X0306 4 2023-02-15 0 0000277948 CSX CORP CSX 0001778769 Boone Kevin S. 500 WATER STREET JACKSONVILLE FL 32202 0 1 0 0 EVP - Sales & Marketing Common Stock 2023-02-15 4 A 0 19893 31.67 A 180805 D Common Stock 1682 I CSX Corporation 401(k) Plan Option 31.67 2023-02-15 4 A 0 63927 31.67 A 2033-02-15 Common Stock 63927 63927 D Restricted stock units awarded pursuant to the CSX Corporation 2023 - 2025 Long-Term Incentive Plan. The units vest in three equal installments on February 15, 2024, February 15, 2025 and February 15, 2026. 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. Options awarded pursuant to the CSX Corporation 2023 - 2025 Long-Term Incentive Plan. The options vest in three equal installments on February 15, 2024, February 15, 2025 and February 15, 2026. /s/ Michael S. Burns, Attorney-in-Fact 2023-02-17