CSX Corporation
US ˙ NasdaqGS ˙ US1264081035

SecurityCSX / CSX Corporation
InstitutionJump Financial, LLC
Latest Disclosed Ownership23,557 shares
Latest Disclosed Value $ 967,015
Jump Financial, LLC reports 34.75% decrease in ownership of CSX / CSX Corporation

On May 14, 2026 - Jump Financial, LLC filed a 13F-HR form disclosing ownership of 23,557 shares of CSX Corporation (US:CSX) valued at $967,015 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 36,100 shares of CSX Corporation. This represents a change in shares of -34.75% during the quarter. The current value of the position is $1,089,040 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F CSX Common Stock 126408103 23,557 -12,543 -34.75 967 -26.07 0.0115
2026-02-17 2025-12-31 13F CSX Common Stock 126408103 36,100 -148,361 -80.43 1,309 -80.03 0.0161
2025-11-13 2025-09-30 13F CSX Common Stock 126408103 184,461 52,148 39.41 6,550 51.73 0.0784
2025-08-13 2025-06-30 13F CSX Common Stock 126408103 132,313 -703,672 -84.17 4,317 -82.45 0.0476
2025-05-14 2025-03-31 13F CSX Common Stock 126408103 835,985 802,742 2,414.77 24,603 2,195.06 0.3382
2025-02-13 2024-12-31 13F CSX Common Stock 126408103 33,243 -19,819 -37.35 1,073 -41.48 0.0224
2024-11-14 2024-09-30 13F CSX Common Stock 126408103 53,062 -165,195 -75.69 1,832 -74.90 0.0374
2024-11-14 2024-06-30 13F/A-1 CSX Common Stock 126408103 218,257 137,328 169.69 7,301 143.33 0.1459
2024-08-14 2024-06-30 13F CSX Common Stock 126408103 218,257 137,328 7,301 0.1459
2024-05-13 2024-03-31 13F CSX Common Stock 126408103 80,929 67,929 522.53 3,000 566.67 0.0821
2024-10-21 2023-12-31 13F/A-2 CSX COM 126408103 13,000 -4,400 -25.29 451 -15.89 0.4500
2024-10-21 2023-12-31 13F/A-1 CSX Common Stock 126408103 12,107 -5,293 420 0.0092
2024-02-07 2023-12-31 13F CSX Common Stock 126408103 12,107 -5,293 420 0.0139
2024-10-21 2023-09-30 13F/A-2 CSX COM 126408103 17,400 -9,104 -34.35 535 -40.75 0.9735
2024-10-21 2023-09-30 13F/A-1 CSX Common Stock 126408103 19,700 -6,804 606 0.0141
2023-11-07 2023-09-30 13F CSX Common Stock 126408103 19,700 -6,804 606 0.0232
2024-10-21 2023-06-30 13F/A-1 CSX Common Stock 126408103 26,504 8,504 47.24 904 67.84 0.0339
2023-08-07 2023-06-30 13F CSX Common Stock 126408103 14,504 -3,496 495 0.0186
2024-10-21 2023-03-31 13F/A-2 CSX COM 126408103 18,000 -18,700 -50.95 539 -52.64 1.0234
2024-10-21 2023-03-31 13F/A-1 CSX Common Stock 126408103 10,548 -26,152 316 0.0084
2023-05-03 2023-03-31 13F CSX Common Stock 126408103 10,548 -26,152 316 0.0131
2023-02-14 2022-12-31 13F CSX Common Stock 126408103 36,700 -198,316 -84.38 1,137 -81.85 0.0603
2022-11-07 2022-09-30 13F CSX Common Stock 126408103 235,016 51,504 28.07 6,260 17.38 0.2450
2022-08-09 2022-06-30 13F CSX Common Stock 126408103 183,512 170,622 1,323.68 5,333 1,004.14 0.2303
2022-05-12 2022-03-31 13F CSX Common Stock 126408103 12,890 -3,127 -19.52 483 -19.77 0.0208
2022-02-10 2021-12-31 13F CSX Common Stock 126408103 16,017 16,017 602 0.0378
2021-11-12 2021-09-30 13F CSX Common Stock 126408103 0 -6,457 -100.00 0 -100.00
2021-08-13 2021-06-30 13F CSX Common Stock 126408103 6,457 3,342 107.29 207 -31.00 0.0200
2021-05-17 2021-03-31 13F CSX Common Stock 126408103 3,115 -899 -22.40 300 -17.58 0.0280
2021-02-12 2020-12-31 13F CSX Common Stock 126408103 4,014 -6,500 -61.82 364 -55.39 0.0619
2020-11-13 2020-09-30 13F CSX Common Stock 126408103 10,514 10,514 816 0.1639
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.