookies to help us achieve our brand advertisers’ campaign goals, to help us ensure that the same Internet user does not see the same advertisement multiple times, to report aggregate information to our advertisers regarding the performance of their advertising campaigns, and to detect and prevent fraudulent activity. We also use data from cookies to help us decide whether to bid on, and how to price, an opportunity to place an advertisement in a certain location, at a given time, in front of a particular Internet user. If our access to cookie data is reduced, our ability to conduct our business in the current manner may be affected and thus undermine the effectiveness of our platform.

Internet users may easily block and/or delete cookies (e.g., through their browsers or “ad blocking” software). The most commonly used Internet browsers (Chrome, Firefox, Internet Explorer, and Safari) allow Internet users to modify their browser settings to prevent cookies from being accepted by their browsers, or are set to block third-party cookies by default. If more browser manufacturers and Internet users adopt these settings or delete their cookies more frequently than they currently do, our business could be harmed. Some government regulators (discussed below) and privacy advocates have suggested creating a “Do Not Track” standard that would allow Internet users to express a preference, independent of cookie settings in their browser, not to have website browsing recorded. If Internet users adopt a “Do Not Track” browser setting, and the standard either imposed by state or federal legislation, or agreed upon by standard setting groups, prohibits us from using non-personal data as we currently do, then that could hinder growth of video advertising on the web generally, cause us to change our business practices and adversely affect our business.

In addition, browser manufacturers could replace cookies with their own product and require us to negotiate and pay them for use of such product to record information about Internet users’ interactions with our brand advertiser customers, which may not be available on commercially reasonable terms or at all.

We may be required to, or otherwise may determine that it is advisable to, develop or obtain additional tools and technologies to compensate for the lack of cookie data, which we may not be able to do. Moreover, even if we are able to do so, such additional tools may be subject to further regulation, time consuming to develop or costly to obtain, and less effective than our current use of cookies.

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Legislation and regulation of online businesses, including privacy and data protection regimes, is expansive, not clearly defined and rapidly evolving. Such regulation could create unexpected costs, subject us to enforcement actions for compliance failures, or restrict portions of our business or cause us to change our technology platform or business model.

Government regulation may increase the costs of doing business online. Federal, state, municipal and foreign governments and agencies have adopted and could in the future adopt, modify, apply or enforce laws, policies, and regulations covering user privacy, data security, technologies such as cookies that are used to collect, store or process data, video advertising online, the use of data to inform advertising, the taxation of products and services, unfair and deceptive practices, and the collection (including the collection of information), use, processing, transfer, storage and/or disclosure of data associated with unique individual Internet users. Although we have not collected data that is traditionally considered personal data, such as name, email address, address, phone numbers, social security numbers, credit card numbers, financial data or health data, we typically do collect and store IP addresses and other device identifiers, which are or may be considered personal data in some jurisdictions or otherwise may be the subject of legislation or regulation. In addition, certain U.S. laws impose requirements on the collection and use of information from or about users or their devices. For instance, the Children’s Online Privacy Protection Act, or COPPA, imposes requirements on website operators and online services that are aimed at children under the age of 13 years of age. COPPA was recently amended to require notice and parental consent to include persistent identifiers for behavioral advertising and other tracking across websites. Other existing laws may in the future be revised, or new laws may be passed, to impose more stringent requirements on the use of identifiers to collect user information, including information of the type that we collect. Changes in regulations could affect the type of data that we may collect, restrict our ability to use identifiers to collect information, and, thus, affect our ability to collect data, the costs of doing business online, and affect the demand for our platform, the ability to expand or operate our business, and harm our business.

U.S. and non-U.S. regulators also may implement “Do-Not-Track” legislation, particularly if the industry does not implement a standard (discussed above). The California Online Privacy Protection Act of 2003 requires operators of commercial websites and online service providers, under certain circumstances, to disclose in their privacy policies how such operators and providers respond to browser “do not track” signals.

Some of our activities may also be subject to the laws of foreign jurisdictions, whether or not we are established or based in such jurisdictions. Within the European Union, or EU, where we currently have an active presence in the United Kingdom, Directive 2009/136/EC, commonly referred to as the “Cookie Directive,” directs EU member states to ensure that accessing information on an Internet user’s computer, such as through a cookie, is allowed only if the Internet user has given his or her consent. In response, some member states have implemented legislation requiring entities to obtain the user’s consent before placing cookies for targeted advertising purposes. Additional EU member state laws may follow. We may be required to, or otherwise may determine that it is advisable to, develop or obtain additional tools and technologies to compensate for the lack of cookie data. Even if we are able to do so, such additional tools may be subject to further regulation, time consuming to develop or costly to obtain, and less effective than our current use of cookies. In addition, certain information, such as IP addresses as collected and used by us may constitute “personal data” in certain non-U.S. jurisdictions, including in the United Kingdom, and therefore certain of our activities could be subject to EU laws applicable to the processing and use of personal data.

In addition, we may inadvertently receive personal information from advertisers or advertising agencies or through the process of executing video advertising campaigns or usage of our platform. Our failure to comply with applicable laws and regulations, or to protect personal data, could result in enforcement action against us, including fines, imprisonment of our officers and public censure, claims for damages by consumers and other affected individuals, damage to our reputation and loss of goodwill, any of which could have a material adverse impact on our operations, financial performance and business. Even the perception of privacy concerns, whether or not valid, may harm our reputation and inhibit adoption of our solution by current and future advertisers and advertising agencies.

In addition, data security is of increasing concern to U.S., state and foreign regulators and, as a result, the legal standards for data security and the consequences for violating those standards continue to evolve and the threat posed by cyber-attacks and data breaches continues to grow. While we take measures to protect the security of information that we collect, use, and disclose in the operation of our business, and to offer certain privacy protections with respect to such information, such measures may not always be effective.

Our revenue may be adversely affected if we are required to charge sales taxes or other taxes for our platform.

States, countries or other jurisdictions may seek to impose sales or other tax collection obligations on us in the future, or states or jurisdictions in which we already pay tax may increase the amount of taxes we are required to pay. A successful assertion by any state, country or other jurisdiction in which we do business that we should be collecting sales or other taxes on the revenue of our platform could, among other things, create significant administrative burdens for us, result in substantial tax liabilities for past sales, discourage customers from using our platform or otherwise substantially harm our business and results of operations.

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Any forecasts of market growth that we have provided or may provide in the future may prove to be inaccurate, and even if the markets in which we compete achieve the forecasted growth, we cannot assure you our business will grow at similar rates, if at all.

Growth forecasts are subject to significant uncertainty and are based on assumptions and estimates, which may not prove to be accurate. Forecasts relating to the expected growth in video advertising and other markets, may prove to be inaccurate. Even if these markets experience the forecasted growth, we may not grow our business at similar rates, or at all. Our growth is subject to many factors, including our success in implementing our business strategy, which is subject to many risks and uncertainties.

We might require additional capital to support business growth, and this capital might not be available on acceptable terms, if at all.

We intend to continue to make investments to support our business growth and may require additional funds to respond to business challenges, such as keeping pace with technological developments in order to remain competitive in our evolving industry, improve our operating infrastructure or acquire complementary businesses and technologies. In addition, we remit payment for media inventory purchased through our platform by our Platform Direct and Platform Services customers in advance of receiving payment from them as the advertising agency does not pay us for use of our platform until it has received payment from the brand. This payment process will continue to consume working capital and the effect on our cash flows may become more pronounced if we continue to grow our business. As a result, we may need to engage in equity or debt financings to secure additional funds. If we raise additional funds through further issuances of equity or convertible debt securities, our existing stockholders could suffer significant dilution, and any new equity securities we issue could have rights, preferences and privileges superior to those of holders of our common stock. Any debt financing secured by us in the future could involve restrictive covenants relating to our capital raising activities and other financial and operational matters, which may make it more difficult for us to obtain additional capital and to pursue business opportunities, including potential acquisitions. In addition, we may not be able to obtain additional financing on terms favorable to us, if at all. If we are unable to obtain adequate financing or financing on terms satisfactory to us, when we require it, our ability to continue to support our business growth, particularly if we experience unexpected increases in advertising spend through our platform, and to respond to business challenges could be significantly impaired.

We may selectively pursue acquisitions of complementary businesses and technologies, which could divert our management’s attention, result in additional dilution to our stockholders and otherwise disrupt our operations and adversely affect our operating results.

We may selectively pursue acquisitions of complementary businesses and technologies that we believe could complement or expand our applications, enhance our technical capabilities or otherwise offer growth opportunities. The pursuit of potential acquisitions may divert the attention of management and cause us to incur various expenses in identifying, investigating and pursuing suitable acquisitions, whether or not they are consummated.

In addition, we have limited experience with acquiring other businesses or technologies. If we acquire businesses or technologies, we may not be able to integrate the acquired personnel, operations and technologies successfully, or effectively manage the combined business following the acquisition. We also may not achieve the anticipated benefits from the acquired business due to a number of factors, including:

• inability to integrate or benefit from acquired technologies or services in a profitable manner;

• unanticipated costs or liabilities associated with the acquisition;

• incurrence of acquisition-related costs;

• difficulty integrating the accounting systems, operations and personnel of the acquired business;

• difficulties and additional expenses associated with supporting legacy products and hosting infrastructure of the acquired business;

• difficulty converting the customers of the acquired business onto our applications and contract terms, including disparities in the revenue, licensing, support or professional services model of the acquired company;

• diversion of management’s attention from other business concerns;

• adverse effects to our existing business relationships with business partners and customers as a result of the acquisition;

• the potential loss of key employees; and

• use of resources that are needed in other parts of our business; and use of substantial portions of our available cash to consummate the acquisition.

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In addition, a significant portion of the purchase price of companies we acquire may be allocated to acquired goodwill and other intangible assets, which must be assessed for impairment at least annually. In the future, if our acquisitions do not yield expected returns, we may be required to take charges to our operating results based on this impairment assessment process, which could adversely affect our results of operations.

Acquisitions could also result in dilutive issuances of equity securities or the incurrence of debt, which could adversely affect our operating results. We may also unknowingly inherit liabilities from acquired businesses or assets that arise after the acquisition and that are not adequately covered by indemnities. In addition, if an acquired business fails to meet our expectations, our operating results, business and financial position may suffer.

If we are unable to implement and maintain effective internal control over financial reporting investors may lose confidence in the accuracy and completeness of our financial reports and the market price of our common stock may be negatively affected.

