Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ý No o

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes o No ý

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 ý No o

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 Regulations 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 ý No o

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this form 10-K. o

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.

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

The aggregate market value of the 27,893,620 shares held by non-affiliates as of June 30, 2015 (computed based on the closing price on such date as reported on the NASDAQ Global Select Market) was $897,895,628.

As of March 3, 2016, there were 45,962,954 shares of the registrant's common stock, par value $0.001 per share, outstanding.

Portions of the Company's definitive proxy statement, to be filed pursuant to Regulation 14A under the Securities Exchange Act of 1934, for its 2016 Annual Meeting of Stockholders are incorporated by reference in Part III of this Form 10-K.

This Annual Report on Form 10-K contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 and which are subject to substantial risks and uncertainties. In some cases, you can identify forward-looking statements by the words "may," "might," "will," "could," "would," "should," "expect," "intend," "plan," "objective," "anticipate," "believe," "estimate," "predict," "project," "potential," "continue" and "ongoing," or the negative of these terms, or other comparable terminology intended to identify statements about the future. These statements involve known and unknown risks, uncertainties and other factors that may cause our actual results, levels of activity, performance or achievements to be materially different from the information expressed or implied by these forward-looking statements. Although we believe that we have a reasonable basis for each forward-looking statement contained in this Annual Report on Form 10-K, we caution you that these statements are based on a combination of facts and factors currently known by us and our expectations of the future, about which we cannot be certain. Forward-looking statements include statements about:

You should refer to the risks described in Part I, Item 1A "Risk Factors" in this Annual Report on Form 10-K for a discussion of important factors that may cause our actual results to differ materially from those expressed or implied by our forward-looking statements. As a result of these factors, we cannot assure you that the forward-looking statements in this Annual Report on Form 10-K will prove to be accurate. Furthermore, if our forward-looking statements prove to be inaccurate, the inaccuracy may be material. In light of the significant uncertainties in these forward-looking statements, you should not regard these statements as a representation or warranty by us or any other person that we will achieve our objectives and plans in any specified timeframe, or at all. We undertake no obligation to publicly update any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

You should read this Annual Report on Form 10-K completely and with the understanding that our actual future results may be materially different from what we expect. We qualify all of our forward-looking statements by these cautionary statements.

2U enables great colleges and universities to bring their degree programs online, allowing them to transform the way higher education is delivered. We believe that our Platform, a fusion of cloud-based software-as-a-service technology and technology-enabled services, allows our clients to reach students globally, enabling the education they provide to reach its highest potential so students can reach theirs.

We are a leading provider of cloud-based software-as-a-service, or SaaS, technology fused with technology-enabled services, which we refer to as our Platform. Our Platform enables leading nonprofit colleges and universities to deliver their high quality education to qualified students anywhere. Our SaaS technology consists of an innovative online learning environment, which we refer to as Online Campus, and our operations applications. This technology is fused with technology-enabled services, to complete our Platform. Our Platform allows our clients' programs to expand and operate at scale, providing the comprehensive infrastructure colleges and universities need to attract, enroll, educate, support and graduate their students. By leveraging our Platform, we believe our clients are able to expand their addressable markets while providing educational engagement, experiences and outcomes to their online students that match or exceed those of their on-campus offerings.

Our clients use the Online Campus portion of our Platform to offer high quality educational content, instructor-led classes averaging 12 students per session in a live, intimate and engaging setting, and a rich social networking experience, all accessible through proprietary web-based and mobile applications. Online Campus challenges every student to learn from the front row and every faculty member to engage students in new and innovative ways. Our clients use the operations applications within our Platform to expand, enable and support their online operations, and integrate those operations with their existing university systems. These applications provide the content management, admissions application processing, customer relationship management and other functionality necessary to effectively operate our clients' programs. Our Platform also provides clients with real-time data and deep analytical insight related to student performance and engagement, student and faculty satisfaction and enrollment. We believe that the SaaS technology within our Platform is flexible, easy to use, highly scalable and characterized by a high level of availability and security.

The technology-enabled services we provide within our Platform are designed to improve enrollment and retention of our clients' students as well as to provide those students with a complete, high quality educational experience. We have primary responsibility for identifying qualified students for our clients' programs, generating potential student interest in the programs and driving applications to the programs. We have developed sophisticated digital program marketing and student acquisition capabilities, and we work closely with our clients to help them create highly engaging multimedia instructional content for delivery through Online Campus. We also provide other services that support the complete lifecycle of a higher education program, including advising prospective students through the admissions application process, providing technical, success coaching and other support, facilitating accessibility to individuals with disabilities, facilitating in-program field placements, and obtaining state regulatory approvals. We provide the significant domain expertise and operating capacity our clients require to scale and operate successfully in the online environment.

Our clients are leading nonprofit colleges and universities, 12 of which were ranked by U.S. News and World Report among the top 75 undergraduate institutions in its 2016 National University Rankings. Our clients primarily use our Platform to offer full graduate degree programs online. Through our uncompromising focus on quality and deep understanding of the higher education

environment, we believe we have become not only a valued provider of the technology services our clients use to implement and manage their critical online education operations, but also a trusted steward of their brands.

We believe that by delivering high quality degree programs online using our Platform, our clients can improve educational outcomes and career opportunities for a larger number of students and, by doing so, broaden the global reach of their brands while maintaining their academic rigor and admissions standards. By deploying our Platform, clients give their students, who receive the same degree or credit as their on-campus counterparts and generally pay equivalent tuition, the option of pursuing their educations without potentially incurring the burden of moving, leaving existing employment or giving up family and community support networks. This can substantially reduce the total cost of obtaining a degree and lower a student's total debt burden. It can also allow students for whom relocating is not an option to obtain a higher quality education than they might be able to access in their local communities.

Full course equivalent enrollments in our clients' programs grew from 31,338 during the twelve months ended December 31, 2013 to 57,019 during the twelve months ended December 31, 2015, representing a compound annual growth rate of 35%. We measure full course equivalent enrollments in our clients' programs by determining, for each of the courses offered during a particular period, the number of students enrolled in that course multiplied by the percentage of the course completed during that period. Any individual student may be enrolled in more than one course during a period. From our inception through December 31, 2015, more than 17,500 unique individuals have enrolled as students in our clients' programs, and 84% of students who have entered these programs have either graduated or remain enrolled. By the time the last of these individuals graduate or leave our clients' programs, we estimate that they will have generated more than $1.0 billion in total program tuition and fees for our clients.

Our client relationships are characterized by close, ongoing collaboration with faculty and administration, as well as a deep integration between our clients' academic missions and operations and our Platform. Our compensation from our clients consists primarily of a specified share of the tuition and fees paid to our clients by students in the programs we enable, which we believe aligns our interests with those of our clients. This revenue model, combined with long contractual terms, enables us to make the investment in technology, integration, content production, program marketing, student and faculty support and other services necessary to create large, successful programs. In addition, our proprietary program-selection algorithm enables us to deploy capital with greater confidence as we can systematically identify universities and programs that we believe have the highest probability of success with our Platform.

Our client contracts generally have initial terms between 10 and 15 years in length, and, since our inception, all of the clients that have engaged us remain active. In addition, three of our clients who have launched programs and have students enrolled have elected to extend the initial terms of four program agreements with us in advance of those contracts renewing. With these extensions, the initial terms of those programs now extend to between 2027 and 2032.

A significant percentage of our annual revenue is related to students returning to our clients' programs after their first semester. In the twelve months ended December 31, 2015, 58% of our revenue was related to students who had enrolled and completed their first semester prior to the start of the year. We believe this high percentage of revenue attributable to returning students contributes to the predictability and recurring nature of our business.

We have achieved significant growth in a relatively short period of time. For the years ended December 31, 2015, 2014 and 2013, our revenue was $150.2 million, $110.2 million and $83.1 million, respectively. For the years ended December 31, 2015, 2014 and 2013, our net losses were $26.7 million, $29.0 million and $28.0 million, respectively, and our Adjusted EBITDA loss, a non-GAAP measure,

was $6.6 million, $14.8 million and $21.2 million, respectively. For a reconciliation of Adjusted EBITDA loss to net loss, see "Selected Financial Data—Adjusted EBITDA Loss."

Adjusted EBITDA loss improvement over the periods presented is due partly to the maturing of programs within our entire program portfolio. Because we incur program marketing and sales expenses prior to generating the revenue related to those expenses, programs will typically show an adjusted EBITDA loss for several years prior to reaching adjusted EBITDA profitability. The following table presents a reconciliation, after allocation of all corporate costs, of full year 2015 net (loss) income margin to adjusted EBITDA (loss) income margin for our client programs, grouped by the length of time since program launch, as of December 31, 2015. For a list of programs and their respective launch dates, see "Business—Clients."

The global higher education industry is undergoing a significant transition. Due primarily to macroeconomic conditions, public higher education institutions in the United States and other countries in recent years have faced decreased governmental financial support and increased volatility in graduate enrollment rates. At the same time, we believe the long-term growth prospects of the global higher education industry are strong, as governments, corporations and individuals around the world are increasingly recognizing the importance of education in a knowledge-based economy.

In addition, technology, and online learning in particular, is reshaping how institutions deliver and individuals access education. Rising rates of internet penetration, the rapid proliferation of mobile devices and the growth in cloud-based services are broadening the accessibility of educational content and services as well as the potential reach of educational institutions. As a result, colleges and universities are rethinking their operational and business models, determining how to incorporate technology-enabled offerings into their long-term growth strategies and seeking cost-effective ways to expand their academic reach.

Higher education is a large and well-established market, both in the United States and worldwide. In the United States alone, total revenue for all degree-granting postsecondary institutions was over $555 billion for the 2012-2013 academic year, according to a May 2015 report by the U.S. National Center for Education Statistics. The decade between 2000 and 2010 saw a 37% increase in enrollment in postsecondary degree granting institutions in the United States, from 15.3 million to 21.0 million, according to the U.S. Department of Education, and that number is expected to rise to 24 million by 2022, a further increase of 14%.

The market for online postsecondary education has grown more rapidly than the overall postsecondary market, driven by the increased acceptance of online programs among students, academic institutions and employers, and the greater flexibility and convenience of many online programs.

We believe that in the past, many nonprofit institutions lacked confidence that online programs could offer sufficient quality to align with their brands, market reputations and academic standards. However, academic research, as well as our own experience, lead us to believe that academic outcomes in online environments are generally equivalent to or better than those in traditional face-to-face environments. We also believe nonprofit institutions have been hesitant to adopt new initiatives given that they lacked the capital, technological expertise and marketing capabilities necessary to build significant online operations. However, as technology has improved, online education has also improved and can now provide the quality educational experiences and student outcomes that leading nonprofit colleges and universities demand. In our clients' programs, for example, students experience high quality educational content (both synchronous and asynchronous), instructor-led classes averaging 12 students per session in a live, intimate and engaging setting, and a rich social networking experience. We believe this leads to an intimate and successful learning environment that rivals on campus program quality, and that nonprofit colleges and universities will increasingly consider online education as a means to cost-effectively extend their mission and reach.

During this period of transition, providers of higher education are facing several fundamental challenges. First, many institutions recognize that they do not possess the human or technological resources necessary to implement a successful online learning strategy. Scaling degree programs online requires robust technology platforms and support services, significant expertise in digital marketing and recruiting, and the ability to create highly engaging multimedia content. These are resources that colleges and universities have traditionally not possessed.

Second, many institutions face increasing financial challenges that prevent them from investing more heavily in developing technology-based solutions. In the United States, funding and endowment returns have declined in recent years. At the end of fiscal year 2012, the market value of the endowment funds of colleges and universities in the United States was $425 billion, reflecting an increase of only 1% that year. In addition, in 2012, total state support for higher education declined by 7% to $81.1 billion, and increased only slightly to $81.6 billion in 2013, according to a 2013 annual report from the State Higher Education Executive Officers Association. Given this environment, institutions of higher education are actively looking for ways to increase revenue, such as by raising tuition or increasing enrollment.

Third, the shift in education towards digital media is altering the competitive landscape but the impact on traditional higher education institutions is yet unclear. The internet is allowing new forms of instructional content and courses to proliferate, including, without limitation, a variety of non-degree programs providing certificates or other credentials in technology, management and other specific skills. If in the future these non-degree alternatives become widely accepted by students and employers as a substitute for full degrees, traditional higher education institutions that fail to adapt may cede market share to nontraditional competitors.

We believe that an increasing number of institutions of higher education globally will implement online learning strategies to extend their reach and remain relevant to the needs of students. We believe we have a significant opportunity to help leading nonprofit colleges and universities implement

and scale high quality online degree programs, while protecting and delivering on the promise of their brands thereby improving the reputation of online learning generally. We believe that the transition of the higher education market to cloud-based online delivery is just beginning, and that we are uniquely positioned to capture market share by delivering our compelling, value-producing Platform to these institutions. Our Platform provides nonprofit colleges and universities with the ability to capitalize on the disruptive forces of online education while extending the academic reach of their programs. By doing so, our clients are able not only to fulfill their missions but also to develop significant new sources of revenue through meaningful additional enrollments.

Our Platform provides integrated cloud-based SaaS technology and technology-enabled services that enables leading nonprofit colleges and universities to deliver high quality online degree programs. The SaaS portion of our Platform is comprised of Online Campus and our operations applications. Online Campus supports a wide range of university functions, such as enabling high quality educational content, instructor-led classes averaging 12 students per session in a live, intimate and engaging setting, and a rich social networking experience, all accessible through proprietary web-based and mobile applications. It also serves as a hub for student and faculty interaction, and incorporates a live, or synchronous, learning experience, with pre-produced, or asynchronous, educational content and dynamic social networking.

Our clients use the operations applications within our Platform to expand, enable and support their online operations, and we integrate these applications with the various student information and other operating systems they use to manage functions within their institutions. These applications provide the content management, admissions application processing, customer relationship management, and other functionality necessary to effectively operate our clients' programs. Our Platform also provides our clients with real-time data and deep analytical insight related to student performance and engagement, student and faculty satisfaction, and enrollment. We believe that the SaaS technology within our Platform is flexible, easy to use, highly scalable and characterized by a high level of availability and security.

In conjunction with our cloud-based SaaS technology, we provide technology-enabled services that support the complete lifecycle of a higher education program. These include assisting our clients in developing engaging premium quality academic content that we host and deliver on our Online Campus, attracting students, advising prospective students through the admissions application process, providing technical, success coaching and other support, facilitating accessibility to individuals with disabilities, facilitating in-program field placements, and obtaining state regulatory approvals. Our clients retain control of, and responsibility for, accreditation, developing admissions criteria and making admissions decisions, financial aid, selecting and hiring faculty, reviewing and approving the curriculum, and the direct delivery of academic services such as teaching, grading and assessment.

We intend to continue our industry leadership as a provider of cloud-based SaaS technology and technology-enabled services that enable leading nonprofit colleges and universities to deliver education online. Our approach to growth is disciplined and focused on long-term success. The principal elements of our strategy are to:

Our Platform consists of our cloud-based SaaS technology fused with technology-enabled services.

Our innovative online learning environment, Online Campus, enables our clients to offer high quality educational content together with instructor-led classes in a live, intimate and engaging setting, averaging 12 students per session, all accessible through proprietary web-based and mobile applications. This virtual classroom experience is enhanced by extensive social networking capabilities that enable ongoing interaction and collaboration. Online Campus allows our clients to provide a personalized learning environment for faculty and students as well as a robust online educational community.

Our clients use the operations applications within our Platform to expand, enable and support their online operations, and integrate those operations with their existing university systems. These applications provide the content management, admissions application processing, customer relationship management, and other functionality necessary to effectively operate our clients' programs. In addition, these applications provide clients with real-time data and deep analytical insight related to student performance and engagement, student and faculty satisfaction, and enrollment.

We offer a comprehensive suite of technology-enabled services that support the complete lifecycle of a higher education program. These services include the following:

The cloud-based SaaS technology within our Platform is designed to deliver an exceptional end-user experience in a secure environment. To increase the speed at which we develop and enhance our solutions, we use open-source technology and custom development of our own instructional design tools and learning components.

Our technology stack resides completely in the cloud, with a high level of security and horizontal scalability. We work with Amazon Web Services, our cloud hosting provider, to ensure high levels of redundancy and general preparedness. We have the ability to manage hundreds of server instances in Amazon Web Services and elsewhere through our automated deployment technologies.

Our application programming interface, or API, is at the core of all of the SaaS technology within our Platform providing a standardized way to provision, manage, engage and deliver content to students, faculty and administrators. The API supports advanced analytics that allow us to search and analyze student usage data to evaluate course content, inform continuous technology development and improve user experiences. The API manages authentication and access for our entire technology stack and is designed to manage and interface with new technologies as they are introduced.

Our development process follows best practices in web security, including formal design reviews by operations security consultants, threat modeling and risk assessments. All deployed software undergoes recurring penetration testing performed by certified industry experts. Our security risk assessment reviews begin during the design phase and continue through ongoing operations.

All of the applications and application components within our SaaS technology are designed from the ground up to produce significant, readable and interpretable data to centralized systems in the form of monitors and logs that allow us to proactively identify and mitigate potential capacity, performance and security issues. We design our SaaS technology to industry security standards as well as requirements set out in current applicable regulations and standards.

We dedicate the bulk of our program marketing and sales efforts to acquiring students for our clients' programs, and have developed highly sophisticated internet-based program marketing and student acquisition capabilities. Our model is not dependent on launching a large number of new programs per year, either with new or existing clients. Accordingly, we do not maintain a sales force targeted at new client or program acquisition. Rather, our new clients and programs are largely generated through a direct approach by our senior management to selected colleges and universities. We use a proprietary program selection algorithm to develop our pipeline of target clients. This data-centric model uses internally generated, publicly available and purchased data on market size, selectivity, student demographics, competition and other factors to identify combinations of colleges and universities and programs we believe will have the best prospects of long-term success.

The following table sets forth the programs we currently enable for our clients and their respective program launch dates:

University/School	Program Name	Program Launch Date

University of Southern California—Rossier School of Education	USC Rossier Online	April 2009
University of Southern California—School of Social Work	MSW@USC	October 2010
Georgetown University—School of Nursing and Health Studies	Nursing@Georgetown	March 2011
University of North Carolina at Chapel Hill—Kenan-Flagler Business School	MBA@UNC	July 2011
Washington University in St. Louis—School of Law	@WashULaw	January 2013
University of North Carolina at Chapel Hill—School of Government	MPA@UNC	January 2013
American University—School of International Service	International Relations Online	May 2013
The George Washington University—Milken Institute School of Public Health	MPH@GW	June 2013
Simmons College—School of Nursing and Health Sciences	Nursing@Simmons⁽¹⁾	October 2013
University of California, Berkeley—School of Information	DataScience@Berkeley	January 2014
The George Washington University—Milken Institute School of Public Health	MHA@GW	April 2014
Simmons College—School of Social Work	SocialWork@Simmons	July 2014
Syracuse University—Martin J. Whitman School of Management	MBA@Syracuse	January 2015
Southern Methodist University—Interdisciplinary curriculum	DataScience@SMU	January 2015
Northwestern University—The Family Institute	Counseling@Northwestern	March 2015
Syracuse University—S.I. Newhouse School of Public Communications	Communications@Syracuse	July 2015
American University—Kogod School of Business	MBA@American	October 2015

In addition, the following table sets forth the programs we have announced and expect to launch in the future:

University/School		Program Name

Yale University—School of Medicine		Yale PA Online
Simmons College—Interdisciplinary curriculum		Simmons Enterprise Program
New York University—Steinhardt School of Culture, Education, and Human Development		Speech Pathology Program
New York University—Steinhardt School of Culture, Education, and Human Development		School Counseling Program
New York University—Steinhardt School of Culture, Education, and Human Development		Occupational Therapy Program
University of Southern California—School of Social Work, Department of Nursing		Nursing@USC
New York University—Steinhardt School of Culture, Education, and Human Development		Counseling for Mental Health
The George Washington University—Milken Institute School of Public Health		HealthInformatics@GW
Syracuse University—School of Information Studies		iSchool@Syracuse
Syracuse University—College of Engineering and Computer Science		Engineering@Syracuse
Syracuse University		DataScience@Syracuse

Our long-term client contracts do not include termination rights for convenience. Most contracts impose liquidated damages for a client's non-renewal, unless the client otherwise terminates due to our uncured breach. Each of our clients owns all of the academic content that we help them develop, although we are generally not obligated to develop content that will be functional anywhere but within Online Campus.

Our contracts also set forth the parties' respective rights to offer competitive programs. For example, some contracts permit us to offer competitive programs with other schools whose potential students are not academically qualified or otherwise interested in the program we offer with our client. Other contracts prohibit us from offering competitive programs with a specific list of schools, whether a certain number as listed on U.S. News & World Report's "best" schools list or a specifically enumerated list of schools negotiated with our client. In addition, any limitation on our ability to offer competitive programs becomes inapplicable if a client either refuses to scale the program to accommodate all students qualifying for admission into the program, or raises the program admissions standards above those at the time of contract execution. In addition, our contracts generally prohibit our clients from offering any online competitive program. Most of our more recent contracts either do not restrict our ability to offer competitive programs or provide for only limited restrictions.

We have contracts with the USC Rossier School of Education, or Rossier, to enable a Master of Arts in Teaching program, or MAT program, and with the USC School of Social Work to enable both a Master of Social Work program and a Master of Nursing program. Under our contracts with each of Rossier and the School of Social Work, we are entitled to a specified percentage of the net program proceeds. With Rossier, we are eligible for an increased percentage of net program proceeds if the net program proceeds exceed a specified level. Under our amended contract with the School of Social Work, the initial term expires on June 30, 2030. As part of this amendment, we agreed to provide fixed and contingent cash payments over time and a reduction in our revenue share percentage to be phased in over time. In exchange of the foregoing, the school agreed to significantly reduce the exclusivity obligations contained in the original contract.

Both contracts provide for automatic renewal for successive three-year terms unless either party gives one-year notice of non-renewal, and liquidated damages if Rossier or the School of Social Work, as the case may be, fails to renew its respective contract after any term.

Our programs with Simmons College accounted for 16% of our revenue for the year ended December 31, 2015, and for less than 10% of our revenue for the year ended December 31, 2014. Our programs with the University of North Carolina accounted for 12% and 13% of our revenue for the years ended December 31, 2015 and 2014, respectively. Our program with the Georgetown University School of Nursing and Health Studies accounted for less than 10% of our revenue for the year ended December 31, 2015, and for 14% of our revenue for the year ended December 31, 2014.

The overall market for technology solutions that enable higher education providers to deliver education online is highly fragmented, rapidly evolving and subject to changing technology, shifting needs of students and educators and frequent introductions of new methods of delivering education online. Several competitors provide solutions that compete with some of the capabilities of our Platform. Two such competitors, EmbanetCompass and Deltak, were acquired in 2012 by Pearson and John Wiley & Sons, respectively, both of which are large education and publishing companies. There are also several private companies, including HotChalk and Everspring Partners, providing some or all of the services we provide, and these companies may choose to pursue some of the institutions we target. In addition, nonprofit colleges and universities may elect to continue using or develop their own online learning solutions in-house.

We expect that the competitive landscape will expand as the market for online programs at nonprofit institutions matures. We believe the principal competitive factors in our market include the following:

We believe we compete favorably on the basis of these factors. Our ability to remain competitive will depend, to a great extent, upon our ability to consistently deliver high quality technology solutions, meet client needs for content development, and acquire, support and retain students who achieve high quality outcomes.

We protect our intellectual property by relying on a combination of copyrights, trademarks, trade secrets, patent applications and contractual agreements. For example, we rely on trademark protection in the United States and various foreign jurisdictions to protect our rights to various marks, including 2U, NO BACK ROW, and other distinctive logos associated with our brand. We also have two patent

applications pending in the United States, which are directed to computer-implemented processes that facilitate asynchronous student responses to teacher questions.

We ensure that we own intellectual property created for us by signing agreements with employees, independent contractors, consultants, companies, and any other third party that creates intellectual property for us that assign any intellectual property rights to us.

We have also established business procedures designed to maintain the confidentiality of our proprietary information, including the use of confidentiality agreements with employees, independent contractors, consultants and companies with which we conduct business.

We continue to evaluate developing and expanding our intellectual property rights in patents, trademarks and copyrights, as available through registration in the United States and internationally.

For important additional information related to our intellectual property position, please review the information set forth in "Risk Factors—Risks Related to Intellectual Property."

The higher education industry is heavily regulated. Institutions of higher education that award degrees and certificates to signify the successful completion of an academic program are subject to regulation from three primary entities: the U.S. Department of Education, or DOE, accrediting agencies and state licensing authorities. Each of these entities promulgates and enforces its own laws, regulations and standards, which we refer to collectively as education laws.

We contract with postsecondary institutions that are subject to education laws. In addition, we ourselves are required to comply with certain education laws as a result of our role as a service provider to institutions of higher education, either directly or indirectly through our contractual arrangements with clients. Our failure, or that of our clients, to comply with education laws could adversely impact our operations. As a result, we work closely with our clients to maintain compliance with education laws.

Under the Higher Education Act of 1965, as amended, or the HEA, institutions offering postsecondary education must comply with certain laws and related regulations promulgated by the DOE in order to participate in the Title IV federal student financial assistance programs. All of our clients participate in the Title IV programs.

The HEA and the regulations promulgated thereunder are frequently revised, repealed or expanded. Congress historically has reauthorized and amended the HEA in regular intervals, approximately every five to seven years. The re-authorization process is currently under way.

The re-authorization of the HEA could alter the regulatory landscape of the higher education industry, and thereby impact the manner in which we conduct business and serve our clients. In addition, the DOE is independently conducting an ongoing series of rulemakings intended to assure the integrity of the Title IV programs. The DOE also frequently issues formal and informal guidance instructing institutions of higher education and other covered entities how to comply with various federal laws and regulations. DOE guidance is subject to frequent change and may impact our business model.

Although we are not considered an institution of higher education and we do not directly participate in Title IV programs, we are required to comply with certain regulations promulgated by the DOE as a result of our role as a service provider to institutions that do participate in Title IV programs. These include, for example, regulations governing student privacy under Family Educational Rights and Privacy Act, or FERPA. The most material obligations stem from new rules and revisions to existing regulations promulgated by the DOE in 2010 as part of the so-called "program integrity" rules.

