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 OF SECURITIES 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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(Print or Type Responses)

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 (Month/Day/Year) 02/28/2018 (Street) SANTA CLARA, CA 95054 4. If Amendment, Date Original Filed(Month/Day/Year) 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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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               10,838 D   Common Stock 02/28/2018   S   66,674 D $ 18.18 (1) 1,126,749 I By Index Ventures V (Jersey), L.P. (2) Common Stock 02/28/2018   S   540 D $ 18.18 (1) 9,128 I By Index Ventures V Parallel Entrepreneur Fund (Jersey), L.P. (2) Common Stock 02/28/2018   S   61,667 D $ 18.18 (1) 1,042,132 I By Index Ventures IV (Jersey), L.P. (2) Common Stock 02/28/2018   S   5,682 D $ 18.18 (1) 100,332 I By Index Ventures IV Parallel Entrepreneur Fund (Jersey), L.P. (2) Common Stock 02/28/2018   S   1,395 D $ 18.18 (1) 23,578 I By Yucca (Jersey) SLP (2)

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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 (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

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 (Month/Day/Year)

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, CA 95054	X

Signatures

/s/ David Howard as Attorney-in-Fact for Michelangelo Volpi		03/02/2018
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Represents the weighted average sale price for the entire number of shares sold. The sale prices range from $18.00 to $18.63 per share. The Reporting Person undertakes to provide to the staff of the SEC, the Issuer, or a stockholder of the Issuer, upon request, the number of shares sold by the Reporting Person of each separate price within the range.
(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.

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