X0609 4 2026-05-21 0002007825 Infleqtion, Inc. INFQ 0001240366 SINGER DAVID B false C/O INFLEQTION, INC. 1315 WEST CENTURY DRIVE, SUITE 150 LOUISVILLE CO 80027 1 0 0 0 0 Common Stock 2026-05-21 4 S 0 55939 14.6934 D 19761 I See Footnotes Common Stock 2026-05-21 4 S 0 100350 14.6934 D 35450 I See Footnotes Common Stock 2026-05-21 4 S 0 1432671 14.6934 D 4784711 I See Footnotes Common Stock 2026-05-21 4 S 0 390066 14.6934 D 137795 I See Footnotes Common Stock 2026-05-21 4 S 0 2262112 14.6934 D 7554800 I See Footnotes Common Stock 2026-05-21 4 S 0 2128025 14.6934 D 751744 I See Footnotes Common Stock 2026-05-22 4 S 0 19761 17.0408 D 0 I See Footnotes Common Stock 2026-05-22 4 S 0 35450 17.0408 D 0 I See Footnotes Common Stock 2026-05-22 4 S 0 1669369 16.7033 D 3115342 I See Footnotes Common Stock 2026-05-22 4 S 0 137795 17.0408 D 0 I See Footnotes Common Stock 2026-05-22 4 S 0 2635848 16.7033 D 4918952 I See Footnotes Common Stock 2026-05-22 4 S 0 751744 17.0408 D 0 I See Footnotes Held directly by Maverick Long Fund, Ltd. ("Maverick Long Fund"). The Reporting Person may be deemed to have a pecuniary interest in such securities by virtue of his limited partner interest in Maverick Long Fund. Held directly by Maverick Fund II, Ltd. ("Maverick Fund II"). The Reporting Person may be deemed to have a pecuniary interest in such securities by virtue of his limited partner interest in Maverick Fund II. Held directly by Maverick Advisors Fund, L.P. ("Maverick Advisors Fund"). Maverick Capital Ventures, LLC ("Maverick Ventures") is the general partner of Maverick Advisors Fund. The Reporting Person is a managing partner of Maverick Ventures. Held directly by Maverick Designated Investments Fund, L.P. ("MDI"). The Reporting Person may be deemed to have a pecuniary interest in such securities by virtue of his indirect limited partner interest in MDI. Held directly by Maverick Ventures Investment Fund, L.P. ("Maverick Ventures Fund"). Maverick Ventures is the general partner of Maverick Ventures Fund. Held directly by Maverick Silicon Fund, L.P. ("Maverick Silicon Fund"). The Reporting Person may be deemed to have a pecuniary interest in such securities by virtue of his limited partner interest in Maverick Silicon Fund. The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.5565 to $17.0408 inclusive. The Reporting Person undertakes to provide the Issuer, any securityholder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within such range. The Reporting Person disclaims, for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended, beneficial ownership of these securities, except to the extent of his pecuniary interest therein. /s/ Jason D. Hall, Attorney-in-Fact for David B. Singer 2026-05-27