SEC Form 4 · accession 0001104659-26-082651
York Space Systems Inc. · YSS
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Period of report
Jul 8, 2026
Accepted (ET)
Jul 10, 2026 · 4:05 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0002086587
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock, par value $0.0001 per shareF2,F3 | Jul 8, 2026 | A | 2,289,366 | $34.00 | A | 32,915,588 | I | See Footnotes |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Consists of 605,899, 945,442, 559,633 and 178,392 shares of common stock issued to AE Industrial HorizonX Venture Fund I, LP ("HorizonX Venture Fund I"), AE Ventures Fund III, LP ("Ventures Fund III"), AE Industrial Partners Structured Solutions I, LP ("Structured Solutions I") and AE Industrial HorizonX Venture Co-Investment Fund I, LP ("HorizonX Venture Co-Investment Fund"), respectively, pursuant to that certain Agreement and Plan of Merger (the "Merger Agreement"), dated as of April 29, 2026, by and among York Space Systems Inc. (the "Company"), All.Space Holdings, Inc. and the other parties thereto.
- F2Consists of 2,832,488 shares held by AE Industrial Partners Fund II, LP, 1,813,066 shares held by AE Industrial Partners Fund II-A, LP, 6,842 shares held by AE Industrial Partners Fund II-B, LP, 10,908,489 shares held by AE Industrial Partners Fund III, LP, 3,258,380 shares held by AE Industrial Partners Fund III-A, LP, 566,675 shares held by AE Aerospace Opportunities Fund, 8,757,636 shares held by AE Co-Investment Partners Fund III-Y, LP (CIV), 1,475,343 shares held by AE Co-Investment Partners Fund III Y-2, LP, 23,916 shares held by AE Industrial PSO Equity Partners, LP, 553,253 shares held by AE Industrial Partners PBCI Aggregator, LP, 430,134 shares held by AE Industrial HorizonX Venture Fund II, LP, 605,899 shares held by HorizonX Venture Fund I, 945,442 shares held by Ventures Fund III, 559,633 shares held by Structured Solutions I and 178,392 shares held by HorizonX Venture Co-Investment Fund.
- F3Each entity described above is ultimately controlled by AeroEquity GP, LLC. AeroEquity GP, LLC is controlled by its managing members, Michael Greene and David Rowe. Messrs. Greene and Rowe make all voting and investment decisions with respect to the securities held by AE Industrial Partners. Each of the entities and individuals named above disclaims beneficial ownership of the securities held by AE Industrial Partners, except to the extent of its pecuniary interest therein.