Natural Gas Services Group (NGS) director reports small stock acquisition on Form 4

Rhea-AI Filing Summary

Natural Gas Services Group, Inc. director reports small share acquisition

A director of Natural Gas Services Group, Inc. (NGS) reported a routine change in ownership of company stock. On 12/03/2025, the director acquired 49 shares of common stock at a price of $30.50 per share through reinvestment of a cash dividend under a deferred compensation plan. After this transaction, the director beneficially owned 1,509 shares of common stock directly and 13,664 shares indirectly through a Rabbi Trust.

The filing also shows the director held 4,456 restricted stock units, each representing the right to receive one share of NGS common stock upon vesting. The report is filed as a Form 4 for a single reporting person serving as a director of the company.

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

TRINGALI DONALD J

(Last) (First) (Middle)

C/O NATURAL GAS SERVICES GROUP INC

404 VETERANS AIRPARK LANE SUITE 300

(Street)

MIDLAND TX 79705

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
NATURAL GAS SERVICES GROUP INC [ NGS ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
12/03/2025

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								1,509	D
Common Stock	12/03/2025		A		49(1)	A	$30.5	13,664	I	Rabbi 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
Restricted Stock Units	(2)							(2)	(2)	Common Stock	4,456		4,456	D

Explanation of Responses:

1. Shares acquired through reinvestment of cash dividend pursuant to the terms of the deferred compensation plan.

2. Not applicable. Each Restricted Stock Unit represents the right to receive one share of the Issuer's common stock upon vesting.

	Donal J. Tringali	12/05/2025
	** 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 NGS director Donal J. Tringali report?

Director Donal J. Tringali reported acquiring 49 shares of Natural Gas Services Group, Inc. (NGS) common stock on 12/03/2025 at a price of $30.50 per share. The shares were obtained through reinvestment of a cash dividend under a deferred compensation plan.

How many NGS shares does the director beneficially own after this Form 4?

Following the reported transaction, the director beneficially owned 1,509 shares of NGS common stock directly and 13,664 shares indirectly through a Rabbi Trust, as disclosed in the filing.

What restricted stock units does the NGS director hold according to this filing?

The filing indicates the director holds 4,456 restricted stock units. Each restricted stock unit represents the right to receive one share of NGS common stock upon vesting.

What is the relationship of the reporting person to Natural Gas Services Group, Inc. (NGS)?

The reporting person is identified as a director of Natural Gas Services Group, Inc. (NGS). The Form 4 is filed for one reporting person in that capacity.

Was this NGS insider transaction made under a Rule 10b5-1 trading plan?

The form includes a checkbox to indicate if a transaction was made under a Rule 10b5-1(c) trading plan, but the provided content does not show that this box was selected.

How are the indirectly owned NGS shares held by the director structured?

The director’s indirectly owned position of 13,664 shares of NGS common stock is held through a Rabbi Trust, as stated in the ownership table.