Certain Restricted Stock Units of Alteryx, Inc. are subject to a Lock-Up Agreement Ending on 3-JAN-2018. These Restricted Stock Units will be under lockup for 118 days starting from 7-SEP-2017 to 3-JAN-2018. Details: The selling stockholders have agreed that they will not to dispose of or hedge any of or their common stock or securities convertible into or exchangeable for 17,435,026 shares of Class A and Class B Common Stock, for a period of 90 days after the date of the final prospectus without the prior written consent of Goldman Sachs & Co. LLC and J.P. Morgan Securities LLC. The directors, executive officers, and certain stockholders have agreed that they will not to dispose of or hedge any of or their common stock or securities convertible into or exchangeable for 15,541,530 shares of Class A and Class B Common Stock, on the day immediately prior to the date on which the trading window opens pursuant to insider trading policy during the fiscal quarter ending December 31, 2017, without the prior written consent of Goldman Sachs & Co. LLC and J.P. Morgan Securities LLC.