Steel Dynamics, Inc.
US ˙ NasdaqGS ˙ US8581191009

SecuritySTLD / Steel Dynamics, Inc.
InstitutionOppenheimer & Co Inc
Latest Disclosed Ownership8,145 shares
Latest Disclosed Value $ 1,466,100
Oppenheimer & Co Inc reports 0.27% decrease in ownership of STLD / Steel Dynamics, Inc.

On April 23, 2026 - Oppenheimer & Co Inc filed a 13F-HR form disclosing ownership of 8,145 shares of Steel Dynamics, Inc. (US:STLD) valued at $1,466,100 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 8,167 shares of Steel Dynamics, Inc.. This represents a change in shares of -0.27% during the quarter. The current value of the position is $2,240,934 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)
2026-04-23 2026-03-31 13F STEEL DYNAMICS COM 858119100 8,145 -22 -0.27 1,466 6.00 0.0179
2026-02-02 2025-12-31 13F STEEL DYNAMICS COM 858119100 8,167 -8 -0.10 1,384 21.42 0.0197
2025-11-06 2025-09-30 13F STEEL DYNAMICS COM 858119100 8,175 51 0.63 1,140 9.62 0.0139
2025-07-31 2025-06-30 13F STEEL DYNAMICS COM 858119100 8,124 -378 -4.45 1,040 -2.26 0.0138
2025-04-23 2025-03-31 13F STEEL DYNAMICS COM 858119100 8,502 -408 -4.58 1,063 4.63 0.0161
2025-02-05 2024-12-31 13F STEEL DYNAMICS COM 858119100 8,910 16 0.18 1,016 -9.37 0.0152
2024-11-05 2024-09-30 13F STEEL DYNAMICS COM 858119100 8,894 -718 -7.47 1,121 -9.89 0.0171
2024-08-08 2024-06-30 13F STEEL DYNAMICS COM 858119100 9,612 -195 -1.99 1,245 -14.38 0.0198
2024-05-07 2024-03-31 13F STEEL DYNAMICS COM 858119100 9,807 340 3.59 1,454 29.96 0.0241
2024-02-13 2023-12-31 13F STEEL DYNAMICS COM 858119100 9,467 1,271 15.51 1,118 27.33 0.0205
2023-11-08 2023-09-30 13F STEEL DYNAMICS COM 858119100 8,196 115 1.42 879 -0.23 0.0181
2023-08-03 2023-06-30 13F STEEL DYNAMICS COM 858119100 8,081 -629 -7.22 880 -10.57 0.0176
2023-05-10 2023-03-31 13F STEEL DYNAMICS COM 858119100 8,710 -73 -0.83 985 14.69 0.0209
2023-02-08 2022-12-31 13F STEEL DYNAMICS COM 858119100 8,783 -113 -1.27 858 35.97 0.0195
2022-11-14 2022-09-30 13F STEEL DYNAMICS COM 858119100 8,896 -599 -6.31 631 0.48 0.0148
2022-08-08 2022-06-30 13F STEEL DYNAMICS COM 858119100 9,495 550 6.15 628 -15.82 0.0135
2022-05-12 2022-03-31 13F STEEL DYNAMICS COM 858119100 8,945 -196 -2.14 746 31.57 0.0134
2022-02-02 2021-12-31 13F STEEL DYNAMICS COM 858119100 9,141 -7,185 -44.01 567 -40.63 0.0099
2021-11-12 2021-09-30 13F STEEL DYNAMICS COM 858119100 16,326 10,680 189.16 955 183.38 0.0179
2021-08-03 2021-06-30 13F STEEL DYNAMICS COM 858119100 5,646 5,646 337 0.0060
2021-02-11 2020-12-31 13F STEEL DYNAMICS COM 858119100 0 -12,903 -100.00 0 -100.00
2020-11-13 2020-09-30 13F STEEL DYNAMICS COM 858119100 12,903 12,903 369 0.0092
2020-02-07 2019-12-31 13F STEEL DYNAMICS COM 858119100 0 -33,303 -100.00 0 -100.00
2019-10-31 2019-09-30 13F STEEL DYNAMICS COM 858119100 33,303 2,489 8.08 992 6.55 0.0270
2019-08-09 2019-06-30 13F STEEL DYNAMICS COM 858119100 30,814 5,229 20.44 931 3.22 0.0253
2019-04-24 2019-03-31 13F STEEL DYNAMICS COM 858119100 25,585 -1,934 -7.03 902 9.07 0.0241
2019-01-29 2018-12-31 13F STEEL DYNAMICS COM 858119100 27,519 -163 -0.59 827 -33.89 0.0259
2018-10-26 2018-09-30 13F STEEL DYNAMICS COM 858119100 27,682 -5,455 -16.46 1,251 -17.86 0.0318
2018-08-10 2018-06-30 13F STEEL DYNAMICS COM 858119100 33,137 -1,188 -3.46 1,523 0.33 0.0413
2018-05-01 2018-03-31 13F STEEL DYNAMICS COM 858119100 34,325 -690 -1.97 1,518 0.53 0.0390
2018-02-07 2017-12-31 13F STEEL DYNAMICS COM 858119100 35,015 5,579 18.95 1,510 48.77 0.0389
2017-11-09 2017-09-30 13F STEEL DYNAMICS COM 858119100 29,436 -6,263 -17.54 1,015 -20.58 0.0272
2017-08-09 2017-06-30 13F STEEL DYNAMICS COM 858119100 35,699 35,699 21.28 1,278 25.91 0.0352
2016-04-26 2016-03-31 13F STEEL DYNAMICS COM 858119100 0 -36,845 -100.00 0 -100.00
2016-02-03 2015-12-31 13F STEEL DYNAMICS COM 858119100 36,845 0 0.00 658 3.95 0.0196
2015-11-13 2015-09-30 13F STEEL DYNAMICS COM 858119100 36,845 0 0.00 633 -17.04 0.0192
2015-08-12 2015-06-30 13F STEEL DYNAMICS COM 858119100 36,845 -198 -0.53 763 2.42 0.0212
2015-05-08 2015-03-31 13F STEEL DYNAMICS COM 858119100 37,043 -14,886 -28.67 745 -27.32 0.0203
2015-02-10 2014-12-31 13F STEEL DYNAMICS COM 858119100 51,929 506 0.98 1,025 -11.87 0.0294
2014-11-12 2014-09-30 13F STEEL DYNAMICS COM 858119100 51,423 15,880 44.68 1,163 82.29 0.0346
2014-08-14 2014-06-30 13F STEEL DYNAMICS COM 858119100 35,543 2,261 6.79 638 7.77 0.0192
2014-05-09 2014-03-31 13F STEEL DYNAMICS COM 858119100 33,282 5,772 20.98 592 10.04 0.0177
2014-02-12 2013-12-31 13F STEEL DYNAMICS COM 858119100 27,510 -2,513 -8.37 538 7.17 0.0172
2013-11-01 2013-09-30 13F STEEL DYNAMICS COM 858119100 30,023 30,023 502 0.0176
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.