X0306 4 2022-03-07 0 0001689923 Alteryx, Inc. AYX 0001699950 Stoecker Dean C/O ALTERYX, INC. 17200 LAGUNA CANYON ROAD IRVINE CA 92618 1 0 1 0 Class A Common Stock 2022-03-07 4 C 0 24300 0.00 A 24300 I By 4610, LLC Class A Common Stock 79392 D Class A Common Stock 25000 I By The Dean A. Stoecker Trust dated December 16, 2013 Class A Common Stock 12449 I By TAILY, LLC Class A Common Stock 10599 I By TRILY, LLC Class B Common Stock 0.00 2022-03-07 4 C 0 24300 0.00 D Class A Common Stock 24300 974749 I By 4610, LLC Class B Common Stock 0.00 Class A Common Stock 423451 423451 D Class B Common Stock 0.00 Class A Common Stock 4698655 4698655 I By The Dean A. Stoecker Trust dated December 16, 2013 Class B Common Stock 0.00 Class A Common Stock 1012449 1012449 I By Lucy27, LLC The Reporting Person has sole voting and dispositive authority with respect to the shares owned by the limited liability company. Includes 10,111 unvested shares subject to awards of RSUs. Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock upon settlement for no consideration. Shares of the Issuer's Class A Common Stock will be delivered to the Reporting Person following vesting. The Reporting Person serves as trustee and beneficiary of The Dean A. Stoecker Trust dated December 16, 2013 (the "Stoecker Trust") and has voting and dispositive authority with respect to the shares owned by the Stoecker Trust. Each share of Class B Common Stock is convertible, at any time at the option of the holder, into one (1) share of Class A Common Stock. In addition, each share of Class B Common Stock will convert automatically into one (1) share of Class A Common Stock upon the transfer, whether or not for value, to any transferee who is not a "Permitted Transferee", as defined in the Issuer's Restated Certificate of Incorporation in effect as of the date hereof. The shares of Class B Common Stock have no expiration date. Each share of Class B Common Stock will convert automatically into one (1) share of Class A Common Stock upon the earliest to occur of the following: (a) the date specified by a vote of the holders of 66 2/3% of the outstanding shares of Class B Common Stock, (b) March 23, 2027, and (c) the date the shares of Class B Common Stock cease to represent at least 10% of all outstanding shares of Common Stock. The shares of Class A Common Stock and Class B Common Stock have no expiration date. This Form 4 replaces the Form 4 filed incorrectly under the Issuer's CIK on March 9, 2022 (Accession number 0001209191-22-017743). /s/ Christopher M. Lal, by power of attorney 2022-04-01