ArcelorMittal S.A. - Depositary Receipt (Common Stock)
US ˙ NYSE ˙ US03938L2034

SecurityMT / ArcelorMittal S.A. - Depositary Receipt (Common Stock)
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership44,321 shares
Latest Disclosed Value $ 2,303,806
Marshall Wace, Llp reports 54.38% increase in ownership of MT / ArcelorMittal S.A. - Depositary Receipt (Common Stock)

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 44,321 shares of ArcelorMittal S.A. - Depositary Receipt (Common Stock) (US:MT) valued at $2,303,806 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 28,709 shares of ArcelorMittal S.A. - Depositary Receipt (Common Stock). This represents a change in shares of 54.38% during the quarter. The current value of the position is $3,175,600 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)
2026-05-14 2026-03-31 13F ARCELORMITTAL-NY NY REG SHRS 03938L203 44,321 15,612 54.38 2,304 76.07 0.0023
2026-02-13 2025-12-31 13F ARCELORMITTAL-NY NY REG SHRS 03938L203 28,709 28,709 1,308 0.0012
2024-08-14 2024-06-30 13F ARCELORMITTAL-NY NY REG SHRS 03938L203 0 -14,611 -100.00 0 -100.00
2024-05-15 2024-03-31 13F ARCELORMITTAL-NY NY REG SHRS 03938L203 14,611 -789,033 -98.18 403 -98.24 0.0006
2024-02-14 2023-12-31 13F ARCELORMITTAL-NY NY REG SHRS 03938L203 803,644 -84,448 -9.51 22,815 2.64 0.0386
2023-11-14 2023-09-30 13F ARCELORMITTAL-NY NY REG SHRS 03938L203 888,092 -886,064 -49.94 22,229 -54.17 0.0450
2023-08-14 2023-06-30 13F ARCELORMITTAL-NY NY REG SHRS 03938L203 1,774,156 1,349,018 317.31 48,505 278.80 0.0947
2023-05-15 2023-03-31 13F ARCELORMITTAL-NY NY REG SHRS 03938L203 425,138 425,138 12,805 0.0272
2023-02-14 2022-12-31 13F ARCELORMITTAL-NY NY REG SHRS 03938L203 0 -91,543 -100.00 0 -100.00
2022-11-14 2022-09-30 13F ARCELORMITTAL-NY NY REG SHRS 03938L203 91,543 -1,210,173 -92.97 1,823 -93.80 0.0040
2022-08-15 2022-06-30 13F ARCELORMITTAL-NY NY REG SHRS 03938L203 1,301,716 931,790 251.89 29,419 148.41 0.0605
2022-05-16 2022-03-31 13F ARCELORMITTAL-NY NY REG SHRS 03938L203 369,926 369,926 11,843 0.0224
2021-02-16 2020-12-31 13F ARCELORMITTAL-NY NY REG SHRS 03938L203 0 -215,731 -100.00 0 -100.00
2020-11-16 2020-09-30 13F ARCELORMITTAL-NY NY REG SHRS 03938L203 215,731 215,731 2,858 0.0183
2019-08-14 2019-06-30 13F ARCELORMITTAL-NY NY REG SHRS 03938L203 0 -45,292 -100.00 0 -100.00
2019-05-29 2019-03-31 13F/A-1 ARCELORMITTAL-NY NY REG SHRS 03938L203 45,292 45,292 923 0.0087
2019-05-14 2019-03-31 13F ARCELORMITTAL-NY NY REG SHRS 03938L203 45,292 45,292 923
2019-02-14 2018-12-31 13F ARCELORMITTAL-NY NY REG SHRS 03938L203 0 -104,322 -100.00 0 -100.00
2018-12-06 2018-09-30 13F/A-1 ARCELORMITTAL-NY NY REG SHRS 03938L203 104,322 -380,354 -78.48 3,219 -76.92 0.0274
2018-11-14 2018-09-30 13F ARCELORMITTAL-NY NY REG SHRS 03938L203 104,322 -380,354 3,219
2018-08-14 2018-06-30 13F ARCELORMITTAL-NY NY REG SHRS 03938L203 484,676 484,676 13,949 0.2087
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.