While the program integrity rules were targeted at for-profit institutions of higher education, most apply equally to traditional colleges and universities such as our clients, and they apply in particular to institutions contracting with outside vendors to provide services, particularly in connection with distance education. These rules include principally the incentive compensation rule, the misrepresentation rule, the written arrangements rules and state authorization requirements. The more significant program integrity rules applicable to us or our clients are discussed in further detail below.

The HEA provides that any institution that participates in the Title IV federal student financial assistance programs must agree with the DOE that the institution will not provide any commission, bonus or other incentive payment to any person or entity engaged in any student recruiting or admission activities.

As part of the program integrity rules, the DOE issued revised regulations regarding incentive compensation effective July 1, 2011. Under the revised regulations, each higher education institution agrees that it will not "provide any commission, bonus, or other incentive payment based in any part, directly or indirectly, upon success in securing enrollments or the award of financial aid, to any person or entity who is engaged in any student recruitment or admission activity, or in making decisions regarding the award of title IV, HEA program funds." Pursuant to this rule, we are prohibited from offering our covered employees, which are those involved with or responsible for recruiting or admissions activities, any bonus or incentive-based compensation based on the successful recruitment, admission or enrollment of students into a postsecondary institution.

In addition, the revised rule initially raised a question as to whether our company itself, as an entity, is prohibited from entering into tuition revenue-sharing arrangements with clients. On March 17, 2011, the DOE issued official agency guidance, known as a "Dear Colleague Letter," or the DCL, providing guidance on this point. The DCL states that "[t]he Department generally views payment based on the amount of tuition generated as an indirect payment of incentive compensation based on success in recruitment and therefore a prohibited basis upon which to measure the value of the services provided" and that "[t]his is true regardless of the manner in which the entity compensates its employees." But the DCL also provides an important exception to the ban on tuition revenue-sharing arrangements between institutions and third parties. According to the DCL, the DOE does not consider payment based on the amount of tuition generated by an institution to violate the incentive compensation ban if the payment compensates an "unaffiliated third party" that provides a set of "bundled services" that includes recruitment services, such as those we provide. Example 2-B in the DCL is described as a "possible business model" developed "with the statutory mandate in mind." Example 2-B describes the following as a possible business model:

The DCL guidance indicates that that an arrangement that complies with Example 2-B will be deemed to be in compliance with the incentive compensation provisions of the HEA and the DOE's regulations. Our business model and contractual arrangements with client institutions closely follow Example 2-B in the DCL. In addition, we assure that none of our "covered employees" is paid any bonus or other incentive compensation in violation of the rule.

Because the bundled services rule was promulgated in the form of agency guidance issued by the DOE in the form of a DCL and is not codified by statute or regulation, the rule could be altered or removed without prior notice, public comment period or other administrative procedural requirements that accompany formal agency rulemaking. Similarly, a court could invalidate the rule in an action involving our company or our clients, or in action that does not involve us at all. The revision, removal or invalidation of the bundled services rule by Congress, the DOE or a court could require us to change our business model.

The HEA prohibits an institution that participates in the Title IV programs from engaging in any "substantial misrepresentation" regarding three broad subject areas: (1) the nature of the school's education programs, (2) the school's financial charges and (3) the employability of the school's graduates. In 2010, as part of the program integrity rules, the DOE revised its regulations in order to significantly expand the scope of the misrepresentation rule. Although some of the DOE's most expansive amendments to the misrepresentation rule were overturned by the courts in 2012, most of the 2010 amendments survived and remain in effect.

Under the new rule, "misrepresentation" is defined as any false, erroneous or misleading statement, written, visual or oral. This includes even statements that "have the likelihood or tendency to deceive." Therefore, a statement need not be intentionally deceitful to qualify as a misrepresentation. "Substantial misrepresentation" is defined loosely as a misrepresentation on which the person to whom it was made could reasonably be expected to rely, or has reasonably relied, to that person's detriment.

The new regulation also expands the scope of the rule to cover statements made by any representative of an institution, including agents, employees and subcontractors, and statements made directly or indirectly to any third party, including state agencies, government officials or the public, and not just to students or prospective students.

Violations of the misrepresentation rule are subject to various sanctions by the DOE and violations may be used as a basis for legal action by third parties. Similar rules apply under state laws or are incorporated in institutional accreditation standards. As a result, we and our employees and subcontractors, as agents of our clients, must use a high degree of care to comply with the misrepresentation rule and are prohibited by contract from making any false, erroneous or misleading statements about our clients. To avoid an issue under the misrepresentation rule, we assure that all marketing materials are approved in advance by our clients before they are used by our employees and we carefully monitor our subcontractors.

Accrediting agencies primarily examine the academic quality of the instructional programs of an educational institution, and a grant of accreditation is typically viewed as confirmation that an institution or an institution's programs meet generally accepted academic standards. Accrediting agencies also review the administrative and financial operations of the institutions they accredit to ensure that each institution has the resources to perform its educational mission. The DOE also relies on accrediting agencies to determine whether institutions' educational programs qualify the institutions to participate in Title IV programs.

In addition to institutional accreditation, colleges and universities may require specialized programmatic accreditation for particular educational programs. Many states and professional associations require professional programs to be accredited, and require individuals to have graduated from accredited programs in order to sit for professional license exams. Programmatic accreditation, while not a sufficient basis for institutional Title IV Program certification by the DOE, assists graduates to practice or otherwise secure appropriate employment in their chosen field. Common fields of study subject to programmatic accreditation include teaching and nursing.

Although we are not an accredited institution and are not required to maintain accreditation, accrediting agencies are responsible for reviewing an accredited institution's third-party contracts with service providers like us and may require an institution to obtain approval from or to notify the accreditor in connection with such arrangements. One purpose of the notification and approval requirements is to verify that the accredited institution remains responsible for providing academic instruction leading to a credential and provides oversight of other activities undertaken by third parties like us that are within the scope of its accreditation. We work closely with our clients to assure that the standards of their respective accreditors are met and are not adversely impacted by us.

Accrediting agencies are also responsible for assuring that any "written arrangements" to outsource academic instruction meet accrediting standards and related regulations of the DOE. Our operations are generally not subject to such "written arrangements" rules because academic instruction is provided by our client institutions and not by us.

Each state has at least one licensing agency responsible for the oversight of educational institutions operating within its jurisdiction. Continued approval by such agencies is necessary for an institution to operate and grant degrees, diplomas or certificates in those states. Moreover, under the HEA, approval by such agencies is necessary to maintain eligibility to participate in Title IV programs. The level of regulatory oversight varies substantially from state to state.

We and our clients may be subject to regulation in each state in which we or they own facilities, provide distance education or recruit students. State laws establish standards for, among other things, student instruction, qualifications of faculty, location and nature of facilities, recruiting practices and financial policies. The need to comply with applicable state laws and regulations may limit or delay our ability to market programs or offer new degree programs of our clients.

State regulatory requirements for online education are inconsistent between states, change frequently and, in some instances, are outmoded. In addition, the interpretation of state authorization regulations is subject to substantial discretion by the state agency responsible for enforcing the regulations. Some states have enacted legislation or issued regulations that specifically address online educational programs, some of which may affect our operations.

As part of the program integrity rules, the DOE required, among other things, that an institution offering distance learning or online programs secure the approval of those states which require such approval and provide evidence of such approval to the DOE upon request. This regulation dramatically increased the importance of state authorization because failure to obtain it could result in an obligation to return federal funds received by an institution. The U.S. Court of Appeals for the District of Columbia struck down the regulations requiring proof of state approval for online education programs in 2012; however, the DOE is considering issuing new regulations regarding state authorization. The DOE rulemaking to consider these and other issues is currently inactive, but it is the policy of DOE to require proof of all necessary state approvals when an institution seeks to renew its authorization to participate in the Title IV programs.

We monitor state law developments closely and work closely with our clients to assist them with obtaining any required approvals.

Our activities on behalf of institutions are also subject to other federal and state laws. These regulations include, but are not limited to, consumer marketing and unfair trade practices laws and regulations, including those promulgated and enforced by the Federal Trade Commission, as well as federal and state data protection and privacy requirements.

As of December 31, 2015, we had 905 full-time employees and 99 part-time employees. None of our employees are represented by a labor union or covered by a collective bargaining agreement. We consider our relations with our employees to be good.

We currently lease approximately 87,000 square feet of space for our corporate headquarters in Landover, Maryland pursuant to a lease that expires in July 2018. On December 23, 2015, we entered into a new lease for our Maryland headquarters. The 11 year, nine month office building lease is for approximately 250,000 rentable square feet by the end of the lease term in Lanham, Maryland, and the initial term is expected to commence on December 1, 2016. We also lease an aggregate of approximately 89,000 square feet of space in New York, California, Colorado, North Carolina, Virginia and Hong Kong. We are currently evaluating options for additional space in New York and Colorado as needed to accommodate our growth, and we believe that we will be able to obtain such space on acceptable, commercially reasonable terms.

From time to time, we may become involved in legal proceedings arising in the ordinary course of our business. We are not presently a party to any material legal proceedings, nor are we a party to any legal proceedings that, if determined adversely to us, would individually or taken together have a material adverse effect on our business, operating results, financial condition or cash flows.

In addition to the other information set forth in this Annual Report on Form 10-K, you should carefully consider the factors discussed in the "Special Note Regarding Forward-Looking Statements" in this Annual Report on Form 10-K.

We have a limited operating history, which makes it difficult to predict our future financial and operating results, and we may not achieve our expected financial and operating results in the future.

We were incorporated in 2008 and launched our first client program in 2009. As a result of our limited operating history, our ability to forecast our future operating results, including revenue, cash flows and profitability, is limited and subject to a number of uncertainties. We have encountered and will encounter risks and uncertainties frequently experienced by growing companies in the technology industry. If our assumptions regarding these risks and uncertainties are incorrect or change due to factors impacting our targeted markets, or if we do not manage these risks successfully, our operating and financial results may differ materially from our expectations and our business may suffer.

We have incurred significant net losses since inception, and we expect our operating expenses to increase significantly in the foreseeable future, which may make it more difficult for us to achieve and maintain profitability.

We incurred net losses of $26.7 million, $29.0 million and $28.0 million during the years ended December 31, 2015, 2014 and 2013, respectively. We will need to generate and sustain increased revenue levels in future periods to become profitable, and, even if we do, we may not be able to maintain or increase our level of profitability. We anticipate that our operating expenses will increase substantially in the foreseeable future as we undertake increased technology and production efforts to support a growing number of client programs and increase our program marketing and sales efforts to drive the acquisition of potential students in these programs. In addition, as a public company, we will continue to incur significant accounting, legal and other expenses that we did not incur as a private company. These expenditures will make it harder for us to achieve and maintain profitability. Our efforts to grow our business may be more costly than we expect, and we may not be able to increase our revenue enough to offset our higher operating expenses. If we are forced to reduce our expenses, our growth strategy could be compromised. We may incur significant losses in the future for a number of reasons, including unforeseen expenses, difficulties, complications, delays and other unknown events. As a result, we can provide no assurance as to whether or when we will achieve profitability. If we are not able to achieve and maintain profitability, the value of our company and our common stock could decline significantly.

Our business depends heavily on the adoption by colleges and universities of online delivery of their programs. If we fail to attract new colleges and universities as clients, our revenue growth and profitability may suffer.

The success of our business depends in large part on our ability to enter into agreements with additional nonprofit colleges and universities for their offering of degree programs online. In particular, to engage new clients, we need to convince nonprofit colleges and universities, many of which have been educating students in generally the same types of on-campus programs for hundreds of years, to invest significant time and resources to adjust the manner in which they teach students for an online degree program. The delivery of degree-granting programs online at leading nonprofit colleges and universities is nascent, and many administrators and faculty members have expressed concern regarding the perceived loss of control over the education process that might result from offering content online, as well as skepticism regarding the ability of colleges and universities to provide high quality education online that maintains the standards they set for their on-campus programs. It may be difficult to overcome this resistance, and there can be no assurance that online programs of the kind we develop with our clients will ever achieve significant market acceptance.

Our financial performance depends heavily on our ability to acquire qualified potential students for our clients' programs, and our ability to do so may be affected by circumstances beyond our control.

Building awareness of our clients' programs is critical to our ability to acquire prospective students for our clients' programs and generate revenue. A substantial portion of our expenses is attributable to program marketing and sales efforts dedicated to attracting potential students to our clients' programs. Because we generate revenue based on a portion of the tuition and fees that our clients bill to the students enrolled in their programs, it is critical to our success that we identify prospective students who meet our clients' admissions criteria in a cost-effective manner, and that enrolled students remain active in our clients' programs.

The following factors, many of which are largely outside of our control, may prevent us from successfully driving and maintaining student enrollment in our clients' programs in a cost-effective manner or at all:

Disruption to or failures of the SaaS technology within our Platform could reduce client and student satisfaction with our clients' programs and could harm our reputation.

The performance and reliability of the SaaS technology within our Platform is critical to our operations, reputation and ability to attract new clients, as well as our student acquisition and retention efforts. Our clients rely on this technology to offer their programs online, and students access this technology on a frequent basis as an important part of their educational experience. Accordingly, any errors, defects, disruptions or other performance problems with the SaaS technology within our Platform could damage our or our clients' reputations, decrease student satisfaction and retention and impact our ability to attract new students and clients. If any of these problems occur, our clients may, following notice and our failure to cure, terminate their agreements with us, or make indemnification or other claims against us. In addition, sustained or recurring disruptions in the SaaS technology within our Platform could adversely affect our and our clients' compliance with applicable regulations and accrediting body standards.

Our market may be limited based on the types of nonprofit colleges and universities we target for online degree programs.

We primarily market our Platform to selective nonprofit colleges and universities, a market that is necessarily limited. Some of the contracts we enter into with our clients contain limitations on our ability to contract with other institutions to offer the same degree program, and maintaining good relations with our clients may mean that we may be less likely to approach certain institutions that they regard as their direct competitors to offer similar programs, even if we are allowed to do so under our contracts. Moreover, because of the long-term nature of our client contracts, and because of the relationships of trust we strive to build with our current clients, we generally will not be able or willing to terminate our existing client relationships to pursue a competitive program with another college or university, even if it may prove to be more profitable to us. Instead, we may continue with a program that does not generate expected levels of revenue to us, or one from which we may not be able to fully recover the program marketing and sales expenses we incur in attracting students to enroll in the program, if, for example, the client limits enrollment in the program. As a result, the nature of our contracts and our relationships with our clients could restrict the overall revenue potential of our business.

We have agreed to incur, and we may incur in the future, costs to terminate some or all of the exclusivity obligations in some of our client contracts.

Some of our client contracts limit our ability to enable competitive programs with other schools. We have determined that enabling some of these contractually prohibited competitive programs is

desirable within our business strategy. To eliminate some or all of the exclusivity obligations in certain clients' contracts with us, we have agreed with certain clients to do some or all of the following: make fixed and contingent cash payments over time, reduce our revenue share over time, and/or make minimum investments in marketing under certain conditions.

We may determine in the future that enabling additional contractually prohibited competitive programs is desirable, and we may therefore agree with additional clients to incur costs similar to those above to reduce or eliminate the exclusivity obligations contained in their contracts with us.

If the competitive programs we ultimately enable fail to reach scale or cannot be scaled at a reasonable cost, or if we need to incur contingent costs in connection with our offering of competitive programs, our ability to grow our business and achieve profitability would be impaired.

Our clients may disagree with our decision to offer competitive programs pursuant to the contracts we have with them.

Our contracts with our clients include terms addressing the parties' respective rights to offer competitive programs. For example, some of our contracts permit us to offer competitive programs with other schools whose potential students are not academically qualified or otherwise interested in the program we offer with that client. Some of our other contracts prohibit us from offering competitive programs with specific schools. In addition, any contract limitations on our ability to offer competitive programs are inapplicable if our client either refuses to scale the program to accommodate all students qualifying for admission into the program, or raises the program admissions standards above those described in the contract at the time it was executed. If we elect to offer competitive programs in reliance on these contractual provisions, our clients may disagree with our interpretation of those provisions or with our interpretation of the facts surrounding our decision to offer a competitive program. Any disagreement with our clients over our decision to offer competitive programs could result in claims for breach of contract and equitable relief, and could cause damage to our reputation and impair our ability to grow our business and achieve profitability.

Attracting new clients for the launch of new programs is complex and time-consuming. If we pursue unsuccessful client opportunities, we may forego more profitable opportunities and our operating results and growth would be harmed.

The process of identifying specific degree programs at the selective nonprofit colleges and universities that we believe will be a good fit for our Platform, and then negotiating contracts with potential clients, is complex and time-consuming. Because of the initial reluctance on the part of some nonprofit colleges and universities to embrace a new method of delivering their education services and the complicated approval process within universities, our sales process to attract and engage a new client can be lengthy. Depending on the particular college or university, we may face resistance from university administrators or faculty members during the process.

The sales cycle for a new degree program often spans one year or longer. In addition, our sales cycle can vary substantially from program to program because of a number of factors, including the client's approval processes or disagreements over the terms of our offerings. We spend substantial effort and management resources on our new program sales efforts without any assurance that our efforts will result in the launch of a new program. If we invest substantial resources pursuing unsuccessful program opportunities, we may forego other more profitable client relationships, which would harm our operating results and growth.

To launch a new program, we must incur significant expense in technology and content development, as well as program marketing and sales, to identify and attract prospective students, and it may be several years, if ever, before we generate revenue from a new program sufficient to recover our costs.

To launch a new program, we must integrate components of our Platform with the various student information and other operating systems our clients use to manage functions within their institutions. In addition, our content development staff must work closely with that client's faculty members to produce engaging online coursework and content, and we must commence student acquisition activities. This process of launching a new program is time-consuming and costly and, under our agreements with our clients, we are primarily responsible for the significant costs of this effort, even before we generate any revenue. Additionally, during the life of our client agreements, we are responsible for the costs associated with continued program marketing, maintaining the SaaS technology within our Platform and providing non-academic and other support for students enrolled in the program. We invest significant resources in these new programs from the beginning of our relationship with a client, and there is no guarantee that we will ever recoup these costs.

Because our client agreements provide that we receive a fixed percentage of the tuition that the clients receive from the students enrolled in their programs, we only begin to recover these costs once students are enrolled and our clients begin billing students for tuition and fees. The time that it takes for us to recover our investment in a new program depends on a variety of factors, primarily the level of our student acquisition costs and the rate of growth in student enrollment in the program. We estimate that, on average, it takes approximately four to five years after engagement with a client to fully recover our investment in that client's new program. Because of the lengthy period required to recoup our investment in a program, unexpected developments beyond our control could occur that result in the client ceasing or significantly curtailing a program before we are able to fully recoup our investment. As a result, we may ultimately be unable to recover the full investment that we make in a new program or achieve our expected level of profitability for the program.

If new programs do not scale efficiently and in the time frames we expect, our reputation and our revenue will suffer.

Our continued growth and profitability depends on our and our clients' ability to successfully scale newly launched programs. As we continue aggressively growing our business, we plan to continue to hire new employees at a rapid pace, particularly in our program marketing and sales team and our technology and content development teams. If we cannot adequately train these new employees, we may not be successful in acquiring potential students for our clients' programs, which would adversely impact our ability to generate revenue, and our clients and the students in their programs could lose confidence in the knowledge and capability of our employees. If we cannot quickly and efficiently scale our technology to handle growing student enrollment and new client programs, our clients' and their students' experiences with our Platform may suffer, which could damage our reputation among colleges and universities and their faculty and students.

In addition, if our clients cannot quickly develop the infrastructure and hire sufficient faculty and administrators to handle growing student enrollments, our clients' and their students' experiences with our Platform may suffer, which could damage our reputation among colleges and universities and their faculty and students.

Our ability to effectively manage any significant growth of new programs and increasing student enrollment will depend on a number of factors, including our ability to:

Establishing new client programs or expanding existing programs will require us to make investments in management and key staff, increase capital expenditures, incur additional marketing expenses and reallocate other resources. If student enrollment in our clients' programs does not increase, if we are unable to launch new programs in a cost-effective manner or if we are otherwise unable to manage new client programs effectively, our ability to grow our business and achieve profitability would be impaired, and the quality of our solutions and the satisfaction of our clients and their students could suffer.

Our financial performance depends heavily on student retention within our clients' programs, and factors influencing student retention may be out of our control.

Once a student is enrolled in a program, we and our client must retain the student over the life of the degree program to generate ongoing revenue. Our strategy involves offering high quality support to students enrolled in our clients' programs to support their retention. If we do not help students quickly resolve any educational, technological or logistical issues they encounter, otherwise provide effective ongoing support to students or deliver the type of high quality, engaging educational content that students expect, students may withdraw from the program, which would negatively impact our revenue.

In addition, student retention could be compromised by the following factors, many of which are largely outside of our control:

Any of these factors could significantly reduce the revenue that we generate from a program, which would negatively impact our return on investment for the particular program, and could compromise our ability to grow our business and achieve profitability.

We currently have, and for the foreseeable future expect to continue to have, a small number of programs, and therefore we expect the loss, or material underperformance, of any one program could hurt our future financial performance.

We currently operate 18 programs that have launched and have contracts to launch an additional 11 programs in the future. As a result of this small number of programs, the material underperformance of any one program, including the failure to increase student enrollment in a program, or any decline in the ranking of one of our clients' programs or other impairment of their reputation, could have a disproportionate effect on our business. Additionally, because we rely on our own reputation for delivering high quality online programs and recommendations from existing clients to attract potential new clients, the loss of any single client program, or the failure of any client to renew its agreement with us upon expiration, could impair our ability to pursue our growth strategy and ultimately to become profitable.

A significant portion of our revenue is currently attributable to programs with the University of Southern California. The loss of, or a decline in enrollment in, either of these programs could significantly reduce our revenue.

Our two longest running programs, launched in 2009 and 2010, are with the University of Southern California, or USC. For the years ended December 31, 2015 and 2014, 43% and 55%, respectively, of our revenue was derived from these two programs. We expect that USC will continue to account for a large portion of our revenue until our other client programs become more mature and achieve significantly higher enrollment levels. Any decline in USC's reputation, any increase in USC's tuition, or any changes in USC's policies could adversely affect the number of students that enroll in these two programs. Further, the faculty or administrators of these two schools could become resistant to offering their online programs through our Platform, making it more difficult for us to attract and retain students. These graduate schools are not required to expand student enrollment in their online programs and, upon the expiration of their contracts, they are not required to continue using us as the provider of their online programs. If either of these programs were to materially underperform for any reason or to terminate or not renew their relationships with us, it would significantly reduce our revenue.

If our security measures are breached or fail and result in unauthorized disclosure of data, we could lose clients, fail to attract new clients and be exposed to protracted and costly litigation.

Maintaining security of the SaaS technology within our Platform is of critical importance for our clients because it stores and transmits proprietary and confidential university and student information, which may include sensitive personally identifiable information that is subject to stringent legal and regulatory obligations. As a technology company, we face an increasing number of threats to the SaaS technology within our Platform, including unauthorized activity and access, system viruses, worms, malicious code and organized cyberattacks, any of which could breach our security and disrupt our solutions and our clients' programs. If our security measures are breached or fail as a result of third-party action, employee error, malfeasance or otherwise, we could be subject to liability or our business could be interrupted, potentially over an extended period of time. Any or all of these issues could harm

our reputation, adversely affect our ability to attract new clients and students, cause existing clients to scale back their programs or elect not to renew their agreements, cause prospective students not to enroll or students to stay enrolled in our clients' programs, or subject us to third-party lawsuits, regulatory fines or other action or liability. Further, any reputational damage resulting from breach of our security measures could create distrust of our company by prospective clients or students. In addition, our insurance coverage may not be adequate to cover losses associated with such events, and in any case, such insurance may not cover all of the types of costs, expenses and losses we could incur to respond to and remediate a security breach. As a result, we may be required to expend significant additional resources to protect against the threat of these disruptions and security breaches or to alleviate problems caused by such disruptions or breaches.

We have grown rapidly and expect to continue to invest in our growth for the foreseeable future. If we fail to manage this growth effectively, the success of our business model will be compromised.

We have experienced rapid growth in a relatively short period of time, which has placed, and will continue to place, a significant strain on our administrative and operational infrastructure, facilities and other resources. Our ability to manage our operations and growth will require us to continue to expand our program marketing and sales personnel, technology team, finance and administration teams, as well as our facilities and infrastructure. We will also be required to refine our operational, financial and management controls and reporting systems and procedures. If we fail to manage this expansion of our business efficiently, our costs and expenses may increase more than we plan and we may not successfully expand our client base, enhance our Platform, develop new programs with new and existing clients, attract a sufficient number of qualified students in a cost-effective manner, satisfy the requirements of our existing clients, respond to competitive challenges or otherwise execute our business plan. Although our business has experienced significant growth in the past, we cannot provide any assurance that our revenue will continue to grow at the same rate in the future.

Our ability to manage any significant growth of our business effectively will depend on a number of factors, including our ability to:

These activities will require significant capital expenditures and allocation of valuable management and employee resources, and our growth will continue to place significant demands on our management and our operational and financial infrastructure.

There are no guarantees that we will be able to effectively manage any future growth in an efficient, cost-effective or timely manner, or at all. In particular, any failure to implement systems enhancements and improvements successfully will likely negatively impact our ability to manage our expected growth, ensure uninterrupted operation of key business systems and comply with the rules and regulations that are applicable to public reporting companies. Moreover, if we do not manage the growth of our business and operations effectively, the quality of our solutions could suffer, which could negatively affect our reputation, results of operations and overall business.

We face competition from established and emerging companies, which could divert clients to our competitors, result in pricing pressure and significantly reduce our revenue.

We expect existing competitors and new entrants to the online learning market to revise and improve their business models constantly in response to challenges from competing businesses, including ours. If these or other market participants introduce new or improved delivery of online education and technology-enabled services that we cannot match or exceed in a timely or cost-effective manner, our ability to grow our revenue and achieve profitability could be compromised.

