As of early 2026, the majority of CSX Corporation stock is held by institutional investors, who own approximately 70-75% of the company. The "Big Three" asset management firms—Vanguard Group, BlackRock, and State Street Corporation—consistently hold the largest blocks of shares, with Vanguard typically being the top shareholder. Other major institutional owners include Dimensional Fund Advisors and T. Rowe Price. Individual "insider" ownership (by executives and board members) accounts for a very small fraction, usually less than 1%. For individual investors, CSX offers a Direct Stock Purchase Plan administered by Broadridge, allowing people to buy shares directly without a traditional brokerage account, though the institutional giants remain the primary movers of the stock's value.