CSX Corporation
US ˙ NasdaqGS ˙ US1264081035

SecurityCSX / CSX Corporation
InstitutionQuantinno Capital Management LP
Latest Disclosed Ownership711,808 shares
Latest Disclosed Value $ 29,219,733
Quantinno Capital Management LP reports 21.65% increase in ownership of CSX / CSX Corporation

On May 15, 2026 - Quantinno Capital Management LP filed a 13F-HR form disclosing ownership of 711,808 shares of CSX Corporation (US:CSX) valued at $29,219,718 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 585,149 shares of CSX Corporation. This represents a change in shares of 21.65% during the quarter. The current value of the position is $32,906,884 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 711,808 126,659 21.65 29,220 37.75 0.0488
2026-02-17 2025-12-31 13F CSX COM 126408103 585,149 127,016 27.72 21,212 30.38 0.0426
2025-11-14 2025-09-30 13F CSX COM 126408103 458,133 143,570 45.64 16,268 58.50 0.0444
2025-08-14 2025-06-30 13F CSX COM 126408103 314,563 98,410 45.53 10,264 61.36 0.0443
2025-05-12 2025-03-31 13F CSX COM 126408103 216,153 26,441 13.94 6,361 3.90 0.0414
2025-02-14 2024-12-31 13F CSX COM 126408103 189,712 43,384 29.65 6,122 21.18 0.0602
2024-11-14 2024-09-30 13F CSX COM 126408103 146,328 57,978 65.62 5,053 70.96 0.0657
2024-08-14 2024-06-30 13F CSX COM 126408103 88,350 3,513 4.14 2,955 -6.04 0.0531
2024-05-14 2024-03-31 13F CSX COM 126408103 84,837 13,109 18.28 3,145 26.46 0.0684
2024-02-14 2023-12-31 13F CSX COM 126408103 71,728 14,703 25.78 2,487 41.79 0.0870
2023-11-14 2023-09-30 13F CSX COM 126408103 57,025 -14,940 -20.76 1,754 -28.52 0.0798
2023-08-04 2023-06-30 13F CSX COM 126408103 71,965 45,029 167.17 2,454 204.47 0.1402
2023-05-03 2023-03-31 13F CSX COM 126408103 26,936 -16,313 -37.72 806 -39.85 0.0533
2023-02-13 2022-12-31 13F CSX COM 126408103 43,249 34,721 407.14 1,340 490.31 0.1000
2022-11-08 2022-09-30 13F CSX COM 126408103 8,528 8,528 227 0.0292
2019-11-14 2019-09-30 13F CSX COM 126408103 0 -2,647 -100.00 0 -100.00
2019-08-14 2019-06-30 13F CSX COM 126408103 2,647 2,647 205 0.1203
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.