SCHEDULE 13G

CHURCHILL CAP CORP X

Class A Ordinary Shares, par value $0.0001 per share (the "Shares") · CUSIP: G2130T108

Event date: 2025-10-23

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• Citadel Securities GP LLC

  Shares: 1,525,806.00 · Class: 3.7%

• Citadel Securities LLC

  Shares: 1,525,806.00 · Class: 3.7%

• Citadel Securities Group LP

  Shares: 1,525,806.00 · Class: 3.7%

• Citadel Advisors LLC

  Shares: 686,861.00 · Class: 1.6%

• Citadel Advisors Holdings LP

  Shares: 686,861.00 · Class: 1.6%

• Citadel GP LLC

  Shares: 686,861.00 · Class: 1.6%

• Kenneth Griffin

  Shares: 2,212,667.00 · Class: 5.3%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.