Mastech Digital, Inc.

Previous wording

Plan. Future repurchases may be made in the open market, through privately negotiated transactions, through block purchases or other purchase techniques, or by any combination of such methods, The Company has no obligation to repurchase any shares of Common Stock under the

Current wording

On February 8, 2023, the Company announced that the Board of Directors authorized a share repurchase program of up to 500,000 shares of Common Stock over a two-year period. Repurchases under the program may occur from time to time in the open market, through privately negotiated transactions, through block purchases or other purchase techniques (including Rule 10b5-1 programs), or by any combination of such methods, and the program may be modified, suspended or terminated at any time at the discretion of the Board of Directors. During the three months ended September 30, 2025, the Company purchased 138,500 shares through a block purchase at an average price of $7.64 per share. On February 19, 2025, the Company announced that the Board of Directors had authorized an extension of its previously announced share repurchase program for an additional year through February 8, 2026. The Company did not repurchase any shares of its Common Stock during the quarter ended September 30, 2025, other than through this publicly announced share repurchase program.

Previous wording

of our directors or officers (as defined in Exchange Act Rule 16a-1(f)) informed us of the adoption, modification or termination of a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as those terms are defined in Regulation S-K, Item 408.

Current wording

During the fiscal quarter ended September 30, 2025, none of our directors or officers (as defined in Exchange Act Rule 16a-1(f)) informed us of theadoption, modification ortermination of a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as those terms are defined in Regulation S-K, Item 408.

Previous wording

On June 9, 2025, the Company entered into a Rule 10b5-1 and Rule 10b-18 Repurchase Plan (the “10b5-1 Plan”) under our share repurchase program. The 10b5-1 Plan is intended to satisfy the affirmative defense conditions of Exchange Act Rule 10b5-1(c) and authorizes the purchase of up to 406,568 shares of our Common Stock. The 10b5-1 Plan expires on February 8, 2026 if not otherwise terminated or amended. During the three months ended June 30, 2025, we did not purchase any shares of our Common Stock under the

Current wording

On June 9, 2025, the Company entered into a Rule 10b5-1 and Rule 10b-18 Repurchase Plan (the “10b5-1 Plan”) under our share repurchase program and, on September 15, 2025, the Company elected to terminate this 10b5-1 Plan in accordance with its terms. The 10b5-1 Plan was intended to satisfy the affirmative defense conditions of Exchange Act Rule 10b5-1(c) and authorized the purchase of up to 406,568 shares of our Common Stock. During the three months ended September 30, 2025, we purchased 53,612 shares of our Common Stock under the 10b5-1 Plan for an average price of $7.80 per share.