Sec Form 4 Filing - Volpi Michelangelo @ Hortonworks, Inc. - 2017-05-24

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Volpi Michelangelo 2. Issuer Name and Ticker or Trading Symbol Hortonworks, Inc. [ HDP] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O HORTONWORKS, INC., 5470 GREAT AMERICA PARKWAY 3. Date of Earliest Transaction (MM/DD/YY) 05/24/2017 (Street) SANTA CLARA, CA95054 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 05/24/2017 A 10,838 ( 1 ) A $ 0 23,836 D Common Stock 1,552,425 I By Index Ventures IV (Jersey), L.P. ( 2 ) Common Stock 147,355 I By Index Ventures IV Parallel Entrepreneur Fund (Jersey), L.P. ( 2 ) Common Stock 1,678,475 I By Index Ventures V (Jersey), L.P. ( 2 ) Common Stock 13,596 I By Index Ventures V Parallel Entrepreneur Fund (Jersey), L.P. ( 2 ) Common Stock 35,124 I By Yucca (Jersey) SLP ( 2 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Volpi Michelangelo C/O HORTONWORKS, INC. 5470 GREAT AMERICA PARKWAY SANTA CLARA, CA95054 X Signatures /s/ David Howard as Attorney-in-Fact for Michelangelo Volpi 05/26/2017 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Exempt grant of restricted stock units under the Issuer's Amended and Restated 2014 Stock Option and Incentive Plan. The units will vest and settle for shares of Common Stock of the Issuer on May 24, 2018, subject to the Reporting Person's continuous service as a board member through such date. Unvested shares are subject to acceleration upon the occurrence of certain events. ( 2 )The Reporting Person is a partner within the Index Ventures group. Advisors within the Index Ventures group provide advice to Index Ventures IV (Jersey), L.P., Index Ventures IV Parallel Entrepreneur Fund (Jersey), L.P., Index Ventures V (Jersey), L.P., Index Ventures V Parallel Entrepreneur Fund (Jersey), L.P. and Yucca (Jersey) SLP (the "Index Funds"). The Reporting Person is involved in making recommendations to the Index funds, but does not hold voting or dispositive power over the shares held by the Index Funds. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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