Mastech Digital (MHH) director and 10% owner lifts stake with December share buys

Rhea-AI Filing Summary

Mastech Digital, Inc. director and 10% owner Steven A. Shaw, as trustee of the Rachel Lynn Shaw Trust, reported open-market purchases of the company’s common stock. On December 9, 2025, the trust bought 2,758 shares at a weighted average price of $7.11, and on December 10, 2025 it bought 1,315 shares at a weighted average price of $7.47.

After these transactions, the trust beneficially owned 1,340,178 Mastech Digital common shares, reported as indirectly owned by Shaw. Both purchases were executed through multiple trades within disclosed price ranges, and the reporting person has committed to provide full trade details upon request.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

SHAW STEVEN A

(Last) (First) (Middle)

346 CLAYPOOL DRIVE

(Street)

WARWICK RI 02886

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Mastech Digital, Inc. [ MHH ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
12/09/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	12/09/2025		P		2,758	A	$7.11(1)	1,338,863	I	By Rachel Lynn Shaw Trust(2)
Common Stock	12/10/2025		P		1,315	A	$7.47(3)	1,340,178	I	By Rachel Lynn Shaw Trust

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This purchase was executed through multiple trades at prices ranging from $6.90 to $7.39. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares purchased at each separate price for all transactions reported on this Form 4.

2. The reporting person is the trustee of the Rachel Lynn Shaw Trust.

3. This purchase was executed through multiple trades at prices ranging from $7.37 to $7.57. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares purchased at each separate price for all transactions reported on this Form 4.

	/s/ Steven A. Shaw	12/11/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Mastech Digital (MHH) report in this Form 4?

A reporting person who is a director and 10% owner of Mastech Digital reported open-market purchases of common stock through the Rachel Lynn Shaw Trust on two consecutive days in December 2025.

How many Mastech Digital (MHH) shares were purchased and at what prices?

The trust purchased 2,758 shares of Mastech Digital common stock on December 9, 2025 at a weighted average price of $7.11, and 1,315 shares on December 10, 2025 at a weighted average price of $7.47.

What is the new beneficial ownership level reported for Mastech Digital (MHH)?

Following these transactions, the reporting person disclosed 1,340,178 shares of Mastech Digital common stock beneficially owned indirectly through the Rachel Lynn Shaw Trust.

Who is the reporting person in this Mastech Digital (MHH) insider transaction?

The reporting person is identified as a director and 10% owner of Mastech Digital and serves as trustee of the Rachel Lynn Shaw Trust, which holds the purchased shares.

Were the Mastech Digital (MHH) insider purchases single trades or multiple trades?

Each reported purchase was executed through multiple trades within stated price ranges, with the filing showing a weighted average price for each transaction date and an undertaking to provide full trade details on request.

How are the Mastech Digital (MHH) shares held for the reporting person?

All reported shares in this filing are held indirectly by the reporting person through the Rachel Lynn Shaw Trust, for which the reporting person acts as trustee.