Section 404 of the Sarbanes-Oxley Act of 2002, or the Sarbanes-Oxley Act requires that we evaluate and determine the effectiveness of our internal control over financial reporting and, beginning with our annual report for the fiscal year ending December 31, 2015, provide a management report on the internal control over financial reporting, which must be attested to by our independent registered public accounting firm to the extent we decide not to avail ourselves of the exemption provided to an emerging growth company, as defined by The Jumpstart Our Businesses Act of 2012, or the JOBS Act. We have in the past discovered significant deficiencies in our internal control over financial reporting and have sought to address and remediate such control deficiencies as we have discovered them. As we have not conducted an evaluation of the effectiveness of our internal control over financial reporting, we may have undiscovered material weaknesses. If we have a material weakness in our internal control over financial reporting, we may not detect errors on a timely basis and our financial statements may be materially misstated. We are in the process of designing and implementing the internal control over financial reporting required to comply with this obligation, which process will be time consuming, costly, and complicated. If we identify material weaknesses in our internal control over financial reporting, if we are unable to comply with the requirements of Section 404 of the Sarbanes-Oxley Act in a timely manner, if we are unable to assert that our internal control over financial reporting are effective, or if our independent registered public accounting firm is unable to express an opinion as to the effectiveness of our internal control over financial reporting, if and when required, investors may lose confidence in the accuracy and completeness of our financial reports and the market price of our common stock could be negatively affected, and we could become subject to investigations by the stock exchange on which our securities are listed, the Securities and Exchange Commission, or SEC, or other regulatory authorities, which could require additional financial and management resources.

We incur significantly increased costs and devote substantial management time as a result of operating as a public company.

As a public company, we now incur significant legal, accounting and other expenses that we did not incur as a private company. For example, we are now subject to the reporting requirements of the Securities Exchange Act of 1934, as amended, or the Exchange Act, and are required to comply with the applicable requirements of the Sarbanes-Oxley Act and the Dodd-Frank Wall Street Reform and Consumer Protection Act, as well as rules and regulations subsequently implemented by the SEC and The Nasdaq Stock Market, or NASDAQ, including the establishment and maintenance of effective disclosure and financial controls and changes in corporate governance practices. Compliance with these requirements will continue to increase our legal and financial compliance costs and has and will increasingly make some activities more time consuming and costly. Our management team has limited experience managing a publicly-traded company and limited experience complying with the increasingly complex laws pertaining to public companies. Our management team may not successfully or efficiently manage our transition to being a public company that is subject to significant regulatory oversight and reporting obligations under the federal securities laws. In addition, we expect that our management and other personnel will need to divert attention from operational and other business matters to devote substantial time to these public company requirements. In particular, we expect to incur significant expenses and devote substantial management effort toward ensuring compliance with the requirements of Section 404 of the Sarbanes-Oxley Act. We will need to hire additional accounting and financial staff with appropriate public company experience and technical accounting knowledge and may need to establish an internal audit function.

As a public company it is more expensive for us to obtain director and officer liability insurance on the terms that we would like and we may find it more difficult for us to attract and retain qualified people to serve on our board of directors, our board committees or as executive officers.

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We are an emerging growth company and we cannot be certain if the reduced disclosure requirements applicable to emerging growth companies will make our common stock less attractive to investors.

For as long as we are an emerging growth company, we intend to take advantage of certain exemptions from various reporting requirements that are applicable to other public companies including, but not limited to, reduced disclosure obligations regarding executive compensation in our periodic reports and proxy statements, and exemptions from the requirements of holding a nonbinding advisory vote on executive compensation and stockholder approval of any golden parachute payments not previously approved. We cannot predict if investors will find our common stock less attractive because we will rely on these exemptions. If some investors find our common stock less attractive as a result, there may be a less active trading market for our common stock and our stock price may be more volatile.

We will remain an emerging growth company until the earliest of (i) the end of the fiscal year in which the market value of our common stock that is held by non-affiliates exceeds $700 million as of June 30, (ii) the end of the fiscal year in which we have total annual gross revenue of $1 billion or more during such fiscal year, (iii) the date on which we issue more than $1 billion in non-convertible debt in a three-year period or (iv) December 31, 2019.

We may not be able to utilize a significant portion of our net operating loss or research tax credit carryforwards, which could adversely affect our profitability.

As of September 30, 2015, we had federal and state net operating loss carryforwards due to prior period losses, which if not utilized will begin to expire in 2027 for federal and state purposes, respectively. These net operating loss carryforwards could expire unused and be unavailable to offset future income tax liabilities, which could adversely affect our profitability.

In addition, under Section 382 of the Internal Revenue Code of 1986, as amended, or the Code, our ability to utilize net operating loss carryforwards or other tax attributes in any taxable year may be limited if we experience an “ownership change.” A Section 382 “ownership change” generally occurs if one or more stockholders or groups of stockholders who own at least 5% of our stock increase their ownership by more than 50 percentage points over their lowest ownership percentage within a rolling three-year period. Similar rules may apply under state tax laws.

Future issuances of our stock could cause an “ownership change.” It is possible that any future ownership change could have a material effect on the use of our net operating loss carryforwards or other tax attributes, which could adversely affect our profitability.

Our reported financial results may be adversely affected by changes in accounting principles generally accepted in the United States.

Generally accepted accounting principles in the United States are subject to interpretation by the Financial Accounting Standards Board, the SEC, and various bodies formed to promulgate and interpret appropriate accounting principles. A change in these principles or interpretations could have a significant effect on our reported financial results, and could affect the reporting of transactions completed before the announcement of a change.

Risks Related to Ownership of Our Common Stock

We may fail to meet our publicly announced guidance or other expectations about our business and future operating results, which would cause our stock price to decline.

We have and may continue to provide guidance about our business and future operating results as part of our press releases, conference calls or otherwise. In developing this guidance, our management must make certain assumptions and judgments about our future performance. Our business results may vary significantly from such guidance due to a number of factors, many of which are outside of our control, and which could adversely affect our operations and operating results. Furthermore, if our publicly announced guidance of future operating results fails to meet expectations of securities analysts, investors or other interested parties, the price of our common stock would decline.

The price of our common stock has been volatile and may continue to be volatile and may decline regardless of our financial performance.

Technology stocks have historically experienced high levels of volatility. The trading price of our common stock has fluctuated and may continue to fluctuate significantly. Factors that could cause fluctuations in the trading price of our common stock include:

• overall performance of the equity markets;

• the development and sustainability of an active trading market for our common stock;

45

• our operating performance and the performance of other similar companies;

• changes in the estimates of our operating results that we provide to the public, our failure to meet these projections or changes in recommendations by securities analysts that elect to follow our common stock;

• press releases or other public announcements by us or others, including our filings with the SEC;

• changes in the market perception of software-based video advertising solutions generally or in the effectiveness of our platform in particular;

• announcements of technological innovations, new applications, features, functionality or enhancements to products, services or solutions by us or by our competitors;

• announcements of acquisitions, strategic alliances or significant agreements by us or by our competitors;

• announcements of customer additions and customer cancellations or delays in customer purchases;

• announcements regarding litigation involving us;

• recruitment or departure of key personnel;

• changes in our capital structure, such as future issuances of debt or equity securities;

• our entry into new markets;

• regulatory developments in the United States or foreign countries;

• the economy as a whole, market conditions in our industry, and the industries of our customers;

• the expiration of market standoff or contractual lock-up agreements;

• the size of our market float; and

• any other factors discussed in this Form 10-Q.

In addition, the stock markets have experienced extreme price and volume fluctuations that have affected and continue to affect the market prices of equity securities of many technology companies. Stock prices of many technology companies have fluctuated in a manner unrelated or disproportionate to the operating performance of those companies. In the past, stockholders have filed securities class action litigation following periods of market volatility. If we were to become involved in securities litigation, it could subject us to substantial costs, divert resources and the attention of management from our business, and adversely affect our business.

If securities or industry analysts do not publish research or publish inaccurate or unfavorable research about our business, our stock price and trading volume could decline.

The trading market for our common stock depends in part on the research and reports that securities or industry analysts publish about us or our business. If few securities analysts cover us, or if industry analysts cease coverage of us, the trading price for our common stock would be negatively affected. If one or more of the analysts who cover us downgrade our common stock or publish inaccurate or unfavorable research about our business, our common stock price would likely decline. If one or more of these analysts cease coverage of us or fail to publish reports on us regularly, demand for our common stock could decrease, which might cause our common stock price and trading volume to decline.

Substantial future sales of shares by our stockholders could negatively affect our stock price.

Sales of a substantial number of shares of our common stock in the public market, particularly sales by our directors, executive officers, and significant stockholders, or the perception that these sales might occur or if there is a large number of shares of our common stock available for sale, could depress the market price of our common stock and could impair our ability to raise capital through the sale of additional equity securities. As of September 30, 2015, we have 35 million shares of common stock outstanding. Our shares of common stock are freely tradable without restrictions or further registration under the Securities Act of 1933, as amended, or the Securities Act, except for any shares held by our affiliates as defined in Rule 144 under the Securities Act.

As of September 30, 2015, holders of an aggregate of approximately 10.9 million shares of our common stock have rights, subject to some conditions, to require us to file registration statements covering their shares or to include their shares in registration statements that we may file for ourselves or other stockholders. We have also registered shares of common stock that we have issued upon the exercise of outstanding stock options and RSUs, and that we may in the future issue, under our equity compensation plans. These can be freely sold in the public market upon issuance, subject to volume limitations applicable to affiliates and the lock-up agreements.

46

Furthermore, certain of our executive officers have adopted, and other employees, executive officers or directors may in the future adopt written plans, known as “Rule 10b5-1 Plans,” under which they have contracted, or may in the future contract, with a broker to sell shares of our common stock on a periodic basis to diversify their assets and investments. Sales of substantial amounts of our common stock in the public market, including, but not limited to sales made by our employees, executive officers and directors pursuant to Rule 10b5-1 Plans, or the perception that these sales could occur, could cause the market price of our common stock to decline.

The concentration of our common stock ownership with our executive officers, directors and affiliates will limit your ability to influence corporate matters.

Our executive officers, directors and owners of 5% or more of our outstanding common stock and their respective affiliates beneficially owned, in the aggregate, approximately 50% of our outstanding common stock as of September 30, 2015. These stockholders will therefore have significant influence over management and affairs and over all matters requiring stockholder approval, including the election of directors and significant corporate transactions, such as a merger or other sale of our company or its assets, for the foreseeable future. This concentrated control will limit the ability of our public stockholders to influence corporate matters and, as a result, we may take actions that our stockholders do not view as beneficial. This ownership could affect the value of shares of our common stock.

We do not intend to pay dividends for the foreseeable future.

We have never declared nor paid cash dividends on our capital stock. We currently intend to retain any future earnings to finance the operation and expansion of our business, and we do not expect to declare or pay any dividends in the foreseeable future. Consequently, stockholders must rely on sales of their common stock after price appreciation, which may never occur, as the only way to realize any future gains on their investment.