Our primary competitors include EmbanetCompass and Deltak, which were acquired in 2012 by Pearson and John Wiley & Sons, respectively, both of which are large education and publishing companies. There are also several private companies, including HotChalk and Everspring Partners, providing some or all of the services we provide, and these companies may choose to pursue some of the institutions we target. In addition, colleges and universities may choose to continue using or to develop their own online learning solutions in-house, rather than pay for our solutions.

Some of our competitors and potential competitors have significantly greater resources than we do. Increased competition may result in pricing pressure for us in terms of the percentage of tuition and fees we are able to negotiate to receive from a client. The competitive landscape may also result in longer and more complex sales cycles with a prospective client or a decrease in our market share among selective nonprofit colleges and universities seeking to offer online degree programs, 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 client opportunities or force us to offer our solutions on less favorable economic terms, including

We may not be able to compete successfully against current and future competitors. In addition, competition may intensify as our competitors raise additional capital and as established companies in other market segments or geographic markets expand into our market segments or geographic markets. If we cannot compete successfully against our competitors, our ability to grow our business and achieve profitability could be impaired.

If for-profit postsecondary institutions, which offer online education alternatives different from ours, perform poorly, it could tarnish the reputation of online education as a whole, which could impair our ability to grow our business.

For-profit postsecondary institutions, many of which provide course offerings predominantly online, are under intense regulatory and other scrutiny, which has led to media attention that has sometimes portrayed that sector in an unflattering light. Some for-profit online school operators have been subject to governmental investigations alleging the misuse of public funds, financial irregularities, and failure to achieve positive outcomes for students, including the inability to obtain employment in their fields.

These allegations have attracted significant adverse media coverage and have prompted legislative hearings and regulatory responses. These investigations have focused on specific companies and individuals, and even entire industries in the case of recruiting practices by for-profit higher education companies. Even though we do not market our solutions to these institutions, this negative media attention may nevertheless add to skepticism about online higher education generally, including our solutions.

The precise impact of these negative public perceptions on our current and future business is difficult to discern. If these few situations, or any additional misconduct, cause all online learning programs to be viewed by the public or policymakers unfavorably, we may find it difficult to enter into or renew contracts with selective colleges and universities or attract additional students for our clients' programs. In addition, this perception could serve as the impetus for more restrictive legislation, which could limit our future business opportunities. Moreover, allegations of abuse of federal financial aid funds and other statutory violations against for-profit higher education companies could negatively impact our opportunity to succeed due to increased regulation and decreased demand. Any of these factors could negatively impact our ability to increase our client base and grow our clients' programs, which would make it difficult to continue to grow our business.

If we do not retain our senior management team and key employees, we may not be able to sustain our growth or achieve our business objectives.

Our future success is substantially dependent on the continued service of our senior management team. Because of our small number of clients and the significant nature of each new client relationship, our senior management team is heavily involved in the client identification and sales process, and their expertise is critical in navigating the complex approval processes of large nonprofit colleges and universities. We do not maintain key-person insurance on any of our employees, including our senior management team. The loss of the services of any individual on our senior management team, or failure to find a suitable successor, could make it more difficult to successfully operate our business and achieve our business goals.

Our future success also depends heavily on the retention of our program marketing and sales, technology and content development and support teams to continue to attract and retain qualified students in our clients' programs, thereby generating revenue for us. In particular, our highly-skilled technology and content development employees provide the technical expertise underlying our bundled technology-enabled services that support our clients' programs and the students enrolled in these programs. Competition for these employees is intense. As a result, we may be unable to attract or retain these key personnel that are critical to our success, resulting in harm to our relationships with clients, loss of expertise or know-how and unanticipated recruitment and training costs.

If certain awards under our stock plans are deemed to have not expired in accordance with their terms, we could be liable to certain award holders for substantial amounts.

Each of our 2008 Stock Incentive Plan and 2014 Equity Incentive Plan provide that vested stock option awards issued under those plans expire upon the occurrence of certain events. For example, each plan provides, among other things, that stock options expire and are no longer exercisable upon the earlier to occur of 90 days after a separation of service, or, depending on the specific circumstances of the grantee, 5 or 10 years after the grant date. Award recipients under these plans have failed and may fail in the future to exercise their stock options within the prescribed time frame or may otherwise fail to comply with terms and conditions of the plans or the corresponding award agreements resulting in the expiration of those option awards. Award recipients with expired option awards have disagreed and may disagree in the future with our or our Compensation Committee's interpretation of the provisions in the plans or the award agreements. Any disagreement between us and holders of expired option awards regarding the expiration of those awards under the terms of the plan or award

agreements could result in claims for breach of contract and other claims that could subject us to costly litigation that could require management time and involvement, regardless of whether such claims have merit.

We may need additional capital in the future to pursue our business objectives. Additional capital may not be available on favorable terms, or at all, which could compromise our ability to grow our business.

We believe that our existing cash balances and the available borrowing capacity under our revolving line of credit, will be sufficient to meet our minimum anticipated cash requirements for at least the next twelve months. We may, however, need to raise additional funds to respond to business challenges or opportunities, accelerate our growth, develop new programs or enhance our Platform. If we seek to raise additional capital, it may not be available on favorable terms or may not be available at all. In addition, if we have borrowings outstanding under our credit facility, we may be restricted from using the net proceeds of financing transactions for our operating objectives. Lack of sufficient capital resources could significantly limit our ability to manage our business and to take advantage of business and strategic opportunities. Any additional capital raised through the sale of equity or debt securities with an equity component would dilute our stock ownership. If adequate additional funds are not available if and when needed, we may be required to delay, reduce the scope of, or eliminate material parts of our business strategy.

Our employees located outside of the United States and the international residents applying to and enrolling in our clients' programs expose us to international risks.

Operating in international markets requires significant resources and management attention and subjects us to regulatory, economic and political risks that are different from those in the United States. We have a branch office in Hong Kong for program marketing and student support. Because we have employees in Hong Kong, we are subject to Hong Kong's compensation and benefits regulations, which differ from compensation and benefits regulations in the United States. Further, acquiring international applicants and enrollments for our clients requires us to comply with international data privacy regulations of the countries from which our clients' programs draw applicants and enrollments. Failure to comply with international regulations or to adequately adapt to international markets could harm our ability to successfully operate our business and pursue our business goals.

Future programs with colleges and universities outside the United States could expose us to risks inherent in international operations.

One element of our growth strategy is to expand our international operations and establish a worldwide client base. We cannot assure you that our expansion efforts into international markets will be successful. Our experience with attracting clients in the United States may not be relevant to our ability to attract clients in other emerging markets. In addition, we would face risks in doing business internationally that could constrain our operations and compromise our growth prospects, including:

Future agreements with international clients may provide for payments to us to be denominated in local currencies. In such case, fluctuations in the value of the U.S. dollar and foreign currencies could impact our operating results when translated into U.S. dollars, and we may not be able to engage in currency hedging activities to effectively limit the risk of exchange rate fluctuations.

We might not be able to utilize a portion of our net operating loss carryforwards, which could adversely affect our profitability.

As of December 31, 2015, we had federal net operating loss carryforwards due to prior period losses, which, if not utilized, will begin to expire in 2029. Our gross state net operating loss carryforwards are equal to or less than the federal net operating loss carryforwards and expire over various periods based on individual state tax laws. 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, if a corporation undergoes an "ownership change," which is generally defined as a greater than 50% change, by value, in its equity ownership over a three-year period, the corporation's ability to use its pre-change net operating loss carryforwards and other pre-change tax attributes to offset its post-change income may be limited. Similar rules may apply under state tax laws. We have completed an analysis of the stock ownership changes through September 30, 2015, and determined that there has not been an ownership change prior to that date. However, we have not completed an analysis to determine what, if any, impact any ownership change after September 30, 2015, has had on our ability to utilize our net operating loss carryforwards. In addition, we may experience ownership changes in the future as a result of subsequent shifts in our stock ownership. If we determine that an ownership change has occurred and our ability to use our historical net operating loss carryforwards is materially limited, it would harm our future operating results by increasing our future tax obligations.

We engage some individuals classified as independent contractors, not employees, and if federal or state law mandates that they be classified as employees, our business would be adversely impacted.

We engage independent contractors and are subject to the Internal Revenue Service regulations and applicable state law guidelines regarding independent contractor classification. These regulations and guidelines are subject to judicial and agency interpretation, and it could be determined that the independent contractor classification is inapplicable. Further, if legal standards for classification of independent contractors change, it may be necessary to modify our compensation structure for these personnel, including by paying additional compensation or reimbursing expenses. In addition, if our independent contractors are determined to have been misclassified as independent contractors, we would incur additional exposure under federal and state law, workers' compensation, unemployment benefits, labor, employment and tort laws, including for prior periods, as well as potential liability for

employee benefits and tax withholdings. Any of these outcomes could result in substantial costs to us, could significantly impair our financial condition and our ability to conduct our business as we choose, and could damage our reputation and our ability to attract and retain other personnel.

Our business model relies on client institutions complying with federal and state laws and regulations.

Higher education is heavily regulated. All of our clients participate in Title IV federal student financial assistance programs under the Higher Education Act of 1965, as amended, or HEA, and are subject to extensive regulation by the U.S. Department of Education, or DOE, as well as various state agencies, licensing boards and accrediting commissions. To participate in the Title IV programs, an institution must receive and maintain authorization by the appropriate state education agencies, be accredited by an accrediting commission recognized by the DOE, and be certified by the DOE as an eligible institution. If any of our clients were to be found to be in non-compliance with any of these laws, regulations, standards or policies, the client could lose some or all access to Title IV program funds, lose the ability to offer certain programs or lose their ability to operate in certain states, any of which could cause our revenue from that client's program to decline.

The regulations, standards and policies of our clients' regulators change frequently and are often subject to interpretation. Changes in, or new interpretations of, applicable laws, regulations or standards could compromise our clients' accreditation, authorization to operate in various states, permissible activities or use of federal funds under Title IV programs. We cannot predict with certainty how the requirements applied by our clients' regulators will be interpreted, or whether our clients will be able to comply with these requirements in the future.

Our activities are subject to federal and state laws and regulations and other requirements.

Although we are not an institution of higher education, we are required to comply with certain education laws and regulations as a result of our role as a service provider to higher education institutions, either directly or indirectly through our contractual arrangements with clients. Failure to comply with these laws and regulations could result in breach of contract and indemnification claims and could cause damage to our reputation and impair our ability to grow our business and achieve profitability.

Activities of the U.S. Congress could result in adverse legislation or regulatory action.

The process of re-authorization of the HEA began in 2014 and is ongoing. Congressional hearings were held in 2013-2015 and will continue to be scheduled by the U.S. Senate Committee on Health, Education, Labor and Pensions, the U.S. House of Representatives Committee on Education and the Workforce and other Congressional committees regarding various aspects of the education industry, including accreditation matters, student debt, student recruiting, cost of tuition, distance learning, competency-based learning, student success and outcomes and other matters.

The increased scrutiny and results-based accountability initiatives in the education sector, as well as ongoing policy differences in Congress regarding spending levels, could lead to significant changes in connection with the reauthorization of the HEA or otherwise. These changes may place additional regulatory burdens on postsecondary schools generally, and specific initiatives may be targeted at or have an impact upon companies like us that serve higher education. The adoption of any laws or regulations that limit our ability to provide our bundled services to our clients could compromise our ability to drive revenue through their programs or make our solutions less attractive to them. Congress could also enact laws or regulations that require us to modify our practices in ways that could increase our costs.

In addition, regulatory activities and initiatives of the DOE may have similar consequences for our business even in the absence of Congressional action. The DOE is conducting an ongoing series of rulemakings intended to assure the integrity of the Title IV programs. No assurances can be given as to how any new rules may affect our business.

Our business model, which depends on our ability to receive a share of tuition revenue as payment from our clients, has been validated by a DOE "dear colleague" letter, but such validation is not codified by statute or regulation and may be subject to change.

Each institution that participates in Title IV programs agrees it will not "provide any commission, bonus, or other incentive payment based in any part, directly or indirectly, upon success in securing enrollments or the award of financial aid, to any person or entity who is engaged in any student recruitment or admission activity, or in making decisions regarding the award of title IV, HEA program funds." All of our clients participate in Title IV Programs.

Although this rule, referred to as the incentive compensation rule, generally prohibits entities or individuals from receiving incentive-based compensation payments for the successful recruitment, admission or enrollment of students, the DOE provided guidance in 2011 permitting tuition revenue-sharing arrangements known as the "bundled services rule." Our current business model relies heavily on the bundled services rule to enter into tuition revenue-sharing agreements with client colleges and universities.

Because the bundled services rule was promulgated in the form of agency guidance issued by the DOE in the form of a "dear colleague" letter, or DCL, and is not codified by statute or regulation, there is risk that the rule could be altered or removed without prior notice, public comment period or other administrative procedural requirements that accompany formal agency rulemaking. Although the DCL represents the current policy of the DOE, the bundled services rule could be reviewed, altered or vacated in the future. In addition, the legal weight the DCL would carry in litigation over the propriety of any specific compensation arrangements under the HEA or the incentive compensation rule is uncertain. We can offer no assurances as to how the DCL would be interpreted by a court. The revision, removal or invalidation of the bundled services rule by Congress, the DOE or a court, whether in an action involving our company or our clients, or in action that does not involve us, could require us to change our business model and renegotiate the terms of our client contracts and could compromise our ability to generate revenue.

If we or our subcontractors or agents violate the incentive compensation rule, we could be liable to our clients for substantial fines, sanctions or other liabilities.

Even though the DCL clarifies that tuition revenue-sharing arrangements with our clients are permissible, we are still subject to other provisions of the incentive compensation rule that prohibit us from offering to our employees who are involved with or responsible for recruiting or admissions activities any bonus or incentive-based compensation based on the successful identification, admission or enrollment of students into any institution. If we or our subcontractors or agents violate the incentive compensation rule, we could be liable to our clients for substantial fines, sanctions or other liabilities, including liabilities related to "whistleblower" claims under the federal False Claims Act. Any such claims, even if without merit, could require us to incur significant costs to defend the claim, distract management's attention and damage our reputation.

If we or our subcontractors or agents violate the misrepresentation rule, or similar federal and state regulatory requirements, we could face fines, sanctions and other liabilities.

We are required to comply with other regulations promulgated by the DOE that affect our student acquisition activities, including the misrepresentation rule. The misrepresentation rule is broad in scope

and applies to statements our employees, subcontractors or agents may make about the nature of a client's program, a client's financial charges or the employability of a client's program graduates. A violation of this rule or other federal or state regulations applicable to our marketing activities by an employee, subcontractor or agent performing services for clients could hurt our reputation, result in the termination of client contracts, require us to pay fines or other monetary penalties or require us to pay the costs associated with indemnifying a client from private claims or government investigations.

If our clients fail to maintain their state authorizations, or we or our clients violate other state laws and regulations, students in their programs could be adversely affected and we could lose our ability to operate in that state and provide services to our clients.

Our clients must be authorized in certain states to offer online programs, engage in recruiting and operate externships, internships, clinical training or other forms of field experience, depending on state law. The loss of or failure to obtain state authorization would, among other things, limit a client's ability to enroll students in that state, render the client and its students ineligible to participate in Title IV programs in that state, diminish the attractiveness of the client's program and ultimately compromise our ability to generate revenue and become profitable.

In addition, if we or any of our clients fail to comply with any state agency's rules, regulations or standards beyond authorizations, the state agency could limit the ability of the client to offer programs in that state or limit our ability to perform our contractual obligations to our client in that state.

If our clients fail to maintain institutional or programmatic accreditation for their programs, our revenue could be materially affected.

The loss or suspension of a client's accreditation or other adverse action by the client's institutional or programmatic accreditor would render the institution or its program ineligible to participate in Title IV programs, could prevent the client from offering certain educational programs and could make it impossible for the graduates of the client's program to practice the profession for which they trained. If any of these results occurs, it could hurt our ability to generate revenue from that program.

Our future growth could be impaired if our clients fail to obtain timely approval from applicable regulatory agencies to offer new programs, make substantive changes to existing programs or expand their programs into or within certain states.

Our clients are required to obtain the appropriate approvals from the DOE and applicable state and accrediting regulatory agencies for new programs or locations, which may be conditioned, delayed or denied in a manner that could impair our strategic plans and future growth. Education regulatory agencies are generally experiencing significant increases in the volume of requests for approvals as a result of new distance learning programs and adjustments to the significant volume of new regulations over the last several years. Regulatory capacity constraints have resulted in delays to various approvals our client institutions are requesting, and such delays could in turn delay the timing of our ability to generate revenue from our clients' programs.

If more state agencies require specialized approval of our clients' programs, our operating costs could rise significantly, approval times could lag or we could be prohibited from operating in certain states.

In addition to state licensing agencies, our clients may be required to obtain approval from professional licensing boards in certain states to offer specialized programs in specific fields of study. Currently, relatively few states require institutions to obtain professional board approval for their professional programs when offered online. However, more states could pass laws requiring professional programs offered by our clients, such as graduate programs in teaching or nursing, to

obtain approval from state professional boards. If a significant number of states pass additional laws requiring schools to obtain professional board approval, the cost of obtaining all necessary state approvals could dramatically increase, which could make our solutions less attractive to clients, and our clients could be barred from operating in some states entirely.

If the personally identifiable information we collect from students is unlawfully acquired, accessed or obtained, we could be required to pay substantial fines and bear the cost of investigating the data breach and providing notice to individuals whose personally identifiable information was unlawfully accessed.

In providing services to our clients, we collect personally identifiable information from students and prospective students, such as names, social security numbers and birth dates. In the event that the personally identifiable information is unlawfully accessed or acquired, the majority of states have laws that require institutions to investigate and immediately disclose the data breach to students, usually in writing. Under the terms of our contracts with our clients, we would be responsible for the costs of investigating and disclosing these data breaches to the clients' students. In addition to costs associated with investigating and fully disclosing a data breach in such instances, we could be subject to substantial monetary fines or private claims by affected parties and our reputation would likely be harmed.

We are required to comply with The Family Educational Rights and Privacy Act, or FERPA, and failure to do so could harm our reputation and negatively affect our business.

FERPA generally prohibits an institution of higher education from disclosing personally identifiable information from a student's education records without the student's consent. Our clients and their students disclose to us certain information that originates from or comprises a student education record under FERPA. As an entity that provides services to institutions, we are indirectly subject to FERPA, and we may not transfer or otherwise disclose any personally identifiable information from a student record to another party other than in a manner permitted under the statute. If we violate FERPA, it could result in a material breach of contract with one or more of our clients and could harm our reputation. Further, in the event that we disclose student information in violation of FERPA, the DOE could require a client to suspend our access to their student information for at least five years.

We operate in an industry with extensive intellectual property litigation. Claims of infringement against us may hurt our business.

Our success depends, in part, upon our ability to avoid infringing intellectual property rights owned by others and being able to resolve claims of intellectual property infringement without major financial expenditures or adverse consequences. The technology and software fields generally are characterized by extensive intellectual property litigation and many companies that own, or claim to own, intellectual property have aggressively asserted their rights. From time to time, we may be subject to legal proceedings and claims relating to the intellectual property rights of others, and we expect that third parties will assert intellectual property claims against us, particularly as we expand the complexity and scope of our business. In addition, our client agreements require us to indemnify our clients against claims that our solutions infringe the intellectual property rights of third parties.

Future litigation may be necessary to defend ourselves or our clients from intellectual property infringement claims or to establish our proprietary rights. Some of our competitors have substantially greater resources than we do and would be able to sustain the costs of complex intellectual property litigation to a greater degree and for longer periods of time than we could. In addition, patent holding companies that focus solely on extracting royalties and settlements by enforcing patent rights may target

us. Regardless of whether claims that we are infringing patents or other intellectual property rights have any merit, these claims are time-consuming and costly to evaluate and defend and could:

In addition to liability for monetary damages against us, which may include attorneys' fees, treble damages in the event of a finding of willful infringement, or, in some circumstances, damages against our clients, we may be prohibited from developing, commercializing or continuing to provide some or all of our bundled technology-enabled solutions unless we obtain licenses from, and pay royalties to, the holders of the patents or other intellectual property rights, which may not be available on commercially favorable terms, or at all.

We may incur liability for the unauthorized duplication, distribution or other use of materials posted online.

In some instances, university personnel or students, or our employees or independent contractors, may post to Online Campus various articles or other third-party content for use in class discussions or within asynchronous lessons. The laws governing the fair use of these third-party materials are imprecise and adjudicated on a case-by-case basis, which makes it challenging to adopt and implement appropriately balanced institutional policies governing these practices. As a result, we could incur liability to third parties for the unauthorized duplication, distribution or other use of this material. Any such claims could subject us to costly litigation and impose a significant strain on our financial resources and management personnel regardless of whether the claims have merit. Our various liability insurance coverages may not cover potential claims of this type adequately or at all, and we may be required to alter or cease our uses of such material, which may include changing or removing content from courses or altering the functionality of Online Campus, or to pay monetary damages.

Our failure to protect our intellectual property rights could diminish the value of our solutions, weaken our competitive position and reduce our revenue.

We regard the protection of our intellectual property, which includes trade secrets, copyrights, trademarks, domain names and patent applications, as critical to our success. We protect our proprietary information from unauthorized use and disclosure by entering into confidentiality agreements with any party who may come in contact with such information. We also seek to ensure that we own intellectual property created for us by signing agreements with employees, independent contractors, consultants, companies and any other third party who may create intellectual property for us that assign their copyright and patent rights to us. However, these arrangements and the other steps we have taken to protect our intellectual property may not prevent the misappropriation of our proprietary information or deter independent development of similar technologies by others.

We have also begun seeking patent protection for our processes, including two patent applications pending in the United States. These pending applications are directed to computer-implemented processes that facilitate asynchronous student responses to teacher questions. We cannot predict whether these pending patent applications will result in issued patents that will effectively protect our intellectual property. Even if a patent issues, the patent may be circumvented or its validity may be challenged in proceedings before the U.S. Patent and Trademark Office. In addition, we cannot assure you that every significant feature of our products and services will be protected by any patent or patent application.

We also pursue the registration of our domain names, trademarks and service marks in the United States and in jurisdictions outside the United States. However, third parties may knowingly or unknowingly infringe on our trademark or service mark rights, third parties may challenge our trademark or service mark rights, and pending or future trademark or service mark applications may not be approved. In addition, effective trademark protection may not be available in every country in which we operate or intend to operate. In any or all cases, we may be required to expend significant time and expense to prevent infringement or enforce our rights.

Monitoring unauthorized use of our intellectual property is difficult and costly. Our efforts to protect our proprietary rights may not be adequate to prevent misappropriation of our intellectual property. Further, we may not be able to detect unauthorized use of, or take appropriate steps to enforce, our intellectual property rights. Our competitors may also independently develop similar technology. In addition, the laws of many countries may not protect our proprietary rights to as great an extent as do the laws of the United States. Further, the laws in the United States and elsewhere change rapidly, and any future changes could adversely affect us and our intellectual property rights. Our failure to meaningfully protect our intellectual property could result in competitors offering services that incorporate our most technologically advanced features, which could seriously reduce demand for our solutions. In addition, we may in the future need to initiate litigation such as infringement or administrative proceedings, to protect our intellectual property rights. Litigation, whether we are a plaintiff or a defendant, can be expensive, time-consuming and may divert the efforts of our technical staff and managerial personnel, whether or not such litigation results in a determination that is unfavorable to us. In addition, litigation is inherently uncertain, and thus we may not be able to stop our competitors from infringing upon our intellectual property rights.

Our use of "open source" software could negatively affect our ability to offer our solutions and subject us to possible litigation.

A substantial portion of our cloud-based SaaS technology within our Platform incorporates so-called "open source" software, and we may incorporate additional open source software in the future. Open source software is generally freely accessible, usable and modifiable. Certain open source licenses may, in certain circumstances, require us to offer our solutions that incorporate the open source software for no cost, that we make available source code for modifications or derivative works we create based upon, incorporating or using the open source software and that we license such modifications or derivative works under the terms of the particular open source license. If an author or other third party that distributes open source software we use were to allege that we had not complied with the conditions of one or more of these licenses, we could be required to incur significant legal expenses defending against such allegations and could be subject to significant damages, including being enjoined from the offering of our solutions that contained the open source software and being required to comply with the foregoing conditions, which could disrupt our ability to offer the affected solutions. We could also be subject to suits by parties claiming ownership of what we believe to be open source software. Litigation could be costly for us to defend, have a negative effect on our operating results and financial condition and require us to devote additional research and development resources to change our products.

Individuals that appear in content hosted on Online Campus may claim violation of their rights.

Faculty and students that appear in video segments hosted on Online Campus may claim that proper assignments, licenses, consents and releases were not obtained for use of their likenesses, images or other contributed content. Our clients are contractually required to ensure that proper assignments, licenses, consents and releases are obtained for their course material, but we cannot know with certainty that they have obtained all necessary rights. Moreover, the laws governing rights of publicity and privacy, and the laws governing faculty ownership of course content, are imprecise and

adjudicated on a case-by-case basis, such that the enforcement of agreements to transfer the necessary rights is unclear. As a result, we could incur liability to third parties for the unauthorized duplication, display, distribution or other use of this material. Any such claims could subject us to costly litigation and impose a significant strain on our financial resources and management personnel regardless of whether the claims have merit. Our various liability insurance coverages may not cover potential claims of this type adequately or at all, and we may be required to alter or cease our use of such material, which may include changing or removing content from courses, or to pay monetary damages. Moreover, claims by faculty and students could damage our reputation, regardless of whether such claims have merit.

Risks Related to Ownership of Our Common Stock and Our Status as a Public Company

Our quarterly operating results have fluctuated in the past and may do so in the future, which could cause our stock price to decline.

Our quarterly operating results have historically fluctuated due to seasonality and changes in our business, and our future operating results may vary significantly from quarter to quarter due to a variety of factors, many of which are beyond our control. You should not rely on period-to-period comparisons of our operating results as an indication of our future performance. Factors that may cause fluctuations in our quarterly operating results include, but are not limited to, the following:

Our operating results may fall below the expectations of market analysts and investors in some future periods, which could cause the market price of our common stock to decline substantially.

The trading price of the shares of our common stock may be volatile, and purchasers of our common stock could incur substantial losses.

