X0306 4 2016-02-11 0 0001610532 Hortonworks, Inc. HDP 0001007547 KLAUSMEYER KEVIN C/O HORTONWORKS, INC. 5470 GREAT AMERICA PARKWAY SANTA CLARA CA 95054 1 0 0 0 Common Stock 2016-02-11 4 A 0 20670 0.00 A 36979 D On February 11, 2016, the Reporting Person was granted 20,670 restricted stock units ("RSUs"). Each RSU represents the right to receive, at settlement, one share of common stock. One-half of the original grant shall vest and become releasable on the first anniversary of the vesting commencement date, and thereafter the balance of the RSUs shall vest and become releasable in a series of two (2) successive equal six-month installments measured from the first anniversary of the vesting commencement date, subject to the Reporting Person's service through such date. /s/ David Howard as Attorney-in-fact for Kevin Klausmeyer 2016-02-16