Steel Dynamics, Inc.
GB ˙ LSE ˙ US8581191009
SecurityGB:0ADX / Steel Dynamics, Inc.
InstitutionAviva Plc
Latest Disclosed Ownership122,563 shares
Latest Disclosed Value $ 22,061,340
Aviva Plc reports 3.09% increase in ownership of 0ADX / Steel Dynamics, Inc.

On May 14, 2026 - Aviva Plc filed a 13F-HR form disclosing ownership of 122,563 shares of Steel Dynamics, Inc. (GB:0ADX) valued at $22,061,340 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 118,885 shares of Steel Dynamics, Inc.. This represents a change in shares of 3.09% 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 STEEL DYNAMICS COM 858119100 122,563 3,678 3.09 22,061 9.51 0.0370
2026-02-12 2025-12-31 13F STEEL DYNAMICS COM 858119100 118,885 5,612 4.95 20,145 27.56 0.0340
2025-11-13 2025-09-30 13F STEEL DYNAMICS COM 858119100 113,273 6,272 5.86 15,794 15.30 0.0287
2025-08-07 2025-06-30 13F STEEL DYNAMICS COM 858119100 107,001 3,265 3.15 13,697 5.56 0.0283
2025-05-15 2025-03-31 13F STEEL DYNAMICS COM 858119100 103,736 15,193 17.16 12,975 28.47 0.0313
2025-02-13 2024-12-31 13F STEEL DYNAMICS COM 858119100 88,543 82,697 1,414.59 10,100 1,270.42 0.0262
2024-11-14 2024-09-30 13F STEEL DYNAMICS COM 858119100 5,846 -20,776 -78.04 737 -78.62 0.0019
2024-08-02 2024-06-30 13F STEEL DYNAMICS COM 858119100 26,622 3,579 15.53 3,448 0.94 0.0096
2024-05-14 2024-03-31 13F STEEL DYNAMICS COM 858119100 23,043 -5,554 -19.42 3,416 1.13 0.0112
2024-02-09 2023-12-31 13F STEEL DYNAMICS COM 858119100 28,597 778 2.80 3,377 13.25 0.0121
2023-11-13 2023-09-30 13F STEEL DYNAMICS COM 858119100 27,819 -1,176 -4.06 2,983 -5.57 0.0125
2023-08-10 2023-06-30 13F STEEL DYNAMICS COM 858119100 28,995 -81,471 -73.75 3,158 -74.71 0.0129
2023-05-12 2023-03-31 13F STEEL DYNAMICS COM 858119100 110,466 -133,277 -54.68 12,489 -47.55 0.0565
2023-02-14 2022-12-31 13F/A-2 STEEL DYNAMICS COM 858119100 243,743 26,889 12.40 23,814 54.77 0.1171
2023-02-10 2022-12-31 13F/A-1 STEEL DYNAMICS COM 858119100 243,743 26,889 5,894 0.0281
2023-02-09 2022-12-31 13F STEEL DYNAMICS COM 858119100 243,743 26,889 24 0.1144
2022-11-14 2022-09-30 13F STEEL DYNAMICS COM 858119100 216,854 -58,635 -21.28 15,386 -15.57 0.0887
2022-08-04 2022-06-30 13F STEEL DYNAMICS COM 858119100 275,489 210,913 326.61 18,224 238.23 0.0970
2022-05-13 2022-03-31 13F STEEL DYNAMICS COM 858119100 64,576 2,772 4.49 5,388 40.46 0.0269
2022-02-10 2021-12-31 13F STEEL DYNAMICS COM 858119100 61,804 -21,914 -26.18 3,836 -21.65 0.0161
2021-11-12 2021-09-30 13F STEEL DYNAMICS COM 858119100 83,718 -12,590 -13.07 4,896 -14.70 0.0218
2021-08-10 2021-06-30 13F STEEL DYNAMICS COM 858119100 96,308 27,097 39.15 5,740 63.39 0.0252
2021-05-13 2021-03-31 13F STEEL DYNAMICS COM 858119100 69,211 -1,492 -2.11 3,513 34.75 0.0172
2021-02-10 2020-12-31 13F STEEL DYNAMICS COM 858119100 70,703 5,734 8.83 2,607 40.16 0.0136
2020-11-12 2020-09-30 13F STEEL DYNAMICS COM 858119100 64,969 -2,732 -4.04 1,860 5.32 0.0110
2020-08-13 2020-06-30 13F/A-1 STEEL DYNAMICS COM 858119100 67,701 -4,720 -6.52 1,766 8.21 0.0110
2020-08-13 2020-06-30 13F STEEL DYNAMICS COM 858119100 67,701 -4,720 1,766 5,346.4394
2020-05-14 2020-03-31 13F STEEL DYNAMICS COM 858119100 72,421 -1,160 -1.58 1,632 -34.85 0.0120
2020-02-10 2019-12-31 13F STEEL DYNAMICS COM 858119100 73,581 -1,269 -1.70 2,505 12.28 0.0152
2019-11-12 2019-09-30 13F STEEL DYNAMICS COM 858119100 74,850 -6,260 -7.72 2,231 -8.94 0.0151
2019-07-30 2019-06-30 13F STEEL DYNAMICS COM 858119100 81,110 -1,640 -1.98 2,450 -16.07 0.0168
2019-05-14 2019-03-31 13F STEEL DYNAMICS COM 858119100 82,750 -1,888 -2.23 2,919 14.79 0.0196
2019-02-12 2018-12-31 13F STEEL DYNAMICS COM 858119100 84,638 -21,752 -20.45 2,543 -47.11 0.0190
2018-11-13 2018-09-30 13F STEEL DYNAMICS COM 858119100 106,390 106,390 4,808 0.0264
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.