Provisions in our charter documents and under Delaware law could discourage a takeover that stockholders may consider favorable.

Provisions in our certificate of incorporation and by-laws may have the effect of delaying or preventing a change of control or changes in our management. These provisions include the following:

• authorize the issuance of “blank check” preferred stock that could be issued by our board of directors to defend against a takeover attempt;

• establish a classified board of directors, as a result of which the successors to the directors whose terms have expired will be elected to serve from the time of election and qualification until the third annual meeting following their election;

• require that directors only be removed from office for cause and only upon a supermajority stockholder vote;

• provide that vacancies on the board of directors, including newly created directorships, may be filled only by a majority vote of directors then in office rather than by stockholders;

• prevent stockholders from calling special meetings; and

• prohibit stockholder action by written consent, requiring all actions to be taken at a meeting of the stockholders.

In addition, we are governed by the provisions of Section 203 of the Delaware General Corporation Law, which generally prohibits a Delaware corporation from engaging in a broad range of business combinations with any “interested” stockholder for a period of three years following the date on which the stockholder becomes an “interested” stockholder.

47

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds  

(a) Recent Sales of Unregistered Securities

None

(b) Use of Proceeds

On July 17, 2014, the SEC declared our Registration Statement on Form S-1 (File No. 333-194817) effective for our initial public offering.  On June 10, 2015, the SEC declared our Registration Statement on Form S-1 (File No. 333-204629) effective for our follow-on offering. There have been no material changes in our use of the proceeds from our initial public offering and follow-on public offering as described in our final prospectuses filed with the SEC pursuant to Rule 424(b) of the Securities Act and other periodic reports previously filed with the SEC.

Item 3. Defaults upon Senior Securities

None.

Item 4. Mine Safety Disclosures

Not applicable.

Item 5. Other Information

None.

Item 6. Exhibits

See the Exhibit Index immediately following the signature page of this Form 10-Q, which is incorporated herein by reference.

48

SIGNATURES

Pursuant to the requirements of the Securities Act, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

TUBEMOGUL, INC.
By:	/s/  Brett Wilson
	Brett Wilson
	President and Chief Executive Officer
	(Principal Executive Officer)
Date:	November 12, 2015
By:	/s/  Paul Joachim
	Paul Joachim
	Chief Financial Officer
	(Principal Financial Officer and Principal Accounting Officer)
Date:	November 12, 2015

49

EXHIBIT INDEX

Exhibit Number	Description
31.1	Certification of Principal Executive Officer required by Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification of Principal Financial Officer pursuant to Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1†	Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2†	Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS	XBRL Instance Document.
101.SCH	XBRL Taxonomy Extension Schema Document.
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document.
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document.
101.LAB	XBRL Taxonomy Extension Label Linkbase Document.
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document.

† This certification is deemed furnished not filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (Exchange Act), or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended (Securities Act), or the Exchange Act.

50

EX-31.1

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Brett Wilson, certify that:

1. I have reviewed this quarterly report on Form 10-Q of TubeMogul, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(c) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Dated:  November 12, 2015	/s/ Brett Wilson
	Brett Wilson
	President and Chief Executive Officer
	(Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Paul Joachim, certify that:

1. I have reviewed this quarterly report on Form 10-Q of TubeMogul, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(c) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Dated:  November 12, 2015	/s/ Paul Joachim
	Paul Joachim
	Chief Financial Officer
	(Principal Financial and Accounting Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Brett Wilson, President and Chief Executive Officer of TubeMogul, Inc. (the “Company”), certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

(1) The Quarterly Report on Form 10-Q for the Company for the quarter ended September 30, 2015 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m); and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated:  November 12, 2015	/s/ Brett Wilson
	Brett Wilson
	President and Chief Executive Officer
	(Principal Executive Officer)

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Paul Joachim, Chief Financial Officer of TubeMogul, Inc. (the “Company”), certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

(1) The Quarterly Report on Form 10-Q for the Company for the quarter ended September 30, 2015 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m); and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated:  November 12, 2015	/s/ Paul Joachim
	Paul Joachim
	Chief Financial Officer
	(Principal Financial and Accounting Officer)

XML

Stock-Based Compensation - Summary of Plans RSU Activity (Details) - Restricted Stock Units (RSUs)	9 Months Ended
	Sep. 30, 2015 $ / shares shares
Outstanding number of shares
Outstanding number of shares, Beginning | shares	998,000
Outstanding number of shares, RSUs granted | shares	1,467,000
Outstanding number of shares, RSUs released | shares	(265,000)
Outstanding number of shares, RSUs canceled | shares	(224,000)
Outstanding number of shares, Ending | shares	1,976,000
Weighted-average Grant Date Fair Value
Weighted-Average Grant Date Fair Value, Beginning	$ 10.99
Weighted-Average Grant Date Fair Value, granted	14.76
Weighted-Average Grant Date Fair Value, released	11.52
Weighted-Average Grant Date Fair Value, canceled	13.73
Weighted-Average Grant Date Fair Value, Ending	$ 13.86

XML

Subsequent Events - Additional Information (Details) - USD ($) $ in Thousands	Oct. 31, 2015	Feb. 28, 2014	Jul. 31, 2013
Subsequent Event [Line Items]
Irrevocable letters of credit amount		$ 408	$ 334
Subsequent Event
Subsequent Event [Line Items]
Irrevocable letters of credit amount	$ 821

XML

Debt Obligations - Future Principal Payments of Long-Term Debt and Line of Credit (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Debt Disclosure [Abstract]
2015 (remaining 3 months)	$ 1,251
Total	1,251
Less current portion	$ (1,251)	$ (1,362)

XML

Net Loss Per Share (Tables)

9 Months Ended

Sep. 30, 2015

Earnings Per Share [Abstract]

Schedule of Computation of Net Loss per Common Share

The following table sets forth the computation of net loss per common share:

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2014			2015			2014			2015
Net Loss	$	(1,717	)	$	(3,754	)	$	(400	)	$	(12,231	)
Weighted-average shares used in computing basic and    diluted net loss per share		29,059			34,679			14,346			31,919
Basic and diluted net loss per share	$	(0.06	)	$	(0.11	)	$	(0.03	)	$	(0.38	)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following securities were excluded from the calculation of diluted net loss per share because their effect would have been anti-dilutive for the periods presented:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2014		2015		2014		2015
Employee stock options		3,965		4,498		3,965		4,498
RSUs		748		1,976		748		1,976
ESPP		124		122		124		122
Total		4,837		6,596		4,837		6,596

XML

Net Loss per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Earnings Per Share [Line Items]
Anti-dilutive securities that were excluded from calculation of diluted net loss per share	6,596,000	4,837,000	6,596,000	4,837,000
Employee stock purchase plan (ESPP)
Earnings Per Share [Line Items]
Anti-dilutive securities that were excluded from calculation of diluted net loss per share	122,000	124,000	122,000	124,000
Restricted Stock Units (RSUs)
Earnings Per Share [Line Items]
Anti-dilutive securities that were excluded from calculation of diluted net loss per share	1,976,000	748,000	1,976,000	748,000
Employee Stock Option
Earnings Per Share [Line Items]
Anti-dilutive securities that were excluded from calculation of diluted net loss per share	4,498,000	3,965,000	4,498,000	3,965,000

XML

Stock-Based Compensation - Summary of Stock Option Plan (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Outstanding number of shares
Outstanding number of shares, Beginning	5,166,000
Outstanding number of shares, Options granted	112,000
Outstanding number of shares, Options exercised	(718,000)
Outstanding number of shares, Options canceled	(62,000)
Outstanding number of shares, Ending	4,498,000	5,166,000
Outstanding number of shares, Options exercisable and vested	2,271,000
Outstanding number of shares, Options vested and expected to vest	4,371,000
Weighted-average exercise price per share
Weighted average exercise price per shares, Beginning	$ 5.32
Weighted average exercise price per shares, Options granted	14.91
Weighted average exercise price per shares, Options exercised	0.81
Weighted average exercise price per shares, Options canceled	3.69
Weighted average exercise price per shares, Ending	6.30	$ 5.32
Weighted average exercise price per shares, Options exercisable and vested	2.38
Weighted average exercise price per shares, Options vested and expected to vest	6.16
Weighted-average grant date fair value
Weighted average grant date fair value, Options granted	$ 8.95
Total intrinsic value of shares
Total intrinsic value of shares, Options exercised	$ 9,326
Weighted average remaining contractual life
Weighted average remaining contractual life, Beginning	7 years 4 months 2 days	7 years 9 months
Weighted average remaining contractual life, Options exercisable and vested	6 years 1 month 28 days
Weighted average remaining contractual life, Options vested and expected to vest	7 years 3 months 18 days
Aggregate intrinsic value
Aggregate intrinsic value, Beginning	$ 83,132
Aggregate intrinsic value, Ending	27,846	$ 83,132
Aggregate intrinsic value, Options exercisable and vested	19,725
Aggregate intrinsic value, Options vested and excepted to vest	$ 27,461

XML

Accrued Liabilities

9 Months Ended

Sep. 30, 2015

Payables And Accruals [Abstract]

Accrued Liabilities

3. Accrued Liabilities

Accrued liabilities at December 31, 2014 and September 30, 2015, consisted of the following:

	December 31,		September 30,
	2014		2015
Accrued media costs	$	41,436	$	38,554
Sales commissions		2,826		2,609
Payroll and related expenses		3,757		4,494
Other accrued expenses		2,419		3,652
	$	50,438	$	49,309

Accrued media costs consist of amounts owed to the Company’s vendors for impressions delivered through December 31, 2014 and September 30, 2015.

