# EDGAR Filing Document

**Accession Number:** 0001767042
**File Stem:** 0000950170-25-108019
**Filing Date:** 2025-8
**Character Count:** 14921
**Document Hash:** 2a9c586a7224c0f85952e103e062fb9d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000950170-25-108019.hdr.sgml**: 20250813

**ACCESSION NUMBER**: 0000950170-25-108019

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13G/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250813

**DATE AS OF CHANGE**: 20250813

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Kodiak Gas Services, Inc.
- **CENTRAL INDEX KEY:** 0001767042
- **STANDARD INDUSTRIAL CLASSIFICATION:** NATURAL GAS TRANSMISSION [4922]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 833013440
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13G/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-94382
- **FILM NUMBER:** 251211448

**BUSINESS ADDRESS:**
- **STREET 1:** 9950 WOODLOCH FOREST DRIVE, 19TH FLOOR
- **CITY:** THE WOODLANDS
- **STATE:** TX
- **ZIP:** 77380
- **BUSINESS PHONE:** 936-539-3300

**MAIL ADDRESS:**
- **STREET 1:** 9950 WOODLOCH FOREST DRIVE, 19TH FLOOR
- **CITY:** THE WOODLANDS
- **STATE:** TX
- **ZIP:** 77380

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Frontier TopCo, Inc.
- **DATE OF NAME CHANGE:** 20190206
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Frontier TopCo Partnership, L.P.
- **CENTRAL INDEX KEY:** 0001767028

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13G/A

**BUSINESS ADDRESS:**
- **STREET 1:** C/O EQT PARTNERS INC
- **STREET 2:** 245 PARK AVENUE, 34TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10167
- **BUSINESS PHONE:** 936-539-3300

**MAIL ADDRESS:**
- **STREET 1:** C/O EQT PARTNERS INC
- **STREET 2:** 245 PARK AVENUE, 34TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10167

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

## SCHEDULE 13G

### Under the Securities Exchange Act of 1934

**(Amendment No. 6)**

**Issuer:** Kodiak Gas Services, Inc.

**Title of Class of Securities:** Common Stock, par value $0.01 per share

**CUSIP Number:** 50012A108

**Date of Event Which Requires Filing of this Statement:** 08/11/2025

**Check the appropriate box to designate the rule pursuant to which this Schedule is filed:**

- [ ] Rule 13d-1(b)

- [ ] Rule 13d-1(c)

- [x] Rule 13d-1(d)

---

| 1. | Names of Reporting Persons<br>Frontier TopCo Partnership, L.P. | Names of Reporting Persons<br>Frontier TopCo Partnership, L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>29762573.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>29762573.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>0 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>29762573.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>29762573.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>34.5% | Percent of Class Represented by Amount in Row (9)<br>34.5% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

**Comment for Type of Reporting Person:** Row 11. Calculated based on 86,243,500 shares of common stock outstanding as of August 11, 2025, which reflects the 87,752,250 shares of common stock outstanding as of August 4, 2025, as disclosed in the Issuer's Quarterly Report on Form 10-Q, filed with the Securities and Exchange Commission on August 7, 2025, minus the 1,508,750 shares of common stock repurchased from the Reporting Person by the Issuer in a privately negotiated transaction on August 11, 2025.

---

| 1. | Names of Reporting Persons<br>Frontier TopCo GP, LLC | Names of Reporting Persons<br>Frontier TopCo GP, LLC |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>29762573.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>29762573.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>0 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>29762573.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>29762573.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>34.5% | Percent of Class Represented by Amount in Row (9)<br>34.5% |
| 12. | Type of Reporting Person (See Instructions)<br>OO | Type of Reporting Person (See Instructions)<br>OO |

**Comment for Type of Reporting Person:** Row 11. Calculated based on 86,243,500 shares of common stock outstanding as of August 11, 2025, which reflects the 87,752,250 shares of common stock outstanding as of August 4, 2025, as disclosed in the Issuer's Quarterly Report on Form 10-Q, filed with the Securities and Exchange Commission on August 7, 2025, minus the 1,508,750 shares of common stock repurchased from the Reporting Person by the Issuer in a privately negotiated transaction on August 11, 2025.

---

| 1. | Names of Reporting Persons<br>EQT Fund Management S.a r.l. | Names of Reporting Persons<br>EQT Fund Management S.a r.l. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>N4 | Citizenship or Place of Organization<br>N4 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>29762573.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>29762573.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>0.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>29762573.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>29762573.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>34.5% | Percent of Class Represented by Amount in Row (9)<br>34.5% |
| 12. | Type of Reporting Person (See Instructions)<br>OO | Type of Reporting Person (See Instructions)<br>OO |

**Comment for Type of Reporting Person:** Row 11. Calculated based on 86,243,500 shares of common stock outstanding as of August 11, 2025, which reflects the 87,752,250 shares of common stock outstanding as of August 4, 2025, as disclosed in the Issuer's Quarterly Report on Form 10-Q, filed with the Securities and Exchange Commission on August 7, 2025, minus the 1,508,750 shares of common stock repurchased from the Reporting Person by the Issuer in a privately negotiated transaction on August 11, 2025.

