CSX CORP (CSX) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-07-24 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: CSX CORP (CSX) CIK: 0000277948 --- Reporting Owner --- Name: Burns Michael S. CIK: 0002051357 Role: Officer (SVP - CLO & Corp Secy) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-07-24 | Code: M (Exercise of derivative) Shares: +13,000 | Price: $26.50 Total Value: $344,500.00 Shares Owned After: 72,643 | Ownership: D (Direct) Footnotes: [F1] Includes 662 shares acquired under the CSX Employee Stock Purchase Plan on June 30, 2026. [Transaction #2] Security: Common Stock Date: 2026-07-24 | Code: S (Open market sale) Shares: -13,000 | Price: $52.68 Total Value: $684,840.00 Shares Owned After: 59,643 | Ownership: D (Direct) Footnotes: [F2] Weighted average price, as these shares were sold in multiple transactions at prices ranging from $52.67 to $52.71, inclusive. The Reporting Person undertakes to provide to CSX Corporation, any security holder of CSX Corporation, or the staff of the Securities and Exchange Commission, upon request, additional information regarding the number of shares sold at each separate price within the range set forth in this footnote. --- Derivative Transactions --- [Transaction #1] Security: Option Date: 2026-07-24 | Code: M (Exercise of derivative) Shares: -13,000 | Price: $0.00 Exercisable: N/A | Expires: 2030-02-18 Shares Owned After: 10,457 | Ownership: D (Direct) --- Holdings --- [Holding #1] Security: Common Stock Ownership: I (Indirect) Footnotes: [F3] By Trustee, CSX Corporation Savings Thrift Plan. The number reflects equivalent shares of case value held in the CSX Stock Fund, which amounts will fluctuate dependent upon the daily net asset value of the fund. --- Footnotes (Complete Index) --- F1: Includes 662 shares acquired under the CSX Employee Stock Purchase Plan on June 30, 2026. F2: Weighted average price, as these shares were sold in multiple transactions at prices ranging from $52.67 to $52.71, inclusive. The Reporting Person undertakes to provide to CSX Corporation, any security holder of CSX Corporation, or the staff of the Securities and Exchange Commission, upon request, additional information regarding the number of shares sold at each separate price within the range set forth in this footnote. F3: By Trustee, CSX Corporation Savings Thrift Plan. The number reflects equivalent shares of case value held in the CSX Stock Fund, which amounts will fluctuate dependent upon the daily net asset value of the fund. --- Signature --- /s/ Kacey D. Heekin-Luchin, Attorney-in-Fact (2026-07-27)