X0202 SCHEDULE 13G 0001426012 XXXXXXXX LIVE Class A Common Stock, par value $0.001 per share 06/30/2026 0001181412 Space Exploration Technologies Corp. 84615Q103 1 Rocket Road Starbase TX 78521 Rule 13d-1(d) The Founders Fund II, LP b DE 0.00 155393350.00 0.00 155393350.00 155393350.00 2.0 PN The Founders Fund II Principals Fund, LP b DE 0.00 11267600.00 0.00 11267600.00 11267600.00 0.1 PN The Founders Fund II Entrepreneurs Fund, LP b DE 0.00 8491750.00 0.00 8491750.00 8491750.00 0.1 PN The Founders Fund II Management, LLC b DE 0.00 175152700.00 0.00 175152700.00 175152700.00 2.3 OO The Founders Fund III, LP b DE 0.00 23177000.00 0.00 23177000.00 23177000.00 0.3 PN The Founders Fund III Principals Fund, LP b DE 0.00 12027900.00 0.00 12027900.00 12027900.00 0.2 PN The Founders Fund III Entrepreneurs Fund, LP b DE 0.00 490950.00 0.00 490950.00 490950.00 0.0 PN The Founders Fund III Management, LLC b DE 0.00 35695850.00 0.00 35695850.00 35695850.00 0.5 OO The Founders Fund IV, LP b DE 0.00 50546855.00 0.00 50546855.00 50546855.00 0.7 PN The Founders Fund IV Principals Fund, LP b DE 0.00 23720115.00 0.00 23720115.00 23720115.00 0.3 PN The Founders Fund IV Management, LLC b DE 0.00 74266970.00 0.00 74266970.00 74266970.00 1.0 OO The Founders Fund V, LP b DE 0.00 14113325.00 0.00 14113325.00 14113325.00 0.2 PN The Founders Fund V Principals Fund, LP b DE 0.00 6425005.00 0.00 6425005.00 6425005.00 0.1 PN The Founders Fund V Entrepreneurs Fund, LP b DE 0.00 294720.00 0.00 294720.00 294720.00 0.0 PN The Founders Fund V Management, LLC b DE 0.00 20833050.00 0.00 20833050.00 20833050.00 0.3 OO Lembas II, LP b DE 0.00 52969150.00 0.00 52969150.00 52969150.00 0.7 PN The Founders Fund Alpha Management, LLC b DE 0.00 52969150.00 0.00 52969150.00 52969150.00 0.7 OO The Founders Fund Growth II, LP b DE 0.00 22839450.00 0.00 22839450.00 22839450.00 0.3 PN The Founders Fund Growth II Management, LP b DE 0.00 22839450.00 0.00 22839450.00 22839450.00 0.3 PN FF GP Holdings, LLC b DE 0.00 20381610.00 0.00 20381610.00 20381610.00 0.3 OO FF Upper Tier GP, LLC b DE 0.00 43221060.00 0.00 43221060.00 43221060.00 0.6 OO The Founders Fund Growth, LP b DE 0.00 7197300.00 0.00 7197300.00 7197300.00 0.1 PN The Founders Fund Growth Principals Fund, LP b DE 0.00 464250.00 0.00 464250.00 464250.00 0.0 PN Founders SPC, LP b DE 0.00 58950.00 0.00 58950.00 58950.00 0.0 PN The Founders Fund Growth Management, LLC b DE 0.00 7720500.00 0.00 7720500.00 7720500.00 0.1 OO 2025-005 Investments LLC b DE 1352260.00 0.00 1352260.00 0.00 1352260.00 0.0 OO I'll Be Seeing You LLC b DE 12345650.00 0.00 12345650.00 0.00 12345650.00 0.2 OO Barrel Vault LLC b DE 3748835.00 0.00 3748835.00 0.00 3748835.00 0.0 OO Peter Thiel b X1 17446745.00 409859280.00 17446745.00 409859280.00 427306025.00 5.5 IN Space Exploration Technologies Corp. 1 Rocket Road, Starbase, TX, 78521. The names of the persons filing this report (collectively, the "Reporting Persons") are: The Founders Fund II, LP ("FF II") The Founders Fund II Principals Fund, LP ("FFP II") The Founders Fund II Entrepreneurs Fund, LP ("FFE II") The Founders Fund II Management, LLC ("FF II GP") The Founders Fund III, LP ("FF III") The Founders Fund III Principals Fund, LP ("FFP III") The Founders Fund III Entrepreneurs Fund, LP ("FFE III") The Founders Fund III Management, LLC ("FF III GP") The Founders Fund IV, LP ("FF IV") The Founders Fund IV Principals Fund, LP ("FFP IV") The Founders Fund IV Management, LLC ("FF IV GP") The Founders Fund V, LP ("FF V") The Founders Fund V Principals Fund, LP ("FFP V") The Founders Fund V Entrepreneurs Fund, LP ("FFE V") The Founders Fund V Management, LLC ("FF V GP") Lembas II, LP ("Lembas II") The Founders Fund Alpha Management, LLC ("FF Alpha GP") The Founders Fund Growth II, LP ("FFG II") The Founders Fund Growth II Management, LP ("FFG II GP") FF GP Holdings, LLC ("FF GP Holdings") FF Upper Tier GP, LLC ("FFUT GP") The Founders Fund Growth, LP ("FFG") The Founders Fund