---

**Item 1(a). Name of Issuer:**
Kodiak Gas Services, Inc.

**Item 1(b). Address of Issuer's Principal Executive Offices:**
9950 Woodloch Forest Drive, 19th Floor, The Woodlands, TX 77380

**Item 2(a). Name of Person Filing:**
This statement is filed by the entities and persons listed below, all of whom together are referred to herein as the "Reporting Persons" and each, a "Reporting Person":
Frontier TopCo Partnership, L.P. ("Kodiak Holdings");
Frontier TopCo GP, LLC ("Frontier GP"); and
EQT Fund Management S.a r.l. ("EFMS").

**Item 2(b). Address of Principal Business Office:**
The address of the principal business office of Kodiak Holdings and Frontier GP is:
EQT Partners Inc.
245 Park Avenue, 34th Floor
New York, NY 10167

The address of the principal business office of EFMS is:
EQT Fund Management S.A.R.L.
51A, Boulevard Royal
L-2449 Luxembourg
Luxembourg

**Item 2(c). Citizenship:**
See responses to Item 4 on each of the cover pages.

**Item 2(d). Title of Class of Securities:**
Common Stock, par value $0.01 per share

**Item 2(e). CUSIP Number:**
50012A108

**Item 3. If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:**

(a) [ ] Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).

(b) [ ] Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).

(c) [ ] Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).

(d) [ ] Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).

(e) [ ] An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

(f) [ ] An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

(g) [ ] A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

(h) [ ] A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i) [ ] A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

(j) [ ] A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), if filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:

(k) [ ] Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).

**Item 4. Ownership:**

**(a) Amount beneficially owned:**

See responses to Item 9 on each of the cover pages.

**(b) Percent of class:**

See responses to Item 11 on each of the cover pages.

**(c) Number of shares as to which the person has:**

**(i) Sole power to vote or to direct the vote:**

See responses to Item 5 on each of the cover pages.

**(ii) Shared power to vote or to direct the vote:**

See responses to Item 6 on each of the cover pages.

**(iii) Sole power to dispose or to direct the disposition of:**

See responses to Item 7 on each of the cover pages.

**(iv) Shared power to dispose or to direct the disposition of:**

See responses to Item 8 on each of the cover pages. Frontier GP is the general partner of Kodiak Holdings. EQT Infrastructure III SCSp ("EQT Infrastructure III") indirectly owns 100% of the membership interests in Frontier GP. EFMS has exclusive responsibility for the management and control of the business and affairs of investment vehicles which constitute the majority of the total commitments to EQT Infrastructure III. As such, EFMS has the power to control Frontier GP's voting and investment decisions and may be deemed to have beneficial ownership of the securities held by Kodiak Holdings. EFMS is managed by a five-member board of directors. Each of Frontier GP and EFMS may be deemed to beneficially own the shares of Common Stock beneficially owned by Kodiak Holdings, but neither the filing of this Schedule 13G nor any of its contents shall be deemed to constitute an admission that any Reporting Person (other than Kodiak Holdings) is the beneficial owner of the Common Stock referred to herein for purposes of Section 13(d) of the Act, or for any other purpose and each of Frontier GP and EFMS expressly disclaim beneficial ownership of such shares. The filing of this statement should not be construed to be an admission that any of the Reporting Persons are members of a "group" for the purposes of Sections 13(d) and 13(g) of the Act.

**Item 5. Ownership of Five Percent or Less of a Class.**

[x] If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following.

**Item 6. Ownership of More than 5 Percent on Behalf of Another Person.**

The several investment vehicles that collectively constitute the EQT Infrastructure III fund may be deemed to have the indirect right to receive or the indirect power to direct the receipt of dividends from, or the proceeds from the sale of, the Common Stock held by Kodiak Holdings by virtue of their ownership of Frontier GP's membership interests. Of these vehicles, each of EQT IV Co-Invest SCSP (No. 1) Limited Partnership, EQT Infra IV Funds (No. 2) Limited Partnership and EQT Infra III Funds (No. 3) Limited Partnership may be deemed to have the indirect right to receive or the indirect power to direct the receipt of dividends from, or the proceeds from the sale of, 5.0% or more of the Issuer's outstanding Common Stock.

**Item 7. Identification and Classification of the Subsidiary**

Not Applicable

**Item 8. Identification and Classification of Members of the Group**

Not Applicable

**Item 9. Notice of Dissolution of Group**

Not Applicable

**Item 10. Certification:**

—

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Frontier TopCo Partnership, L.P.**

**Date:** 08/13/2025

**By:** /s/ Luuk Bogaarts

**Name & Title:** Luuk Bogaarts, Authorized Officer

**Frontier TopCo GP, LLC**

**Date:** 08/13/2025

**By:** /s/ Luuk Bogaarts

**Name & Title:** Luuk Bogaarts, Authorized Officer

**EQT Fund Management S.a r.l.**

**Date:** 08/13/2025

**By:** /s/ Sara Huda

**Name & Title:** Sara Huda, Manager