[144] NATURAL GAS SERVICES GROUP INC SEC Filing

Rhea-AI Filing Summary

NATURAL GAS SERVICES GROUP, INC. (NGS): This Form 144 notifies a proposed sale of 759 common shares by a person (Stephen Taylor) through RBC Capital Markets with an aggregate market value of $21,631 and an approximate sale date of 09/25/2025. The shares were acquired as RSU vesting on 01/27/2015. The filing also reports that Stephen Taylor sold 51,326 shares of the issuer over the prior three months for total gross proceeds of $1,388,059 across multiple dates in August–September 2025. The notice includes the standard Rule 144 certification that the seller is not aware of undisclosed material adverse information.

Positive

• Regulatory compliance: The filer provided required Rule 144 disclosures including broker, acquisition date, and prior three-month sales.
• Transparency on source of shares: The shares were acquired via RSU vesting on 01/27/2015, clarifying they were compensation-related grants.

Negative

• Insider sales disclosed: The seller disposed of 51,326 shares in the prior three months for $1,388,059, which may be perceived negatively by some investors.

Insights

Securities/Equity Analyst

TL;DR: Insider is selling vested RSUs; cumulative recent sales total 51,326 shares for $1.39M, disclosed under Rule 144.

The filing documents a routine Rule 144 notice for the sale of 759 shares scheduled for 09/25/2025 and discloses prior dispositions by the same person totaling 51,326 shares in the last three months for $1,388,059. The shares to be sold were originally acquired via RSU vesting in 2015, indicating these are previously granted compensation shares rather than open-market purchases. For investors, this is a transparency event showing liquidity action by an insider, but the volume represents a small fraction of the company's ~12.54 million outstanding shares.

Compliance / Corporate Governance Analyst

TL;DR: Filing appears compliant with Rule 144 disclosure requirements; seller affirms no undisclosed material information.

The Form 144 includes required seller details, broker information, acquisition history (RSU vesting date), and prior three-month sales with gross proceeds, which aligns with regulatory disclosure expectations. The seller's signed representation that no material nonpublic information exists is standard. There is no indication in this filing of trading-plan reliance (Rule 10b5-1), as no plan-adoption date is provided.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
COMMON	RBC CAPITAL MARKETS LLC 250 NICOLLET MALL, SUITE 1700 MINNEAPOLIS MN 55401	759	21631.00	12542314	09/25/2025	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
COMMON	01/27/2015	RSU VEST	ISSUER			759	01/27/2015	N/A

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
STEPHEN TAYLOR C/O RBC CAPITAL MARKETS LLC 250 NICOLLET MALL, SUITE 1700 MINNEAPOPLIS MN 55401	NATURAL GAS SERVICES GROUP INC	08/22/2025	20000	525060.00
STEPHEN TAYLOR C/O RBC CAPITAL MARKETS LLC 250 NICOLLET MALL, SUITE 1700 MINNEAPOLIS MN 55401	NATURAL GAS SERVICES GROUP INC	09/04/2025	10000	270018.00
STEPHEN TAYLOR C/O RBC CAPITAL MARKETS LLC 250 NICOLLET MALL, SUITE 1700 MINNEAPOLIS MN 55401	NATURAL GAS SERVICES GROUP INC	09/16/2025	289	7947.00
STEPHEN TAYLOR C/O RBC CAPITAL MARKETS LLC 250 NICOLLET MALL, SUITE 1700 MINNEAPOLIS MN 55401	NATURAL GAS SERVICES GROUP INC	09/17/2025	6553	180252.00
STEPHEN TAYLOR C/O RBC CAPITAL MARKETS LLC 250 NICOLLET MALL, SUITE 1700 MINNEAPOLIS MN 55401	NATURAL GAS SERVICES GROUP INC	09/18/2025	1638	45045.00
STEPHEN TAYLOR C/O RBC CAPITAL MARKETS LLC 250 NICOLLET MALL, SUITE 1700 MINNEAPOLIS MN 55401	NATURAL GAS SERVICES GROUP INC	09/19/2025	63	1732.00
STEPHEN TAYLOR C/O RBC CAPITAL MARKETS LLC 250 NICOLLET MALL, SUITE 1700 MINNEAPOLIS MN 55401	NATURAL GAS SERVICES GROUP INC	09/23/2025	11457	320214.00
STEPHEN TAYLOR C/O RBC CAPITAL MARKETS LLC 250 NICOLLET MALL, SUITE 1700 MINNEAPOLIS MN 55401	NATURAL GAS SERVICES GROUP INC	09/24/2025	1326	37791.00

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What securities is Stephen Taylor proposing to sell for NGS?

The notice covers a proposed sale of 759 common shares of Natural Gas Services Group (NGS) through RBC Capital Markets.

When were the shares being sold originally acquired?

The 759 shares were acquired via RSU vesting on 01/27/2015.

How many NGS shares did the filer sell in the past three months and for how much?

The filer sold a total of 51,326 shares in the prior three months for aggregate gross proceeds of $1,388,059.

Who is the broker handling the proposed sale?

The broker listed is RBC Capital Markets LLC, 250 Nicollet Mall, Suite 1700, Minneapolis, MN.

Does the filing indicate the seller is aware of any undisclosed material information?

By signing the Form 144, the seller represents that they do not know any material adverse information about the issuer that has not been publicly disclosed.