X0206 3/A 2014-12-11 2014-12-11 0 0001610532 Hortonworks, Inc. HDP 0001626708 Cunitz Herbert C/O HORTONWORKS, INC. 5470 GREAT AMERICA PARKWAY SANTA CLARA CA 95054 0 1 0 0 President Common Stock 0 I Premier Trust, Inc., Trustee of the Cunitz 2014 Irrevocable Trust fbo Graham Cunitz Common Stock 0 I Premier Trust, Inc., Trustee of the Cunitz 2014 Irrevocable Trust fbo Jaclyn Cunitz These holdings are herewith deleted because the Reporting Person did not have a pecuniary interest in shares held by this trust as of the date of the Form 3. /s/ Herbert Cunitz 2015-02-17