2/24/2018 S-1 Table of Contents SPECIAL NOTE REGARDING FORWARD­LOOKING STATEMENTS This prospectus contains forward­looking statements within the meaning of the federal securities laws, which statements involve substantial risks and uncertainties. Forward­looking statements generally relate to future events or our future financial or operating performance. In some cases, you can identify forward­looking statements because they contain words such as “may,” “will,” “should,” “expects,” “plans,” “anticipates,” “could,” “intends,” “target,” “projects,” “contemplates,” “believes,” “estimates,” “predicts,” “potential,” or “continue” or the negative of these words or other similar terms or expressions that concern our expectations, strategy, plans, or intentions. Forward­looking statements contained in this prospectus include, but are not limited to, statements about: • our ability to retain and upgrade paying users; • our ability to attract new users or convert registered users to paying users; • our future financial performance, including trends in revenue, costs of revenue, gross profit or gross margin, operating expenses, paying users, and free cash flow; • our ability to achieve or maintain profitability; • the demand for our platform or for content collaboration solutions in general; • possible harm caused by significant disruption of service or loss or unauthorized access to users’ content; • our ability to effectively integrate our platform with others; • our ability to compete successfully in competitive markets; • our ability to respond to rapid technological changes; • our expectations and management of future growth; • our ability to grow due to our lack of a significant outbound sales force; • our ability to attract large organizations as users; • our ability to offer high­quality customer support; • our ability to manage our international expansion; • our ability to attract and retain key personnel and highly qualified personnel; • our ability to protect our brand; • our ability to prevent serious errors or defects in our platform; • our ability to maintain, protect, and enhance our intellectual property; • our ability to successfully identify, acquire, and integrate companies and assets; • the increased expenses associated with being a public company; and • our anticipated uses of net proceeds from this offering. We caution you that the foregoing list may not contain all of the forward­looking statements made in this prospectus. You should not rely upon forward­looking statements as predictions of future events. We have based the forward­looking statements contained in this prospectus primarily on our current expectations and projections about future events and trends that we believe may affect our business, financial condition, results of operations, and prospects. The outcome of the events described in these forward­looking statements is subject to risks, 43 https://www.sec.gov/Archives/edgar/data/1467623/000119312518055809/d451946ds1.htm 50/235

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