Growth Principals Fund, LP ("FFGP") Founders SPC, LP ("FSPC") The Founders Fund Growth Management, LLC ("FFG GP") 2025-005 Investments LLC ("2025-005 Investments") I'll Be Seeing You LLC ("IBSY") Barrel Vault LLC ("BV") Peter Thiel ("Thiel") The Reporting Persons expressly disclaim status as a "group" for purposes of this Schedule 13G. The address of each of FF II, FFP II, FFE II, FF II GP, FF III, FFP III, FFE III, FF III GP, FF IV, FFP IV, FF IV GP, FF V, FFP V, FFE V, FF V GP, Lembas II, FF Alpha GP, FFG II, FFG II GP, FF GP Holdings, FFUT GP, FFG, FFGP, FSPC and FFG GP is One Letterman Dr., Building D, 5th Floor, San Francisco, CA 94129. The address of each of 2025-005 Investments and IBSY is 1209 Orange Street, Wilmington, Delaware 19801. The address of each of BV and Thiel is c/o Thiel Capital LLC, 701 Brickell Avenue, Suite 2250, Miami, Florida 33131. Thiel is a United States citizen. All of the other Reporting Persons were organized in Delaware. Y Row 9 of each Reporting Person's cover page to this Schedule 13G sets forth the aggregate number of shares of Class A common stock of the Issuer beneficially owned by such Reporting Person as of June 30, 2026 and is incorporated by reference. The Reporting Persons' beneficial ownership of the Issuer's securities includes (i) 155,393,350 shares of Class A common stock directly held by FF II; (ii) 11,267,600 shares of Class A common stock directly held by FFP II; (iii) 8,491,750 shares of Class A common stock directly held by FFE II; (iv) 23,177,000 shares of Class A common stock directly held by FF III; (v) 12,027,900 shares of Class A common stock directly held by FFP III; (vi) 490,950 shares of Class A common stock directly held by FFE III; (vii) 50,546,855 shares of Class A common stock directly held by FF IV; (viii) 23,720,115 shares of Class A common stock directly held by FFP IV; (ix) 14,113,325 shares of Class A common stock directly held by FF V; (x) 6,425,005 shares of Class A common stock directly held by FFP V; (xi) 294,720 shares of Class A common stock directly held by FFE V; (xii) 52,969,150 shares of Class A common stock directly held by Lembas II; (xiii) 22,839,450 shares of Class A common stock directly held by FFG II; (xiv) 20,381,610 shares of Class A common stock directly held by FF GP Holdings; (xv) 7,197,300 shares of Class A common stock directly held by FFG; (xvi) 464,250 shares of Class A common stock directly held by FFGP; (xvii) 58,950 shares of Class A common stock directly held by FSPC; (xviii) 1,352,260 shares of Class A common stock held directly by 2025-005 Investments; (xix) 12,345,650 shares of Class A common stock held directly by IBSY; and (xx) 3,748,835 shares of Class B common stock held directly by BV (each of which is convertible to Class A common stock on a one-for-one basis). FF II GP is the general partner of FF II, FFP II and FFE II, and may be deemed to beneficially own the shares held by such entities. FF III GP is the general partner of FF III, FFP III and FFE III, and may be deemed to beneficially own the shares held by such entities. FF IV GP is the general partner of FF IV and FFP IV, and may be deemed to beneficially own the shares held by such entities. FF V GP is the general partner of FF V, FFP V and FFE V, and may be deemed to beneficially own the shares held by such entities. FF Alpha GP is the general partner of Lembas II and may be deemed to beneficially own the shares held by Lembas II. FFUT GP is the manager of FF GP Holdings and the general partner of FFG II GP, which is the general partner of FFG II, and FFUT GP may be deemed to beneficially own the shares held by FF GP Holdings and FFG II. FFG GP is the general partner of FFG, FFGP and FSPC, and may be deemed to beneficially own the shares held by such entities. Thiel is the manager of FF II GP, FF III GP, FF IV GP, FF V GP, FF Alpha GP, FFUT GP, FFG GP and BV, and the sole beneficial owner of each of 2025-005 Investments and IBSY, and may be