Our stock price may be volatile. The stock market in general and the market for technology companies in particular have experienced extreme volatility that has often been unrelated to the operating performance of particular companies. As a result of this volatility, investors may not be able to sell their common stock at or above the price paid for the shares. The market price for our common stock may be influenced by many factors, including:

In addition, in the past, stockholders have initiated class action lawsuits against technology companies following periods of volatility in the market prices of these companies' stock. Such litigation, if instituted against us, could cause us to incur substantial costs and divert management's attention and resources from our business.

A significant portion of our total outstanding shares may be sold into the market in the near future. This could cause the market price of our common stock to drop significantly, even if our business is doing well.

Sales of a substantial number of shares of our common stock in the public market could occur at any time. If our stockholders sell, or the market perceives that our stockholders intend to sell, substantial amounts of our common stock in the public market, the market price of our common stock could decline significantly.

The holders of a significant portion of shares of our common stock, or their transferees, have rights, subject to some conditions, to require us to file one or more registration statements covering their shares or to include their shares in registration statements that we may file for ourselves or other stockholders. If we were to register the resale of these shares, they could be freely sold in the public market. If these additional shares are sold, or if it is perceived that they will be sold, in the public market, the trading price of our common stock could decline.

If equity research analysts do not continue to publish research or reports, or publish unfavorable research or reports, about us, our business or our market, our stock price and trading volume could decline.

The trading market for our common stock will be influenced by the research and reports that equity research analysts publish about us and our business. Equity research analysts may elect not to initiate or to continue to provide research coverage of our common stock, and such lack of research coverage may adversely affect the market price of our common stock. Even if we do have equity research analyst coverage, we will not have any control over the analysts or the content and opinions included in their reports. The price of our stock could decline if one or more equity research analysts downgrade our stock or issue other unfavorable commentary or research. If one or more equity research analysts ceases coverage of our company or fails to publish reports on us regularly, demand for our stock could decrease, which in turn could cause our stock price or trading volume to decline.

Provisions in our corporate charter documents and under Delaware law may prevent or frustrate attempts by our stockholders to change our management and hinder efforts to acquire a controlling interest in us, and the market price of our common stock may be lower as a result.

Provisions in our amended and restated certificate of incorporation and amended and restated bylaws may make it difficult for a third party to acquire, or attempt to acquire, control of our company, even if a change in control is considered favorable by you and other stockholders. For example, our board of directors has the authority to issue up to 5,000,000 shares of preferred stock. The board of directors can fix the price, rights, preferences, privileges, and restrictions of the preferred stock without any further vote or action by our stockholders. An issuance of shares of preferred stock may result in the loss of voting control to other stockholders, which could delay or prevent a change in control transaction. As a result, the market price of our common stock and the voting and other rights of our stockholders may be adversely affected.

Our charter documents also contain other provisions that could have an anti-takeover effect, including:

In addition, we are subject to the anti-takeover provisions of Section 203 of the Delaware General Corporation Law, which regulates corporate acquisitions by prohibiting Delaware corporations from engaging in specified business combinations with particular stockholders of those companies. These provisions could discourage potential acquisition proposals and could delay or prevent a change in control transaction. They could also have the effect of discouraging others from making tender offers for our common stock, including transactions that may be in your best interests. These provisions may also prevent changes in our management or limit the price that investors are willing to pay for our stock.

Concentration of ownership of our common stock among our existing executive officers, directors and large stockholders may prevent smaller stockholders from influencing significant corporate decisions.

Our executive officers, directors and current beneficial owners of 5% or more of our common stock and their respective affiliates, in the aggregate, beneficially own a substantial percentage of our outstanding common stock. These persons, acting together, are able to significantly influence all matters requiring stockholder approval, including the election and removal of directors, any merger, consolidation, sale of all or substantially all of our assets, or other significant corporate transactions. The interests of this group of stockholders may not coincide with our interests or the interests of other stockholders.

If we fail to maintain proper and effective internal controls, our ability to produce accurate financial statements on a timely basis could be impaired.

We are subject to the reporting requirements of the Securities Exchange Act of 1934, the Sarbanes-Oxley Act and the rules and regulations of the NASDAQ Global Select Market. The Sarbanes-Oxley Act requires, among other things, that we maintain effective disclosure controls and procedures and internal control over financial reporting. Commencing with our fiscal year ending December 31, 2015, we must perform system and process evaluation and testing of our internal control

over financial reporting to allow management to report on the effectiveness of our internal control over financial reporting in our Form 10-K filing for that year, as required by Section 404 of the Sarbanes-Oxley Act. This may require us to incur substantial additional professional fees and internal costs to further expand our accounting and finance functions and expend significant management efforts. Prior to our initial public offering, we were never required to test our internal controls within a specified period, and, as a result, we may experience difficulty in meeting these reporting requirements in a timely manner.

We may in the future discover material weaknesses in our system of internal financial and accounting controls and procedures that could result in a material misstatement of our financial statements. In addition, our internal control over financial reporting will not prevent or detect all errors and all fraud. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the control system's objectives will be met. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that misstatements due to errors or fraud will not occur or that all control issues and instances of fraud will be detected.

If we are not able to comply with the requirements of Section 404 of the Sarbanes-Oxley Act in a timely manner, or if we are unable to maintain proper and effective internal controls, we may not be able to produce timely and accurate financial statements. If that were to happen, the market price of our stock could decline and we could be subject to sanctions or investigations by the stock exchange on which our common stock is listed, the Securities and Exchange Commission, or SEC, or other regulatory authorities.

Because we do not anticipate paying any cash dividends on our common stock in the foreseeable future, capital appreciation, if any, will be your sole source of gains and you may never receive a return on your investment.

You should not rely on an investment in our common stock to provide dividend income. We have not declared or paid cash dividends on our common stock to date. We currently intend to retain our future earnings, if any, to fund the development and growth of our business. In addition, the terms of our existing credit facility preclude, and the terms of any future debt agreements is likely to similarly preclude, us from paying dividends. As a result, capital appreciation, if any, of our common stock will be your sole source of gain for the foreseeable future. Investors seeking cash dividends should not purchase our common stock.

We incur increased costs and demands upon management as a result of being a public company.

As a public company listed in the United States, we incur significant additional legal, accounting and other costs. These additional costs could negatively affect our financial results. In addition, changing laws, regulations and standards relating to corporate governance and public disclosure, including regulations implemented by the SEC and the NASDAQ Global Select Market, may increase legal and financial compliance costs and make some activities more time-consuming. These laws, regulations and standards are subject to varying interpretations and, as a result, their application in practice may evolve over time as new guidance is provided by regulatory and governing bodies. We intend to invest resources to comply with evolving laws, regulations and standards, and this investment may result in increased general and administrative expenses and a diversion of management's time and attention from revenue-generating activities to compliance activities. If, notwithstanding our efforts to comply with new laws, regulations and standards, we fail to comply, regulatory authorities may initiate legal proceedings against us and our business may be harmed.

Failure to comply with these rules might also make it more difficult for us to obtain some types of insurance, including director and officer liability insurance, and we might be forced to accept reduced

policy limits and coverage or incur substantially higher costs to obtain the same or similar coverage. The impact of these events could also make it more difficult for us to attract and retain qualified persons to serve on our board of directors, on committees of our board of directors or as members of senior management.

The Company is not presently involved in any legal proceeding or other contingency that, if determined adversely to it, would individually or in the aggregate have a material adverse effect on its business, operating results, financial condition or cash flows. Accordingly, the Company does not believe that there is a reasonable possibility that a material loss exceeding amounts already recognized may have been incurred as of the date of the balance sheets presented herein.

Item 5. Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Our common stock has been listed on the NASDAQ Global Select Market since March 28, 2014, under the symbol "TWOU". Prior to our initial public offering, there was no public market for our common stock.

The following table set forth for the indicated periods the high and low sales prices of our common stock as reported on the NASDAQ Global Select Market.

As of March 3, 2016, there were 55 registered stockholders of record for our common stock. The actual number of stockholders is greater than this number of record holders and includes stockholders who are beneficial owners but whose shares are held in street name by brokers and other nominees. This number of holders of record also does not include stockholders whose shares may be held in trust by other entities.

The graph set forth below compares the cumulative total stockholder return on an initial investment of $100 in our common stock between March 28, 2014 (the date of our initial public offering) and December 31, 2015, with the comparative cumulative total return of such amount over the same period on (i) the NASDAQ Composite Index, (ii) the Russell 3000 Index and (iii) the following peer issuers: LogMeIn, Inc., Ellie Mae, Inc., Workiva Inc., inContact, Inc., Cvent, Inc. and Fleetmatics Group PLC. Each peer issuer was weighted according to its respective market capitalization on March 28, 2014. We have not paid any cash dividends and, therefore, the cumulative total return calculation for us is based solely upon our stock price appreciation or depreciation and does not include any reinvestment of cash dividends. The graph assumes our closing sales price on March 28, 2014 of $13.98 per share as the initial value of our common stock. The comparisons shown in the graph below are based upon historical data, and are not necessarily indicative of, nor intended to forecast, the potential future stock performance of our common stock.

Comparison of Cumulative Total Return
Through December 31, 2015
Assumes Initial Investment of $100

The information presented above in the stock performance graph shall not be deemed to be "soliciting material" or to be "filed" with the SEC or subject to Regulation 14A or 14C, except to the extent that we subsequently specifically request that such information be treated as soliciting material or specifically incorporate it by reference into a filing under the Securities Act of 1933, as amended, or a filing under the Securities Exchange Act of 1934, as amended.

We have never declared or paid any dividends on our common stock. We anticipate that we will retain all of our future earnings, if any, for use in the operation and expansion of our business and do not anticipate paying cash dividends in the foreseeable future. Additionally, our ability to pay dividends on our common stock is limited by restrictions under the terms of the agreements governing our credit facility, and the terms of any future loan agreement into which we may enter or any additional debt securities we may issue are likely to contain similar restrictions on the payment of dividends.

On March 27, 2014, our Registration Statement on Form S-1 (File No. 333-194079) was declared effective by the SEC for our initial public offering pursuant to which we sold an aggregate of 8,626,377

shares of common stock at a price of $13.00 per share. In addition, selling stockholders, including certain of our officers and directors, sold in our initial public offering an aggregate of 1,610,075 shares of common stock. The offering commenced on March 28, 2014 and did not terminate before all the securities registered in the Registration Statement were sold. Goldman Sachs & Co. and Credit Suisse Securities (USA) LLC acted as joint book-running managers for the offering. Needham & Company, LLC, Oppenheimer & Co. Inc., and Pacific Crest Securities LLC acted as co-managers. On April 2, 2014, we closed the sale of such securities, resulting in net proceeds to us of approximately $100.3 million after deducting underwriting discounts and commissions of $7.8 million and other offering expenses of approximately $4.0 million. We did not receive any proceeds from the sale of shares in our initial public offering by the selling stockholders. In connection with our initial public offering, no payments were made by us to directors, officers or persons owning ten percent or more of our common stock or to their associates or to our affiliates. There has been no material change in the planned use of proceeds from our initial public offering as described in our prospectus filed pursuant to Rule 424(b) under the Securities Act of 1933, as amended, with the Securities and Exchange Commission on March 28, 2014.

On September 30, 2015, we sold 3,625,000 shares of our common stock to the public, including 525,000 shares sold pursuant to the underwriters' over-allotment option. We received net proceeds of $117.1 million, which we intend to use for general corporate purposes.

See the information for the years 2012 through 2015 contained in the table titled "Selected Financial Data," which is included in this Annual Report on Form 10-K and listed in the Index to Consolidated Financial Statements on page 50 hereof (with only the information for such years to be deemed filed as part of this Annual Report on Form 10-K).

Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations

See the information contained under the heading "Management's Discussion and Analysis of Results of Operations and Financial Condition," which is included in this Annual Report on Form 10-K and listed in the Index to Consolidated Financial Statements on page 50 hereof.

Market risk is the risk of loss to future earnings, values or future cash flows that may result from changes in the price of a financial instrument. The value of a financial instrument may change as a result of changes in interest rates, exchange rates, commodity prices, equity prices and other market changes. Our exposure to market risk related to changes in foreign currency exchange rates is deemed low as further described below. In addition, we do not use derivative financial instruments for speculative, hedging or trading purposes, although in the future we may enter into exchange rate hedging arrangements to manage the risks described in the succeeding paragraphs.

We are subject to interest rate risk in connection with potential borrowings available under our bank line of credit which was procured in December 2013 and amended in December 2015. Borrowings under the revolving line of credit bear interest at variable rates. Increases in the LIBOR or our lender's prime rate would increase the amount of interest payable on any borrowings outstanding under this line of credit. On January 21, 2014, we borrowed $5.0 million under this line of credit and repaid this borrowing in full on February 18, 2014. There have been no subsequent borrowings under this line of credit, and therefore, no amounts were outstanding as of December 31, 2015.

All of our current client contracts are denominated in U.S. dollars. Therefore, we have minimal, if any, foreign currency exchange risk with respect to our revenue.

We have a branch office in Hong Kong for program marketing and student support and incur expenses related to its operations. The functional currency of this office is Hong Kong dollars, which exposes us to changes in foreign currency exchange rates. Hong Kong dollar currency rates have historically been tied to the U.S. dollar, however. In addition, because of the small size of our Hong Kong office and the relatively nominal amount of our expenses denominated in Hong Kong dollars, we do not expect any material effect on our financial position or results of operations from fluctuations in exchange rates. However, our exposure to foreign currency exchange risk may change over time as business practices evolve, and if our exposure increases, adverse movement in foreign currency exchange rates could have a material adverse impact on our financial results.

We do not believe that inflation has had a material effect on our business, financial condition or results of operations. Through our pricing model, we benefit from price increases implemented by our clients, and we continue to monitor inflation-driven cost increases in order to minimize their effects through productivity improvements and cost containment efforts. If our costs were to become subject to significant inflationary pressures, the price increases implemented by our clients and our own pricing strategies might not fully offset the higher costs. Our inability or failure to do so could harm our business, financial condition and results of operations.

See the Company's Consolidated Financial Statements at December 31, 2015, and for the periods then ended, together with the report of KPMG LLP thereon and the information contained in Note 14 in said Consolidated Financial Statements titled "Quarterly Financial Information (Unaudited)," which are included in this Annual Report on Form 10-K and listed in the Index to Consolidated Financial Statements on page 50 hereof.

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

An evaluation was performed by our management, with the participation of our Chief Executive Officer (our Principal Executive Officer) and our Chief Financial Officer (our Principal Financial Officer), of the effectiveness of our disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)), as of December 31, 2015. Based on that evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that our disclosure controls and procedures, as designed and implemented, are effective in ensuring that information required to be disclosed by us in the reports that we file or submit 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 and is accumulated and communicated to management, including the Chief Executive Officer and Chief Financial Officer, in a manner that allows timely decisions regarding required disclosure.

There have been no changes in our internal control over financial reporting that occurred during the period covered by this Annual Report on Form 10-K that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

We will file a definitive Proxy Statement for our 2016 Annual Meeting of Stockholders or our 2016 Proxy Statement with the SEC, pursuant to Regulation 14A, not later than 120 days after the end of our fiscal year. Accordingly, certain information required by Part III has been omitted under General Instruction G(3) to Form 10-K. Only those sections of the 2016 Proxy Statement that specifically address the items set forth herein are incorporated by reference.

The information required by Item 10 is hereby incorporated by reference to the sections of our 2016 Proxy Statement under the captions "Board of Directors and Committees," "Election of Directors," "Management" and "Section 16(a) Beneficial Ownership Reporting Compliance."

The information required by Item 11 is hereby incorporated by reference to the sections of our 2016 Proxy Statement under the captions "Executive Compensation" and "Director Compensation."

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

The information required by Item 12 is hereby incorporated by reference to the sections of our 2016 Proxy Statement under the captions "Security Ownership of Certain Beneficial Owners and Management" and "Securities Authorized for Issuance under Equity Compensation Plans."

Item 13. Certain Relationships and Related Transactions, and Director Independence

The information required by Item 13 is hereby incorporated by reference to the sections of our 2016 Proxy Statement under the captions "Transactions with Related Parties" and "Director Independence."

The information required by Item 14 is hereby incorporated by reference to the section of our 2016 Proxy Statement under the caption "Independent Registered Public Accounting Firm Fees."

See the Exhibit Index immediately following the Selected Financial Data of this Annual Report on Form 10-K.

Pursuant to the requirements of Section 13 or 15 (d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized:

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

Signature	Title	Date


/s/ CHRISTOPHER J. PAUCEK Christopher J. Paucek	Chief Executive Officer and Director (Principal Executive Officer)	March 10, 2016
/s/ CATHERINE A. GRAHAM Catherine A. Graham	Chief Financial Officer (Principal Financial Officer)	March 10, 2016
/s/ ANDREA PAPACONSTANTOPOULOS Andrea Papaconstantopoulos	Chief Accounting Officer (Principal Accounting Officer)	March 10, 2016
/s/ PAUL A. MAEDER Paul A. Maeder	Director and Chairman of the Board	March 10, 2016
/s/ MARK J. CHERNIS Mark J. Chernis	Director	March 10, 2016
/s/ TIMOTHY M. HALEY Timothy M. Haley	Director	March 10, 2016
/s/ JOHN M. LARSON John M. Larson	Director	March 10, 2016
/s/ MICHAEL T. MOE Michael T. Moe	Director	March 10, 2016
/s/ ROBERT M. STAVIS Robert M. Stavis	Director	March 10, 2016
/s/ SALLIE L. KRAWCHECK Sallie L. Krawcheck	Director	March 10, 2016
/s/ EARL LEWIS Earl Lewis	Director	March 10, 2016
/s/ EDWARD S. MACIAS Edward S. Macias	Director	March 10, 2016

Management's Discussion and Analysis of Financial Condition and Results of Operations

You should read the following discussion and analysis of our financial condition and results of operations in conjunction with our consolidated financial statements and the related notes and other financial information included elsewhere in this Annual Report on Form 10-K. Some of the information contained in this discussion and analysis or set forth elsewhere in this report, including information with respect to our plans and strategy for our business, includes forward-looking statements that involve risks and uncertainties. You should review Item 1A. "Risk Factors" and "Special Note Regarding Forward-Looking Statements" in this report for a discussion of important factors that could cause actual results to differ materially from the results described in or implied by the forward-looking statements contained in the following discussion and analysis.

We are a leading provider of an integrated solution comprised of cloud-based software-as-a-service, or SaaS, technology fused with technology-enabled services, which we refer to as our Platform. Our Platform enables leading nonprofit colleges and universities to deliver their high quality education to qualified students anywhere. Our SaaS technology consists of an innovative online learning environment, which we refer to as Online Campus, and our operations applications. This technology is fused with technology-enabled services, to complete our Platform. Our Platform allows our clients' programs to expand and operate at scale, providing the comprehensive infrastructure colleges and universities need to attract, enroll, educate, support and graduate their students. By leveraging our Platform, we believe our clients are able to expand their addressable markets while providing educational engagement, experiences and outcomes to their online students that match or exceed those of their on-campus offerings.

Our clients use the Online Campus portion of our Platform to offer high quality educational content, instructor-led classes averaging 12 students per session in a live, intimate and engaging setting, and a rich social networking experience, all accessible through proprietary web-based and mobile applications. Online Campus challenges every student to learn from the front row and every faculty member to engage students in new and innovative ways. Our clients use the operations applications within our Platform to expand, enable and support their online operations, and integrate those operations with their existing university systems. These applications provide the content management, admissions application processing, customer relationship management, and other functionality necessary to effectively operate our clients' programs. Our Platform also provides clients with real-time data and deep analytical insight related to student performance and engagement, student and faculty satisfaction, and enrollment. We believe that the SaaS technology within our Platform is flexible, easy to use, highly scalable and characterized by a high level of availability and security.

The technology-enabled services we provide within our Platform are designed to improve enrollment and retention of our clients' students as well as to provide those students with a complete, high quality educational experience. We have primary responsibility for identifying qualified students for our clients' programs, generating potential student interest in the programs and driving applications to the programs. We have developed sophisticated digital program marketing and student acquisition capabilities, and we work closely with our clients to help them create highly engaging multimedia instructional content for delivery through Online Campus. We also provide other services that support the complete lifecycle of a higher education program, including advising prospective students through the admissions application process, providing technical, success coaching and other support, facilitating accessibility to individuals with disabilities, and facilitating in-program field placements. We provide the significant domain expertise and operating capacity our clients require to scale and operate successfully in the online environment.

Our clients primarily use our Platform to offer full graduate degree programs online. Our client contracts generally have initial terms between 10 and 15 years in length, and, since our inception, all of the clients that have engaged us remain active. In addition, three of our clients who have launched programs and have students enrolled have elected to extend the initial terms of four program agreements with us in advance of those contracts renewing. With these extensions, the initial terms of those programs now extend to between 2027 and 2032. The students in these programs receive the same degree or credit as their on-campus counterparts, and generally pay equivalent tuition.

A significant percentage of our annual revenue is related to students returning to our clients' programs after their first academic term. In the twelve months ended December 31, 2015, 58% of our revenue was related to students who had enrolled and completed their first academic term prior to the start of the year. We believe this high percentage of revenue attributable to returning students contributes to the predictability and recurring nature of our business.

We have achieved significant growth in a relatively short period of time. Full course equivalent enrollments in our clients' programs grew from 31,338 during the twelve months ended December 31, 2013 to 57,019 during the twelve months ended December 31, 2015, representing a compound annual growth rate of 35%. From our inception through December 31, 2015, more than 17,500 unique individuals have enrolled as students in our clients' programs. For the years ended December 31, 2015, 2014 and 2013, our revenue was $150.2 million, $110.2 million and $83.1 million, respectively. However, because we must incur significant technology, content development, program marketing and sales expenses well in advance of generating revenue under a new client program, we have a history of losses despite our revenue growth. In order to become profitable, our revenue from existing client programs will need to increase at a rate faster than the expenses we will incur in connection with the launch of new client programs.

We believe our business strategy will continue to offer significant opportunities for growth, but it also presents a number of risks and challenges. In particular, to remain competitive, we will need to continue to innovate in a rapidly changing landscape for the application of technology like ours to the delivery of higher education. As described above, we have added, and we intend to continue to add, degree programs in a number of new academic disciplines each year, as well as to expand the delivery of existing degree programs to new clients and to add new offerings to current programs. To do so, we will need to convince new clients as to the quality and value of our Platform, cost-effectively identify qualified students for our clients' programs and help our clients retain those students once enrolled. We must also be able to successfully execute our business strategy while navigating constantly changing higher education laws and regulations applicable to our clients and, in some cases to ourselves, particularly the incentive compensation rule that generally prohibits making incentive payments related to student acquisition. We seek to ensure that addressing all of these risks and challenges does not divert our management's attention from continuing to build on the strengths that we believe have driven the growth of our business over the last several years. We believe our focus on delivering a differentiated Platform, maintaining the integrity of our clients' educational brands and enabling strong student outcomes will contribute to the success of our business. However, we may not be successful in addressing and managing the many challenges and risks that we face.

Substantially all of our revenue is derived from revenue-share arrangements with our clients, under which we receive a contractually specified percentage of the amounts students pay them in tuition and other fees. Accordingly, the primary driver of our revenue growth is the number of student course enrollments in our clients' programs. This in turn is influenced primarily by three factors:

In the near term, we expect the primary drivers of our financial results to continue to be our two programs with the University of Southern California, which are our longest running programs, which we launched in 2009 and 2010. For the years ended December 31, 2015, 2014 and 2013, 43%, 55% and 69%, respectively, of our revenue was derived from these two programs. We expect the University of Southern California will continue to account for a large portion of our revenue even though that portion will likely continue to decline as other client programs become more mature and achieve higher enrollment levels. For example, our programs with Simmons College and the University of North Carolina at Chapel Hill accounted for 16% and 12%, respectively, of our revenue for the year ended December 31, 2015.

Our most significant expense in each fiscal period has been program marketing and sales expense, which relates primarily to student acquisition activities. We do not spend significant amounts on new client or program acquisition and we do not maintain a sales force targeted at potential new clients or programs since our model is not dependent on launching a large number of new programs per year, either with new or existing clients. Instead, our new clients and programs are largely generated through a direct approach by our senior management to selected colleges and universities.

We have primary responsibility for identifying qualified students for our clients' programs, generating potential student interest in the programs and driving applications to the programs. While our clients make all admissions decisions, the number of students who enroll in our clients' programs in any given period is significantly dependent on the amount we have spent on these student acquisition activities in prior periods. Accordingly, although most of our clients' programs span multiple academic terms and, therefore, generate continued revenue beyond the term in which initial enrollments occur, we expect that we will need to continue to incur significant program marketing and sales expense for existing programs going forward to generate a continuous pipeline of new enrollments. For new programs, we begin incurring program marketing and sales costs as early as nine months prior to the start of a new client program.

We typically identify prospective students for our clients' programs between three months and two or more years before they ultimately enroll. For the students currently enrolled in our clients' programs and those who have graduated, the average time from our initial prospective student acquisition to initial enrollment was seven months. For the students who have graduated from these programs, the average time from initial enrollment to graduation was 22 months. Based on the student retention rates and patterns we have observed in our clients' programs, we estimate that, for our current programs, the average time from a student's initial enrollment to graduation will be approximately two years.

Accordingly, our program marketing and sales expense in any period is an investment we make to generate revenue in future periods. Likewise, revenue generated in any period is largely attributable to the investment made in student acquisition activities in earlier periods. Because program marketing and sales expense in any period is almost entirely unrelated to revenue generated in that period, we do not believe it is meaningful to directly compare the two. We believe that the total revenue we will receive in the future from students who enroll in our clients' programs as a result of current period program marketing and sales expense will be significantly greater as a multiple of that expense than is implied by the multiple of current period revenue to current period program marketing and sales expense. Further, we believe that our program marketing and sales expense in future periods will generally decline as a percentage of the revenue reported in those same periods as our revenue base from returning students in existing programs increases.

