Csx 4: Vautrinot Suzanne M bought 4,455 shares of Common Stock at… (Mar 2, 2026)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-02-26 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: CSX CORP (CSX) CIK: 0000277948 --- Reporting Owner --- Name: Vautrinot Suzanne M CIK: 0001589791 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-02-26 | Code: A (Grant or award) Shares: +4,455 | Price: $0.00 Shares Owned After: 39,702 | Ownership: I (Indirect) | Nature: CSX Corporation Directors Deferred Compensation Footnotes: [F1] Exempt payment of director's fees and/or annual retainer in the form of CSX Common Stock pursuant to the 2019 CSX Stock and Incentive Award Plan. [F2] Includes 554 shares acquired through the reinvestment of dividends since February 14, 2025, the date of the last reportable transaction. [F3] By Trustee, CSX Directors Deferred Compensation Plan (the "Plan"). The shares are payable after the reporting person ceases to be a director or otherwise pursuant to the applicable deferral election under the Plan. --- Footnotes (Complete Index) --- F1: Exempt payment of director's fees and/or annual retainer in the form of CSX Common Stock pursuant to the 2019 CSX Stock and Incentive Award Plan. F2: Includes 554 shares acquired through the reinvestment of dividends since February 14, 2025, the date of the last reportable transaction. F3: By Trustee, CSX Directors Deferred Compensation Plan (the "Plan"). The shares are payable after the reporting person ceases to be a director or otherwise pursuant to the applicable deferral election under the Plan. --- Signature --- /s/ Kacey D. Heekin-Luchin, Attorney-in-Fact (2026-03-02)