XML

Employee Benefit Plans - Additional Information (Details) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2015
Postemployment Benefits [Abstract]
Description of Profit Sharing Plan (the Plan)		The Company established a 401(k) Profit Sharing Plan (the 401(k) Plan) in 2009, pursuant to which the Company may make a discretionary contribution to the 401(k) Plan each year, allocable to all plan participants. The Company is responsible for administrative expenses of the 401(k) Plan.
Percentage of employer matching contribution		25.00%
Amount of employer matching contribution	$ 210,000	$ 601,000

XML

Property, Equipment and Software - Schedule of Property, Equipment and Software (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Property Plant And Equipment [Line Items]
Property, equipment and software, gross	$ 9,993	$ 5,186
Less accumulated depreciation and amortization	(2,710)	(1,284)
Total	7,283	3,902
Computer, Software and Office Equipment
Property Plant And Equipment [Line Items]
Property, equipment and software, gross	3,697	1,928
Capitalized Internal Use Software Costs
Property Plant And Equipment [Line Items]
Property, equipment and software, gross	2,928	1,166
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Property, equipment and software, gross	1,916	1,049
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property, equipment and software, gross	$ 1,452	$ 1,043

XML

The Company and its Significant Accounting Policies - Schedule of Allowance for Credit Memos (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Valuation And Qualifying Accounts Disclosure [Line Items]
Issued credit memos	$ 2,139	$ 1,173
Credit Memos
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance, beginning of period	(460)
Additions to allowance	(2,139)		$ (1,875)
Issued credit memos	1,924		1,415
Balance, end of period	$ (675)		$ (460)

XML

Income Taxes - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Tax Examination [Line Items]
Foreign income taxes and state minimum taxes	$ 48,000	$ 64,000	$ 257,000	$ 201,000
Material uncertain tax positions	$ 0		0
US
Income Tax Examination [Line Items]
Current federal tax benefit			0
Japan
Income Tax Examination [Line Items]
Current foreign tax benefit			$ 0

XML

Property, Equipment and Software - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Property Plant And Equipment [Abstract]
Depreciation and amortization	$ 554	$ 240	$ 1,426	$ 549

XML

Accrued Liabilities - Schedule of Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Payables And Accruals [Abstract]
Accrued media costs	$ 38,554	$ 41,436
Sales commissions	2,609	2,826
Payroll and related expenses	4,494	3,757
Other accrued expenses	3,652	2,419
Total accrued liabilities	$ 49,309	$ 50,438

XML

Property, Equipment and Software

9 Months Ended

Sep. 30, 2015

Property Plant And Equipment [Abstract]

Property, Equipment and Software

2. Property, Equipment and Software

Property, equipment and software as of December 31, 2014 and September 30, 2015 consisted of the following:

	December 31,			September 30,
	2014			2015
Computer, software and office equipment	$	1,928		$	3,697
Capitalized internal use software costs		1,166			2,928
Furniture and fixtures		1,049			1,916
Leasehold improvements		1,043			1,452
		5,186			9,993
Less accumulated depreciation and amortization		(1,284	)		(2,710	)
Total	$	3,902		$	7,283

Total depreciation and amortization expense, was $240 and $554 for three months ended September 30, 2014 and 2015, respectively and $549 and $1,426 for the nine months ended September 30, 2014 and 2015, respectively.

XML

Debt Obligations - Growth Capital Term-Debt and Working Capital Line of Credit - Additional Information (Details) - USD ($)			9 Months Ended
	Apr. 18, 2014	Aug. 21, 2013	Sep. 30, 2015
Line Of Credit Facility [Line Items]
Cash on deposit with lender plus availability under revolving line of credit required to deliver additional reporting			$ 10,000,000
Percentage of cash required to be maintained in accounts			80.00%
Deposits with Lender More Than Fifty Million
Line Of Credit Facility [Line Items]
Investment Owned, Balance, Principal Amount			$ 2,000,000
Deposits with Lender Less Than or Equals to Fifty Million
Line Of Credit Facility [Line Items]
Investment Owned, Balance, Principal Amount			1,000,000
Growth Capital Term Debt
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		$ 4,250,000
Revolving Credit Facility
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 35,000,000	$ 20,000,000
Term loan interest rate		4.75%
Percentage of eligible accounts receivable		80.00%
Line of credit facility expiration date	Apr. 01, 2016
Available borrowing with revolving line of credit			$ 34,000,000
Line of credit facility, covenant terms			The amendment also increased the amount the Company may borrow under the revolving line of credit up to the lesser of (a) $35.0 million, and (b) a borrowing base equal to 80% of eligible accounts receivable (as defined in the agreement), as amended. Advances under the revolving line of credit accrue interest at a floating per annum rate equal to the Western Edition Wall Street Journal prime rate. While the interest rate applicable to outstanding advances under the revolving line of credit did not change under the amendment, the Company is now required to pay a minimum amount of interest equal to the amount of interest that would accrue per quarter on a notional outstanding principal balance of $2.0 million, or $1.0 million if the Company maintains more than $50.0 million in deposits with the lender.
Outstanding borrowing			$ 1,000,000
Equipment Term Loan Facility
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 3,000,000

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Stock-Based Compensation - Summary of Effects of Stock-Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation	$ 3,434	$ 788	$ 8,813	$ 1,836
Research and development
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation	1,043	283	2,513	594
Sales and marketing
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation	1,058	244	2,572	577
General and administrative
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation	$ 1,333	$ 261	$ 3,728	$ 665

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Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 83,992	$ 46,592
Accounts receivable, net	126,615	88,457
Prepaid expenses and other current assets	4,688	2,322
Total current assets	215,295	137,371
Property, equipment and software, net	7,283	3,902
Other assets	1,498	1,434
Total assets	224,076	142,707
Current liabilities:
Accounts payable	44,111	19,087
Accrued liabilities	49,309	50,438
Note payable, net of discount	1,251	1,362
Other current liabilities	1,035	578
Total current liabilities	95,706	71,465
Deferred rent	810	601
Total liabilities	$ 96,516	$ 72,066
Commitments and contingencies (Note 5)
Stockholders’ equity:
Preferred stock; $0.001 par value; 10,000 shares authorized as of December 31, 2014 and September 30, 2015; 0 shares outstanding as of December 31, 2014 and September 30, 2015
Common stock; $0.001 par value; 200,000 shares authorized as of December 31, 2014 and September 30, 2015; 29,838 and 34,988 shares issued and outstanding as of December 31, 2014 and September 30, 2015, respectively	$ 35	$ 30
Additional paid-in capital	163,303	94,013
Accumulated deficit	(35,516)	(23,285)
Accumulated other comprehensive loss	(262)	(117)
Total stockholders’ equity	127,560	70,641
Total liabilities and stockholders’ equity	$ 224,076	$ 142,707

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Segment Information - Additional Information (Details)	9 Months Ended
	Sep. 30, 2015 USD ($)
Segment Reporting [Abstract]
Number of operating business activity	1

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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net loss	$ (12,231)	$ (400)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	1,426	549
Gain on change in value of convertible preferred stock warrant liability		(168)
Provision for doubtful accounts	1,100	526
Provision for credit memos	2,139	1,173
Stock-based compensation expense	8,813	1,836
Changes in operating assets and liabilities:
Accounts receivable	(41,397)	(20,745)
Payments of costs related to initial public offering		(3,349)
Prepaid expenses and other current assets	(2,366)	(1,313)
Other assets	(64)	75
Accounts payable	23,658	15,179
Accrued liabilities	(1,129)	(8,576)
Deferred rent	209	440
Deferred revenue	457	846
Net cash used in operating activities	(19,385)	(13,927)
Cash flows from investing activities:
Increase in restricted cash		(408)
Purchases of property, equipment and software	(3,441)	(2,819)
Net cash used in investing activities	(3,441)	(3,227)
Cash flows from financing activities:
Proceeds from public offering of common stock, net of underwriting discounts, commission and offering costs	58,333	46,791
Repayments on notes payable	(1,111)	(1,057)
Proceeds from line of credit	1,000	11,800
Repayment of line of credit		(11,800)
Proceeds from issuances of common stock from options exercised and under ESPP	2,149	275
Net cash provided by financing activities	60,371	46,009
Effect of exchange rate changes on cash and cash equivalents	(145)	(131)
Net increase in cash and cash equivalents	37,400	28,724
Cash and cash equivalents, beginning of period	46,592	19,475
Cash and cash equivalents, end of period	83,992	48,199
Supplemental disclosures:
Property and equipment purchased and unpaid at period end	1,366	179
Cash paid for interest	$ 95	71
Conversion of preferred stock warrants to common stock warrants		$ 516

XML

Commitments and Contingencies - Additional Information (Details) - USD ($)		3 Months Ended		9 Months Ended
	Aug. 31, 2015	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Feb. 28, 2014	Jul. 31, 2013
Long Term Purchase Commitment [Line Items]
Rent expense		$ 692,000	$ 644,000	$ 1,968,000	$ 1,681,000
Irrevocable letters of credit amount						$ 408,000	$ 334,000
Description of purchase commitment period of time				These purchases can be made at any time from February 15, 2015 through September 30, 2016.
Minimum
Long Term Purchase Commitment [Line Items]
Commitment to purchase	$ 7,500,000
Maximum
Long Term Purchase Commitment [Line Items]
Commitment to purchase	$ 15,000,000

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Debt Obligations (Tables)

9 Months Ended

Sep. 30, 2015

Debt Disclosure [Abstract]

Future Principal Payments of Long-Term Debt and Line of Credit

Future principal payments of long-term debt and line of credit as of September 30, 2015 were as follows:

2015 (remaining 3 months)	$	1,251
Total		1,251
Less current portion		(1,251	)
Noncurrent portion of debt	$	—

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Stock-Based Compensation - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended	9 Months Ended
	Feb. 28, 2014	Sep. 30, 2015	Sep. 30, 2015	Jan. 01, 2015
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of increase on common stock authorized on each subsequent anniversary			5.00%
Common stock, shares authorized reserve, description and terms			This reserve automatically increased on January 1, 2015 by 1,491,894 shares and will continue to increase on each subsequent anniversary through 2024, by an amount equal to the smaller of (a) five percent (5%) of the number of shares of common stock issued and outstanding on the immediately preceding December 31; or (b) an amount determined by the Company’s board of directors.
Common Stock Including Additional Paid in Capital
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares authorized		4,975,000,000	4,975,000,000
2007 Equity Compensation Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares authorized		6,093,703,000	6,093,703,000
2014 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares authorized		2,500,000,000	2,500,000,000	1,491,894,000
2014 ESPP
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock purchase price discounted rate for eligible employee	15.00%
Lower fair market value of common stock on the first trading day	85.00%
Number of shares purchased under plan		89,000	210,000
Employee Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost		$ 9.4	$ 9.4
Unrecognized compensation cost expected to be recognized period			1 year 11 months 1 day
Employee Stock Option | 2007 Equity Compensation Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options granted vesting period			4 years
Employee Stock Option | 2007 Equity Compensation Plan | After one year from the date of grant [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of options granted vesting period			25.00%
Employee Stock Option | 2014 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options granted vesting period			4 years
Employee Stock Option | 2014 Plan | After one year from the date of grant [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of options granted vesting period			25.00%
Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost		$ 22.5	$ 22.5
Unrecognized compensation cost expected to be recognized period			3 years 3 months 22 days
Restricted Stock Units (RSUs) | 2007 Equity Compensation Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options granted vesting period			4 years
Restricted Stock Units (RSUs) | 2007 Equity Compensation Plan | After one year from the date of grant [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of options granted vesting period			25.00%
Restricted Stock Units (RSUs) | 2014 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options granted vesting period			4 years
Restricted Stock Units (RSUs) | 2014 Plan | After one year from the date of grant [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of options granted vesting period			25.00%
Maximum | Employee Stock Option | 2007 Equity Compensation Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options granted exercisable vesting period			10 years
Maximum | Employee Stock Option | 2014 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options granted exercisable vesting period			10 years

