Steel Dynamics, Inc.
US ˙ NasdaqGS ˙ US8581191009

SecuritySTLD / Steel Dynamics, Inc.
InstitutionTobam
Latest Disclosed Ownership4,947 shares
Latest Disclosed Value $ 890
Tobam reports 982.49% increase in ownership of STLD / Steel Dynamics, Inc.

On May 12, 2026 - Tobam filed a 13F-HR form disclosing ownership of 4,947 shares of Steel Dynamics, Inc. (US:STLD) valued at $890,460 USD as of March 31, 2026. The entity filed a previous 13F-HR on March 2, 2026 disclosing 457 shares of Steel Dynamics, Inc.. The current value of the position is $1,361,068 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)
2026-05-12 2026-03-31 13F STEEL DYNAMICS COM 858119100 4,947 4,490 982.49 1 0.2317
2026-03-02 2025-12-31 13F STEEL DYNAMICS COM 858119100 457 0 0.00 0 0.0189
2025-11-07 2025-09-30 13F STEEL DYNAMICS COM 858119100 457 457 0 0.0232
2024-08-01 2024-06-30 13F/A-1 STEEL DYNAMICS COM 858119100 0 -1,000 -100.00 0 0.0000
2024-07-29 2024-06-30 13F STEEL DYNAMICS COM 858119100 0 0
2024-05-02 2024-03-31 13F STEEL DYNAMICS COM 858119100 1,000 523 109.64 0 0.0133
2024-01-26 2023-12-31 13F STEEL DYNAMICS COM 858119100 477 477 0 0.0049
2023-05-03 2023-03-31 13F STEEL DYNAMICS COM 858119100 0 -1,219 -100.00 0 0.0000
2023-02-02 2022-12-31 13F STEEL DYNAMICS COM 858119100 1,219 261 27.24 0 -100.00 0.0079
2022-11-02 2022-09-30 13F STEEL DYNAMICS COM 858119100 958 958 68 0.0048
2022-08-02 2022-06-30 13F STEEL DYNAMICS COM 858119100 0 -681 -100.00 0 -100.00
2022-04-25 2022-03-31 13F STEEL DYNAMICS COM 858119100 681 0 0.00 57 35.71 0.0029
2022-02-15 2021-12-31 13F STEEL DYNAMICS COM 858119100 681 0 0.00 42 5.00 0.0019
2021-11-12 2021-09-30 13F STEEL DYNAMICS COM 858119100 681 0 0.00 40 -2.44 0.0017
2021-08-11 2021-06-30 13F STEEL DYNAMICS COM 858119100 681 681 41 0.0016
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.