13D Filing: Abdiel Qualified Master Fund LP and Alteryx Inc (AYX)

Page 7 of 9 – SEC Filing


CUSIP No. 02156B103 Page 7 of 9 Pages

SCHEDULE 13D

Item 1. Security and Issuer.

This statement on Schedule 13D relates to the Class A common stock, par value
$0.0001 per share (the Common Stock), of Alteryx, Inc. (the Issuer). The Issuers principal executive office is located at 3345 Michelson Drive, Suite 400, Irvine, California 92612.

Item 2. Identity and Background.

(a) This Schedule 13D is being filed by and on behalf of (i) Abdiel
Qualified Master Fund, LP; (ii) Abdiel Capital, LP; (iii) Abdiel Capital Management, LLC; (iv) Abdiel Capital Advisors, LP; and (v) Colin T. Moran (each, a Reporting Person and collectively, the Reporting
Persons). The Reporting Persons are making this single, joint filing and the agreement among the Reporting Persons to file jointly is attached hereto as Exhibit A. The execution and filing of such joint filing agreement shall not be construed
as an admission that the Reporting Persons are a group, or have agreed to act as a group.

(b) The principal business address of each Reporting Person is
410 Park Avenue, Suite 930, New York, NY 10022.

(c) Each of Abdiel Qualified Master Fund, LP and Abdiel Capital, LP is a private investment partnership,
the principal business of which is to make investments. The principal business of Abdiel Capital Management, LLC is to act as the general partner of Abdiel Qualified Master Fund, LP and Abdiel Capital, LP. The principal business of Abdiel Capital
Advisors, LP is to act as the investment manager of Abdiel Qualified Master Fund, LP and Abdiel Capital, LP. Colin T. Moran serves as managing member of Abdiel Capital Management, LLC and Abdiel Capital Partners, LLC, which serves as the general
partner of Abdiel Capital Advisors, LP.

(d)-(e) During the last five years, no Reporting Person has (i) been convicted in any criminal
proceeding (excluding traffic violations or similar misdemeanors) or (ii) been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction resulting in its being subject to a judgment, decree or final order
enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.

(f) Abdiel Qualified Master Fund, LP is a Cayman Islands limited partnership, each of Abdiel Capital, LP and Abdiel Capital Advisors, LP is a Delaware limited
partnership, Abdiel Capital Management, LLC is a Delaware limited liability company, and Colin T. Moran is citizen of the United States.

Item 3. Source and Amount of Funds or Other Consideration.

The shares of Common Stock being reported on this
Schedule 13D were previously reported on a statement on Schedule 13G filed with the SEC by the Reporting Persons on June 22, 2017, as amended on June 23, 2017 and August 17, 2017 (as so amended, the Schedule 13G), except
for 2,302,500 shares of Common Stock, which were acquired in several transactions that occurred after August 16, 2017 and through September 15, 2017, for the accounts of Abdiel Qualified Master Fund, LP and Abdiel Capital, LP for aggregate
consideration of approximately $48.6 million (including commissions). The source of funds used to acquire the Common Stock was the working capital of Abdiel Qualified Master Fund, LP and Abdiel Capital, LP.

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