Norfolk Southern Corporation
MX ˙ BMV ˙ US6558441084
SecurityMX:NSC / Norfolk Southern Corporation
InstitutionCalamos Advisors LLC
Latest Disclosed Ownership244,559 shares
Latest Disclosed Value $ 70,188,433
Calamos Advisors LLC reports 14.97% increase in ownership of NSC / Norfolk Southern Corporation

On May 4, 2026 - Calamos Advisors LLC filed a 13F-HR form disclosing ownership of 244,559 shares of Norfolk Southern Corporation (MX:NSC) valued at $70,188,433 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 212,722 shares of Norfolk Southern Corporation. This represents a change in shares of 14.97% during the quarter.

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)
2026-05-04 2026-03-31 13F NORFOLK SOUTHN COM 655844108 244,559 31,837 14.97 70,188 14.28 0.2476
2026-01-29 2025-12-31 13F NORFOLK SOUTHN COM 655844108 212,722 -1,552 -0.72 61,417 -4.59 0.2307
2025-10-20 2025-09-30 13F NORFOLK SOUTHN COM 655844108 214,274 20,301 10.47 64,370 29.64 0.2377
2025-08-08 2025-06-30 13F NORFOLK SOUTHN COM 655844108 193,973 88,456 83.83 49,651 98.68 0.1954
2025-04-29 2025-03-31 13F NORFOLK SOUTHN COM 655844108 105,517 699 0.67 24,992 1.59 0.1088
2025-01-24 2024-12-31 13F NORFOLK SOUTHN COM 655844108 104,818 65,487 166.50 24,601 151.71 0.1029
2024-11-07 2024-09-30 13F NORFOLK SOUTHN COM 655844108 39,331 -965 -2.39 9,774 12.97 0.0423
2024-07-25 2024-06-30 13F NORFOLK SOUTHN COM 655844108 40,296 -1,471 -3.52 8,651 -18.73 0.0384
2024-05-08 2024-03-31 13F NORFOLK SOUTHN COM 655844108 41,767 -1,051 -2.45 10,645 5.18 0.0504
2024-01-31 2023-12-31 13F NORFOLK SOUTHN COM 655844108 42,818 -559 -1.29 10,121 18.49 0.0491
2023-10-26 2023-09-30 13F NORFOLK SOUTHN COM 655844108 43,377 0 0.00 8,542 -13.16 0.0444
2023-07-28 2023-06-30 13F NORFOLK SOUTHN COM 655844108 43,377 0 0.00 9,836 6.97 0.0487
2023-05-04 2023-03-31 13F NORFOLK SOUTHN COM 655844108 43,377 -5,424 -11.11 9,196 -23.53 0.0449
2023-01-26 2022-12-31 13F NORFOLK SOUTHN COM 655844108 48,801 -8,629 -15.03 12,026 -0.12 0.0564
2022-10-24 2022-09-30 13F NORFOLK SOUTHN COM 655844108 57,430 0 0.00 12,040 -7.76 0.0551
2022-08-01 2022-06-30 13F NORFOLK SOUTHN COM 655844108 57,430 1,547 2.77 13,053 -18.11 0.0563
2022-05-03 2022-03-31 13F NORFOLK SOUTHN COM 655844108 55,883 7,448 15.38 15,939 10.53 0.0598
2022-02-01 2021-12-31 13F NORFOLK SOUTHN COM 655844108 48,435 1,875 4.03 14,420 29.46 0.0539
2021-10-26 2021-09-30 13F NORFOLK SOUTHN COM 655844108 46,560 4,108 9.68 11,139 -1.14 0.0487
2021-07-22 2021-06-30 13F NORFOLK SOUTHN COM 655844108 42,452 9,655 29.44 11,267 27.93 0.0515
2021-04-12 2021-03-31 13F NORFOLK SOUTHN COM 655844108 32,797 1,014 3.19 8,807 16.62 0.0480
2021-01-27 2020-12-31 13F NORFOLK SOUTHN COM 655844108 31,783 -1,377 -4.15 7,552 6.43 0.0438
2020-10-26 2020-09-30 13F NORFOLK SOUTHN COM 655844108 33,160 -2,909 -8.07 7,096 12.05 0.0457
2020-07-27 2020-06-30 13F NORFOLK SOUTHERN COM 655844108 36,069 -2,308 -6.01 6,333 13.03 0.0448