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Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2015

Summary of Stock Option Plan

The following table summarizes the Plan’s stock option activity:

				Weighted-		Weighted-				Weighted
				average		average				average
	Outstanding			exercise		grant		Totalintrinsic		remaining		Aggregate
	number of			price per		date fair		value of		contractual		intrinsic
	shares			share		value		exercises		life		value
Balance at December 31, 2014		5,166		$	5.32						7.75	$	83,132
Options granted		112			14.91	$	8.95
Options exercised		(718	)		0.81			$	9,326
Options canceled		(62	)		3.69
Balance at September 30, 2015		4,498		$	6.30						7.34	$	27,846
Options exercisable and vested at    September 30, 2015		2,271		$	2.38						6.16	$	19,725
Options vested and expected to vest at    September 30, 2015		4,371		$	6.16						7.30	$	27,461

Schedule of Share-based Compensation, Restricted Stock Unit Award Activity

The following table summarizes the Plan’s RSU activity:

				Weighted-
	Outstanding			Average
	number of			Grant Date
	shares			Fair Value
Balance at December 31, 2014		998		$	10.99
RSUs granted		1,467			14.76
RSUs released		(265	)		11.52
RSUs canceled		(224	)		13.73
Balance at September 30, 2015		1,976		$	13.86

Summary of Effects of Stock-Based Compensation

The following table summarizes the effects of stock-based compensation in the Company’s accompanying condensed consolidated statements of operations:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2014		2015		2014		2015
Research and development	$	283	$	1,043	$	594	$	2,513
Sales and marketing		244		1,058		577		2,572
General and administrative		261		1,333		665		3,728
Total stock-based compensation	$	788	$	3,434	$	1,836	$	8,813

Employees

Schedule of Assumptions Used to Calculate Fair Value of Options

The following assumptions were used to calculate the fair value of options for employees:

	Nine Months Ended	Nine Months Ended
	September 30,	September 30,
	2014	2015
Risk-free interest rate	1.8% to 2.0%	1.18% to 1.63%
Dividend yield	—  %	—  %
Volatility	66% to 67%		70%
Expected term	6.0 to 6.4 years	4.5 to 6.5 years

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The Company and its Significant Accounting Policies

9 Months Ended

Sep. 30, 2015

Accounting Policies [Abstract]

The Company and its Significant Accounting Policies

1. The Company and its Significant Accounting Policies

The Company

TubeMogul, Inc., a Delaware corporation (the Company), is an enterprise software company for brand advertising. The Company’s customers include many of the world’s largest brands and their media agencies.

The Company completed a follow-on public offering of common stock in June 2015. The Company sold 3,500,000 shares of its common stock and certain stockholders sold 1,763,246 shares. The shares were sold at a public offering price of $15.75 per share for net proceeds of $52.2 million to the Company, after deducting underwriting discounts and commissions of $2.9 million and before deducting total expenses in connection with this offering of $875. On July 10, 2015, in connection with the Company’s public follow-on offering of common stock on June 10, 2015, the underwriters partially exercised their over-allotment option and purchased 469,486 shares of common stock for net proceeds of $7.0 million.  

Principles of Consolidation and Basis of Presentation

These unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (GAAP) and applicable rules and regulations of the Securities and Exchange Commission (SEC) regarding interim financial reporting, and include the accounts of the Company’s wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2014.   

The consolidated balance sheet as of December 31, 2014 included herein was derived from the audited financial statements as of that date. These unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, the Company’s comprehensive loss and cash flows for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full fiscal year ending December 31, 2015 or any other period.

Use of Estimates

The preparation of the financial statements in accordance with GAAP requires management to make estimates and assumptions that affect reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates in these condensed consolidated financial statements include allowances for doubtful accounts and credit memos, useful lives for depreciation and amortization, loss contingencies, valuation of deferred tax assets, provisions for uncertain tax positions, capitalization of software costs, delivery of impressions for campaigns using the Company’s programmatic TV (PTV) solution and assumptions used for valuation of stock-based compensation. Actual results could differ from those and other estimates.

Accounts Receivable

Accounts receivable are stated at net realizable value. The Company provides an allowance for doubtful accounts based on management’s evaluation of outstanding accounts receivable. The Company maintains reserves for potential credit losses on customer accounts when deemed necessary. The Company analyzes specific accounts receivable, historical bad debts, customer concentrations, current economic trends, and changes in the customer payment terms when evaluating the adequacy of the allowance for doubtful accounts. Accounts receivable are written off when no future collection is possible.

Many of the Company’s contracts with advertising agencies provide that if the brand (i.e., the agency’s customer) does not pay the agency, the agency is not liable to the Company and the Company must seek payment from the brand. Accordingly, the Company considers the creditworthiness of the brand in establishing its allowance for doubtful accounts. However, since inception, the Company has not had to initiate collection efforts directly with any brands where the contract was with an advertising agency.

The following table presents the changes in the allowance for doubtful accounts:

	Year Ended			Nine Months Ended
	December 31,			September 30,
	2014			2015
Balance, beginning of period	$	(714	)	$	(1,369	)
Additions to allowance		(903	)		(1,100	)
Write offs, net of recoveries		248			512
Balance, end of period	$	(1,369	)	$	(1,957	)

On a quarterly basis, the amount of revenue that is reserved for credit memos is calculated based on the Company’s historical trends and data specific to each reporting period. The Company reviews the actual credit memos issued in prior quarters as they relate to prior periods and establishes a rate at which credit memos affected revenue in prior periods. The Company then applies the established rate to the current period revenue as a basis for estimating future credit memos related to revenue already recognized.

The following table presents the changes in the allowance for credit memos:

	Year Ended			Nine Months Ended
	December 31,			September 30,
	2014			2015
Balance, beginning of period	$	—		$	(460	)
Additions to allowance		(1,875	)		(2,139	)
Issued credit memos		1,415			1,924
Balance, end of period	$	(460	)	$	(675	)

Fair Value Measurement and Financial Instruments

The Company measures the fair value of its financial instruments in accordance with of the Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) for Fair Value Measurements. Under this standard, fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (i.e., the exit price) in an orderly transaction between market participants at the measurement date. In determining fair values of all reported assets and liabilities that represent financial instruments, the Company uses the carrying market values of such amounts. The provision establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing the asset or liability developed based on market data obtained from sources independent of the Company.

Unobservable inputs are inputs that reflect the Company’s assumptions as to what market participants would use in pricing the asset or liability developed based on the best information available under the circumstances. The hierarchy is broken down into three levels based on the observability of inputs as follows:

Level 1 — Unadjusted quoted prices in active markets for identical assets or liabilities accessible to the reporting entity at the measurement date.

Level 2 — Other than quoted prices included in Level 1 inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the asset or liability.

Level 3 — Unobservable inputs for the asset or liability used to measure fair value to the extent that observable inputs are not available, thereby allowing for situations in which there is little, if any, market activity for the asset or liability at measurement date.

The Company had $45,908 and $57,501 of cash equivalents as of December 31, 2014 and September 30, 2015, respectively, which are measured at fair value on a recurring basis. Inputs used in measuring fair value of cash and cash equivalents are categorized as Level 1.

From time to time the Company enters into foreign currency forward contracts to mitigate its exposure to foreign exchange risk.  The foreign currency forward contracts are valued using observable inputs, such as quotations on forward foreign exchange points and foreign interest rates and are categorized as Level 2. Realized gains from these contracts were $634 and $400 for the three and nine months ended September 30, 2015, respectively. The Company did not enter into such contracts during the year ended December 31, 2014. The Company uses foreign currency forward contracts to mitigate the impact of foreign currency fluctuations of certain non-U.S. dollar denominated asset positions, primarily cash and accounts receivable. Gains and losses resulting from currency exchange rate movements on these forward contracts are recognized in other income (expense) in the accompanying condensed consolidated statements of operations in the period in which the exchange rates change and offset the foreign currency gains and losses on the underlying exposure being hedged. The Company does not enter into derivative financial instruments for trading or speculative purposes.As of September 30, 2015, the Company had forward foreign exchange contracts to buy a total notional value of $20 million against various foreign currencies. The Company does not apply hedge accounting to its derivative transactions. The Company is exposed to credit loss in the event of nonperformance by the counterparty to the foreign currency foreign exchange contracts. The Company continually monitors its positions and the credit ratings of the counterparties involved to mitigate the amount of credit exposure.

Other financial instruments not measured at fair value on the accompanying consolidated balance sheets at December 31, 2014 and September 30, 2015, but which require disclosure of their fair values include accounts receivable, accounts payable, accrued liabilities and debt. The estimated fair values of such instruments at December 31, 2014 and September 30, 2015 approximated their carrying values. The fair values of all of these instruments are categorized as Level 2 in the fair value hierarchy.

Recent Accounting Pronouncements

In May 2014, FASB, issued Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers, or ASU 2014-09, which clarifies existing accounting literature relating to how and when a company recognizes revenue. Under ASU 2014-09, a company 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 and services. Additionally, the guidance requires improved disclosures to help users of financial statements better understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The new standard allows for either a full retrospective or a modified retrospective transition method. The FASB decided on July 9, 2015 to defer for one year the effective date of the new revenue standard for public and nonpublic entities reporting under GAAP. The FASB also decided to permit entities to early adopt the standard as of the original effective date. The Company is in the process of determining what impact, if any, the adoption of this ASU will have on its consolidated financial statements and related disclosures.

In April 2015, FASB issued ASU No. 2015-05, Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement, which provides explicit guidance to help companies evaluate the accounting for fees paid by a customer in a cloud computing arrangement. The new guidance clarifies that if a cloud computing arrangement includes a software license, the customer should account for the license consistent with its accounting for other software licenses. If the arrangement does not include a software license, the customer should account for the arrangement as a service contract. ASU 2015-05 is effective for public business entities for annual periods, including interim periods within those annual periods, beginning after December 15, 2015. For all other entities, the amendments are effective for annual periods beginning after December 15, 2015, and interim periods in annual periods beginning after December 15, 2016. An entity can elect to adopt the amendments either prospectively for all arrangements entered into or materially modified after the effective date, or retrospectively. Early adoption is permitted for all entities. The Company is in the process of determining what impact, if any, the adoption of this ASU will have on its consolidated financial statements and related disclosures.

