X0609 4 2026-05-28 0002007825 Infleqtion, Inc. INFQ 0001116268 JOHNSON KRISTINA M false C/O INFLEQTION, INC. 1315 WEST CENTURY DRIVE, SUITE 150 LOUISVILLE CO 80027 true false false false 0 Common Stock 2026-05-28 4 S 0 20000 18 D 13120 I See footnote Common Stock 2026-05-28 4 M 0 30000 0.90 A 30000 D Common Stock 2026-05-28 4 S 0 30000 16.45 D 0 D Stock Option (Right to Buy) 0.90 2026-05-28 4 M 0 30000 0 D 2034-06-05 Common Stock 30000 343458 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.85 to $18.05 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Held directly by Catalyzer Ventures, LP Fund I ("Catalyzer"). Dr. Johnson is a general partner of Catalyzer. Dr. Johnson disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.45 to $16.47 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The shares vest on a monthly basis beginning on June 1, 2024 with respect to 1/36 of the total number of shares until such time as the option is 100% vested, subject to the continuous service of the Reporting Person as of each such date. /s/ Jason D. Hall, Attorney-in-Fact 2026-06-01