Cook Sam Bryan 4

4 · Central Bancompany, Inc. · Filed Mar 4, 2026

Form 4

Period: 2026-03-02

DirectorExecutive Chairman10% Owner

Transactions

Holdings

Footnotes (6)

[F1]Represents a grant of 8,306 unvested time-based Restricted Stock Units (RSUs) issued pursuant to the Central Bancompany, Inc. 2025 Equity Incentive Plan, which vest in three (3) approximately equal installments beginning March 2027.
[F2]Includes 8,306 unvested RSUs issued in March 2026.
[F3]Includes 132,000 shares held jointly by the reporting person and their mother.
[F4]Held indirectly through Central Trust Company for the benefit of the reporting person.
[F5]Held indirectly through the voting trust established by the Amended and Restated Voting Trust Agreement, dated March 5, 2025, by and among Central Bancompany, Inc., the shareholders parties thereto, and Sam Bryan Cook, Robert M. Robuck and Robert R. Hermann, Jr. as trustees (the "Voting Trust") for the benefit of a trust for which the reporting person may be deemed to have investment power.
[F6]Held indirectly through the Voting Trust for the benefit of a trust for which the reporting person may be deemed to have investment power. The reporting person disclaims beneficial ownership of these shares except to the extent of their pecuniary interest, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

Signature

/s/ Jeremy W. Colbert, attorney-in-fact|2026-03-04

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