We continually manage our program marketing and sales expense to ensure that across our portfolio of client programs, our cost to acquire students for these programs is appropriate for our business model. We use a ratio of attrition adjusted lifetime revenue of a student, or LTR, to the total cost to acquire that student, or TCA, as the measure of our marketing efficiency and to determine how much we are willing to spend to acquire an additional student for any program. The calculations included in this ratio include certain assumptions. For any period, we know what we spent on program sales and marketing and therefore, can accurately calculate the ratio's denominator. However, given the time lag between when we incur our program marketing and sales expense and when we receive revenue related to students enrolled based on that expense, we have to incorporate forecasts of student enrollments and retention into our calculation of the ratio's numerator, which is our estimate of future revenue related to that period's expense. We use the significant amount of data we have on the effectiveness of various marketing channels, student attrition and other factors to inform our forecasts and are continually testing the assumptions underlying these forecasts against actual results to give us confidence that our forecasts are reasonable. The LTR to TCA ratio may vary from program to program depending on the degree being offered, where that program is in its lifecycle and whether we enable the same or similar degrees at other universities.

Our revenue, cash position, accounts receivable and deferred revenue can fluctuate significantly from quarter to quarter due to variations driven by the academic schedules of our clients' programs. These programs generally start classes for new and returning students an average of four times per year. Class starts are not necessarily evenly spaced throughout the year, do not necessarily correspond to the traditional academic calendar and may vary from year to year. As a result, the number of classes our client programs have in session, and therefore the number of students enrolled, will vary from month to month and quarter to quarter, leading to variability in our revenue.

Our clients' programs often have academic terms that straddle two fiscal quarters. Our clients generally pay us when they have billed tuition and specified fees to their students, which is typically early in the academic term, and once the drop/add period has passed. We recognize the related revenue ratably over the course of the academic term, beginning on the first day of classes through the last. Because we generally receive payments from our clients prior to our ability to recognize the majority of those amounts as revenue, we record deferred revenue at each balance sheet date equal to the excess of the amounts we have billed or received from our clients over the amounts we have recognized as revenue as of that date. For these reasons, our cash flows typically vary considerably from quarter to quarter and our cash position, accounts receivable and deferred revenue typically fluctuate between quarterly balance sheet dates.

Our expense levels also fluctuate from quarter to quarter, driven primarily by our program marketing and sales activity. We typically reduce our paid search and other program marketing and sales efforts during late November and December because these efforts are less productive during the

holiday season. This generally results in lower total program marketing and sales expense during the fourth quarter. In addition, because we begin spending on program marketing and sales, and, to a lesser extent, services and support as much as nine months prior to the start of classes for a new client program, these costs as a percentage of revenue fluctuate, sometimes significantly, depending on the timing of new client programs and anticipated program launch dates.

We use a number of key metrics to evaluate our business, measure our performance, identify trends affecting our business, formulate financial projections and make strategic decisions. In addition to adjusted EBITDA loss, which we discuss below, we discuss revenue and the components of operating loss in the section below entitled "—Components of Operating Results." Additionally, we utilize other key metrics to evaluate the success of our growth strategy, including measures we refer to as Platform revenue retention rate and full course equivalent enrollments in our clients' programs.

We measure our Platform revenue retention rate for a particular period by first identifying the group of programs that our clients launched before the beginning of the prior year comparative period. We then calculate our Platform revenue retention rate by comparing the revenue we recognized for this group of programs in the reporting period to the revenue we recognized for the same group of programs in the prior year comparative period, expressed as a percentage of the revenue we recognized for the group in the prior year comparative period.

The following table sets forth our Platform revenue retention rate for the periods presented, as well as the number of programs included in the Platform revenue retention rate calculation. For all of these periods, our Platform revenue retention rate was greater than 100% because we had no programs terminate and full course equivalent enrollments in the aggregate increased year-over-year. There is no direct correlation between the Platform revenue retention rate and the number of programs included in the calculation of that rate. However, there may be a correlation between the Platform revenue retention rate and the average maturity of the programs included in the calculation of that rate because newer programs tend to have higher percentage growth rates.

We measure full course equivalent enrollments in our clients' programs by determining, for each of the courses offered during a particular period, the number of students enrolled in that course multiplied by the percentage of the course completed during that period. We use this metric to account for the fact that many courses offered by our clients straddle two or more fiscal quarters. For example, if a course had 25 enrolled students and 40% of the course was completed during a particular period, we would count the course as having 10 full course equivalent enrollments for that period. Any individual student may be enrolled in more than one course during a period.

Average revenue per full course equivalent enrollment represents our weighted-average revenue per course across the mix of courses being offered in our client programs during a period. This number is derived by dividing our total revenue for a period by the number of full course equivalent enrollments during that same period. This amount may vary from period to period depending on the

academic calendars of our clients, the relative growth rates of programs with varying tuition levels, the launch of new programs with higher or lower than average net tuition costs and annual tuition increases instituted by our clients. As a part of our growth strategy, we are actively targeting new graduate-level programs in academic disciplines for which we have existing programs. Over time, this strategy may reduce our average revenue per full course equivalent if these new programs in existing academic disciplines have lower program tuitions than that of the first program. However, we believe this approach will enable us to leverage our program marketing investments across these multiple program disciplines, significantly decreasing student acquisition costs within those disciplines and more than offsetting any decline in average revenue per full course equivalent enrollment.

The following table sets forth the full course equivalent enrollments and average revenue per full course equivalent enrollment in our clients' programs for the periods presented.

Adjusted EBITDA loss represents our earnings before net interest (income) expense, income taxes, depreciation and amortization, adjusted to eliminate stock-based compensation expense, which is a non-cash item. Adjusted EBITDA loss is a key measure used by our management and 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 operational plans. In particular, the exclusion of certain expenses in calculating adjusted EBITDA loss can provide a useful measure for period-to-period comparisons of our core business. Accordingly, we believe that adjusted EBITDA loss provides useful information to investors and others in understanding and evaluating our operating results in the same manner as our management and board of directors.

Adjusted EBITDA loss is not a measure calculated in accordance with U.S. GAAP, and should not be considered as an alternative to any measure of financial performance calculated and presented in accordance with U.S. GAAP. In addition, adjusted EBITDA loss may not be comparable to similarly titled measures of other companies because other companies may not calculate adjusted EBITDA loss in the same manner as we do. We prepare adjusted EBITDA loss to eliminate the impact of stock-based compensation expense, which we do not consider indicative of our core operating performance.

Our use of adjusted EBITDA loss has limitation 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 U.S. GAAP. Some of these limitations are:

Because of these and other limitations, you should consider adjusted EBITDA loss alongside other U.S. GAAP-based financial performance measures, including various cash flow metrics, net income (loss) and our other U.S. GAAP results. The following table presents a reconciliation of adjusted EBITDA loss to net loss for each of the periods indicated:

Substantially all of our revenue consists of a contractually specified percentage of the amounts our clients bill to their students for tuition and fees, less credit card fees and other specified charges we have agreed to exclude in certain of our client contracts, which we refer to as net program proceeds. We recognize revenue ratably over the service period, which we define as the first through the last day of classes for each academic term in a client's program.

We establish a refund allowance for our share of tuition and fees ultimately uncollected by our clients.

We also offered rebates to a limited group of students who enrolled in a specific client program between 2009 and 2011, which we will be required to pay to such students if they complete their degrees and pre-specified, post-graduation work requirements within a defined period of time after graduation. For students in this group who are still enrolled in the program, we accrue the rebate liability as they continue through the program towards graduation. In addition, all students in this group are required to certify to us each September as to their continuing eligibility for these rebates. For those students who do not make such certification and are therefore no longer eligible for the rebate, because, for example, they have failed to meet their post-graduation work requirements, we reduce the allowance accordingly at that time. As of December 31, 2015 and 2014, 81 and 130 students, respectively, remained eligible to receive these rebates. These rebates and refunds offset the net program proceeds that we recognize as revenue.

The following table sets forth the components of our revenue for the periods indicated.

In addition to providing access to the SaaS technology within our Platform, we provide technology-enabled services that support the complete lifecycle of a higher education program, including attracting students, advising prospective students through the admissions application process, providing technical, success coaching and other support, facilitating accessibility to individuals with disabilities and facilitating in-program field placements. We have determined that no individual deliverable has standalone value upon delivery and, therefore, the multiple deliverables within our arrangements do not qualify for treatment as separate units of accounting. Accordingly, we consider all deliverables to be a single unit of accounting and we recognize revenue from the entire arrangement over the term of the service period.

We generally receive payments from our clients early in each academic term, prior to completion of the service period. We record these advance payments as deferred revenue until the services are delivered or until our obligations are otherwise met, at which time we recognize the revenue. As of each balance sheet date, deferred revenue is a current liability and represents the excess amounts we have billed or received over the amounts we have recognized as revenue in the consolidated statements of operations as of that date.

Costs and expenses consist of servicing and support costs, technology and content development costs, program marketing and sales expenses and general and administrative expenses. To support our anticipated growth, we expect to continue to hire new employees, increase our program promotion and student acquisition efforts, expand our technology infrastructure and increase our other program support capabilities. As a result, we expect our costs and expenses to increase in absolute dollars, but to decrease as a percentage of revenue over time as we achieve economies of scale through the expansion of our business.

Servicing and support. Servicing and support expense consists primarily of compensation costs related to program management and operations, as well as costs for technical support for our SaaS technology and faculty and student support. It includes costs to facilitate in-program field placements, student immersions and other student enrichment experiences, and to assist our clients with their state compliance requirements. It also includes software licensing, telecommunications and other costs to provide access to the SaaS technology within our Platform for our clients and their students.

Technology and content development. Technology and content development expense consists primarily of compensation and outsourced services costs related to the ongoing improvement and maintenance of the SaaS technology within our Platform, and the developed content for our client programs. It also includes the costs to support our internal infrastructure, including our cloud-based server usage. Additionally, it includes the associated depreciation and amortization expense related to internally developed software and content, as well as hosting and other costs associated with maintaining the SaaS technology within our Platform in a cloud environment.

Program marketing and sales. Program marketing and sales expense consists primarily of costs related to student acquisition. This includes the cost of online advertising and prospective student generation, as well as compensation costs for our program marketing, search engine optimization, marketing analytics and admissions application counseling personnel. We expense all costs related to program marketing and sales as they are incurred.

General and administrative. General and administrative expense consists primarily of compensation costs for employees in our executive, administrative, finance and accounting, legal, communications and human resources functions. Additional expenses include external legal, accounting and other professional fees, telecommunications charges and other corporate costs such as insurance and travel that are not related to another function.

Other income (expense) consists of interest income, interest expense and other expenses. Interest income is derived from interest received on our cash and cash equivalents. Interest expense consists primarily of the amortization of deferred financing costs associated with our line of credit and convertible notes prior to their conversion and changes in our preferred stock warrant liability as a result of changes in the fair value of such warrants (through April 2, 2014).

The fair value of our preferred stock warrant liability was reassessed at the end of each reporting period and any increase in fair value was recognized in other expense, while any decrease in fair value was recognized in other income. Upon completion of our initial public offering, or IPO, the preferred stock warrants automatically became warrants to purchase common stock. At that time, we reclassified the preferred stock warrant liability to additional paid-in capital and no further changes in fair value will be recognized in other income or expense.

For the year ended December 31, 2015, other expense consisted of a loss on an investment we made in an early stage entity to test international marketing channels.

Income tax expense consists of U.S. federal, state and foreign income taxes. To date, we have not been required to pay U.S. federal income taxes because of our current and accumulated net operating losses. We incurred immaterial state and foreign income tax liabilities for the years ended December 31, 2015, 2014 and 2013.

The following table sets forth selected consolidated statement of operations data for each of the periods indicated.

	Year Ended December 31,

	2015						2014						Period-to-Period Change
				Percentage of Revenue						Percentage of Revenue			Period-to-Period Change
	Amount			Percentage of Revenue			Amount			Percentage of Revenue			Amount			Percentage
	(dollars in thousands)
Revenue	$	150,194			100.0	%	$	110,239			100.0	%	$	39,955			36.2	%
Costs and expenses:
Servicing and support		32,047			21.4			26,858			24.4			5,189			19.3
Technology and content development		27,211			18.1			22,621			20.5			4,590			20.3
Program marketing and sales		82,911			55.2			65,218			59.2			17,693			27.1
General and administrative		34,123			22.7			23,420			21.2			10,703			45.7

Total costs and expenses		176,292			117.4			138,117			125.3			38,175			27.6

Loss from operations		(26,098	)		(17.4	)		(27,878	)		(25.3	)		1,780			(6.4	)
Other income (expense):
Interest expense		(552	)		(0.4	)		(1,213	)		(1.1	)		661			(54.4	)
Interest income		167			0.1			92			0.1			75			81.8
Other		(250	)		(0.1	)		—			0.0			(250	)			*

Total other income (expense)		(635	)		(0.4	)		(1,121	)		(1.0	)		486			(43.3	)

Net loss	$	(26,733	)		(17.8	)%	$	(28,999	)		(26.3	)%	$	2,266			(7.8	)

Revenue. Revenue for the year ended December 31, 2015 was $150.2 million, an increase of $40.0 million, or 36.2%, from $110.2 million for the year ended December 31, 2014. Of the increase, the four client programs that launched prior to January 1, 2013 resulted in higher period-over-period revenues of $5.1 million, while $16.9 million was primarily attributable to increases in period-over-period full course equivalent enrollments in the client programs that launched in 2013. Increases in full course equivalent enrollments in the programs that launched in 2014 contributed $10.6 million in additional revenues, while the client programs that launched in 2015 generated $8.1 million on a year-to-date basis. In addition, our rebate liability decreased less in 2015 than it had in the prior year, which resulted in a corresponding decrease in our year-over-year revenue of $0.7 million. The decrease in the rebate liability was the result of certain students not certifying their continuing eligibility for the rebate program.

Servicing and support. Servicing and support costs for the year ended December 31, 2015 were $32.0 million, an increase of $5.2 million, or 19.3%, from $26.8 million for the year ended December 31, 2014. This increase was due primarily to a $3.9 million increase in compensation costs, and a $0.2 million increase in travel and related expenses as we increased our headcount in this area by 25% to serve a growing number of students and faculty in existing and new client programs. Additionally, costs for student support services increased by $0.6 million, software licensing costs increased by $0.3 million and costs for facilitating in-program field placements increased by $0.2 million. As a percentage of revenue, servicing and support costs decreased from 24.4% for the year ended December 31, 2014 to 21.4% for the same period of 2015, as client programs continued to mature and greater operational efficiencies were achieved.

Technology and content development. Technology and content development costs for the year ended December 31, 2015 were $27.2 million, an increase of $4.6 million, or 20.3%, from $22.6 million for the year ended December 31, 2014. This was due primarily to a $2.8 million increase in compensation costs (net of capitalized amounts for software and content development) as we increased our headcount in this area by 23% to support additional client program launches and scaling of existing client programs. Further, an increase of $1.4 million resulted from higher depreciation expense associated with our capitalized internal use software and content development costs, primarily as a result of an increase in the number of courses that have been developed for our client programs. Additionally, costs related to our cloud-based server usage increased by $0.4 million to support a greater number of our clients' programs. As a percentage of revenue, technology and content development costs decreased from 20.5% for the year ended December 31, 2014 to 18.1% for the same period of 2015, as we have continued to achieve scale.

Program marketing and sales. Program marketing and sales expense for the year ended December 31, 2015 was $82.9 million, an increase of $17.7 million, or 27.1%, from $65.2 million for the year ended December 31, 2014. This increase was due primarily to an $8.4 million increase in direct internet marketing costs to acquire students for our clients' programs. Additionally, compensation costs increased by $8.0 million as we increased our headcount in this area by 29% to acquire students for, and drive revenue growth in, new client programs, while advertising expenses increased by $0.2 million and other program marketing and sales expenses increased by $1.1 million to support our program marketing efforts. As a percentage of revenue, program marketing and sales expense decreased from 59.2% for year ended December 31, 2014 to 55.2% for the same period of 2015, reflecting a higher year-over-year percentage increase in revenue than the increase in expense.

General and administrative. General and administrative expense for the year ended December 31, 2015 was $34.1 million, an increase of $10.7 million, or 45.7%, from $23.4 million for the year ended December 31, 2014. This was due primarily to a $6.7 million increase in compensation costs and $1.0 million increase in travel and related expenses, as we increased our headcount in this area by 22% to support our growth. Additionally, we recorded a $0.8 million charge related to the execution of a

new lease for our Maryland headquarters, costs for higher education benefits we provide to our employees increased by $0.5 million, while legal and other professional fees increased by $0.7 million. Further, insurance costs increased by $0.1 million and other general and administrative costs increased by $0.9 million. As a percentage of revenue, general and administrative expense increased from 21.2% for the year ended December 31, 2014 to 22.7% for the same period of 2015.

Other income (expense). Other income (expense) for the year ended December 31, 2015 was a net expense of $0.6 million, a decrease of $0.5 million, or 43.3%, from $1.1 million for the same period of 2014. This decrease was primarily driven by lower interest expense of $0.7 million and higher interest income of $0.1 million. Also, during 2015 we invested in an early stage entity which is establishing an international marketing channel. Due to the risk of recoverability of this investment, we estimated the fair value of the investment to be zero, recorded a write-down on the investment to fair value and recognized a $0.3 million charge in other expense, which partially offset the decrease to other income (expense).

The following table sets forth selected consolidated statement of operations data for each of the periods indicated.

	Year Ended December 31,

	2014						2013						Period-to-Period Change
				Percentage of Revenue						Percentage of Revenue			Period-to-Period Change
	Amount			Percentage of Revenue			Amount			Percentage of Revenue			Amount			Percentage
	(dollars in thousands)
Revenue	$	110,239			100.0	%	$	83,127			100.0	%	$	27,112			32.6	%
Costs and expenses:
Servicing and support		26,858			24.4			22,718			27.3			4,140			18.2
Technology and content development		22,621			20.5			19,472			23.4			3,149			16.2
Program marketing and sales		65,218			59.2			54,103			65.1			11,115			20.5
General and administrative		23,420			21.2			14,840			17.9			8,580			57.8

Total costs and expenses		138,117			125.3			111,133			133.7			26,984			24.3

Loss from operations		(27,878	)		(25.3	)		(28,006	)		(33.7	)		128			(0.5	)
Other income (expense):
Interest expense		(1,213	)		(1.1	)		27			0.0			(1,240	)		(4,630.7	)
Interest income		92			0.1			26			0.0			66			258.7

Total other income (expense)		(1,121	)		(1.0	)		53			0.0			(1,174	)		(2,238.1	)

Net loss	$	(28,999	)		(26.3	)%	$	(27,953	)		(33.7	)%	$	(1,046	)		3.7

Revenue. Revenue for the year ended December 31, 2014 was $110.2 million, an increase of $27.1 million, or 32.6%, from $83.1 million for the year ended December 31, 2013. Of the increase, $14.3 million was primarily attributable to increases period-over-period full course equivalent enrollments in the client programs that launched in 2013. Increases in full course equivalent enrollments in the four client programs launched prior to January 1, 2013 resulted in higher period-over-period revenues of $9.4 million, while programs that launched in 2014 contributed $2.8 million. In addition, our rebate liability decreased, which resulted in a corresponding increase in our revenue by $0.6 million. The decrease in the rebate liability was the result of some students not certifying their continuing eligibility for the rebate program and fewer of the original cohort of students still being enrolled in the applicable client program and, therefore, a reduction in the rate of rebate liability accrual during the period.

Servicing and support. Servicing and support costs for the year ended December 31, 2014 were $26.8 million, an increase of $4.1 million, or 18.2%, from $22.7 million for the year ended December 31, 2013. This increase was due primarily to a $3.1 million increase in compensation costs, and a $0.5 million increase in travel and related expenses as we increased our headcount in this area by 27% to serve a growing number of students and faculty in existing and new client programs. The remaining increase of $0.5 million was primarily attributable to increased costs associated with student immersions and on-campus initiatives. As a percentage of revenue, servicing and support costs decreased from 27.3% for the year ended December 31, 2013 to 24.4% for the same period of 2014, as client programs continued to mature and greater operational efficiencies were achieved.

Technology and content development. Technology and content development costs for the year ended December 31, 2014 were $22.6 million, an increase of $3.1 million, or 16.2%, from $19.5 million for the year ended December 31, 2013. This was due primarily to a $2.2 million increase in compensation costs (net of capitalized amounts for software and content development) and higher travel and related expenses of $0.3 million, as we increased our headcount in this area by 30% to support additional client program launches and scaling of existing client programs. Further, an increase of $0.9 million resulted from higher depreciation expense associated with our capitalized internal use software and content development costs, primarily as a result of an increase in the number of courses that have been developed for our client programs. Additionally, costs related to equipment expenditures and our cloud-based server usage increased by $0.7 million and $0.7 million, respectively, to support a greater number of our clients' programs. These increases were offset by lower curriculum development and production expenditures of $1.3 million, primarily related to the discontinuation of a pilot program, and other cost savings of $0.4 million. As a percentage of revenue, technology and content development costs decreased from 23.4% for the year ended December 31, 2013 to 20.5% for the same period of 2014, driven by our increased revenue.

Program marketing and sales. Program marketing and sales expense for the year ended December 31, 2014 was $65.2 million, an increase of $11.1 million, or 20.5%, from $54.1 million for the year ended December 31, 2013. This increase was due primarily to a $7.4 million increase in compensation costs, as we increased our headcount in this area by 37% to acquire students for, and drive revenue growth in, new client programs. Additionally, prospective student generation costs increased by a total of $3.5 million to acquire students for our clients' programs, while other program marketing and sales expenses increased by $0.2 million. As a percentage of revenue, program marketing and sales expense decreased from 65.1% for the year ended December 31, 2013 to 59.2% for the same period of 2014, reflecting a higher year-over-year percentage increase in revenue than the corresponding increase in program marketing and sales expense.

General and administrative. General and administrative expense for the year ended December 31, 2014 was $23.4 million, an increase of $8.6 million, or 57.8%, from $14.8 million for the year ended December 31, 2013. This was due primarily to a $5.7 million increase in compensation costs and $0.7 million increase in travel and related expenses, as we increased our headcount in this area by 19% to support our growing business. Additionally, employee education benefit costs increased by $0.8 million, while legal, accounting and other professional fees increased by $0.8 million. Further, insurance costs increased by $0.3 million due to the purchase of directors and officers liability coverage and other general and administrative costs increased by $0.3 million. As a percentage of revenue, general and administrative expense increased from 17.9% for the year ended December 31, 2013 to 21.2% for the same period of 2014.

This management's discussion and analysis of financial condition and results of operations is based on our consolidated financial statements, which have been prepared in accordance with U.S. GAAP.

The preparation of these consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amounts of revenue and expenses during the reported period. In accordance with U.S. GAAP, we base our estimates on historical experience and on various other assumptions we believe to be reasonable under the circumstances. Actual results may differ from these estimates if conditions differ from our assumptions.

While our significant accounting policies are more fully described in Note 2 in the "Notes to Consolidated Financial Statements" included in Part II, Item 8 of this Annual Report on Form 10-K, we believe the following accounting policies are critical to the process of making significant judgments and estimates in preparation of our consolidated financial statements.

We recognize revenue when all of the following conditions are met: (i) persuasive evidence of an arrangement exists, (ii) rendering of services is complete, (iii) fees are fixed or determinable and (iv) collection of fees is reasonably assured.

We primarily derive our revenue from long-term contracts that typically range from 10 to 15 years in length. Under these contracts, we enable access to our cloud-based technology Platform and provide technology-enabled marketing, content development and supporting services to our clients and their faculty and students. We are entitled to a contractually specified percentage of net program proceeds from our clients. These net program proceeds represent gross proceeds billed by our clients to students, less credit card fees and other specified charges we have agreed to exclude in certain of our client contracts. A refund allowance is established for our share of tuition and fees ultimately uncollected by our clients. We also offered rebates to a group of students who enrolled in a specific client program between 2009 and 2011, which we will pay to the student if he or she completes the degree and certain post-graduation work requirements within a specified period of time. These rebates and refunds offset the net program proceeds recognized as revenue. Revenue is recognized ratably over the service period, which we define as the first through the last day of classes for each academic term in a client's program. We invoice our clients based on enrollment reports that are generated by our clients. In some instances, these enrollment reports are received prior to the conclusion of the drop/add period. In such cases, we establish a reserve against revenue, if necessary, based on our estimate of changes in enrollments expected prior to the end of the drop/add period.

We generate substantially all of our revenue from multiple-deliverable contractual arrangements with our clients. Under each of these arrangements, we provide (i) a cloud-based technology Platform that serves as a learning platform for our client's faculty and students and which also enables a comprehensive range of other client functions, (ii) program marketing and application services for student acquisition, (iii) in conjunction with the client's faculty members, content development for courses and (iv) faculty and student support services, including technical field training and support, non-academic student advising and academic progress monitoring.

In order to treat deliverables in a multiple-deliverable contractual arrangement as separate units of accounting, deliverables must have standalone value upon delivery. The services are provided primarily in support of courses offered over our Platform and for students of the online courses delivered over its Platform. Accordingly, we haves determined that no individual deliverable has standalone value upon delivery and, therefore, deliverables within our multiple-deliverable arrangements do not qualify for treatment as separate units of accounting. Accordingly, we consider all deliverables to be a single unit of accounting and recognize revenue from the entire arrangement over the term of the service period.

Advance payments are recorded as deferred revenue until the services are delivered or obligations are met, at which time revenue is recognized. Deferred revenue as of a particular balance sheet date

represents the excess of amounts received as compared to amounts recognized in revenue in the consolidated statements of operations as of the end of the reporting period, and such amounts are reflected as a current liability on our consolidated balance sheets.

Our accounts receivable are stated at realizable value. We extend a minimal amount of uncollateralized credit to our clients. We utilize the allowance method to provide for doubtful accounts based on management's evaluation of the collectability of the amounts due. Our estimate is based on historical collection experience and a review of the current status of accounts receivable. Historically, actual write-offs for uncollectible accounts have not significantly differed from our estimates. As of December 31, 2015 and 2014, we determined that no significant allowances for doubtful accounts were necessary.

