CSX Corporation
US ˙ NasdaqGS ˙ US1264081035

SecurityCSX / CSX Corporation
InstitutionGAMMA Investing LLC
Latest Disclosed Ownership69,690 shares
Latest Disclosed Value $ 2,860,774
GAMMA Investing LLC reports 34.20% increase in ownership of CSX / CSX Corporation

On April 6, 2026 - GAMMA Investing LLC filed a 13F-HR form disclosing ownership of 69,690 shares of CSX Corporation (US:CSX) valued at $2,860,774 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 5, 2026 disclosing 51,931 shares of CSX Corporation. This represents a change in shares of 34.20% during the quarter. The current value of the position is $3,274,733 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)
2026-04-06 2026-03-31 13F CSX CORP COM Common Stock 126408103 69,690 17,759 34.20 2,861 51.97 0.1336
2026-01-05 2025-12-31 13F CSX CORP COM Common Stock 126408103 51,931 5,403 11.61 1,882 13.92 0.0946
2025-10-02 2025-09-30 13F CSX CORP COM Common Stock 126408103 46,528 3,722 8.70 1,652 18.34 0.0911
2025-07-14 2025-06-30 13F CSX CORP COM Common Stock 126408103 42,806 6,896 19.20 1,397 32.20 0.0883
2025-04-15 2025-03-31 13F/A-1 CSX CORP COM Common Stock 126408103 35,910 6,766 23.22 1,057 12.34 0.0793
2025-04-07 2025-03-31 13F CSX CORP COM Common Stock 126408103 1,056,831 1,027,687 36 0.1913
2025-01-03 2024-12-31 13F CSX CORP COM Common Stock 126408103 29,144 -1,162 -3.83 940 -10.13 0.0802
2024-10-04 2024-09-30 13F CSX CORP COM Common Stock 126408103 30,306 11,730 1,046 0.1037
2024-10-07 2024-09-30 13F CSX CORP COM Common Stock 126408103 30,306 11,730 63.15 1,046 68.44 0.1037
2024-07-02 2024-06-30 13F CSX CORP COM Common Stock 126408103 18,576 2,926 18.70 621 7.07 0.0847
2024-04-05 2024-03-31 13F CSX CORP COM Common Stock 126408103 15,650 3,670 30.63 580 35.83 0.1181
2024-02-01 2023-12-31 13F CSX CORP COM Common Stock 126408103 11,980 11,980 428 0.1158
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.