CSX Corporation
AT ˙ WBAG ˙ US1264081035
40,74 € ↑1,16 (2,94%)
2026-06-05
DEL PRIS
SecurityAT:CSX / CSX Corporation
InstitutionLMR Partners LLP
Latest Disclosed Ownership25,913 shares
Latest Disclosed Value $ 1,063,729
LMR Partners LLP ownership in CSX / CSX Corporation

On May 15, 2026 - LMR Partners LLP filed a 13F-HR form disclosing ownership of 25,913 shares of CSX Corporation (AT:CSX) valued at $905,271 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 9,818 shares of CSX Corporation. This represents a change in shares of 163.93% during the quarter. The current value of the position is $1,055,566 USD.

LMR Partners LLP has a history of taking positions in derivatives of the underlying security (CSX) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

AT:CSX / CSX Corporation Historical Put/Call Ratio
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 25,913 16,095 163.93 1,064 199.44 0.0023
2026-02-17 2025-12-31 13F CSX COM 126408103 9,818 8,749 818.43 356 859.46 0.0007
2025-11-14 2025-09-30 13F CSX COM 126408103 1,069 -743 -41.00 38 -37.29 0.0002
2025-08-14 2025-06-30 13F CSX COM 126408103 1,812 -21,842 -92.34 59 -91.52 0.0004
2025-05-15 2025-03-31 13F CSX COM 126408103 23,654 -3,906 -14.17 696 -21.71 0.0065
2025-02-14 2024-12-31 13F CSX COM 126408103 27,560 27,560 889 0.0075
2022-08-15 2022-06-30 13F CSX COM 126408103 0 -89,598 -100.00 0 -100.00
2022-05-16 2022-03-31 13F CSX COM 126408103 89,598 89,598 3,355 0.0390
2021-08-16 2021-06-30 13F CSX COM 126408103 0 -14,669 -100.00 0 -100.00
2021-05-17 2021-03-31 13F CSX COM 126408103 14,669 -8,686 -37.19 1,414 -33.27 0.0352
2021-02-16 2020-12-31 13F CSX COM 126408103 23,355 17,276 284.19 2,119 348.94 0.0329
2020-11-16 2020-09-30 13F CSX COM 126408103 6,079 -26,526 -81.36 472 -79.24 0.0097
2020-08-14 2020-06-30 13F CSX COM 126408103 32,605 23,119 243.72 2,274 313.45 0.0566
2020-08-14 2020-03-31 13F/A-1 CSX COM 126408103 9,486 9,486 550 0.0257
2020-05-15 2020-03-31 13F CSX COM 126408103 9,486 9,486 550 571.5894
2020-02-14 2019-12-31 13F CSX COM 126408103 0 -13,657 -100.00 0 -100.00
2019-11-14 2019-09-30 13F CSX COM 126408103 13,657 -28,330 -67.47 946 -70.88 0.0468
2019-08-14 2019-06-30 13F CSX COM 126408103 41,987 34,855 488.71 3,249 508.43 0.1184
2019-05-15 2019-03-31 13F CSX COM 126408103 7,132 -25,685 -78.27 534 -73.81 0.0272
2019-02-14 2018-12-31 13F CSX COM 126408103 32,817 32,817 2,039 0.0999
2018-11-14 2018-09-30 13F CSX COM 126408103 0 -9,560 -100.00 0 -100.00
2018-08-03 2018-06-30 13F CSX COM 126408103 9,560 -17,685 -64.91 610 -59.31 0.0316
2018-05-04 2018-03-31 13F CSX COM 126408103 27,245 0 0.00 1,499 0.00 0.1540
2018-01-30 2017-12-31 13F CSX COM 126408103 27,245 10,364 61.39 1,499 63.65 0.1540
2017-11-09 2017-09-30 13F CSX COM 126408103 16,881 -32,260 -65.65 916 -65.83 0.0992
2017-08-03 2017-06-30 13F CSX COM 126408103 49,141 49,141 2,681 0.1682
2017-05-11 2017-03-31 13F CSX COM 126408103 0 -32,218 -100.00 0 -100.00
2017-02-07 2016-12-31 13F CSX COM 126408103 32,218 32,218 0.00 1,158 0.1778
2016-11-04 2016-06-30 13F/A-1 CSX COM 126408103 0 -12,026 -100.00 0 -100.00
2016-05-04 2016-03-31 13F CSX COM 126408103 12,026 12,026 0.00 309 0.0338
2015-11-05 2015-09-30 13F CSX COM 126408103 0 -43,467 -100.00 0 -100.00
2015-08-10 2015-06-30 13F CSX COM 126408103 43,467 7,813 21.91 1,419 20.15 0.1734
2015-04-20 2015-03-31 13F CSX COM 126408103 35,654 -48,879 -57.82 1,181 -61.43 0.1633
2015-01-20 2014-12-31 13F CSX COM 126408103 84,533 75,794 867.31 3,062 993.57 0.4002
2014-10-20 2014-09-30 13F CSX COM 126408103 8,739 -907 -9.40 280 -5.72 0.0223
2014-07-10 2014-06-30 13F CSX COM 126408103 9,646 -23,913 -71.26 297 -69.44 0.0247
2014-04-25 2014-03-31 13F CSX COM 126408103 33,559 33,559 972 0.1362
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F CSX COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-17 2025-12-31 13F CSX COM Call 150,000 -25.00 5,438 -23.44 n/a n/a n/a
2025-11-14 2025-09-30 13F CSX COM Call 200,000 1,269.86 7,102 1,392.02 n/a n/a n/a
2025-08-14 2025-06-30 13F CSX COM Call 14,600 476 n/a n/a n/a
2025-05-15 2025-03-31 13F CSX COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-14 2024-12-31 13F CSX COM Call 91,000 2,937 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-05-15 2025-03-31 13F CSX COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-14 2024-12-31 13F CSX COM Put 56,900 1,836 n/a n/a n/a
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.