deemed to beneficially own the shares held by the foregoing entities. Collectively, the Reporting Persons beneficially own an aggregate of 427,306,025 shares of Class A common stock as of June 30, 2026. The Reporting Persons are under common control and, as a result, the Reporting Persons may be deemed to be members of a group. However, the Reporting Persons expressly disclaim such group membership, and this Schedule 13G shall not be deemed an admission that the Reporting Persons are members of a group for purposes of Section 13 of the Securities Exchange Act or for any other purposes. Row 11 of each Reporting Person's cover page to this Schedule 13G sets forth the percentages of the shares of Class A common stock of the Issuer beneficially owned by such Reporting Person as of June 30, 2026 and is incorporated by reference. These percentages are based upon 7,696,293,669 shares of Class A common stock outstanding as of July 28, 2026, as reported in the Issuer's Quarterly Report on Form 10-Q, filed with the Securities and Exchange Commission (the "SEC") on August 4, 2026. Collectively, the Reporting Persons beneficially owned 5.5% of the Issuer's outstanding Class A common stock as of June 30, 2026. Row 5 of each Reporting Person's cover page to this Schedule 13G sets forth the sole power to vote or to direct the vote of securities of the Issuer beneficially owned by such Reporting Person as of June 30, 2026 and is incorporated by reference. Row 6 of each Reporting Person's cover page to this Schedule 13G sets forth the shared power to vote or to direct the vote of securities of the Issuer beneficially owned by such Reporting Person as of June 30, 2026 and is incorporated by reference. Row 7 of each Reporting Person's cover page to this Schedule 13G sets forth the sole power to dispose or to direct the disposition of securities of the Issuer beneficially owned by such Reporting Person as of June 30, 2026 and is incorporated by reference. Row 8 of each Reporting Person's cover page to this Schedule 13G sets forth the shared power to dispose or to direct the disposition of securities of the Issuer beneficially owned by such Reporting Person as of June 30, 2026 and is incorporated by reference. Y Y Y Y Y Y Exhibit 99.1 Joint Filing Agreement The Founders Fund II, LP /s/ Peter Thiel 08/14/2026 The Founders Fund II Principals Fund, LP /s/ Peter Thiel 08/14/2026 The Founders Fund II Entrepreneurs Fund, LP /s/ Peter Thiel 08/14/2026 The Founders Fund II Management, LLC /s/ Peter Thiel 08/14/2026 The Founders Fund III, LP /s/ Peter Thiel 08/14/2026 The Founders Fund III Principals Fund, LP /s/ Peter Thiel 08/14/2026 The Founders Fund III Entrepreneurs Fund, LP /s/ Peter Thiel 08/14/2026 The Founders Fund III Management, LLC /s/ Peter Thiel 08/14/2026 The Founders Fund IV, LP /s/ Peter Thiel 08/14/2026 The Founders Fund IV Principals Fund, LP /s/ Peter Thiel 08/14/2026 The Founders Fund IV Management, LLC /s/ Peter Thiel 08/14/2026 The Founders Fund V, LP /s/ Peter Thiel 08/14/2026 The Founders Fund V Principals Fund, LP /s/ Peter Thiel 08/14/2026 The Founders Fund V Entrepreneurs Fund, LP /s/ Peter Thiel 08/14/2026 The Founders Fund V Management, LLC /s/ Peter Thiel 08/14/2026 Lembas II, LP /s/ Peter Thiel 08/14/2026 The Founders Fund Alpha Management, LLC /s/ Peter Thiel 08/14/2026 The Founders Fund Growth II, LP /s/ Peter Thiel 08/14/2026 The Founders Fund Growth II Management, LP /s/ Peter Thiel 08/14/2026 FF GP Holdings, LLC /s/ Peter Thiel 08/14/2026 FF Upper Tier GP, LLC /s/ Peter Thiel 08/14/2026 The Founders Fund Growth, LP /s/ Peter Thiel 08/14/2026 The Founders Fund Growth Principals Fund, LP /s/ Peter Thiel 08/14/2026 Founders SPC, LP /s/ Peter Thiel 08/14/2026 The Founders Fund Growth Management, LLC /s/ Peter Thiel 08/14/2026 2025-005 Investments LLC /s/ Peter Thiel 08/14/2026 I'll Be Seeing You LLC /s/ Peter Thiel 08/14/2026 Barrel Vault LLC /s/ Peter Thiel 08/14/2026 Peter Thiel /s/ Peter Thiel 08/14/2026