SCHEDULE 13G 0001034196 XXXXXXXX LIVE Class A Common Stock, par value $0.0001 per share 01/13/2026 0001844452 Intuitive Machines, Inc. 46125A100 13467 Columbia Shuttle Street Houston TX 77059 Rule 13d-1(c) Advent International, L.P. b DE 0 22991028 0 22991028 22991028 16 PN The percent of class is calculated based on 119,319,784 shares of Common Stock outstanding as of November 10, 2025, as reported in the Issuer's Form 10-Q filed with the Securities and Exchange Commission ("SEC") on November 13, 2025, as such amount is increased by the 24,311,183 shares of Common Stock issued in connection with the closing of the Purchase Agreement (as defined herein). Advent International GP, LLC b DE 0 22991028 0 22991028 22991028 16 OO The percent of class is calculated based on 119,319,784 shares of Common Stock outstanding as of November 10, 2025, as reported in the Issuer's Form 10-Q filed with the SEC on November 13, 2025, as such amount is increased by the 24,311,183 shares of Common Stock issued in connection with the closing of the Purchase Agreement. Galileo TopCo, Inc. b DE 0 22991028 0 22991028 22991028 16 CO The percent of class is calculated based on 119,319,784 shares of Common Stock outstanding as of November 10, 2025, as reported in the Issuer's Form 10-Q filed with the SEC on November 13, 2025, as such amount is increased by the 24,311,183 shares of Common Stock issued in connection with the closing of the Purchase Agreement. Vantor Holdings Inc. b DE 0 22991028 0 22991028 22991028 16 CO The percent of class is calculated based on 119,319,784 shares of Common Stock outstanding as of November 10, 2025, as reported in the Issuer's Form 10-Q filed with the SEC on November 13, 2025, as such amount is increased by the 24,311,183 shares of Common Stock issued in connection with the closing of the Purchase Agreement. Intuitive Machines, Inc. 13467 Columbia Shuttle Street, Houston, Texas, 77059 This statement is filed by the entities listed below, all of whom together are referred to herein as the "Reporting Persons": (i) Advent International, L.P. (f/k/a Advent International Corporation) a Delaware limited partnership ("Advent LP") (ii) Advent International GP, LLC, a Delaware limited liability company ("Advent GP LLC," and together with Advent LP, the "Advent Entities") (iii) Galileo TopCo, Inc., a Delaware corporation ("Galileo") (iv) Vantor Holdings Inc., a Delaware corporation ("Vantor") The principal business address of the Advent Entities is c/o Advent International, L.P., Prudential Tower, 800 Boylston Street, Suite 3300, Boston, MA 02199-8069. The principal business address of Galileo and Vantor is 1300 W. 120th Ave., Westminster, CO 80234. See responses to Item 4 on each cover page. Y See responses to Item 9 on each cover page. The reported securities are directly held by Vantor, which represents approximately 16% of the outstanding Common Stock based on 119,319,784 shares of Common Stock outstanding as of November 10, 2025, as reported in the Issuer's Form 10-Q filed with the SEC on November 13, 2025, as such amount is increased by the 24,311,183 shares of Common Stock issued in connection with closing of a Membership Interest Purchase Agreement (the "Purchase Agreement") by and among the Issuer, Intuitive Machines, LLC, a Delaware limited liability company and subsidiary of the Issuer, Vantor, Galileo, and Lanteris Space Holdings LLC, a Delaware limited liability company. Vantor is indirectly owned 100% by Galileo. The Advent Entities indirectly hold 78% of the equity in Galileo and Vantor and as such, control and beneficially own the reported securities directly held by Vantor. Accordingly, the Advent Entities, and Advent GP LLC as the general partner of Advent LP, may be deemed to have voting and dispositive power over the reported securities directly held by Vantor. Pursuant to Rule 13d-4 of the Act, the Reporting Persons declare that filing this statement shall not be construed as an admission that any of the Reporting Persons are, for the purposes of Section 13(d) and/or Section 13(g) of the Act, the beneficial owner of any securities covered by this statement, and such beneficial ownership is expressly disclaimed by the Reporting Persons. See responses to Item 11 on each cover page. See responses to Item 5 on each cover page. See responses to Item 6 on each cover page. See responses to Item 7 on each cover page. See responses to Item 8 on each cover page. Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. Exhibit 99.1 Joint Filing Agreement, dated as of January 20, 2026, by and among the Reporting Persons. Advent International, L.P. /s/ Neil Crawford 01/20/2026 Advent International GP, LLC /s/ Neil Crawford 01/20/2026 Galileo TopCo, Inc. /s/ Laurie Korneffel 01/20/2026 Vantor Holdings Inc. /s/ Laurie Korneffel 01/20/2026 Advent International, L.P., By: Advent International GP, LLC, its General Partner.