Natural Gas Services (NGS) CEO gains stock from RSU awards, tax withholding

Rhea-AI Filing Summary

Natural Gas Services Group Chief Executive Officer Justin Jacobs reported compensation-related stock activity involving restricted stock units (RSUs) and common shares. On March 13, 2026, he exercised RSUs into 10,140 and 1,556 shares of common stock at a conversion price of $0.00 per share.

He also received a grant or award of 11,696 common shares at $0.00 per share, increasing his direct ownership. To cover tax obligations tied to these awards, 4,433 common shares were withheld at a price of $35.59 per share. After these transactions, he directly held 26,756 common shares and 10,461 RSUs representing the right to receive an equal number of common shares upon vesting without payment.

Insider Trade Summary

11,696 shares exercised/converted

Mixed 5 txns

Insider Jacobs Justin

Role Chief Executive Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Unit	10,140	$0.00	--
Exercise	Restricted Stock Unit	1,556	$0.00	--
Grant/Award	Common Stock	11,696	$0.00	--
Tax Withholding	Common Stock	4,433	$35.59	$158K
holding	Restricted Stock Units	--	--	--

Holdings After Transaction: Restricted Stock Unit — 20,280 shares (Direct); Common Stock — 31,189 shares (Direct); Restricted Stock Units — 10,461 shares (Direct)

Footnotes (1)

1. Not applicable. Represents shares acquired in connection with the vesting of a Restricted Stock Unit ("RSU") award. Not applicable. Each RSU represents the right to receive one share of the Company's common stock upon vesting without payment.

Form 4 Insider Transactions: What Each Field Means →

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^*

Jacobs Justin

(Last) (First) (Middle)

404 VETERANS AIRPARK DRIVE

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)

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

3. Date of Earliest Transaction (Month/Day/Year)
03/13/2026

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	03/13/2026		A		11,696	A	(1)	31,189	D
Common Stock	03/13/2026		F		4,433	D	$35.59	26,756	D

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 Unit	(2)	03/13/2026		M			10,140	(2)	(2)	Common Stock	10,140	$0	20,280	D
Restricted Stock Unit	(2)	03/13/2026		M			1,556	(2)	(2)	Common Stock	1,556	$0	3,111	D
Restricted Stock Units	(2)							(2)	(2)	Common Stock	10,461		10,461	D

Explanation of Responses:

1. Not applicable. Represents shares acquired in connection with the vesting of a Restricted Stock Unit ("RSU") award.

2. Not applicable. Each RSU represents the right to receive one share of the Company's common stock upon vesting without payment.

	Justin C. Jacobs	03/16/2026
	** 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 stock transactions did NGS CEO Justin Jacobs report on March 13, 2026?

Justin Jacobs reported RSU-related stock activity on March 13, 2026. He exercised RSUs into 10,140 and 1,556 common shares and received a grant of 11,696 common shares, all at a conversion or grant price of $0.00 per share.

How many Natural Gas Services Group (NGS) shares did the CEO have after these Form 4 transactions?

After the reported activity, Justin Jacobs directly held 26,756 shares of Natural Gas Services Group common stock. He also had 10,461 restricted stock units outstanding, each representing the right to receive one additional common share upon vesting without payment.

Were any Natural Gas Services Group (NGS) shares sold by the CEO in this Form 4 filing?

No open-market sale was reported. Instead, 4,433 common shares were disposed of to satisfy exercise price or tax liabilities at $35.59 per share. This F-coded transaction is a tax-withholding disposition, not a discretionary sale into the market.

What are the restricted stock units (RSUs) reported by NGS CEO Justin Jacobs?

The RSUs are stock-based awards where each unit equals one share of common stock upon vesting. The filing notes that each RSU represents the right to receive one share of the company’s common stock upon vesting without payment by the holder.

How many restricted stock units remain outstanding for the NGS CEO after these transactions?

Following the reported RSU exercises, 10,461 restricted stock units remained outstanding for Justin Jacobs. These RSUs are directly owned and are tied to an equal number of underlying common shares at a stated exercise price of $0.00 per unit.

Is the NGS CEO’s Form 4 activity primarily compensation-related or market trading?

The activity is primarily compensation-related. It includes RSU exercises into common stock at $0.00, an award of additional common shares, and a tax-withholding disposition. There were no reported open-market purchases or sales of Natural Gas Services Group shares.