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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Sep. 30, 2015	Dec. 31, 2014
Statement Of Financial Position [Abstract]
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	34,988,000	29,838,000
Common stock, shares outstanding	34,988,000	29,838,000

XML

Subsequent Events

9 Months Ended

Sep. 30, 2015

Subsequent Events [Abstract]

Subsequent Events

11. Subsequent Events

In October 2015, the Company entered into an irrevocable standby letter of credit in the amount of $821 for the benefit of its landlord. The irrevocable letter of credit automatically renews on its anniversary so long that the sub-lease is still effective. The letter of credit may be canceled prior to the expiration date upon the written request of the beneficiary.

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Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2015	Nov. 03, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q3
Trading Symbol	TUBE
Entity Registrant Name	TUBEMOGUL INC
Entity Central Index Key	0001449278
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		35,047,910

XML

The Company and its Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2015

Accounting Policies [Abstract]

Principles of Consolidation and Basis of Presentation

Principles of Consolidation and Basis of Presentation

These unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (GAAP) and applicable rules and regulations of the Securities and Exchange Commission (SEC) regarding interim financial reporting, and include the accounts of the Company’s wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2014.   

The consolidated balance sheet as of December 31, 2014 included herein was derived from the audited financial statements as of that date. These unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, the Company’s comprehensive loss and cash flows for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full fiscal year ending December 31, 2015 or any other period.

Use of Estimates

Use of Estimates

The preparation of the financial statements in accordance with GAAP requires management to make estimates and assumptions that affect reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates in these condensed consolidated financial statements include allowances for doubtful accounts and credit memos, useful lives for depreciation and amortization, loss contingencies, valuation of deferred tax assets, provisions for uncertain tax positions, capitalization of software costs, delivery of impressions for campaigns using the Company’s programmatic TV (PTV) solution and assumptions used for valuation of stock-based compensation. Actual results could differ from those and other estimates.

Accounts Receivable

Accounts Receivable

Accounts receivable are stated at net realizable value. The Company provides an allowance for doubtful accounts based on management’s evaluation of outstanding accounts receivable. The Company maintains reserves for potential credit losses on customer accounts when deemed necessary. The Company analyzes specific accounts receivable, historical bad debts, customer concentrations, current economic trends, and changes in the customer payment terms when evaluating the adequacy of the allowance for doubtful accounts. Accounts receivable are written off when no future collection is possible.

Many of the Company’s contracts with advertising agencies provide that if the brand (i.e., the agency’s customer) does not pay the agency, the agency is not liable to the Company and the Company must seek payment from the brand. Accordingly, the Company considers the creditworthiness of the brand in establishing its allowance for doubtful accounts. However, since inception, the Company has not had to initiate collection efforts directly with any brands where the contract was with an advertising agency.

The following table presents the changes in the allowance for doubtful accounts:

	Year Ended			Nine Months Ended
	December 31,			September 30,
	2014			2015
Balance, beginning of period	$	(714	)	$	(1,369	)
Additions to allowance		(903	)		(1,100	)
Write offs, net of recoveries		248			512
Balance, end of period	$	(1,369	)	$	(1,957	)

On a quarterly basis, the amount of revenue that is reserved for credit memos is calculated based on the Company’s historical trends and data specific to each reporting period. The Company reviews the actual credit memos issued in prior quarters as they relate to prior periods and establishes a rate at which credit memos affected revenue in prior periods. The Company then applies the established rate to the current period revenue as a basis for estimating future credit memos related to revenue already recognized.

The following table presents the changes in the allowance for credit memos:

	Year Ended			Nine Months Ended
	December 31,			September 30,
	2014			2015
Balance, beginning of period	$	—		$	(460	)
Additions to allowance		(1,875	)		(2,139	)
Issued credit memos		1,415			1,924
Balance, end of period	$	(460	)	$	(675	)

Fair Value Measurement and Financial Instruments

Fair Value Measurement and Financial Instruments

The Company measures the fair value of its financial instruments in accordance with of the Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) for Fair Value Measurements. Under this standard, fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (i.e., the exit price) in an orderly transaction between market participants at the measurement date. In determining fair values of all reported assets and liabilities that represent financial instruments, the Company uses the carrying market values of such amounts. The provision establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing the asset or liability developed based on market data obtained from sources independent of the Company.

Unobservable inputs are inputs that reflect the Company’s assumptions as to what market participants would use in pricing the asset or liability developed based on the best information available under the circumstances. The hierarchy is broken down into three levels based on the observability of inputs as follows:

Level 1 — Unadjusted quoted prices in active markets for identical assets or liabilities accessible to the reporting entity at the measurement date.

Level 2 — Other than quoted prices included in Level 1 inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the asset or liability.

Level 3 — Unobservable inputs for the asset or liability used to measure fair value to the extent that observable inputs are not available, thereby allowing for situations in which there is little, if any, market activity for the asset or liability at measurement date.

The Company had $45,908 and $57,501 of cash equivalents as of December 31, 2014 and September 30, 2015, respectively, which are measured at fair value on a recurring basis. Inputs used in measuring fair value of cash and cash equivalents are categorized as Level 1.

From time to time the Company enters into foreign currency forward contracts to mitigate its exposure to foreign exchange risk.  The foreign currency forward contracts are valued using observable inputs, such as quotations on forward foreign exchange points and foreign interest rates and are categorized as Level 2. Realized gains from these contracts were $634 and $400 for the three and nine months ended September 30, 2015, respectively. The Company did not enter into such contracts during the year ended December 31, 2014. The Company uses foreign currency forward contracts to mitigate the impact of foreign currency fluctuations of certain non-U.S. dollar denominated asset positions, primarily cash and accounts receivable. Gains and losses resulting from currency exchange rate movements on these forward contracts are recognized in other income (expense) in the accompanying condensed consolidated statements of operations in the period in which the exchange rates change and offset the foreign currency gains and losses on the underlying exposure being hedged. The Company does not enter into derivative financial instruments for trading or speculative purposes.As of September 30, 2015, the Company had forward foreign exchange contracts to buy a total notional value of $20 million against various foreign currencies. The Company does not apply hedge accounting to its derivative transactions. The Company is exposed to credit loss in the event of nonperformance by the counterparty to the foreign currency foreign exchange contracts. The Company continually monitors its positions and the credit ratings of the counterparties involved to mitigate the amount of credit exposure.

Other financial instruments not measured at fair value on the accompanying consolidated balance sheets at December 31, 2014 and September 30, 2015, but which require disclosure of their fair values include accounts receivable, accounts payable, accrued liabilities and debt. The estimated fair values of such instruments at December 31, 2014 and September 30, 2015 approximated their carrying values. The fair values of all of these instruments are categorized as Level 2 in the fair value hierarchy.

Recent Accounting Pronouncements

Recent Accounting Pronouncements

In May 2014, FASB, issued Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers, or ASU 2014-09, which clarifies existing accounting literature relating to how and when a company recognizes revenue. Under ASU 2014-09, a company 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 and services. Additionally, the guidance requires improved disclosures to help users of financial statements better understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The new standard allows for either a full retrospective or a modified retrospective transition method. The FASB decided on July 9, 2015 to defer for one year the effective date of the new revenue standard for public and nonpublic entities reporting under GAAP. The FASB also decided to permit entities to early adopt the standard as of the original effective date. The Company is in the process of determining what impact, if any, the adoption of this ASU will have on its consolidated financial statements and related disclosures.

In April 2015, FASB issued ASU No. 2015-05, Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement, which provides explicit guidance to help companies evaluate the accounting for fees paid by a customer in a cloud computing arrangement. The new guidance clarifies that if a cloud computing arrangement includes a software license, the customer should account for the license consistent with its accounting for other software licenses. If the arrangement does not include a software license, the customer should account for the arrangement as a service contract. ASU 2015-05 is effective for public business entities for annual periods, including interim periods within those annual periods, beginning after December 15, 2015. For all other entities, the amendments are effective for annual periods beginning after December 15, 2015, and interim periods in annual periods beginning after December 15, 2016. An entity can elect to adopt the amendments either prospectively for all arrangements entered into or materially modified after the effective date, or retrospectively. Early adoption is permitted for all entities. The Company is in the process of determining what impact, if any, the adoption of this ASU will have on its consolidated financial statements and related disclosures.

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Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenue:
Total revenue	$ 46,485	$ 27,420	$ 122,241	$ 78,161
Cost of revenue	15,338	8,255	38,947	23,578
Gross profit	31,147	19,165	83,294	54,583
Operating expenses:
Research and development	10,931	5,287	29,203	14,035
Sales and marketing	13,466	8,783	38,075	24,997
General and administrative	9,731	5,583	26,173	14,725
Total operating expenses	34,128	19,653	93,451	53,757
(Loss) Income from operations	(2,981)	(488)	(10,157)	826
Other (expense) income, net:
Interest expense, net	(6)	(63)	(57)	(183)
Change in fair value of convertible preferred stock warrant liability				168
Foreign exchange loss, net	(719)	(1,102)	(1,760)	(1,010)
Other expense, net	(725)	(1,165)	(1,817)	(1,025)
Net loss before income taxes	(3,706)	(1,653)	(11,974)	(199)
Provision for income taxes	(48)	(64)	(257)	(201)
Net loss	$ (3,754)	$ (1,717)	$ (12,231)	$ (400)
Basic and diluted net loss per share attributable to common stockholders	$ (0.11)	$ (0.06)	$ (0.38)	$ (0.03)
Basic and diluted weighted-average shares used to compute net loss per share attributable to common stockholders	34,679	29,059	31,919	14,346
Platform Direct
Revenue:
Total revenue	$ 17,895	$ 12,114	$ 50,025	$ 32,929
Platform Services
Revenue:
Total revenue	$ 28,590	$ 15,306	$ 72,216	$ 45,232

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Stock-Based Compensation

9 Months Ended

Sep. 30, 2015

Share Based Compensation [Abstract]

Stock-Based Compensation

6. Stock-Based Compensation

On July 9, 2007, the board of directors and stockholders of the Company approved and adopted the TubeMogul, Inc. 2007 Equity Compensation Plan (the 2007 Plan) that permitted the grant of incentive and nonqualified stock options, stock awards (including restricted stock units), and stock appreciation rights to purchase shares of the common stock of the Company. Under the 2007 Plan, shares of common stock are reserved for the issuance of permitted awards to eligible participants. Options granted generally vest and become exercisable over a four-year term from the date of grant, at a rate of 25% after one year, then monthly on a straight-line basis thereafter. Options granted generally are exercisable for up to 10 years from the date of grant. Restricted stock units (RSUs) granted are generally released from restriction over a four-year term from the date of grant, at a rate of 25% after one year, then quarterly on a straight-line basis thereafter.