We capitalize certain costs associated with internally-developed software, primarily consisting of direct labor associated with creating the software. Software development projects generally include three stages: the preliminary project stage (all costs are expensed as incurred), the application development stage (certain costs are capitalized and certain costs are expensed as incurred) and the post-implementation/operation stage (all costs are expensed as incurred). Costs capitalized in the application development stage include costs of designing the application, coding, integrating our and the university's networks and systems, and the testing of the software. Capitalization of costs requires judgment in determining when a project has reached the application development stage and the period over which we expect to benefit from the use of that software. Once the software is placed in service, these costs are depreciated on a straight-line method over the estimated useful life of the software, which is generally three years.

We work with each of our clients' faculty members to develop and maintain educational content that is delivered to their students through our cloud-based technology Platform. The online content developed jointly by us and our clients consists of subjects chosen and taught by client's faculty members and incorporates references and examples designed to remain relevant over extended periods of time. Online delivery of the content, combined with live, face-to-face instruction, provides us with rapid user feedback, which we use to make ongoing corrections, modifications and improvements to the course content. Our clients retain all intellectual property rights to the developed content, although we retain the rights to the content packaging and delivery mechanisms. Much of our new content development uses proven delivery platforms and is therefore primarily subject-specific in nature. As a result, a significant portion of content development costs qualify for capitalization due to the focus of our development efforts on the unique subject matter of the content. Similar to on-campus programs offered by our clients, the online degree programs that we enable offer numerous courses for each degree. We therefore capitalize our development costs on a course-by-course basis. As students must matriculate into a client program in order to take a course, revenues and identifiable cash flows are also measured at the client program level.

We develop content on a course-by-course basis in conjunction with the faculty for each client program. The clients and their faculty generally provide course outlines in the form of the curriculum, required textbooks, case studies and other reading materials, as well as presentations that are typically used in the on-campus setting. We are then responsible for, and incur all of the expenses related to, the conversion of the materials provided by each client into a format suitable for delivery through our cloud-based technology Platform.

The content development costs that qualify for capitalization are third-party direct costs, such as videography, editing and other services associated with creating digital content. Additionally, we capitalize internal payroll and payroll-related costs incurred to create and produce videos and other digital content utilized in the clients' programs for delivery via our Platform. Capitalization ends when content has been fully developed by both us and the client, at which time amortization of the capitalized content development costs begin. The capitalized costs are recorded on a course-by-course basis and included in capitalized content costs on the consolidated balance sheets. These costs are amortized using the straight-line method over the estimated useful life of the respective capitalized content program, which is generally five years. The estimated useful life corresponds with the planned curriculum refresh rate. This refresh rate is consistent with expected curriculum refresh rates as cited by program faculty members for similar on-campus programs. It is reasonably possible that developed content could be refreshed before the estimated useful lives are complete.

We have issued three types of stock-based awards under our stock plans: stock options, restricted stock units and stock awards. Stock option awards granted to employees, directors and independent contractors are measured at fair value at each grant date. We consider what we believe to be comparable publicly traded companies, discounted free cash flows, and an analysis of our enterprise value in estimating the fair value of our common stock. For awards subject to service-based vesting conditions, we recognize compensation expense on a straight-line basis over the requisite service period of the award, adjusted for estimated forfeitures. Stock options subject to service-based vesting generally vest at various times from the date of the grant, with most stock options vesting in tranches, generally over a period of four years. Restricted stock units subject to service-based vesting generally vest 25% on each anniversary of the grant date over four years.

Some of the stock options granted during the year ended December 31, 2012 were subject to both performance and service-based vesting conditions. We recognize compensation expense using an accelerated recognition method for awards subject to performance-based vesting conditions when it is probable that the performance condition will be achieved.

For the years ended December 31, 2015, 2014 and 2013, we recorded stock-based compensation expense of $12.5 million, $7.5 million and $2.4 million, respectively. Information about the assumptions used in the calculation of stock-based compensation expense is set forth in Note 9 in the "Notes to Consolidated Financial Statements" included in Part II, Item 8 of this Annual Report on Form 10-K.

As of December 31, 2015, unrecognized compensation expense related to unvested options totaled $11.6 million and will be recognized over a weighted-average period of approximately 2.1 years.

As of December 31, 2015, unrecognized compensation expense related to unvested restricted stock units was $14.8 million and will be recognized over a weighted-average period of approximately 2.6 years.

Income taxes are accounted for under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that are included in the financial statements. Under this method, the deferred tax assets and liabilities are determined based on the differences between the financial statement and tax bases of the assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on the deferred tax assets and liabilities is recognized in earnings in the period when the new rate is enacted. Deferred tax assets are subject to periodic recoverability assessments. Valuation allowances are established, when necessary, to reduce deferred tax assets to the amount that more likely than not will be realized. We consider all positive and negative evidence

relating to the realization of the deferred tax assets in assessing the need for a valuation allowance. We currently maintain a full valuation allowance against our deferred tax assets.

We record a liability for unrecognized tax benefits resulting from uncertain tax positions taken or expected to be taken in a tax return. We account for uncertainty in income taxes using a two-step approach for evaluating tax positions. Step one, recognition, occurs when we conclude that a tax position, based solely on its technical merits, is more likely than not to be sustained upon examination. Step two, measurement, determines the amount of benefit that is more likely than not to be realized upon ultimate settlement with a taxing authority that has full knowledge of all relevant information. De-recognition of a tax position that was previously recognized would occur if we subsequently determine that a tax position no longer meets the more likely than not threshold of being sustained. We recognize interest and penalties, if any, related to unrecognized tax benefits as income tax expense in our consolidated statements of operations.

From inception until the closing of our IPO on April 2, 2014, we funded our operations primarily through private placements of redeemable convertible preferred stock. We raised $31.5 million, $26.0 million and $5.0 million from the sale of redeemable convertible preferred stock in 2011, 2012 and 2013, respectively.

On December 31, 2013, we entered into a credit agreement with Comerica Bank for a revolving line of credit, under which we could borrow up to $37.0 million from a syndicate of lenders including Comerica Bank and Square 1 Bank, with a maturity date of December 31, 2015. On January 21, 2014, we borrowed $5.0 million under this line of credit and repaid this borrowing in full on February 18, 2014. On December 31, 2015, we amended our credit agreement with Comerica Bank to reduce the aggregate amount we may borrow to $25.0 million, remove Square 1 Bank as a lender and extend the maturity date through April 29, 2016. There have been no subsequent borrowings under this line of credit.

Under this revolving line of credit, we have the option of borrowing funds subject to (i) a base rate, which is equal to 1.5% plus the greater of Comerica Bank's prime rate, the federal funds rate plus 1% or the 30 day LIBOR plus 1%, or (ii) LIBOR plus 2.5%. For amounts borrowed under the base rate, we may make interest-only payments quarterly, and may prepay such amounts with no penalty. For amounts borrowed under LIBOR, we may make interest-only payments in periods of one, two and three months and will be subject to a prepayment penalty if we repay such borrowed amounts before the end of the interest period.

Borrowings under the line of credit are collateralized by substantially all of our assets. The availability of borrowings under this credit line is subject to our compliance with reporting and financial covenants, including, among other things, that we achieve specified minimum three-month trailing revenue levels during the term of the agreement and specified minimum six-month trailing profitability levels for some of our client programs, measured quarterly. In addition, we are required to maintain a minimum adjusted quick ratio, which measures our short-term liquidity, of at least 1.10 to 1.00. As of December 31, 2015 and 2014, our adjusted quick ratios were 7.90 and 6.45, respectively.

The covenants under the line of credit also place limitations on our ability to incur additional indebtedness or to prepay permitted indebtedness, grant liens on or security interests in our assets, carry out mergers and acquisitions, dispose of assets, declare, make or pay dividends, make capital expenditures in excess of specified amounts, make investments, loans or advances, enter into transactions with our affiliates, amend or modify the terms of our material contracts, or change our fiscal year. If we are not in compliance with the covenants under the line of credit, after any

opportunity to cure such non-compliance, or we otherwise experience an event of default under the line of credit, the lenders may require repayment in full of all principal and interest outstanding. If we fail to repay such amounts, the lenders could foreclose on the assets we have pledged as collateral under the line of credit. We are currently in compliance with all such covenants.

On April 2, 2014, we closed our IPO in which we issued and sold 8,626,377 shares of common stock resulting in net proceeds of $100.3 million. On September 30, 2015, we sold 3,625,000 shares of our common stock to the public, including 525,000 shares sold pursuant to the underwriters' over-allotment option, resulting in net proceeds of $117.1 million. Refer to Note 1 in the "Notes to Consolidated Financial Statements" included in Part II, Item 8 of this Annual Report on Form 10-K for additional details.

The following table summarizes our cash and cash equivalents, accounts receivable, working capital and cash flows for the periods indicated:

Our cash at December 31, 2015 was held for working capital purposes. We do not enter into investments for trading or speculative purposes. We invest any cash in excess of our immediate requirements in investments designed to preserve the principal balance and provide liquidity. Accordingly, our cash is invested primarily in demand deposit accounts that are currently providing only a minimal return.

For the year ended December 31, 2015, net cash used in operating activities was $9.3 million, consisting of a net loss of $26.7 million and a $3.1 million net cash outflow from changes in working capital, partially offset by $20.5 million in non-cash items. Non-cash items consisted of non-cash stock compensation charges of $12.5 million, depreciation and amortization expense of $7.2 million and a $0.8 million charge related to the execution of a new lease agreement for our Maryland headquarters. The decrease in cash resulting from changes in working capital consisted of a $4.0 million increase in prepaid expenses and other current assets, a $3.7 million increase in payments to certain of our university clients in exchange for contract extensions and various marketing and other rights, partially offset by an increase in accrued compensation and related benefits of $4.3 million and other changes of $0.3 million.

For the year ended December 31, 2014, net cash used in operating activities was $11.7 million, consisting of a net loss of $29.0 million, partially offset by $13.1 million in non-cash items and a

$4.2 million net cash inflow from changes in working capital. Non-cash items consisted of non-cash stock compensation charges of $7.5 million and depreciation, amortization expense of $5.6 million. The increase in cash resulting from changes in working capital consisted of an increase in accrued compensation and related benefits of $3.1 million and a $3.0 million increase accrued expenses and other current liabilities primarily due to higher accrued program marketing costs and an increase of $0.7 million related to the change in the fair value of the Series D redeemable convertible preferred stock warrants prior to their conversion to additional paid-in capital upon the closing of the initial public offering, partially offset by decreases in accounts payable of $2.6 million.

For the year ended December 31, 2013, net cash used in operating activities was $15.7 million, consisting of a net loss of $28.0 million, partially offset by $7.6 million in non-cash items and a $4.7 million net cash inflow from changes in working capital. Non-cash items consisted primarily of depreciation and amortization expense of $4.3 million and non-cash stock compensation charges of $2.4 million. The increase in cash resulting from changes in working capital consisted primarily of an increase in accrued compensation and related benefits of $3.9 million and an increase in accrued expenses and other current liabilities of $1.8 million primarily due to higher program marketing cost accruals to support a greater number of client programs, partially offset by an increase in prepaid expenses and other of $1.0 million.

For the year ended December 31, 2015, net cash used in investing activities was $15.9 million, consisting primarily of $9.5 million of expenditures for internally developed software and asynchronous content developed for client programs, $4.1 million related to purchases of property and equipment, $2.0 million related to the purchase of amortizable intangible assets associated with our marketing domain names and $0.3 million related to an investment we made in an early stage entity to test international marketing channels.

For the year ended December 31, 2014, net cash used in investing activities was $11.0 million, consisting primarily of $7.2 million of expenditures for internally developed software and asynchronous content developed for client programs and $3.8 million related to purchases of property and equipment.

For the year ended December 31, 2013, net cash used in investing activities was $7.6 million, consisting primarily of $5.2 million of expenditures for internally developed software and asynchronous content developed for client programs and $2.4 million related to purchases of property and equipment.

For the year ended December 31, 2015, net cash provided by financing activities was $122.0 million, consisting primarily of $117.1 million in net proceeds from our public offering of common stock and $5.3 million in proceeds received from the exercise of stock options, partially offset by $0.4 million of cash used for the payment of employee withholding taxes related to the release of restricted stock units.

For the year ended December 31, 2014, net cash provided by financing activities was $102.6 million, consisting primarily of $100.3 million in net proceeds from our initial public offering. In addition, we received net cash of $2.3 million from the exercise of stock options.

For the year ended December 31, 2013, net cash provided by financing activities was $5.1 million, of which $5.0 million came from the issuance of redeemable convertible preferred stock and $0.3 million came from the exercise of stock options. These proceeds were partially offset by $0.2 million used to repurchase shares of common stock from a former employee.

We have non-cancelable operating leases for our office space, and we are also contractually obligated to make fixed payments to certain of our university clients in exchange for contract extensions and various marketing and other rights.

We have a $25.0 million line of credit from Comerica Bank. On January 21, 2014, we borrowed $5.0 million under this line of credit and repaid this borrowing in full on February 18, 2014. There have been no subsequent borrowings under this line of credit, and therefore, no amounts were outstanding as of December 31, 2015 and 2014.

The following table summarizes our obligations under non-cancelable operating leases and commitments to certain of our clients in exchange for contract extensions and various marketing and other rights at December 31, 2015. Future events could cause actual payments to differ from these amounts.

We have entered into a specific program agreement under which we would be obligated to make future minimum program payments to a client in the event that certain program metrics, partially associated with a program not yet launched, are not achieved. Due to the dependency of this calculation on a future program launch, the amount of any associated contingent payments cannot be reasonably estimated at this time. As we cannot reasonably estimate the amount of the contingent payments, and because we believe any contingent payments under this agreement would likely be immaterial, we have excluded such payments from the table above.

See Note 6 in the "Notes to Consolidated Financial Statements" included in Part II, Item 8 and "Legal Proceedings" contained in Part I, Item 3 of this Annual Report on Form 10-K for additional information regarding contingencies.

We do not have any off-balance sheet arrangements, as defined in Item 303(a)(4)(ii) of Regulation S-K, such as the use of unconsolidated subsidiaries, structured finance, special purpose entities or variable interest entities.

Refer to Note 2 in the "Notes to Consolidated Financial Statements" included in Part II, Item 8 of this Annual Report on Form 10-K for a discussion of FASB's recent accounting pronouncements and their effect on us.

Management of 2U, Inc. is responsible for establishing and maintaining adequate internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)). The Company's internal control over financial reporting is designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with accounting principles generally accepted in the United States of America.

The Company's internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the Company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles and that receipts and expenditures of the Company are being made only in accordance with authorizations of management and directors of the Company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the Company's assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

The Company's management assessed the effectiveness of internal control over financial reporting as of December 31, 2015. In making this assessment, management used the criteria set forth in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in 2013. Management has concluded that, as of December 31, 2015, the Company's internal control over financial reporting was effective based on these criteria.

The effectiveness of the Company's internal control over financial reporting as of December 31, 2015, has been audited by KPMG LLP, an independent registered public accounting firm, as stated in their report included herein.

We have audited the accompanying consolidated balance sheets of 2U, Inc. and subsidiaries (the Company) as of December 31, 2015 and 2014, and the related consolidated statements of operations, changes in stockholders' equity (deficit), and cash flows for each of the years in the three-year period ended December 31, 2015. These consolidated financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of 2U, Inc. and subsidiaries as of December 31, 2015 and 2014, and the results of their operations and their cash flows for each of the years in the three-year period ended December 31, 2015, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), 2U, Inc.'s internal control over financial reporting as of December 31, 2015, based on criteria established in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO), and our report dated March 10, 2016 expressed an unqualified opinion on the effectiveness of the Company's internal control over financial reporting.

We have audited 2U, Inc.'s internal control over financial reporting as of December 31, 2015, based on criteria established in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). 2U, Inc.'s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management's Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company's internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.

In our opinion, 2U, Inc. maintained, in all material respects, effective internal control over financial reporting as of December 31, 2015, based on criteria established in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheets of 2U, Inc. and subsidiaries as of December 31, 2015 and 2014, and the related consolidated statements of operations, changes in stockholders' equity (deficit), and cash flows for each of the years in the three-year period ended December 31, 2015 and our report dated March 10, 2016 expressed an unqualified opinion on those consolidated financial statements.

	December 31,

	2015			2014
Assets
Current assets:
Cash and cash equivalents	$	183,729		$	86,929
Accounts receivable, net		975			350
Advance to clients		1,508			—
Prepaid expenses and other assets		6,695			2,709

Total current assets		192,907			89,988
Property and equipment, net		8,128			6,755
Capitalized content development costs, net		18,121			13,155
Advance to clients, non-current		1,042			1,675
Prepaid expenses, non-current		7,099			643
Other non-current assets		3,744			823

Total assets	$	231,041		$	113,039



Liabilities and stockholders' equity
Current liabilities:
Accounts payable	$	4,544		$	2,293
Accrued compensation and related benefits		13,405			9,088
Accrued expenses and other liabilities		12,039			10,481
Deferred revenue		2,609			1,906

Total current liabilities		32,597			23,768
Non-current liabilities		2,655			1,260

Total liabilities		35,252			25,028
Commitments and contingencies (Note 6)
Stockholders' equity:
Preferred stock, $0.001 par value, 5,000,000 shares authorized, 0 shares issued and outstanding as of December 31, 2015 and 2014		—			—
Common stock, $0.001 par value, 200,000,000 shares authorized, 45,776,455 shares issued and outstanding as of December 31, 2015; 40,735,069 shares issued and outstanding as of December 31, 2014		46			41
Additional paid-in capital		351,324			216,818
Accumulated deficit		(155,581	)		(128,848	)

Total stockholders' equity		195,789			88,011

Total liabilities and stockholders' equity	$	231,041		$	113,039

	Year Ended December 31,

	2015			2014			2013
Revenue	$	150,194		$	110,239		$	83,127
Costs and expenses:
Servicing and support		32,047			26,858			22,718
Technology and content development		27,211			22,621			19,472
Program marketing and sales		82,911			65,218			54,103
General and administrative		34,123			23,420			14,840

Total costs and expenses		176,292			138,117			111,133

Loss from operations		(26,098	)		(27,878	)		(28,006	)
Other income (expense):
Interest expense		(552	)		(1,213	)		27
Interest income		167			92			26
Other		(250	)		—			—

Total other income (expense)		(635	)		(1,121	)		53

Loss before income taxes		(26,733	)		(28,999	)		(27,953	)
Income tax expense		—			—			—

Net loss		(26,733	)		(28,999	)		(27,953	)
Preferred stock accretion		—			(89	)		(347	)

Net loss attributable to holders of common stock	$	(26,733	)	$	(29,088	)	$	(28,300	)



Net loss per share attributable to holders of common stock, basic and diluted	$	(0.63	)	$	(0.91	)	$	(3.81	)



Weighted-average shares of common stock outstanding, basic and diluted		42,420,356			32,075,107			7,432,055

	Common Stock

	Common Stock					Additional Paid-In Capital			Accumulated Deficit			Total Stockholders' Equity (Deficit)
	Shares			Amount		Additional Paid-In Capital			Accumulated Deficit			Total Stockholders' Equity (Deficit)
Balance, December 31, 2012		7,386,133		$	7	$	5,483		$	(71,786	)	$	(66,296	)
Exercise of stock options		290,604			1		324			—			325
Repurchase of common shares		(47,604	)		—		(69	)		(110	)		(179	)
Accretion of issuance costs on redeemable convertible preferred stock		—			—		(347	)		—			(347	)
Stock-based compensation expense		—			—		2,426			—			2,426
Net loss		—			—		—			(27,953	)		(27,953	)

Balance, December 31, 2013		7,629,133			8		7,817			(99,849	)		(92,024	)

Exercise of stock options		940,642			1		2,281			—			2,282
Grant of common stock		5,000			—		55			—			55
Accretion of issuance costs on redeemable convertible preferred stock		—			—		(89	)		—			(89	)
Stock-based compensation expense		—			—		7,527			—			7,527
Conversion of redeemable convertible preferred stock to common stock		23,501,208			23		98,113			—			98,136
Conversion of Series D warrants to common stock warrants		—			—		821			—			821
Issuance of common stock from initial public offering, net of issuance costs		8,626,377			9		100,293			—			100,302
Exercise of warrants to purchase common stock		32,709			—		—			—			—
Net loss		—			—		—			(28,999	)		(28,999	)

Balance, December 31, 2014		40,735,069			41		216,818			(128,848	)		88,011

Exercise of stock options		1,141,731			1		5,335			—			5,336
Issuance of common stock in connection with settlement of restricted stock units, net of withholdings		248,088			—		(436	)		—			(436	)
Issuance of common stock, net of issuance costs		3,625,000			4		117,108			—			117,112
Issuance of common stock award		26,567			—		750			—			750
Stock-based compensation expense		—			—		11,749			—			11,749
Net loss		—			—		—			(26,733	)		(26,733	)

Balance, December 31, 2015		45,776,455		$	46	$	351,324		$	(155,581	)	$	195,789

	Year Ended December 31,

	2015			2014			2013
Cash flows from operating activities
Net loss	$	(26,733	)	$	(28,999	)	$	(27,953	)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization		7,220			5,572			4,335
Stock-based compensation expense		12,499			7,527			2,426
Charge related to execution of new lease agreement		884			—			—
Loss on impairment and disposal of long-lived assets		—			—			811
Changes in operating assets and liabilities:
(Increase) decrease in accounts receivable, net		(625	)		1,485			(1,587	)
(Increase) decrease in advance to clients		(875	)		(1,094	)		415
Increase in prepaid expenses and other current assets		(4,001	)		(374	)		(939	)
Increase (decrease) in accounts payable		2,251			(2,565	)		1,894
Increase in accrued compensation and related benefits		4,317			3,123			3,924
Increase in accrued expenses and other liabilities		1,216			2,978			1,762
Increase in deferred revenue		703			640			530
Increase in payments to clients		(3,664	)		(826	)		—
(Increase) decrease in other assets and other liabilities, net		(2,709	)		153			(1,267	)
Other		250			695			(33	)

Net cash used in operating activities		(9,267	)		(11,685	)		(15,682	)
Cash flows from investing activities
Purchases of property and equipment		(4,096	)		(3,803	)		(2,367	)
Capitalized content development cost expenditures		(9,518	)		(7,150	)		(5,213	)
Other		(2,331	)		(29	)		(56	)

Net cash used in investing activities		(15,945	)		(10,982	)		(7,636	)
Cash flows from financing activities
Proceeds from issuance of common stock, net of offering costs		117,112			100,302			—
Proceeds from exercise of stock options		5,336			2,282			325
Proceeds from revolving line of credit		—			5,000			—
Payment on revolving line of credit		—			(5,000	)		—
Proceeds from issuance of Series D redeemable convertible preferred stock, net of issuance costs		—			—			4,994
Other		(436	)		—			(179	)

Net cash provided by financing activities		122,012			102,584			5,140

Net increase (decrease) in cash and cash equivalents		96,800			79,917			(18,178	)
Cash and cash equivalents, beginning of period		86,929			7,012			25,190

Cash and cash equivalents, end of period	$	183,729		$	86,929		$	7,012



Supplemental disclosure of non-cash investing and financing activities
Accretion of issuance costs on redeemable convertible preferred stock	$	—		$	89		$	347
Accrued capital expenditures		415			557			216
Deferred offering costs included in accounts payable and accrued expenses		—			—			1,057
Issuance of Series D redeemable convertible preferred stock warrant in connection with revolving line of credit		—			—			107
Common stock granted in exchange for consulting services received		—			55			—

2U, Inc. (the "Company") was incorporated as 2Tor Inc. in the State of Delaware in April 2008 and changed its name to 2U, Inc. on October 11, 2012. Under long-term agreements, the Company provides an integrated solution comprised of cloud-based software-as-a-service ("SaaS"), fused with technology-enabled services (together, the "Platform"), that allows leading colleges and universities to deliver high quality online degree programs, extending the universities' reach and distinguishing their brands. The Company's SaaS technology consists of (i) a comprehensive learning environment ("Online Campus"), which acts as the hub for all student and faculty academic and social interaction, and (ii) operations applications, which provide the content management, admissions application processing, customer relationship management and other functionality necessary to effectively operate the Company's clients' programs. The Company also provides a suite of technology-enabled services that support the complete lifecycle of a higher education program, including attracting students, advising prospective students through the admissions application process, providing technical, success coaching and other support, facilitating accessibility to individuals with disabilities, and facilitating in-program field placements.

On April 2, 2014, the Company closed the initial public offering of its common stock ("IPO") in which the Company issued and sold 8,626,377 shares of its common stock, including the partial exercise of the underwriters' over-allotment option, at an issuance price of $13.00 per share. The Company received net proceeds of $100.3 million after deducting underwriting discounts and commissions of $7.8 million and other offering expenses of approximately $4.0 million. Upon the closing of the IPO, all shares of the then-outstanding redeemable convertible preferred stock automatically converted into an aggregate of 23,501,208 shares of common stock, based on the shares of redeemable convertible preferred stock outstanding as of April 2, 2014. In addition, the outstanding Series D warrants automatically converted into warrants to purchase common stock, and the preferred stock warrant liability of $0.8 million as of April 2, 2014 was reclassified to additional paid-in capital.

On September 30, 2015, the Company sold 3,625,000 shares of its common stock to the public, including 525,000 shares sold pursuant to the underwriters' over-allotment option, at an issuance price of $34.00 per share. The Company received net proceeds of $117.1 million after deducting underwriting discounts and commissions of $5.5 million and other offering expenses of approximately $0.6 million.

The accompanying consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries and have been prepared in accordance with United States generally accepted accounting principles ("U.S. GAAP") and include the assets, liabilities, results of operations and cash flows of the Company. All significant intercompany accounts and transactions have been eliminated in consolidation.

Certain prior period amounts in the Consolidated Balance Sheets and Consolidated Statements of Cash Flows have been reclassified to conform to the current period's presentation.

The preparation of financial statements in accordance with U.S. GAAP requires management to make certain estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. On an ongoing basis, the Company evaluates its estimates, including those related to the useful lives of long-lived assets, fair value measurement and income taxes, among others. The Company bases its estimates and assumptions on historical experience and on various other factors that it believes to be reasonable under the circumstances. Due to the inherent uncertainty involved in making estimates, actual results reported in future periods may be affected by changes in those estimates. The Company evaluates its estimates and assumptions on an ongoing basis.