2020-04-28 2020-03-31 13F NORFOLK SOUTHERN COM 655844108 38,377 -3,268 -7.85 5,603 -30.70 0.0440
2020-01-15 2019-12-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 41,645 -683 -1.61 8,085 6.31 0.0400
2019-10-21 2019-09-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 42,328 2,816 7.13 7,605 -3.44 0.0414
2019-08-07 2019-06-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 39,512 11,510 41.10 7,876 50.51 0.0437
2019-04-12 2019-03-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 28,002 -110 -0.39 5,233 24.48 0.0327
2019-01-24 2018-12-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 28,112 3,941 16.30 4,204 -3.64 0.0277
2018-10-22 2018-09-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 24,171 1,502 6.63 4,363 27.57 0.0240
2018-07-17 2018-06-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 22,669 -14,281 -38.65 3,420 -31.85 0.0209
2018-04-13 2018-03-31 13F NORFOLK SOTHN COMMON STOCK 655844108 36,950 1,680 4.76 5,018 -1.82 0.0327
2018-02-13 2017-12-31 13F NORFOLK SOTHN COMMON STOCK 655844108 35,270 -787 -2.18 5,111 7.19 0.0260
2017-10-25 2017-09-30 13F NORFOLK SOTHN COMMON STOCK 655844108 36,057 1,262 3.63 4,768 12.59 0.0369
2017-08-09 2017-06-30 13F NORFOLK SOTHN COMMON STOCK 655844108 34,795 5,568 19.05 4,235 29.39 0.0313
2017-04-20 2017-03-31 13F NORFOLK SOTHN COMMON STOCK 655844108 29,227 1,384 4.97 3,273 8.77 0.0258
2017-02-06 2016-12-31 13F NORFOLK SOTHN COMMON STOCK 655844108 27,843 -304 -1.08 3,009 10.14 0.0239
2016-11-14 2016-09-30 13F NORFOLK SOTHN COMMON STOCK 655844108 28,147 29 0.10 2,732 14.12 0.0195
2016-07-26 2016-06-30 13F NORFOLK SOTHN COMMON STOCK 655844108 28,118 11 0.04 2,394 2.31 0.0168
2016-04-25 2016-03-31 13F NORFOLK SOTHN COMMON STOCK 655844108 28,107 1,756 6.66 2,340 4.98 0.0155
2016-02-05 2015-12-31 13F NORFOLK SOTHN COMMON STOCK 655844108 26,351 -20,125 -43.30 2,229 -37.23 0.0142
2015-11-10 2015-09-30 13F NORFOLK SOTHN COMMON STOCK 655844108 46,476 16 0.03 3,551 -12.52 0.0245
2015-08-14 2015-06-30 13F NORFOLK SOTHN COMMON STOCK 655844108 46,460 -2,623 -5.34 4,059 -19.66 0.0251
2015-05-13 2015-03-31 13F NORFOLK SOTHN COMMON STOCK 655844108 49,083 28 0.06 5,052 -6.04 0.0317
2015-02-13 2014-12-31 13F NORFOLK SOTHN COMMON STOCK 655844108 49,055 255 0.52 5,377 -1.27 0.0356
2014-11-14 2014-09-30 13F NORFOLK SOTHN COMMON STOCK 655844108 48,800 0 0.00 5,446 8.31 0.0363
2014-08-14 2014-06-30 13F NORFOLK SOTHN COMMON STOCK 655844108 48,800 12,800 35.56 5,028 43.74 0.0319
2014-05-16 2014-03-31 13F NORFOLK SOTHN COMMON STOCK 655844108 36,000 0 0.00 3,498 4.67 0.0224
2014-02-14 2013-12-31 13F NORFOLK SOTHN COMMON STOCK 655844108 36,000 -20,000 -35.71 3,342 -22.85 0.0212
2013-11-14 2013-09-30 13F NORFOLK SOTHN COMMON STOCK 655844108 56,000 10,000 21.74 4,332 29.62 0.0272
2013-08-12 2013-06-30 13F NORFOLK SOTHN COMMON STOCK 655844108 46,000 46,000 3,342 0.0218
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.