X0609 4 2026-05-29 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 2026-05-29 4 J 0 1386029 0 D 178041 I See Footnotes Common Stock 2026-05-29 4 S 0 169411 16.0520 D 8630 I See Footnotes Common Stock 2026-05-29 4 S 0 7277 16.8503 D 1353 I See Footnotes Common Stock 2026-05-29 4 S 0 1353 17.9054 D 0 I See Footnotes Common Stock 2026-05-29 4 J 0 810384 0 D 1619596 I See Footnotes Common Stock 2026-05-29 4 S 0 1541092 16.0520 D 78504 I See Footnotes Common Stock 2026-05-29 4 S 0 66194 16.8503 D 12310 I See Footnotes Common Stock 2026-05-29 4 S 0 12310 17.9054 D 0 I See Footnotes Common Stock 2026-05-29 4 J 0 311208 0 A 660901 I See Footnotes Common Stock 2026-05-29 4 J 0 321623 0 A 405396 I See Footnotes Common Stock 2026-05-29 4 J 0 660901 0 D 0 I See Footnotes Common Stock 2026-05-29 4 J 0 350115 0 A 350115 I See Footnotes Maverick Advisors Fund, L.P. ("Maverick Advisors Fund") distributed these shares to its limited partners pro rata for no consideration (the "MAF Distribution"). These shares were sold by Maverick Advisors Fund as part of the MAF Distribution, and the proceeds of such sales were distributed to certain limited partners of Maverick Advisors Fund. Maverick Ventures Investment Fund, L.P. ("Maverick Ventures Fund") distributed these shares to its limited partners pro rata for no consideration (the "MVIF Distribution"). These shares were sold Maverick Ventures Fund as part of the MVIF Distribution, and the proceeds of such sales were distributed to certain limited partners of Maverick Ventures Fund. Received for no consideration in the pro rata distributions effected by Maverick Advisors Fund and Maverick Ventures Fund. The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.63 to $16.62 inclusive. The reporting persons undertake 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. Maverick Ventures distributed these shares to its managing members pro rata for no consideration. Received for no consideration in the pro rata distribution effected by Maverick Ventures. Held directly by 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 Ventures Fund. Maverick Ventures is the general partner of Maverick Ventures Fund. Held directly by Maverick Ventures. Held directly by family estate planning entities controlled by the Reporting Person. Held directly by Maverick Capital Advisors, L.P., which is the manager of Maverick Ventures. 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. The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.63 to $17.41 inclusive. The reporting persons undertake 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 reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.63 to $18.15 inclusive. The reporting persons undertake 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. /s/ David B. Singer 2026-05-29