Southern Copper Corporation
BG ˙ BUL ˙ US84265V1052
SecurityBG:PCU / Southern Copper Corporation
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership52,629 shares
Latest Disclosed Value $ 9,055,346
Marshall Wace, Llp reports 56.23% decrease in ownership of PCU / Southern Copper Corporation

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 52,629 shares of Southern Copper Corporation (BG:PCU) valued at $9,055,346 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 120,234 shares of Southern Copper Corporation. This represents a change in shares of -56.23% 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)
2026-05-14 2026-03-31 13F SOUTHERN COPPER COMMON STOCK 84265V105 52,629 -67,605 -56.23 9,055 -47.50 0.0043
2026-02-13 2025-12-31 13F SOUTHERN COPPER COMMON STOCK 84265V105 120,234 -343,772 -74.09 17,250 -69.37 0.0157
2025-11-13 2025-09-30 13F SOUTHERN COPPER COMMON STOCK 84265V105 464,006 -220,689 -32.23 56,312 -18.71 0.0571
2025-08-13 2025-06-30 13F SOUTHERN COPPER COMMON STOCK 84265V105 684,695 -761,259 -52.65 69,271 -48.74 0.0780
2025-05-15 2025-03-31 13F SOUTHERN COPPER COMMON STOCK 84265V105 1,445,954 447,031 44.75 135,139 48.45 0.1716
2025-02-13 2024-12-31 13F SOUTHERN COPPER COMMON STOCK 84265V105 998,923 331,319 49.63 91,032 17.88 0.1094
2024-11-14 2024-09-30 13F SOUTHERN COPPER COMMON STOCK 84265V105 667,604 633,071 1,833.23 77,222 1,975.83 0.0941
2024-08-14 2024-06-30 13F SOUTHERN COPPER COMMON STOCK 84265V105 34,533 19,026 122.69 3,721 125.32 0.0050
2024-05-15 2024-03-31 13F SOUTHERN COPPER COMMON STOCK 84265V105 15,507 -27,331 -63.80 1,652 -55.22 0.0025
2024-02-14 2023-12-31 13F SOUTHERN COPPER COMMON STOCK 84265V105 42,838 -592,929 -93.26 3,687 -92.30 0.0062
2023-11-14 2023-09-30 13F SOUTHERN COPPER COMMON STOCK 84265V105 635,767 72,009 12.77 47,867 18.35 0.0970
2023-08-14 2023-06-30 13F SOUTHERN COPPER COMMON STOCK 84265V105 563,758 361,208 178.33 40,444 161.87 0.0790
2023-05-15 2023-03-31 13F SOUTHERN COPPER COMMON STOCK 84265V105 202,550 -7,859 -3.74 15,444 21.55 0.0328
2023-02-14 2022-12-31 13F SOUTHERN COPPER COMMON STOCK 84265V105 210,409 210,409 12,707 0.0286
2022-08-15 2022-06-30 13F SOUTHERN COPPER COMMON STOCK 84265V105 0 -54,730 -100.00 0 -100.00
2022-05-16 2022-03-31 13F SOUTHERN COPPER COMMON STOCK 84265V105 54,730 49,249 898.54 4,155 1,125.66 0.0079
2022-02-14 2021-12-31 13F SOUTHERN COPPER COMMON STOCK 84265V105 5,481 -47,399 -89.64 339 -88.58 0.0006
2021-11-15 2021-09-30 13F SOUTHERN COPPER COMMON STOCK 84265V105 52,880 -679,075 -92.78 2,968 -93.70 0.0123
2021-08-13 2021-06-30 13F SOUTHERN COPPER COMMON STOCK 84265V105 731,955 -301,784 -29.19 47,079 -32.89 0.2294
2021-05-17 2021-03-31 13F SOUTHERN COPPER COMMON STOCK 84265V105 1,033,739 421,496 68.84 70,156 75.96 0.3217
2021-02-16 2020-12-31 13F SOUTHERN COPPER COMMON STOCK 84265V105 612,243 400,530 189.19 39,870 315.96 0.2160
2020-11-16 2020-09-30 13F SOUTHERN COPPER COMMON STOCK 84265V105 211,713 153,106 261.24 9,585 311.37 0.0613
2020-08-13 2020-06-30 13F SOUTHERN COPPER COMMON STOCK 84265V105 58,607 44,638 319.55 2,330 492.88 0.0163
2020-05-15 2020-03-31 13F SOUTHERN COPPER COMMON STOCK 84265V105 13,969 13,969 -76.16 393 -83.13 0.0039
2019-08-14 2019-06-30 13F SOUTHERN COPPER COMMON STOCK 84265V105 0 -288,057 -100.00 0 -100.00
2019-05-29 2019-03-31 13F/A-1 SOUTHERN COPPER COMMON STOCK 84265V105 288,057 156,989 119.78 11,431 183.51 0.1074
2019-05-14 2019-03-31 13F SOUTHERN COPPER COMMON STOCK 84265V105 288,057 156,989 11,431
2019-02-14 2018-12-31 13F SOUTHERN COPPER COMMON STOCK 84265V105 131,068 -68,171 -34.22 4,032 -53.09 0.0412
2018-12-06 2018-09-30 13F/A-1 SOUTHERN COPPER COMMON STOCK 84265V105 199,239 199,239 52.01 8,595 113.17 0.0731
2018-11-14 2018-09-30 13F SOUTHERN COPPER COMMON STOCK 84265V105 199,239 199,239 8,595
2017-05-12 2017-03-31 13F SOUTHERN COPPER COMMON STOCK 84265V105 0 -103,823 -100.00 0 -100.00
2017-02-10 2016-12-31 13F SOUTHERN COPPER COMMON STOCK 84265V105 103,823 43,028 70.78 3,316 107.38 0.0218
2016-11-10 2016-09-30 13F SOUTHERN COPPER COMMON STOCK 84265V105 60,795 -5,347 -8.08 1,599 -10.42 0.0114
2016-08-12 2016-06-30 13F SOUTHERN COPPER COMMON STOCK 84265V105 66,142 66,142 1,785 0.0150
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.