The Company has authorized and reserved a total of 6,093,703 shares of common stock under the 2007 Plan for the grant of permitted awards to employees, directors, consultants, and other service providers for the Company or related companies. The 2007 Plan terminated effective July 16, 2014, though it continues to govern outstanding awards issued under the 2007 Plan prior to July 16, 2014.

In February 2014, the Company’s board of directors and stockholders approved and adopted the TubeMogul, Inc. 2014 Equity Incentive Plan (the 2014 Plan), and the 2014 Plan became effective on July 16, 2014, the day immediately preceding the Company’s initial public offering (IPO). The 2014 Plan permits the grant of stock options, stock appreciation rights, restricted stock, RSUs, performance awards and other cash-based or stock-based awards. In addition, the 2014 Plan contains a mechanism through which the Company may adopt a deferred compensation arrangement in the future. Under the 2014 Plan, shares of common stock are reserved for the issuance of permitted awards to eligible participants. Options granted will generally vest and become exercisable over a four-year term from the date of grant, at a rate of 25% after one year, then monthly on a straight-line basis thereafter. Options granted generally are exercisable for up to 10 years from the date of grant. RSUs granted will generally be released from restriction over a four year term from the date of grant, at a rate of 25% after one year, then quarterly on a straight-line basis thereafter.

The Company initially authorized and reserved a total of 2,500,000 shares of common stock under the 2014 Plan for the grant of permitted awards. This reserve automatically increased on January 1, 2015 by 1,491,894 shares and will continue to increase on each subsequent anniversary through 2024, by an amount equal to the smaller of (a) five percent (5%) of the number of shares of common stock issued and outstanding on the immediately preceding December 31; or (b) an amount determined by the Company’s board of directors. This reserve may also be increased by up to an additional 4,975,000 shares, to include (a) any shares remaining available for grant under the 2007 Plan at the time of its termination; and (b) shares that would otherwise be returned to the 2007 Plan, upon the expiration or termination of awards granted under that plan.

Shares subject to awards which expire or are cancelled or forfeited will again become available for issuance under the 2014 Plan.

The shares available under the 2014 Plan will not be reduced by awards settled in cash.  The shares available under the 2014 Plan will be reduced by shares withheld to satisfy tax withholding obligations with respect to stock options and stock appreciation rights. The gross number of shares issued upon the exercise of stock appreciation rights or options exercised by means of a net exercise or by tender of previously owned shares will be deducted from the shares available under the 2014 Plan.

For purposes of the tables below, the 2007 Plan and the 2014 Plan are collectively referred to as the “Plan.” The following table summarizes the Plan’s stock option activity:

				Weighted-		Weighted-				Weighted
				average		average				average
	Outstanding			exercise		grant		Totalintrinsic		remaining		Aggregate
	number of			price per		date fair		value of		contractual		intrinsic
	shares			share		value		exercises		life		value
Balance at December 31, 2014		5,166		$	5.32						7.75	$	83,132
Options granted		112			14.91	$	8.95
Options exercised		(718	)		0.81			$	9,326
Options canceled		(62	)		3.69
Balance at September 30, 2015		4,498		$	6.30						7.34	$	27,846
Options exercisable and vested at    September 30, 2015		2,271		$	2.38						6.16	$	19,725
Options vested and expected to vest at    September 30, 2015		4,371		$	6.16						7.30	$	27,461

At September 30, 2015, there was approximately $9.4 million of total unrecognized compensation cost related to unvested options granted under the compensation plan. The remaining unrecognized compensation cost is expected to be recognized over the weighted average remaining vesting period of approximately 1.92 years at September 30, 2015.

The fair value of options granted to employees is estimated on the date of grant and to non-employees at each measurement period using the Black-Scholes-Merton option valuation model. This stock-based compensation expense valuation model requires the Company to make assumptions and judgments regarding the variables used in the calculation. These variances include the expected term (weighted average period of time that the options granted are expected to be outstanding), the expected volatility of the Company’s common stock, expected risk-free interest rate, expected dividends. To the extent actual results differ from the estimates, the difference will be recorded as a cumulative adjustment in the period estimates are revised. The Company uses the simplified calculation of expected term, as the Company does not have sufficient historical data to use any other method to estimate expected term. Expected volatility is based on an average of the historical volatilities of the common stock of several entities with characteristics similar to those of the Company. The expected risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant for periods corresponding with the expected life of the option. Expected forfeitures are based on the Company’s historical experience.

The following assumptions were used to calculate the fair value of options for employees:

	Nine Months Ended	Nine Months Ended
	September 30,	September 30,
	2014	2015
Risk-free interest rate	1.8% to 2.0%	1.18% to 1.63%
Dividend yield	—  %	—  %
Volatility	66% to 67%		70%
Expected term	6.0 to 6.4 years	4.5 to 6.5 years

The following table summarizes the Plan’s RSU activity:

				Weighted-
	Outstanding			Average
	number of			Grant Date
	shares			Fair Value
Balance at December 31, 2014		998		$	10.99
RSUs granted		1,467			14.76
RSUs released		(265	)		11.52
RSUs canceled		(224	)		13.73
Balance at September 30, 2015		1,976		$	13.86

The fair value of RSUs granted to employees is estimated on the date of grant and to non-employees at each measurement period using the fair value of the underlying common stock.

At September 30, 2015, there was approximately $22.5 million of total unrecognized compensation cost related to unvested RSUs granted under the compensation plan. The remaining unrecognized compensation cost is expected to be recognized over the weighted average remaining vesting period of approximately 3.31 years at September 30, 2015.

The following table summarizes the effects of stock-based compensation in the Company’s accompanying condensed consolidated statements of operations:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2014		2015		2014		2015
Research and development	$	283	$	1,043	$	594	$	2,513
Sales and marketing		244		1,058		577		2,572
General and administrative		261		1,333		665		3,728
Total stock-based compensation	$	788	$	3,434	$	1,836	$	8,813

In February 2014, the Company’s board of directors adopted and the stockholders approved the Company’s 2014 Employee Stock Purchase Plan (the ESPP), which became effective on July 17, 2014. The ESPP allows eligible employees to purchase shares of the Company’s common stock at a discount through payroll deductions of up to 15% of their eligible compensation, subject to any plan limitations. The administrator may, in its discretion, modify the terms of offering periods. Due to the timing of the IPO, the first offering period started July 17, 2014 and ended on February 16, 2015. Subsequent offering periods begin on February 17 and August 17 and end on August 16 and February 16, respectively. At the end of each offering period, employees are able to purchase shares at 85% of the lower of the fair market value of the Company’s common stock on the first trading day of the offering period or on the last day of the offering period. During the three months ended September 30, 2015, 89 shares were purchased under the ESPP. During the nine months ended September 30, 2015, 210 shares were purchased under the ESPP.

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2015

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

5. Commitments and Contingencies

Lease Commitments

At various dates throughout 2014 and during the nine months ended September 30, 2015, the Company entered into leases and subleases for office space. The leases expire at various dates through 2021.

The Company’s commitments for minimum rentals under these leases as of September 30, 2015 are as follows:

	Operating
	leases
2015 (remaining 3 months)	$	601
2016		2,076
2017		1,209
2018		875
2019		613
Thereafter		1,063
Total minimum lease payments	$	6,437

Rent expense was $644 and $692 for the three months ended September 30, 2014 and 2015, respectively and $1,681 and $1,968 for the nine months ended September 30, 2014 and 2015, respectively.  

Irrevocable Standby Letters of Credit

In July 2013, the Company entered into an irrevocable standby letter of credit in the amount of $334 for the benefit of its sub landlord. The irrevocable letter of credit automatically renews on its anniversary so long that the sub-lease is still effective. The letter of credit may be canceled prior to the expiration date upon the written request of the beneficiary.

In February 2014, the Company entered into an irrevocable standby letter of credit in the amount of $408 for the benefit of one of its lessors. The irrevocable letter of credit automatically renews on its anniversary so long that the lease is still effective.  The letter of credit may be canceled prior to the expiration date upon the written request of the beneficiary.

The Company is contractually required to keep the letters of credit for the term of the respective leases, therefore, the letters of credit are recorded as restricted cash and are classified as long-term assets on the condensed consolidated balance sheets.

Purchase Commitments

In August 2015, the Company entered into a commitment to purchase media from a single supplier in the amount of $7.5 million to $15 million, depending on the type of media purchased. These purchases can be made at any time from February 15, 2015 through September 30, 2016.  

Legal

The Company is involved from time to time in various claims and legal actions arising in the ordinary course of business. While it is not feasible to predict or determine the ultimate outcome of these matters, the Company believes that none of its current legal proceedings will have a material adverse effect on its financial position or results of operations.

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Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2015

Commitments And Contingencies Disclosure [Abstract]

Schedule of Commitments for Minimum Rentals Under Operating Lease

The Company’s commitments for minimum rentals under these leases as of September 30, 2015 are as follows:

	Operating
	leases
2015 (remaining 3 months)	$	601
2016		2,076
2017		1,209
2018		875
2019		613
Thereafter		1,063
Total minimum lease payments	$	6,437

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The Company and its Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2015

Accounting Policies [Abstract]

Schedule of Allowance for Doubtful accounts

The following table presents the changes in the allowance for doubtful accounts:

	Year Ended			Nine Months Ended
	December 31,			September 30,
	2014			2015
Balance, beginning of period	$	(714	)	$	(1,369	)
Additions to allowance		(903	)		(1,100	)
Write offs, net of recoveries		248			512
Balance, end of period	$	(1,369	)	$	(1,957	)

Schedule of Changes in Allowance for Credit Memos

The following table presents the changes in the allowance for credit memos:

	Year Ended			Nine Months Ended
	December 31,			September 30,
	2014			2015
Balance, beginning of period	$	—		$	(460	)
Additions to allowance		(1,875	)		(2,139	)
Issued credit memos		1,415			1,924
Balance, end of period	$	(460	)	$	(675	)

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Income Taxes

9 Months Ended

Sep. 30, 2015

Income Tax Disclosure [Abstract]

Income Taxes

9. Income Taxes

The Company is subject to income tax in the U.S. as well as other tax jurisdictions in which it conducts business. Earnings from non-U.S. activities are subject to local country income tax. The Company does not provide for federal income taxes on the undistributed earnings of its foreign subsidiaries as such earnings are to be reinvested indefinitely.

The Company recorded an income tax provision of $64 and $48 for the three months ended September 30, 2014 and 2015, respectively, and $201 and $257 for the nine months ended September 30, 2014 and 2015, respectively, related to foreign income taxes and state minimum taxes. Based on the available objective evidence during the nine months ended September 30, 2015, management believes it is more likely than not that the tax benefits of the U.S. and Japan losses incurred during the nine months ended September 30, 2015 may not be realized by the end of the 2015 fiscal year. Accordingly, the Company did not record the tax benefits of the U.S. and Japan losses incurred during the nine months ended September 30, 2015. The primary difference between the effective tax rate and the federal statutory tax rate relates to foreign tax rate differences, meals and entertainment and state and local minimum and capital taxes. As of September 30, 2015, the Company had no material uncertain tax positions.

