Norfolk Southern Corporation
MX ˙ BMV ˙ US6558441084
SecurityMX:NSC / Norfolk Southern Corporation
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership643,513 shares
Latest Disclosed Value $ 184,688,231
Marshall Wace, Llp reports 179.99% increase in ownership of NSC / Norfolk Southern Corporation

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 643,513 shares of Norfolk Southern Corporation (MX:NSC) valued at $184,688,231 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 229,833 shares of Norfolk Southern Corporation. This represents a change in shares of 179.99% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-14 2026-03-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 643,513 413,680 179.99 184,688 178.32 0.1839
2026-02-13 2025-12-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 229,833 70,102 43.89 66,357 38.29 0.0604
2025-11-13 2025-09-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 159,731 -63,743 -28.52 47,985 -16.11 0.0487
2025-08-13 2025-06-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 223,474 -188,453 -45.75 57,203 -41.37 0.0644
2025-05-15 2025-03-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 411,927 156,419 61.22 97,565 62.70 0.1239
2025-02-13 2024-12-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 255,508 -434,820 -62.99 59,968 -65.04 0.0721
2024-11-14 2024-09-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 690,328 66,393 10.64 171,547 28.07 0.2089
2024-08-14 2024-06-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 623,935 -157,205 -20.13 133,953 -32.72 0.1789
2024-05-15 2024-03-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 781,140 451,057 136.65 199,089 155.16 0.3032
2024-02-14 2023-12-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 330,083 -291,967 -46.94 78,025 -36.31 0.1321
2023-11-14 2023-09-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 622,050 22,616 3.77 122,500 -9.88 0.2481
2023-08-14 2023-06-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 599,434 63,606 11.87 135,928 19.66 0.2655
2023-05-15 2023-03-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 535,828 522,064 3,792.97 113,596 3,249.90 0.2414
2023-02-14 2022-12-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 13,764 13,764 3,392 0.0076
2022-11-14 2022-09-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 0 -183,218 -100.00 0 -100.00
2022-08-15 2022-06-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 183,218 171,131 1,415.83 41,644 1,108.12 0.0857
2022-05-16 2022-03-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 12,087 -15,473 -56.14 3,447 -57.98 0.0065
2022-02-14 2021-12-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 27,560 27,560 8,203 0.0151
2021-11-15 2021-09-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 0 -3,614 -100.00 0 -100.00
2021-08-13 2021-06-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 3,614 3,614 959 0.0047
2021-05-17 2021-03-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 0 -29,017 -100.00 0 -100.00
2021-02-16 2020-12-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 29,017 -46,406 -61.53 6,895 -57.28 0.0374
2020-11-16 2020-09-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 75,423 51,692 217.82 16,139 287.31 0.1033
2020-08-13 2020-06-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 23,731 -181,571 -88.44 4,167 -86.10 0.0292
2020-05-15 2020-03-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 205,302 177,572 640.36 29,974 456.72 0.2994
2020-02-14 2019-12-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 27,730 -86,932 -75.82 5,384 -73.86 0.0370
2019-11-14 2019-09-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 114,662 67,355 142.38 20,600 118.45 0.1619
2019-08-14 2019-06-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 47,307 -49,972 -51.37 9,430 -48.13 0.0776
2019-05-29 2019-03-31 13F/A-1 NORFOLK SOUTHERN COMMON STOCK 655844108 97,279 92,760 2,052.67 18,180 2,589.35 0.1709
2019-05-14 2019-03-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 97,279 92,760 18,180
2019-02-14 2018-12-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 4,519 -16,241 -78.23 676 -81.96 0.0069
2018-12-06 2018-09-30 13F/A-1 NORFOLK SOUTHERN COMMON STOCK 655844108 20,760 -172,286 -89.25 3,747 -87.13 0.0319
2018-11-14 2018-09-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 20,760 -172,286 3,747
2018-08-14 2018-06-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 193,046 191,341 11,222.35 29,125 12,453.88 0.4358
2018-05-15 2018-03-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 1,705 1,705 -99.12 232 -99.20 0.0096
2018-03-29 2017-12-31 13F/A-1 NORFOLK SOUTHERN COMMON STOCK 655844108 0 -5,524 -100.00 0 -100.00
2017-11-13 2017-09-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 5,524 2,634 91.14 729 106.52 0.0339
2017-08-04 2017-06-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 2,890 -10,187 -77.90 353 -75.90 0.0155
2017-05-12 2017-03-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 13,077 -374,944 -96.63 1,465 -96.51 0.0707
2017-02-10 2016-12-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 388,021 -232 -0.06 41,933 11.28 0.2757
2016-11-10 2016-09-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 388,253 -173,311 -30.86 37,684 -21.17 0.2679
2016-08-12 2016-06-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 561,564 200,887 55.70 47,806 59.22 0.4020
2016-05-13 2016-03-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 360,677 -137,201 -27.56 30,026 -28.70 0.2893
2016-02-10 2015-12-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 497,878 380,879 325.54 42,115 371.14 0.3952
2015-11-12 2015-09-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 116,999 50,585 76.17 8,939 54.07 0.1098
2015-08-14 2015-06-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 66,414 66,414 -43.24 5,802 -35.09 0.0757
2015-02-17 2014-12-31 13F NORFOLK SOUTHERN COMMON STOCK 655844108 0 -19,633 -100.00 0 -100.00
2014-11-13 2014-09-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 19,633 16,039 446.27 2,191 492.16 0.0316
2014-08-14 2014-06-30 13F NORFOLK SOUTHERN COMMON STOCK 655844108 3,594 3,594 370 0.0054
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.