X0306 4 2018-05-23 0 0001610532 Hortonworks, Inc. HDP 0001180601 CORMIER PAUL J C/O HORTONWORKS, INC. 5470 GREAT AMERICA PARKWAY SANTA CLARA CA 95054 1 0 0 0 Common Stock 2018-05-23 4 A 0 9765 0.00 A 141576 D 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 23, 2019, 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. /s/ Anne Kuykendall as Attorney-in-fact for Paul J. Cormier 2018-05-25