X0202 SCHEDULE 13G 0002100113 XXXXXXXX LIVE Common Stock, par value $0.0001 per share 03/31/2026 0002086587 York Space Systems Inc. 987084100 6060 S Willow Drive Greenwood Village CO 80111 Rule 13d-1(d) Dirk Wallinger b X1 0 11168593 11168593 0 11168593 N 8.6 IN *Calculated based on 129,694,458 shares of common stock, par value $0.0001 per share (the "Common Stock"), of York Space Systems Inc. (the "issuer") outstanding as reported on the issuer's Quarterly Report on Form 10-Q, filed on May 15, 2026. York Space Systems Inc. 6060 S Willow Drive, Greenwood Village, CO 80111 Dirk Wallinger 6060 S Willow Drive, Greenwood Village, CO 80111 United States Y See response to Item 9 on the cover page. See response to Item 11 on the cover page. See response to Item 5 on the cover page. See response to Item 6 on the cover page. See response to Item 7 on the cover page. See response to Item 8 on the cover page. The reported amounts do not include shares of Common Stock beneficially owned by affiliates of AE Industrial Partners, LP ("AE Industrial Partners"). Pursuant to the Director Nomination Agreement, dated as of January 28, 2026, by and among the issuer and the stockholders party thereto, the reporting person may be deemed to be a member of a "group" within the meaning of Rule 13d-5(b) and beneficially own securities beneficially owned by the affiliates of AE Industrial Partners. The filing of this Statement shall not be deemed an admission of membership in any such "group" or of beneficial ownership of the securities beneficially owned by the affiliates of AE Industrial Partners, for purposes of Section 13(d) or 13(g) or for any other purpose. The responses to Items 5 through 9 of the cover page to this Statement do not reflect any securities beneficially owned by affiliates of AE Industrial Partners. Y Y Y Y Y Y Dirk Wallinger /s/ Dirk Wallinger 05/15/2026