Cash and cash equivalents consist of bank checking accounts, money market accounts, investments in certificates of deposit that mature in less than three months and highly liquid marketable securities with maturities at the time of purchase of three months or less.

Financial instruments that subject the Company to significant concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. All of the Company's cash is held at financial institutions that management believes to be of high credit quality. The Company's bank accounts exceed federally insured limits at times. The Company has not experienced any losses on cash to date. To manage accounts receivable risk, the Company maintains an allowance for doubtful accounts, if needed.

During each of the years ended December 31, 2015, 2014 and 2013, three clients accounted for more than 10% of the Company's revenue, as follows:

Additionally, the Company's largest client accounted for 7% and 35% of the Company's accounts receivable balance as of December 31, 2015 and 2014, respectively. Further, one additional client accounted for more than 10% of the Company's accounts receivable balance as of December 31, 2015, while two additional clients accounted for more than 10% of the Company's accounts receivable balance as of December 31, 2014.

Accounts receivable are stated at realizable value. The Company extends a minimal amount of uncollateralized credit to its clients. The Company utilizes the allowance method to provide for doubtful accounts based on management's evaluation of the collectability of the amounts due. The Company's estimate is based on historical collection experience and a review of the current status of accounts receivable. Historically, actual write-offs for uncollectible accounts have not significantly differed from the Company's estimates. As of December 31, 2015 and 2014, the Company determined that no significant allowances for doubtful accounts were necessary.

The carrying amounts of certain assets and liabilities, including cash and cash equivalents, accounts receivable, accounts payable and accrued expenses and other current liabilities, approximate their respective fair values due to their short-term nature.

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date, based on the Company's principal or, in the absence of a principal, most advantageous, market for the specific asset or liability.

U.S. GAAP provides for a three-tier fair value hierarchy to classify and disclose all assets and liabilities measured at fair value on a recurring basis, as well as assets and liabilities measured at fair value on a non-recurring basis, in periods subsequent to their initial measurement. The fair value hierarchy requires the Company to use observable inputs when available, and to minimize the use of unobservable inputs when determining fair value. The three tiers are defined as follows:

The Company evaluates its financial assets and liabilities subject to fair value measurements on a recurring basis to determine the appropriate level in which to classify them for each reporting period. This determination requires significant judgments to be made. The Company had Level 1 money market investments of $155.6 million and $82.9 million included in cash and cash equivalents as of December 31, 2015 and 2014, respectively.

The Company is contractually obligated to pay advances to certain of its clients in order to fund start-up expenses of the program on behalf of the client. Advances to clients are stated at realizable value. The advances are repaid to the Company on terms as required in the respective agreements. The

Company recognizes imputed interest income on these advance payments when there is a significant amount of imputed interest.

Property and equipment is stated at cost less accumulated depreciation and amortization. Computer software is included in property and equipment and consists of internally-developed software. Expenditures for major additions, construction and improvements are capitalized. Depreciation and amortization is expensed using the straight-line method over the estimated useful lives of the related assets, which range from three to five years for computer hardware and five to seven years for furniture and office equipment. Leasehold improvements are depreciated on a straight-line basis over the lesser of the remaining term of the leased facility or the estimated useful life of the improvement, which ranges from four to ten years. Useful lives of significant assets are periodically reviewed and adjusted prospectively to reflect the Company's current estimates of the respective assets' expected utility. Repair and maintenance costs are expensed as incurred.

The Company capitalizes certain costs associated with internally-developed software, primarily consisting of direct labor associated with creating the software. Software development projects generally include three stages: the preliminary project stage (all costs are expensed as incurred), the application development stage (certain costs are capitalized and certain costs are expensed as incurred) and the post-implementation/operation stage (all costs are expensed as incurred). Costs capitalized in the application development stage include costs of designing the application, coding, integrating the Company's and the university's networks and systems, and the testing of the software. Capitalization of costs requires judgment in determining when a project has reached the application development stage and the period over which the Company expects to benefit from the use of that software. Once the software is placed in service, these costs are depreciated on the straight-line method over the estimated useful life of the software, which is generally three years.

The Company works with each client's faculty members to develop and maintain educational content that is delivered to their students through Online Campus. The online content developed jointly by the Company and its clients consists of subjects chosen and taught by clients' faculty members and incorporates references and examples designed to remain relevant over extended periods of time. Online delivery of the content, combined with live, face-to-face instruction, provides the Company with rapid user feedback that it uses to make ongoing corrections, modifications and improvements to the course content. The Company's clients retain all intellectual property rights to the developed content, although the Company retains the rights to the content packaging and delivery mechanisms. Much of the Company's new content development uses proven delivery platforms and is therefore primarily subject-specific in nature. As a result, a significant portion of content development costs qualify for capitalization due to the focus of the Company's development efforts on the unique subject matter of the content. Similar to on-campus programs offered by the Company's clients, the online degree programs enabled by the Company offer numerous courses for each degree. The Company therefore capitalizes its development costs on a course-by-course basis. As students must matriculate into a client

program in order to take a course, revenues and identifiable cash flows are also measured at the client program level.

The Company develops content on a course-by-course basis in conjunction with the faculty for each client program. The clients and their faculty generally provide course outlines in the form of the curriculum, required textbooks, case studies and other reading materials, as well as presentations that are typically used in the on-campus setting. The Company is then responsible for, and incurs all of the expenses related to, the conversion of the materials provided by each client into a format suitable for delivery through Online Campus.

The content development costs that qualify for capitalization are third-party direct costs, such as videography, editing and other services associated with creating digital content. Additionally, the Company capitalizes internal payroll and payroll-related costs incurred to create and produce videos and other digital content utilized in the clients' programs for delivery via Online Campus. Capitalization ends when content has been fully developed by both the Company and the client, at which time amortization of the capitalized content development costs begins. The capitalized costs are recorded on a course-by-course basis and included in capitalized content costs on the consolidated balance sheets. These costs are amortized using the straight-line method over the estimated useful life of the respective capitalized content program, which is generally five years. The estimated useful life corresponds with the Company's planned curriculum refresh rate. This refresh rate is consistent with expected curriculum refresh rates as cited by program faculty members for similar on-campus programs. It is reasonably possible that developed content could be refreshed before the estimated useful lives are complete or be expensed immediately in the event that the development of a course is discontinued prior to launch.

The Company records amounts paid more than 12 months in advance of being incurred as prepaid expenses, non-current. In addition, the Company has certain other assets that are long-term in nature, which are classified as other non-current assets. These consist primarily of amortizable intangible assets associated with the Company's marketing websites and related domain names and security deposits on leased office facilities.

The Company reviews long-lived assets, which consist of property and equipment, capitalized content development costs and acquired finite-lived intangible assets, for impairment whenever events or changes in circumstances indicate the carrying value of an asset may not be recoverable. Recoverability of a long-lived asset is measured by a comparison of the carrying value of an asset or asset group to the future undiscounted net cash flows expected to be generated by that asset or asset group. If such assets are not recoverable, the impairment to be recognized is measured by the amount by which the carrying value of an asset exceeds the estimated fair value (discounted cash flow) of the asset or asset group. In order to assess the recoverability of the capitalized content development costs, the costs are grouped by program, which is the lowest level of independent cash flows. The Company's impairment analysis is based upon forecasted financial and operational results. The actual results could vary from the Company's forecasts, especially in relation to recently launched programs. For the years ended December 31, 2015 and 2014, no impairment of long-lived assets was deemed to have occurred.

In December 2013, the Company evaluated the recoverability of its capitalized assets and determined that the estimated carrying value of one asset group exceeded its net realizable value.

The Company recognizes revenue when all of the following conditions are met: (i) persuasive evidence of an arrangement exists, (ii) rendering of services is complete, (iii) fees are fixed or determinable and (iv) collection of fees is reasonably assured.

The Company primarily derives its revenue from long-term contracts that typically range from 10 to 15 years in length. Under these contracts, the Company enables access to its Platform to its clients and their faculty and students. The Company is entitled to a contractually specified percentage of net program proceeds from its clients. These net program proceeds represent gross proceeds billed by clients to students, less credit card fees and other specified charges the Company has agreed to exclude in certain of its client contracts.

The Company generates substantially all of its revenue from multiple-deliverable contractual arrangements with its clients. Under each of these arrangements, the Company provides (i) access to Online Campus, which serves as a learning platform for its client's faculty and students and which also enables a comprehensive range of other client functions, (ii) access to operations applications which provide the content management, admissions application processing, customer relationship management, and other functionality necessary to effectively operate the Company's clients' programs and (iii) technology-enabled services that support the complete lifecycle of a higher education program, including attracting students, advising prospective students through the admissions application process, providing technical, success coaching and other support, facilitating accessibility to individuals with disabilities, and facilitating in-program field placements.

In order to treat deliverables in a multiple-deliverable contractual arrangement as separate units of accounting, deliverables must have standalone value upon delivery. The technology-enabled services within the Platform are provided primarily in support of programs delivered through Online Campus, and for students of the programs delivered through Online Campus. Accordingly, the Company has determined that no individual deliverable has standalone value upon delivery and, therefore, deliverables within the Company's multiple-deliverable arrangements do not qualify for treatment as separate units of accounting. Accordingly, the Company considers all deliverables to be a single unit of accounting and recognizes revenue from the entire arrangement over the term of the service period.

Advance payments are recorded as deferred revenue until services are delivered or obligations are met, at which time revenue is recognized. Deferred revenue as of a particular balance sheet date represents the excess of amounts received as compared to amounts recognized in revenue in the consolidated statements of operations as of the end of the reporting period, and such amounts are reflected as a current liability on the Company's consolidated balance sheets.

The majority of the marketing and sales costs incurred by the Company are directly related to acquiring students for its clients' programs, with lesser amounts related to the Company's own marketing and advertising efforts. For the years ended December 31, 2015, 2014 and 2013, expenses related to the Company's own marketing and advertising efforts were not material. All such costs are

expensed as incurred and reported in program marketing and sales expense in the Company's consolidated statements of operations.

The Company leases all of its office facilities and enters into various other lease agreements in conducting its business. At the inception of each lease, the Company evaluates the lease agreement to determine whether the lease is an operating or capital lease. Additionally, many of the Company's lease agreements contain renewal options, tenant improvement allowances, rent holiday and/or rent escalation clauses. When such items are included in a lease agreement, the Company records a deferred rent asset or liability in the Consolidated Financial Statements, and records these items in rent expense evenly over the term of the lease.

The Company is also required to make additional payments under operating lease terms for taxes, insurance and other operating expenses incurred during the operating lease period; such items are expensed as incurred. Rental deposits are included as other assets in the Consolidated Financial Statements for lease agreements the require payments in advance or deposits held for security that are refundable, less any damages, at the end of the respective lease.

The Company accounts for stock-based compensation awards based on the fair value of the award as of the grant date. For awards subject to service-based vesting conditions, the Company recognizes stock-based compensation expense on a straight-line basis over the awards' requisite service period, adjusted for estimated forfeitures. For awards subject to both performance and service-based vesting conditions, the Company recognizes stock-based compensation expense using an accelerated recognition method when it is probable that the performance condition will be achieved.

The Company uses the two-class method to compute net loss per share of common stock because the Company has issued securities, other than common stock, that contractually entitle the holders to participate in dividends and earnings of the Company. The two-class method requires earnings for the period to be allocated between common stock and participating securities based upon their respective rights to receive distributed and undistributed earnings. Holders of each series of the Company's redeemable convertible preferred stock (prior to their conversion to common stock) were entitled to participate in distributions, when and if declared by the board of directors, that are made to holders of common stock, and as a result are considered participating securities.

Under the two-class method, for periods with net income, basic net income per share of common stock is computed by dividing the net income attributable to holders of common stock by the weighted-average number of shares of common stock outstanding during the period. Net income attributable to holders of common stock is computed by subtracting from net income the portion of current year earnings that the participating securities would have been entitled to receive pursuant to their dividend rights had all of the year's earnings been distributed. No such adjustment to earnings is made during periods with a net loss, as the holders of the participating securities have no obligation to fund losses. Diluted net loss per share of common stock is computed under the two-class method by using the weighted-average number of shares of common stock outstanding, plus, for periods with net income

attributable to holders of common stock, the potential dilutive effects of stock options and warrants. In addition, the Company analyzes the potential dilutive effect of the outstanding participating securities under the "if-converted" method when calculating diluted earnings per share, in which it is assumed that the outstanding participating securities convert into common stock at the beginning of the period. The Company reports the more dilutive of the approaches (two-class or "if-converted") as its diluted net income per share during the period. Due to net losses for the years ended December 31, 2015, 2014 and 2013, basic and diluted loss per share were the same, as the effect of potentially dilutive securities would have been anti-dilutive.

The Company's net loss equals comprehensive loss for all periods presented as the Company has no material components of other comprehensive income.

In November 2015, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2015-17, Balance Sheet Classification of Deferred Taxes. The ASU eliminates the requirement to classify deferred tax assets and liabilities between current and noncurrent. The ASU requires classification of all deferred tax asset and liability balances as noncurrent. The amendments in this ASU are effective for fiscal years beginning after December 15, 2016, with early adoption permitted. Adoption of the ASU is either retrospective to each prior period presented, or prospective. As of December 31, 2015, the Company early adopted the ASU prospectively. Adoption of this standard did not have a material impact on the Company's consolidated financial position and related disclosures.

In April 2015, the FASB issued ASU No. 2015-05, Intangibles—Goodwill and Other—Internal-Use Software. The ASU provides guidance to customers in a cloud computing arrangement to determine whether the arrangement includes a software license. When a cloud computing arrangement includes a software license, the customer is required to account for the license element of the arrangement consistent with the acquisition of other software licenses. The amendments in this ASU are effective for fiscal years beginning after December 15, 2015. The Company is currently evaluating the effect that the standard will have on its consolidated financial statements and related disclosures.

In April 2015, the FASB issued ASU No. 2015-03, Interest—Imputation of Interest. The ASU simplifies the presentation of debt issuance costs by requiring that such costs be presented in the consolidated balance sheets as a direct deduction from the carrying value of the associated debt instrument, consistent with debt discounts. Subsequent to the issuance of this ASU, the SEC staff announced that the presentation of debt issuance costs associated with line-of-credit arrangements may be presented as an asset. This announcement was codified by the FASB in ASU 2015-15. The amendments in these ASUs are effective for fiscal years beginning after December 15, 2015. Adoption of this standard will not have a material impact on the Company's consolidated financial position.

In January 2015, the FASB issued ASU No. 2015-01, Income Statement—Extraordinary and Unusual Items. The ASU simplifies income statement presentation by eliminating the concept of extraordinary items. The amendments in this ASU are effective for fiscal periods beginning after December 15, 2015. The Company does not expect the new standard to have a significant impact on its ongoing financial reporting.

In August 2014, the FASB issued ASU No. 2014-15, Disclosure of Uncertainties about an Entity's Ability to Continue as a Going Concern. The ASU requires that an entity's management evaluate whether there are conditions or events that raise substantial doubt about the entity's ability to continue as a going concern within one year after the date that the financial statements are issued. The amendments in this ASU are effective for annual reporting periods ending after December 15, 2016. The Company does not expect the new standard to have a significant impact on its reporting process.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The ASU will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. In July 2015, the FASB deferred by one year the mandatory effective date of this ASU from January 1, 2017 to January 1, 2018. Early application is permitted, but not prior to the original effective date of January 1, 2017. The standard permits the use of either the retrospective or cumulative effect transition method. The Company is currently evaluating the effect that this standard will have on its consolidated financial statements and related disclosures. The Company has not yet selected a transition method nor has it determined the effect of the standard on its ongoing financial reporting.

Amortization expense related to the capitalized internally-developed software was $1.6 million, $1.4 million and $1.5 million for the years ended December 31, 2015, 2014 and 2013, respectively, and is included in technology and content development costs in the accompanying consolidated statements of operations. The net book value of capitalized internally-developed software was $4.5 million and $3.3 million at December 31, 2015 and 2014, respectively. Depreciation and amortization expense of property and equipment (inclusive of amortization expense related to the capitalized internally-developed software) was $2.7 million, $2.4 million and $2.1 million for the years ended December 31, 2015, 2014 and 2013, respectively.

As of December 31, 2015, the estimated future depreciation and amortization expense for property and equipment is as follows (in thousands):

The Company recorded amortization expense related to capitalized content development costs of $4.5 million, $3.2 million and $2.2 million for the years ended December 31, 2015, 2014 and 2013, respectively. The Company performed an impairment assessment in the fourth quarter of 2013 and determined that certain capitalized content development costs were not recoverable, and recorded an impairment charge of $0.8 million in that period.

As of December 31, 2015, the estimated future amortization expense for capitalized content development costs is as follows (in thousands):

On December 31, 2013, the Company entered into a credit agreement for a revolving line of credit with an aggregate commitment not to exceed $37.0 million. On January 21, 2014, the Company borrowed $5.0 million under this line of credit and repaid this borrowing in full on February 18, 2014. There have been no subsequent borrowings under this line of credit and therefore, no amounts were outstanding as of December 31, 2015 or December 31, 2014. On December 31, 2015, the Company amended this credit agreement to reduce the aggregate amount it may borrow to $25.0 million and extend the maturity date through April 29, 2016.

Under this revolving line of credit, the Company has the option of borrowing funds subject to (i) a base rate, which is equal to 1.5% plus the greater of Comerica Bank's prime rate, the federal funds rate plus 1% or the 30 day LIBOR plus 1%, or (ii) LIBOR plus 2.5%. For amounts borrowed under the base rate, the Company may make interest-only payments quarterly, and may prepay such amounts with no penalty. For amounts borrowed under LIBOR, the Company makes interest-only payments in periods of one, two and three months and will be subject to a prepayment penalty if such borrowed amounts are repaid before the end of the interest period.

Borrowings under the line of credit are collateralized by substantially all of the Company's assets. The availability of borrowings under this credit line is subject to compliance with reporting and financial covenants, including, among other things, that the Company achieves specified minimum three-month trailing revenue levels during the term of the agreement and specified minimum six-month trailing profitability levels for some client programs, measured quarterly. In addition, the Company is required to maintain a minimum adjusted quick ratio, which measures short-term liquidity, of at least 1.10 to 1.00. As of December 31, 2015 and 2014, the Company's adjusted quick ratios were 7.90 and 6.45, respectively.

The covenants under the line of credit also place limitations on the Company's ability to incur additional indebtedness or to prepay permitted indebtedness, grant liens on or security interests in its assets, carry out mergers and acquisitions, dispose of assets, declare, make or pay dividends, make capital expenditures in excess of specified amounts, make investments, loans or advances, enter into transactions with affiliates, amend or modify the terms of material contracts, or change its fiscal year. If the Company is not in compliance with the covenants under the line of credit, after any opportunity to cure such non-compliance, or it otherwise experiences an event of default under the line of credit, the lenders may require repayment in full of all principal and interest outstanding. If the Company fails to repay such amounts, the lenders could foreclose on the assets pledged as collateral under the line of credit. The Company is currently in compliance with all such covenants.

From time to time, the Company may become involved in legal proceedings or other contingencies in the ordinary course of its business. The Company is not presently involved in any legal proceeding or other contingency that, if determined adversely to it, would individually or in the aggregate have a material adverse effect on its business, operating results, financial condition or cash flows. Accordingly, the Company does not believe that there is a reasonable possibility that a material loss exceeding amounts already recognized may have been incurred as of the date of the balance sheets presented herein.

Certain of the agreements entered into between the Company and its clients require the Company to commit to meet certain staffing and spending investment thresholds related to program marketing and sales activities. In addition, certain of the agreements require the Company to invest up to agreed upon levels in marketing the programs to achieve specified program performance. The Company believes it is currently in compliance with all such commitments.

The Company leases office facilities under non-cancelable operating leases in Maryland, New York, California, Colorado, North Carolina, Virginia and Hong Kong. The Company also leases office equipment under non-cancelable leases. As of December 31, 2015, the future minimum lease payments (net of aggregate expected sublease payments of $0.3 million) were as follows (in thousands):

The future minimum lease payments due under non-cancelable operating lease arrangements contain fixed rent increases over the term of the lease. Rent expense on these operating leases is recognized over the term of the lease on a straight-line basis. The excess of rent expense over future minimum lease payments due has been reported in non-current liabilities in the accompanying consolidated balance sheets. The deferred rent liability related to these leases totaled $0.6 million and $0.5 million as of December 31, 2015 and 2014, respectively.

Total rent expense from non-cancelable operating lease agreements (net of sublease income of $0.3 million, $0.3 million and $0.3 million) was $3.5 million, $2.6 million and $2.1 million for the years ended December 31, 2015, 2014 and 2013, respectively.

The Company is contractually obligated to make fixed payments to certain of its clients in exchange for contract extensions and various marketing and other rights. As of December 31, 2015, the future minimum fixed payments to the Company's clients in exchange for contract extensions and various marketing and other rights were as follows (in thousands):

The Company has entered into a specific program agreement under which it would be obligated to make future minimum program payments to a client in the event that certain program metrics, partially associated with a program not yet launched, are not achieved. Due to the dependency of this

calculation on a future program launch, the amount of any associated contingent payments cannot be reasonably estimated at this time. As the Company cannot reasonably estimate the amount of the contingent payments, and because it believes any contingent payments under this agreement would likely be immaterial, the Company has excluded such payments from the table above.

The components of loss before income taxes for the years ended December 31 were as follows:

A reconciliation between the Company's statutory federal income tax rate and the effective tax rate for the years ended December 31, is as follows:

The significant components of the Company's deferred tax assets and liabilities as of December 31 are as follows:

	2015			2014

	(in thousands)
Deferred tax assets:
Accrued expenses and other	$	1,899		$	1,054
Accrued compensation and related benefits		3,306			2,502
Rebate reserve		167			264
Deferred rent		282			212
Stock-based compensation		4,971			2,782
Net operating loss carryforwards		54,967			46,264
Valuation allowance		(54,739	)		(44,309	)

Total deferred tax assets	$	10,853		$	8,769



Deferred tax liabilities:
Other expenses	$	(875	)	$	(1,344	)
Capitalized content development costs		(7,583	)		(5,439	)
Capitalized software development costs		(1,886	)		(1,346	)
Property and equipment		(509	)		(640	)

Total deferred tax liabilities	$	(10,853	)	$	(8,769	)

Net deferred tax assets/liabilities	$	—		$	—

Deferred tax valuation allowances and changes in deferred tax valuation allowances are as follows:

Income taxes are accounted for under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that are included in the financial statements. Deferred tax assets are subject to periodic recoverability assessments. Recognition of deferred tax assets is appropriate only if the likelihood of realization of such assets is more likely than not to occur. At December 31, 2015, the Company had a federal net operating loss ("NOL") carryforward of approximately $161.7 million, which expires between 2029 and 2035. The gross amount of the state NOL carryforwards is equal to or less than the federal NOL carryforwards and expires over various periods based on individual state tax laws. A full valuation allowance has been established to offset the net deferred tax assets. The total increase in the valuation allowance was $10.4 million for the year ended December 31, 2015, as the Company has not generated taxable income since inception and does not have sufficient deferred tax liabilities to recover the deferred tax assets. The utilization of the NOL carryforwards to reduce future income taxes will depend

on the Company's ability to generate sufficient taxable income prior to the expiration of the NOL carryforwards. In addition, a certain portion of the above NOL carryforwards may be subject to Internal Revenue Code section 382 limitations, which may limit their future use.

The Company completed an analysis of the stock ownership changes through September 30, 2015, and determined that there has not been an ownership change prior to that date. However, the Company has not completed an analysis to determine what, if any, impact any ownership change after September 30, 2015 has had on the ability to utilize NOL carryforwards. The Company has experienced a number of transactions subsequent to September 30, 2015, which could lead to a limitation of its NOL carryforwards under section 382 of the Internal Revenue Code. The Company intends to complete a study through December 31, 2015, regarding this limitation in the next twelve months. It is reasonably possible that the results of the study will reduce the reported NOL carryforwards and other deferred tax assets.

The Company applies the provisions of ASC 740-10 to uncertain tax positions. ASC 740-10 clarifies accounting for income taxes by prescribing a minimum probability threshold that a tax position must meet before a financial statement benefit is recognized. If the probability for sustaining a tax position is greater than 50%, then the tax position is warranted and recognition should be at the highest amount which would be expected to be realized upon settlement. The Company did not identify any tax positions that would be required for inclusion in the financial statements. As of December 31, 2015, the Company had not made any changes to its tax positions since December 31, 2014.

The Company recognizes interest and penalties related to uncertain tax positions in income tax expense. As of December 31, 2015 and 2014, the Company had no accrued interest or penalties related to uncertain tax positions.

The Company has analyzed its filing positions in all significant federal, state and foreign jurisdictions where it is required to file income tax returns, as well as open tax years in these jurisdictions. With few exceptions, the Company is no longer subject to U.S. federal, state and local tax examinations by tax authorities for the years prior to 2012, though the NOL carryforwards can be adjusted upon audit and could impact taxes owed in open tax years. No income tax returns are currently under examination by the taxing authorities.

Immediately upon the closing of the IPO on April 2, 2014, the Company's certificate of incorporation was amended and restated to, among other things, authorize 200,000,000 shares of common stock and 5,000,000 shares of preferred stock.

On September 30, 2015, the Company sold 3,625,000 shares of its common stock to the public, including 525,000 shares sold pursuant to the underwriters' over-allotment option. The Company received net proceeds of $117.1 million, which the Company intends to use for general corporate purposes.

As of December 31, 2015, the Company was authorized to issue 205,000,000 total shares of capital stock, consisting of 200,000,000 shares of common stock and 5,000,000 shares of preferred stock. At

December 31, 2015, the Company had reserved a total of 8,423,261 of its authorized shares of common stock for future issuance as follows:

The Company provides equity-based compensation awards to employees, independent contractors and directors as an effective means for attracting, retaining and motivating such individuals. The Company maintains two share-based compensation plans: the 2014 Equity Incentive Plan (the "2014 Plan") and the 2008 Stock Incentive Plan (the "2008 Plan"). Upon the effective date of the 2014 Plan in January 2014, the Company ceased using the 2008 Plan to grant new equity awards, and began using the 2014 Plan for grants of new equity awards.

