CSX Corporation
US ˙ NasdaqGS ˙ US1264081035

SecurityCSX / CSX Corporation
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership430,568 shares
Latest Disclosed Value $ 17,676,409
Advisor Group Holdings, Inc. reports 4.28% increase in ownership of CSX / CSX Corporation

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 430,568 shares of CSX Corporation (US:CSX) valued at $17,674,816 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 412,905 shares of CSX Corporation. This represents a change in shares of 4.28% during the quarter. The current value of the position is $19,995,578 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)
2026-05-15 2026-03-31 13F CSX COM 126408103 430,568 17,663 4.28 17,676 18.08 0.0151
2026-02-17 2025-12-31 13F CSX COM 126408103 412,905 -145,196 -26.02 14,969 -21.18 0.0219
2025-11-14 2025-09-30 13F CSX COM 126408103 558,101 -19,191 -3.32 18,991 2.35 0.0266
2025-09-04 2025-06-30 13F/A-1 SX COM 126408103 577,292 135,724 30.74 18,555 42.77 0.0330
2025-08-13 2025-06-30 13F SX COM 126408103 476,274 34,706 15,133 0.0175
2025-05-12 2025-03-31 13F CSX COM 126408103 441,568 -72,494 -14.10 12,996 -20.31 0.0290
2025-06-06 2024-12-31 13F/A-1 CSX COM 126408103 514,062 48,507 10.42 16,310 1.45 0.0366
2025-02-07 2024-12-31 13F CSX COM 126408103 417,514 -48,041 13,760 0.0351
2024-11-13 2024-09-30 13F CSX COM 126408103 465,555 -44,991 -8.81 16,076 -5.87 0.0363
2024-08-13 2024-06-30 13F CSX COM 126408103 510,546 46,065 9.92 17,080 -0.78 0.0404
2024-05-10 2024-03-31 13F CSX COM 126408103 464,481 -197,463 -29.83 17,215 -24.98 0.0385
2024-02-12 2023-12-31 13F CSX COM 126408103 661,944 -262,575 -28.40 22,948 -19.29 0.0402
2023-11-13 2023-09-30 13F CSX COM 126408103 924,519 260,551 39.24 28,432 25.64 0.0420
2023-08-21 2023-06-30 13F/A-1 CSX COM 126408103 663,968 28,963 4.56 22,631 19.02 0.0406
2023-08-10 2023-06-30 13F CSX COM 126408103 677,374 42,369 22,617 0.0061
2023-05-12 2023-03-31 13F CSX COM 126408103 635,005 20,089 3.27 19,015 -0.20 0.0358
2023-02-10 2022-12-31 13F CSX COM 126408103 614,916 64,799 11.78 19,053 29.99 0.0386
2022-11-14 2022-09-30 13F CSX COM 126408103 550,117 -3,631 -0.66 14,657 -8.97 0.0335
2022-08-10 2022-06-30 13F CSX COM 126408103 553,748 -36,926 -6.25 16,101 -21.27 0.0355
2022-05-04 2022-03-31 13F CSX COM 126408103 590,674 60,426 11.40 20,450 2.65 0.0397
2022-02-03 2021-12-31 13F CSX COM 126408103 530,248 9,685 1.86 19,923 28.57 0.0377
2021-11-05 2021-09-30 13F CSX COM 126408103 520,563 192,309 58.59 15,496 47.06 0.0323
2021-08-02 2021-06-30 13F CSX COM 126408103 328,254 152,427 86.69 10,537 -37.88 0.0228
2021-05-13 2021-03-31 13F CSX COM 126408103 175,827 650 0.37 16,962 6.68 0.0408
2021-02-10 2020-12-31 13F CSX COM 126408103 175,177 666 0.38 15,900 17.75 0.0425
2020-11-12 2020-09-30 13F CSX COM 126408103 174,511 -9,045 -4.93 13,503 5.46 0.0404
2020-08-14 2020-06-30 13F CSX COM 126408103 183,556 -76,048 -29.29 12,804 18.59 0.0430
2020-05-18 2020-03-31 13F CSX COM 126408103 259,604 259,604 10,797 0.0442
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.