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

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-06-03 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: CSX CORP (CSX) CIK: 0000277948 --- Reporting Owner --- Name: Boone Kevin S. CIK: 0001778769 Role: Officer (EVP & CFO) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-06-03 | Code: M (Exercise of derivative) Shares: +13,455 | Price: $22.70 Total Value: $305,428.50 Shares Owned After: 222,077 | Ownership: D (Direct) [Transaction #2] Security: Common Stock Date: 2026-06-03 | Code: M (Exercise of derivative) Shares: +123,253 | Price: $23.48 Total Value: $2,893,980.44 Shares Owned After: 345,330 | Ownership: D (Direct) [Transaction #3] Security: Common Stock Date: 2026-06-03 | Code: S (Open market sale) Shares: -136,708 | Price: $46.70 Total Value: $6,384,263.60 Shares Owned After: 208,622 | Ownership: D (Direct) Footnotes: [F1] Weighted average price, as these shares were sold in multiple transactions at prices ranging from $46.66 to $46.74, 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: 2026-06-03 | Code: M (Exercise of derivative) Shares: -13,455 | Price: $0.00 Exercisable: N/A | Expires: 2029-02-06 Shares Owned After: 0 | Ownership: D (Direct) Footnotes: [F3] The original exercise price of the option was $68.09. On June 28, 2021, the common stock of CSX Corporation split 3-for-1 resulting in an adjusted price of $22.70. [F4] On June 28, 2021, the common stock of CSX Corporation split 3-for-1 resulting in an adjustment to the number of shares subject to the option from 4,485 shares to 13,455 shares. [Transaction #2] Security: Option Date: 2026-06-03 | Code: M (Exercise of derivative) Shares: -123,253 | Price: $0.00 Exercisable: N/A | Expires: 2029-12-04 Shares Owned After: 123,254 | Ownership: D (Direct) Footnotes: [F5] The original exercise price of the option was $70.45. On June 28, 2021, the common stock of CSX Corporation split 3-for-1 resulting in an adjusted price of $23.48. [F6] On June 28, 2021, the common stock of CSX Corporation split 3-for-1 resulting in an adjustment to the number of shares subject to the option from 82,169 shares to 246,507 shares. --- Holdings --- [Holding #1] Security: Common Stock Ownership: I (Indirect) Footnotes: [F2] By Trustee, CSX Corporation Savings Thrift Plan. The number reflects equivalent shares of cash value held in the CSX Stock Fund, which amounts will fluctuate dependent upon the daily net asset value of the fund. [Holding #2] Security: Common Stock Ownership: I (Indirect) --- Footnotes (Complete Index) --- F1: Weighted average price, as these shares were sold in multiple transactions at prices ranging from $46.66 to $46.74, 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. F2: By Trustee, CSX Corporation Savings Thrift Plan. The number reflects equivalent shares of cash value held in the CSX Stock Fund, which amounts will fluctuate dependent upon the daily net asset value of the fund. F3: The original exercise price of the option was $68.09. On June 28, 2021, the common stock of CSX Corporation split 3-for-1 resulting in an adjusted price of $22.70. F4: On June 28, 2021, the common stock of CSX Corporation split 3-for-1 resulting in an adjustment to the number of shares subject to the option from 4,485 shares to 13,455 shares. F5: The original exercise price of the option was $70.45. On June 28, 2021, the common stock of CSX Corporation split 3-for-1 resulting in an adjusted price of $23.48. F6: On June 28, 2021, the common stock of CSX Corporation split 3-for-1 resulting in an adjustment to the number of shares subject to the option from 82,169 shares to 246,507 shares. --- Signature --- /s/ Kacey Heekin-Luchin, Attorney-in-Fact (2026-06-05)