In February 2014, the Company's stockholders approved the 2014 Plan. The 2014 Plan provides for the grant of incentive stock options to the Company's employees and its parent and subsidiary corporations' employees, and for the grant of nonstatutory stock options, restricted stock awards, restricted stock unit awards, stock appreciation rights, performance stock awards and other forms of stock compensation to the Company's employees, consultants and directors. The 2014 Plan also provides for the grant of performance-based cash awards to the Company's employees, consultants and directors.

Authorized Shares. A total of 2,800,000 shares of the Company's common stock were initially reserved for issuance pursuant to the 2014 Plan. In addition, the shares reserved for issuance under the 2014 Plan include (a) those shares reserved but unissued under the 2008 Plan, and (b) shares returned to the 2008 Plan as the result of expiration or termination of awards (provided that the maximum number of shares that may be added to the 2014 Plan pursuant to (a) and (b) is 5,943,348 shares). The number of shares of the Company's common stock that may be issued under the 2014 Plan will automatically increase on January 1st of each year, for a period of ten years, from January 1, 2015 continuing through January 1, 2024, by 5% of the total number of shares of the Company's common stock outstanding on December 31st of the preceding calendar year, or a lesser number of shares as may be determined by the Company's board of directors. The shares available for issuance increased by 2,288,820 and 2,036,503 on January 1, 2016 and 2015, respectively, pursuant to the automatic share reserve increase provision under the 2014 Plan.

In addition, shares subject to outstanding stock awards granted under the 2008 Plan and 2014 Plan that (i) expire or terminate for any reason prior to exercise or settlement; (ii) are forfeited because of the failure to meet a contingency or condition required to vest such shares or otherwise return to the Company; or (iii) are reacquired, withheld (or not issued) to satisfy a tax withholding obligation in connection with an award or to satisfy the purchase price or exercise price of a stock award, return to

the 2014 Plan's share reserve and become available for future grant under the 2014 Plan, up to the maximum number of shares of 5,943,348.

As of December 31, 2015, the Company had 1,904,743 shares reserved for issuance under the 2014 Plan. Further, as of December 31, 2015, under the 2014 Plan, options to purchase 1,698,475 shares of the Company's common stock were outstanding at a weighted-average exercise price of $17.03 per share and 1,220,008 restricted stock units were outstanding.

The compensation committee of the Company's board of directors, acting under authority delegated from the board of directors, granted to employees in the first quarter of 2016, 12,708 shares of common stock, option awards to purchase an aggregate of 3,617 shares of common stock at an exercise price of $27.98 and restricted stock unit awards for an aggregate of 8,177 shares of common stock, in each case under the 2014 Equity Incentive Plan.

In October 2008, the Company's stockholders approved the Company's 2008 Plan. The 2008 Plan was most recently amended on May 8, 2013. The 2008 Plan provided for the grant of incentive stock options to the Company's employees and the employees of the Company's subsidiaries, and for the grant of nonstatutory stock options, restricted stock awards and deferred stock awards to the Company's employees, directors and consultants. Upon the effective date of the 2014 Plan, the Company ceased using the 2008 Plan to grant new equity awards, and began using the 2014 Plan for grants of new equity awards. Accordingly, as of January 30, 2014, no shares were available for future grant under the 2008 Plan. However, the 2008 Plan will continue to govern the terms and conditions of outstanding awards granted thereunder.

As of December 31, 2015, options to purchase 3,600,035 shares of the Company's common stock were outstanding under the 2008 Plan at a weighted-average exercise price of $3.84 per share.

Stock-based compensation expense related to stock-based awards is included in the following line items in the accompanying consolidated statements of operations:

The terms of stock option grants, including the exercise price per share and vesting periods, are determined by the Company's board of directors or the compensation committee thereof. Stock options

are granted at exercise prices of not less than the estimated fair market value of the Company's common stock at the date of grant. Stock options are generally subject to service-based vesting conditions and vest at various times from the date of the grant, with most options vesting in tranches, generally over a period of four years. Stock options granted under the 2014 Plan and the 2008 Plan are subject to service-based vesting conditions, and generally expire ten years from the grant date.

The Company values stock options using the Black-Scholes-Merton option pricing model, which requires the input of subjective assumptions, including the risk-free interest rate, expected life of the option, expected stock price volatility and dividend yield. Additionally, the recognition of expense requires estimation of the number of options that will ultimately vest and those that will be forfeited. The Company estimates the expected forfeitures of share-based awards at the grant date and recognizes the compensation cost only for those awards expected to vest.

The risk-free interest rate assumption is based upon observed interest rates for constant maturity U.S. Treasury securities consistent with the expected term of the Company's employee stock options. The expected life represents the period of time the stock options are expected to be outstanding and is based on the "simplified method." Under the "simplified method," the expected life of an option is presumed to be the mid-point between the vesting date and the end of the contractual term. The Company used the "simplified method" due to the lack of sufficient historical exercise data to provide a reasonable basis upon which to otherwise estimate the expected life of the stock options. Expected volatility is based on historical volatilities for publicly traded stock of comparable companies over the estimated expected life of the stock options. The Company assumed no dividend yield because dividends are not expected to be paid in the near future, which is consistent with the Company's history of not paying dividends.

The following table summarizes the assumptions used for estimating the fair value of the stock options granted:

The following is a summary of the stock option activity for the year ended December 31, 2015:

			Weighted-Average Exercise Price per Share			Aggregate Intrinsic Value (in thousands)

Outstanding balance at December 31, 2014	5,850,211		$	5.39	7.33	$	83,487
Granted	692,814			25.73	9.04
Exercised	(1,141,731	)		4.67	5.76
Forfeited	(96,441	)		12.34
Expired	(6,343	)		12.13

Outstanding balance at December 31, 2015	5,298,510			8.07	6.66		105,595



Exercisable at December 31, 2015	3,426,496			4.30	5.77		81,131



Vested and expected to vest at December 31, 2015	5,161,978			7.82	6.61		104,132

The total compensation cost related to the nonvested options not yet recognized as of December 31, 2015 was $11.6 million and will be recognized over a weighted-average period of approximately 2.1 years.

The aggregate intrinsic value of the options exercised during the years ended December 31, 2015, 2014 and 2013 was $25.8 million, $16.2 million and $1.8 million, respectively.

The following table summarizes by grant date the number of shares of common stock subject to stock options granted from January 1, 2015 to December 31, 2015, as well as the associated exercise price per share and the estimated fair value per share of the Company's common stock on the grant date.

Prior to the IPO, the Company determined for financial reporting purposes the estimated per share fair value of its common stock at various grant dates using contemporaneous valuations performed in accordance with the guidance outlined in the American Institute of Certified Public Accountants Practice Aid, "Valuation of Privately-Held Company Equity Securities Issued as Compensation," also known as the Practice Aid. In conducting the contemporaneous valuations, the Company used relevant information available and considered all objective and subjective factors that it believed to be relevant for each valuation conducted, including management's best estimate of the Company's business condition, prospects and operating performance at each valuation date.

Throughout 2015 and 2014, the Company granted restricted stock units under the 2014 Plan to the Company's directors and certain of the Company's employees. The terms of the restricted stock unit grants under the 2014 Plan, including the vesting periods, are determined by the Company's board of directors or the compensation committee thereof. Restricted stock units are generally subject to service-based vesting conditions and vest at various times from the date of the grant, with most restricted stock units vesting in equal annual tranches, generally over a period of four years.

The total compensation cost related to the nonvested restricted stock units not yet recognized as of December 31, 2015 was $14.8 million and will be recognized over a weighted-average period of approximately 2.6 years.

During 2015, the Company granted 26,567 shares of common stock to a new key employee, with a fair value of $0.8 million.

Diluted loss per share is the same as basic loss per share for all periods presented because the effects of potentially dilutive items were anti-dilutive, given the Company's net loss. The following securities have been excluded from the calculation of weighted-average shares of common stock outstanding because the effect is anti-dilutive for the years ended December 31, 2015, 2014 and 2013:

Basic and diluted net loss per share attributable to holders of common stock is calculated as follows:

Operating segments are defined as components of an enterprise for which discrete financial information is available that is evaluated regularly by the chief operating decision maker ("CODM") for purposes of allocating resources and evaluating financial performance. The Company's CODM reviews the financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance. As such, the Company's operations constitute a single operating segment and one reportable segment. The Company offers similar services to substantially all of its clients, which primarily represent well-recognized nonprofit colleges and universities in the United States. Substantially all assets were held and all revenue was generated in the United States during all periods presented.

The Company has established a 401(k) plan for eligible employees to contribute up to 100% of their compensation, limited by the IRS-imposed maximum contribution amount. The Company matches 33% of each employee's contribution up to 6% of the employee's salary deferral. For the years ended December 31, 2015, 2014 and 2013, the Company made employer contributions of $0.8 million, $0.6 million and $0.4 million, respectively.

The Company subleases office space to an entity that was, upon execution of the sublease in 2011, a greater than 5% stockholder. The lease requires the subtenant to reimburse the Company for the allocated cost of the office space subleased. For the years ended December 31, 2015, 2014 and 2013, the Company recorded $0.3 million, $0.3 million and $0.2 million, respectively, as rental income from this related entity.

The Company utilizes the marketing and event planning services of a company that is partially owned by one of the Company's executives. The Company recorded $1.7 million, $1.6 million and $0.8 million for the expenses incurred related to the services provided by this related party for the years ended December 31, 2015, 2014 and 2013, respectively. No material amounts were due to the related party or recorded in accounts payable on the consolidated balance sheets as of December 31, 2015 and 2014.

14. Quarterly Financial Information (Unaudited—see accompanying accountants' report)

The following tables set forth certain unaudited quarterly financial data for 2015 and 2014. This unaudited information has been prepared on the same basis as the audited information included elsewhere in this Annual Report and includes all adjustments necessary to present fairly the information set forth therein. The operating results are not necessarily indicative of results for any future period.

	Three Months Ended

	March 31, 2015			June 30, 2015			September 30, 2015			December 31, 2015
	(in thousands, except share and per share amounts)
Revenue	$	34,612		$	35,238		$	37,092		$	43,252
Costs and expenses:
Servicing and support		7,550			7,903			7,845			8,749
Technology and content development		6,134			6,466			7,082			7,529
Program marketing and sales		19,587			21,526			21,567			20,231
General and administrative		6,711			8,871			8,477			10,064

Total costs and expenses		39,982			44,766			44,971			46,573

Loss from operations		(5,370	)		(9,528	)		(7,879	)		(3,321	)
Other income (expense):
Interest expense		(126	)		(126	)		(127	)		(173	)
Interest income		28			24			21			94
Other		—			—			(250	)		—

Total other income (expense)		(98	)		(102	)		(356	)		(79	)

Net loss	$	(5,468	)	$	(9,630	)	$	(8,235	)	$	(3,400	)



Net loss per share:
Basic and diluted	$	(0.13	)	$	(0.23	)	$	(0.20	)	$	(0.07	)
Weighted-average shares used in computing net loss per share:
Basic and diluted		40,978,741			41,362,476			41,645,894			45,651,475

	Three Months Ended

	March 31, 2014			June 30, 2014			September 30, 2014			December 31, 2014
	(in thousands, except share and per share amounts)
Revenue	$	26,332		$	24,744		$	28,407		$	30,756
Costs and expenses:
Servicing and support		6,248			7,000			6,598			7,012
Technology and content development		5,674			5,818			5,726			5,403
Program marketing and sales		15,241			16,710			16,971			16,296
General and administrative		5,436			5,708			6,303			5,973

Total costs and expenses		32,599			35,236			35,598			34,684

Loss from operations		(6,267	)		(10,492	)		(7,191	)		(3,928	)
Other income (expense):
Interest expense		(784	)		(134	)		(176	)		(119	)
Interest income		1			31			30			30

Total other income (expense)		(783	)		(103	)		(146	)		(89	)

Net loss	$	(7,050	)	$	(10,595	)	$	(7,337	)	$	(4,017	)



Net loss per share:
Basic and diluted	$	(0.92	)	$	(0.27	)	$	(0.18	)	$	(0.10	)
Weighted-average shares used in computing net loss per share:
Basic and diluted		7,698,709			39,304,884			40,269,937			40,577,087

The following selected consolidated financial data for the years ended December 31, 2015, 2014, 2013 and 2012, and the selected consolidated balance sheet data as of December 31, 2015, 2014 and 2013 are derived from our audited consolidated financial statements. Our historical results are not necessarily indicative of the results to be expected in the future. The selected consolidated financial data should be read together with Item 7 "Management's Discussion and Analysis of Financial Condition and Results of Operations" and in conjunction with the consolidated financial statements, related notes, and other financial information included elsewhere in this Annual Report on Form 10-K.

	Year Ended December 31,

	2015			2014			2013			2012
	(in thousands, except share and per share amounts)
Consolidated Statement of Operations Data:
Revenue	$	150,194		$	110,239		$	83,127		$	55,879
Costs and expenses:
Servicing and support		32,047			26,858			22,718			14,926
Technology and content development		27,211			22,621			19,472			8,299
Program marketing and sales		82,911			65,218			54,103			45,390
General and administrative		34,123			23,420			14,840			10,342

Total costs and expenses		176,292			138,117			111,133			78,957

Loss from operations		(26,098	)		(27,878	)		(28,006	)		(23,078	)
Other income (expense):
Interest expense		(552	)		(1,213	)		27			(73	)
Interest income		167			92			26			38
Other		(250	)		—			—			—

Total other income (expense)		(635	)		(1,121	)		53			(35	)

Loss before income taxes		(26,733	)		(28,999	)		(27,953	)		(23,113	)
Income tax expense		—			—			—			—

Net loss		(26,733	)		(28,999	)		(27,953	)		(23,113	)
Preferred stock accretion		—			(89	)		(347	)		(339	)

Net loss attributable to common stockholders	$	(26,733	)	$	(29,088	)	$	(28,300	)	$	(23,452	)



Net loss per share attributable to common stockholders, basic and diluted	$	(0.63	)	$	(0.91	)	$	(3.81	)	$	(3.33	)



Weighted-average common shares outstanding used in computing net loss per share attributable to common stockholders, basic and diluted		42,420,356			32,075,107			7,432,055			7,037,090



Other Financial Data:
Adjusted EBITDA (loss)⁽¹⁾	$	(6,629	)	$	(14,779	)	$	(21,245	)	$	(18,814	)

To provide investors with additional information regarding our financial results, we have provided within this Annual Report on Form 10-K Adjusted EBITDA loss, a non-GAAP financial measure. We have provided a reconciliation below of Adjusted EBITDA loss to net loss, the most directly comparable GAAP financial measure.

We have included Adjusted EBITDA loss in this Annual Report on Form 10-K because it is a key measure used by our management and 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 operational plans. In particular, the exclusion of certain expenses in calculating Adjusted EBITDA loss can provide a useful measure for period-to-period comparisons of our core business. Accordingly, we believe that Adjusted EBITDA loss provides useful information to investors and others in understanding and evaluating our operating results in the same manner as our management and board of directors.

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

Because of these and other limitations, you should consider Adjusted EBITDA loss alongside other GAAP-based financial performance measures, including various cash flow metrics, net income (loss) and our other GAAP results. The following table presents a reconciliation of Adjusted EBITDA loss to net loss for each of the periods indicated:

In reviewing the agreements included as exhibits to this Annual Report on Form 10-K, please remember they are included to provide you with information regarding their terms and are not intended to provide any other factual or disclosure information about the Company or the other parties to the agreements. The agreements contain representations and warranties by each of the parties to the applicable agreement. These representations and warranties have been made solely for the benefit of the other parties to the applicable agreement and:

Accordingly, these representations and warranties may not describe the actual state of affairs as of the date they were made of at any other time. Additional information about the Company may be found elsewhere in this Annual Report on Form 10-K and the Company's other public filings, which are available without charge through the SEC's website at http://www.sec.gov.

The Company acknowledges that, notwithstanding the inclusion of the foregoing cautionary statements, it is responsible for considering whether additional specific disclosures of material information regarding material contractual provisions are required to make the statements in this report not misleading.

		Description

10.2.1	*	Second Addendum to the Master Services Agreement, by and between the Registrant and University of Southern California, on behalf of the School of Social Work, dated as of March 14, 2014.	S-1/A	333-194079	10.2.1	March 17, 2014

10.2.2	*	Amendment to Master Services Agreement, by and between the Registrant and University of Southern California, on behalf of School of Social Work, dated as of November 5, 2015.

10.3		Amended and Restated Investor Rights Agreement, dated as of March 27, 2012, by and among the Registrant and certain of its stockholders.	S-1	333-194079	10.6	February 21, 2014

10.4	†	Fourth Amended and Restated 2008 Stock Incentive Plan, as amended to date.	S-1	333-194079	10.7	February 21, 2014

10.5	†	Form of Incentive Stock Option Agreement under 2008 Stock Incentive Plan.	S-1	333-194079	10.8	February 21, 2014

10.6	†	Form of Non-Qualified Stock Option Agreement under 2008 Stock Incentive Plan.	S-1	333-194079	10.9	February 21, 2014

10.7	†	2014 Equity Incentive Plan.	S-1	333-194079	10.11	February 21, 2014

10.8	†	Form of Stock Option Agreement under 2014 Equity Incentive Plan.	S-1	333-194079	10.12	February 21, 2014

10.9	†	Form of Restricted Stock Unit Award Agreement under 2014 Equity Incentive Plan.	S-1	333-194079	10.13	February 21, 2014

10.10	†	Summary of Non-Employee Director Compensation Plan.	10-Q	001-36376	10.1	May 12, 2014

10.11	†	Confidential Information, Invention Assignment, Work for Hire, Noncompete and No Solicit/No Hire Agreement, dated as of February 28, 2009, by and between the Registrant and Christopher J. Paucek.	S-1/A	333-194079	10.14	March 17, 2014

10.12	†	Form of Indemnification Agreement with directors and executive officers.	S-1	333-194079	10.15	February 21, 2014

10.13	†	Confidential Information, Invention Assignment, Work for Hire, Noncompete and No Solicit/No Hire Agreement, dated as of February 28, 2009, by and between the Registrant and Robert L. Cohen.	S-1/A	333-194079	10.16	March 17, 2014

10.14	*	Amended and Restated Revolving Credit Agreement, by and among the Registrant, Comerica Bank as Administrative Agent and as a Lender, Issuing Lender and Swing Line Lender and Square 1 Bank as a Lender, dated as of December 31, 2013.	S-1	333-194079	10.4	February 21, 2014

	Description

10.15	Sublease, by and between the Registrant and Noodle Education, Inc., dated as of November 16, 2011.	S-1	333-194079	10.17	February 21, 2014

21.1	Subsidiaries of the Registrant.

23.1	Consent of KPMG LLP, independent registered public accounting firm.

31.1	Certification of Chief Executive Officer of 2U, Inc. pursuant to Exchange Act Rule 13a-14(a)/15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

31.2	Certification of Chief Financial Officer of 2U, Inc. pursuant to Exchange Act Rule 13a-14(a)/15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

32.1	Certification of Chief Executive Officer of 2U, Inc. in accordance with 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 of 2U, Inc. in accordance with 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.


ý		ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 2015
or
o		TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from to


Delaware (State or other jurisdiction of incorporation or organization)		26-2335939 (I.R.S. Employer Identification No.)
8201 Corporate Drive, Suite 900 Landover, MD (Address of principal executive offices)		20785 (Zip Code)

Title of each class:		Name of exchange on which registered:

Common Stock, $0.001 par value per share		NASDAQ Global Select Market


Large accelerated filer ý		Accelerated filer o		Non-accelerated filer o (Do not check if a smaller reporting company)		Smaller reporting company o

	2015

	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
High	$	25.77	$	33.01	$	39.69	$	35.72
Low		16.69		24.20		29.18		18.81



	PART I
Item 1.	Business	3
Item 1A.	Risk Factors	20
Item 1B.	Unresolved Staff Comments	43
Item 2.	Properties	43
Item 3.	Legal Proceedings	43
Item 4.	Mine Safety Disclosures	43
	PART II
Item 5.	Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	44
Item 6.	Selected Financial Data	46
Item 7.	Management's Discussion and Analysis of Financial Condition and Results of Operations	46
Item 7A.	Quantitative and Qualitative Disclosures About Market Risk	46
Item 8.	Financial Statements and Supplementary Data	47
Item 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	47
Item 9A.	Controls and Procedures	47
Item 9B.	Other Information	48
	PART III
Item 10.	Directors, Executive Officers and Corporate Governance	48
Item 11.	Executive Compensation	48
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	48
Item 13.	Certain Relationships and Related Transactions, and Director Independence	48
Item 14.	Principal Accounting Fees and Services	48
	PART IV
Item 15.	Exhibits, Financial Statement Schedules	48
Signatures		49



Net (loss) income	(184	)%	(12	)%	17	%	(18	)%
Interest expense⁽¹⁾	0	%	0	%	0	%	0	%
Interest income⁽¹⁾	0	%	0	%	0	%	0	%
Depreciation and amortization expense⁽¹⁾	9	%	5	%	4	%	5	%
Stock-based compensation expense⁽¹⁾	17	%	10	%	6	%	8	%
Adjusted EBITDA (loss) income	(158	)%	4	%	27	%	(4	)%

	2014

	First Quarter*		Second Quarter		Third Quarter		Fourth Quarter
High	$	14.82	$	17.58	$	20.20	$	20.57
Low		11.77		10.52		13.07		14.91

		PAGE

Management's Discussion and Analysis of Financial Condition and Results of Operations (Unaudited)			51
Financial Statements:
Management's Report on Internal Control Over Financial Reporting			70
Reports of Independent Registered Public Accounting Firm			71
Consolidated Balance Sheets as of December 31, 2015 and 2014			73
Consolidated Statements of Operations for the years ended December 31, 2015, 2014 and 2013			74
Consolidated Statements of Changes in Stockholders' Equity (Deficit) for the years ended December 31, 2015, 2014 and 2013			75
Consolidated Statements of Cash Flows for the years ended December 31, 2015, 2014 and 2013			76
Notes to Consolidated Financial Statements			77
Selected Financial Data			100

	Payment due by period

Contractual Obligations	Total		Less than 1 year		1 - 3 years		3 - 5 years		More than 5 years
	(in thousands)
Operating lease obligations	$	73,959	$	3,919	$	11,333	$	11,309	$	47,398
Payments to clients		12,400		1,550		7,600		850		2,400

Total	$	86,359	$	5,469	$	18,933	$	12,159	$	49,798

	Balance at Beginning of Period		Additions Charged to Expense/Against Revenue		Deductions			Balance at End of Period

	(in thousands)
Allowance for doubtful accounts:
Year ended December 31, 2015	$	—	$	—	$	—		$	—
Year ended December 31, 2014		12		—		(12	)		—
Year ended December 31, 2013		—		12		—			12


2016	$	2,907
2017		1,968
2018		1,044
2019		402
2020		152
Thereafter		15

Total	$	6,488

	December 31, 2015							December 31, 2014

	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
	(in thousands)
Capitalized content development costs	$	24,796	$	(10,931	)	$	13,865	$	16,835	$	(7,379	)	$	9,456
Capitalized content development costs in process		4,256		—			4,256		3,699		—			3,699

Total	$	29,052	$	(10,931	)	$	18,121	$	20,534	$	(7,379	)	$	13,155

	2015			2014			2013

	(in thousands)
Domestic	$	(26,733	)	$	(28,999	)	$	(27,953	)

Total loss before income taxes	$	(26,733	)	$	(28,999	)	$	(27,953	)



U.S. statutory federal income tax rate	35.0	%	35.0	%	35.0	%
Increase (decrease) resulting from:
U.S. state income taxes, net of federal benefits	7.7		5.8		7.3
Non-deductible expenses	(2.0	)	(2.8	)	(2.1	)
Change in valuation allowance	(39.1	)	(32.4	)	(39.9	)
Other	(1.6	)	(5.6	)	(0.3	)

Effective tax rate	0.0	%	0.0	%	0.0	%

	Balance at Beginning of Period		Additions Charged to Expense/Against Revenue		Deductions		Balance at End of Period

	(in thousands)
Income tax valuation allowance:
Year ended December 31, 2015	$	44,309	$	10,430	$	—	$	54,739
Year ended December 31, 2014		34,921		9,388		—		44,309
Year ended December 31, 2013		23,864		11,057		—		34,921


Outstanding stock options			5,298,510
Possible future issuance under 2014 Plan			1,904,743
Outstanding restricted stock units			1,220,008

Total shares of common stock reserved for future issuance			8,423,261

Grant Date		Exercise Price per Share		Estimated Grant Date Fair Value per Share

January 1, 2015	3,518	$	19.66	$	19.66
January 2, 2015	14,888		19.48		19.48
April 1, 2015	608,746		25.52		25.52
June 1, 2015	28,770		28.23		28.23
June 3, 2015	10,629		28.58		28.58
July 1, 2015	19,743		30.83		30.83
October 1, 2015	6,520		32.20		32.20

			Weighted-Average Grant Date Fair Value

Outstanding balance at December 31, 2014	992,665		$	11.39
Granted	585,765			25.74
Vested	(272,128	)		11.54
Forfeited	(86,294	)		15.20

Outstanding balance at December 31, 2015	1,220,008			17.97

		Description

3.1		Amended and Restated Certificate of Incorporation of the Registrant.	8-K	001-36376	3.1	April 4, 2014

3.2		Amended and Restated Bylaws of the Registrant.	8-K	001-36376	3.2	April 4, 2014

4.1		Specimen stock certificate evidencing shares of Common Stock.	S-1/A	333-194079	4.2	March 17, 2014

10.1	*	Services Agreement, by and between the Registrant and University of Southern California, on behalf of the USC Rossier School of Education, dated as of October 29, 2008, as amended to date.	S-1	333-194079	10.1	February 21, 2014

10.2	*	Master Services Agreement, by and between the Registrant and University of Southern California, on behalf of School of Social Work, dated as of April 12, 2010, and Addenda dated as of April 12, 2010 and July 22, 2011.	S-1	333-194079	10.2	February 21, 2014

2U, Inc.
March 10, 2016

/s/ CHRISTOPHER J. PAUCEK

Christopher J. Paucek

Chief Executive Officer and Director