X0306 4 2017-07-13 0 0001437226 Mastech Digital, Inc. MHH 0001033254 TRIVEDI ASHOK 1370 WASHINGTON PIKE, SUITE 400 BRIDGEVILLE PA 15017 1 0 1 0 Common Stock 2017-07-13 4 P 0 428572 7.00 A 428572 I By Ashok K. Trivedi Revocable Trust Common Stock 1097378 D Common Stock 177707 I The Trivedi Family Qualified Subchapter S Trust The reported securities are owned by the Ashok K. Trivedi Revocable Trust of which the reporting person is the Trustee. The reported securities are owned directly by Trivedi Family Qualified Subchapter S Trust. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein. /s/ James J. Barnes, Attorney-in-fact for Ashok Trivedi 2017-07-17