Utilization of the net operating loss carryforwards may be subject to an annual limitation due to the ownership change limitations provided by the Internal Revenue Code of 1986, as amended (the Code), and similar state provisions. Any annual limitation may result in the expiration of net operating losses before utilization.

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Net Loss Per Share

9 Months Ended

Sep. 30, 2015

Earnings Per Share [Abstract]

Net Loss Per Share

7. Net Loss per Share

The Company calculates its basic and diluted net loss per share in conformity with the two-class method required for companies with participating securities. Under the two-class method, in periods when the Company has net income, net income is determined by allocating undistributed earnings, calculated as net income less current period convertible preferred stock non-cumulative dividends, between common stock and convertible preferred stock. In computing diluted net income, undistributed earnings are re-allocated to reflect the potential impact of dilutive securities.

The Company’s basic net loss per share is calculated by dividing the net loss by the weighted-average number of shares of common stock outstanding for the period. The diluted net loss per share is computed by giving effect to all potential dilutive common stock equivalents outstanding for the period. For purposes of this calculation, options to purchase common stock, RSUs and shares to be issued under the ESPP are considered common stock equivalents but have been excluded from the calculation of diluted net loss per share as their effect is antidilutive as the Company had net losses for the three months ended September 30, 2014 and 2015, and for the nine months ended September 30, 2014 and 2015.

The following table sets forth the computation of net loss per common share:

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2014			2015			2014			2015
Net Loss	$	(1,717	)	$	(3,754	)	$	(400	)	$	(12,231	)
Weighted-average shares used in computing basic and    diluted net loss per share		29,059			34,679			14,346			31,919
Basic and diluted net loss per share	$	(0.06	)	$	(0.11	)	$	(0.03	)	$	(0.38	)

The following securities were excluded from the calculation of diluted net loss per share because their effect would have been anti-dilutive for the periods presented:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2014		2015		2014		2015
Employee stock options		3,965		4,498		3,965		4,498
RSUs		748		1,976		748		1,976
ESPP		124		122		124		122
Total		4,837		6,596		4,837		6,596

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Employee Benefit Plans

9 Months Ended

Sep. 30, 2015

Postemployment Benefits [Abstract]

Employee Benefit Plans

8. Employee Benefit Plans

The Company established a 401(k) Profit Sharing Plan (the 401(k) Plan) in 2009, pursuant to which the Company may make a discretionary contribution to the 401(k) Plan each year, allocable to all plan participants. The Company is responsible for administrative expenses of the 401(k) Plan. On January 1, 2015, the Company began matching 25% of the employees’ contributions, subject to vesting conditions, to the 401(k) Plan. The Company contributed $210 and $601 for the three and nine months ended September 30, 2015, respectively.

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Segment Information

9 Months Ended

Sep. 30, 2015

Segment Reporting [Abstract]

Segment Information

10. Segment Information

The Company considers operating segments to be components of the Company in which separate financial information is available that is evaluated regularly by the Company’s chief operating decision maker (CODM) in deciding how to allocate resources and in assessing performance. The CODM for the Company is the Chief Executive Officer. The CODM reviews financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance. The Company has one business activity, and there are no segment managers who are held accountable for operations, operating results or plans for levels or components below the consolidated unit level. Accordingly, the Company has determined that it has a single operating and reportable segment, which is to design, develop and market software for brand advertising.

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Commitments and Contingencies - Commitments For Minimum Rentals Under Operating Lease (Details) $ in Thousands	Sep. 30, 2015 USD ($)
Commitments And Contingencies Disclosure [Abstract]
2015 (remaining 3 months)	$ 601
2016	2,076
2017	1,209
2018	875
2019	613
Thereafter	1,063
Total minimum lease payments	$ 6,437

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Accrued Liabilities (Tables)

9 Months Ended

Sep. 30, 2015

Payables And Accruals [Abstract]

Schedule of Accrued Liabilities

Accrued liabilities at December 31, 2014 and September 30, 2015, consisted of the following:

	December 31,		September 30,
	2014		2015
Accrued media costs	$	41,436	$	38,554
Sales commissions		2,826		2,609
Payroll and related expenses		3,757		4,494
Other accrued expenses		2,419		3,652
	$	50,438	$	49,309

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The Company and its Significant Accounting Policies - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended	6 Months Ended	9 Months Ended
	Jul. 10, 2015	Sep. 30, 2015	Jun. 30, 2015	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Schedule Of Significant Accounting Policies [Line Items]
Proceeds from public offering of common stock, net of underwriting discounts, commission and offering costs				$ 58,333	$ 46,791
Cash and cash equivalents		$ 57,501		57,501		$ 45,908
Unrealized gains from forward contract derivatives		634		400
Outstanding forward contracts notional amount		$ 20,000		$ 20,000
Common Stock | Over-Allotment Option
Schedule Of Significant Accounting Policies [Line Items]
Issuance of common stock	469,486,000
Net proceeds from partial exercise of over-allotment option	$ 7,000
Follow-On Offering | Common Stock
Schedule Of Significant Accounting Policies [Line Items]
Issuance of common stock			3,500,000,000
Proceeds from public offering of common stock, net of underwriting discounts, commission and offering costs			$ 52,200
Underwriting discounts and commissions			2,900
Offering cost			$ 875
Issuance price per share			$ 15.75
Stockholders | Common Stock
Schedule Of Significant Accounting Policies [Line Items]
Issuance of common stock			1,763,246,000

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Net Loss Per Share - Schedule of Computation of Net Loss per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Earnings Per Share [Abstract]
Net loss	$ (3,754)	$ (1,717)	$ (12,231)	$ (400)
Weighted-average shares used in computing basic and diluted net loss per share	34,679	29,059	31,919	14,346
Basic and diluted net loss per share	$ (0.11)	$ (0.06)	$ (0.38)	$ (0.03)

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Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (3,754)	$ (1,717)	$ (12,231)	$ (400)
Other comprehensive loss:
Foreign currency translation adjustments	(12)	17	(145)	(113)
Comprehensive loss	$ (3,766)	$ (1,700)	$ (12,376)	$ (513)

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Debt Obligations

9 Months Ended

Sep. 30, 2015

Debt Disclosure [Abstract]

Debt Obligations

4. Debt Obligations

Note Payable

Growth Capital Term-Debt and Working Capital Line of Credit

On August 21, 2013, the Company entered into an amended and restated loan and security agreement providing for a growth capital facility and a revolving line of credit. Under the growth capital facility, the Company has the ability to borrow a maximum of $4.25 million in growth capital term loan advances, which bear an interest rate of 4.75% and are secured by the Company’s assets. Under the revolving line of credit, the Company may be advanced up to $20.0 million based on 80% of eligible accounts receivable less the outstanding growth capital term loan balance at the advance date as defined in the amended agreement. Monthly payments of principal and interest are payable in equal installments.

On April 18, 2014, the Company entered into an amendment to its amended and restated loan and security agreement dated August 21, 2013. The amendment increased the revolving line of credit to $35.0 million, extended the availability and maturity of the revolving line through April 1, 2016, and added a new $3.0 million equipment term loan facility. The amendment also introduced a new financial covenant that requires the Company meet certain minimum revenue levels. As of September 30, 2015, the Company had available borrowings under the revolving line of credit of $34.0 million. The equipment term loan facility expired as of December 31, 2014 and was not renewed.

The amendment also increased the amount the Company may borrow under the revolving line of credit up to the lesser of (a) $35.0 million, and (b) a borrowing base equal to 80% of eligible accounts receivable (as defined in the agreement), as amended. Advances under the revolving line of credit accrue interest at a floating per annum rate equal to the Western Edition Wall Street Journal prime rate. While the interest rate applicable to outstanding advances under the revolving line of credit did not change under the amendment, the Company is now required to pay a minimum amount of interest equal to the amount of interest that would accrue per quarter on a notional outstanding principal balance of $2.0 million, or $1.0 million if the Company maintains more than $50.0 million in deposits with the lender.

If the combined amount of the Company’s cash on deposit with the lender, plus the availability under the revolving line of credit is less than $10.0 million, then the Company is required to deliver additional reporting, collections on accounts receivable are applied to immediately reduce the outstanding amount of advances under the revolving line, and the lender is allowed to take, in good faith, additional reserves against availability under the revolving line of credit. As of September 30, 2015, the Company was not in compliance with a covenant requiring it to maintain 80% of its cash in accounts with the lender. A waiver was obtained and the Company rectified its non-compliance on October 30, 2015.

As of September 30, 2015, the Company had $1.0 million of outstanding borrowings under the revolving line of credit.

Future Payments

Future principal payments of long-term debt and line of credit as of September 30, 2015 were as follows:

2015 (remaining 3 months)	$	1,251
Total		1,251
Less current portion		(1,251	)
Noncurrent portion of debt	$	—

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The Company and its Significant Accounting Policies - Schedule of Allowance for Doubtful Accounts (Details) - Doubtful Accounts Receivables and Credit Memos - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance, beginning of period	$ (1,369)	$ (714)
Additions to allowance	(1,100)	(903)
Write offs, net of recoveries	512	248
Balance, end of period	$ (1,957)	$ (1,369)

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Stock-Based Compensation - Schedule of Assumptions Used to Calculate Fair Value of Options (Details)	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Awards Subject To Market Condition
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Risk-free interest rate, Minimum	1.18%
Risk-free interest rate, Maximum	1.63%
Volatility	70.00%
Minimum | Awards Subject To Market Condition
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected term	4 years 6 months
Maximum | Awards Subject To Market Condition
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected term	6 years 6 months
Employees
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Risk-free interest rate, Minimum		1.80%
Risk-free interest rate, Maximum		2.00%
Volatility, Minimum		66.00%
Volatility, Maximum		67.00%
Employees | Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected term		6 years
Employees | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected term		6 years 4 months 24 days

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Property, Equipment and Software (Tables)

9 Months Ended

Sep. 30, 2015

Property Plant And Equipment [Abstract]

Schedule of Property, Equipment and Software

Property, equipment and software as of December 31, 2014 and September 30, 2015 consisted of the following:

	December 31,			September 30,
	2014			2015
Computer, software and office equipment	$	1,928		$	3,697
Capitalized internal use software costs		1,166			2,928
Furniture and fixtures		1,049			1,916
Leasehold improvements		1,043			1,452
		5,186			9,993
Less accumulated depreciation and amortization		(1,284	)		(2,710	)
Total	$	3,902		$	7,283