Steel Dynamics, Inc.
US ˙ NasdaqGS ˙ US8581191009

SecuritySTLD / Steel Dynamics, Inc.
InstitutionNeuberger Berman Group LLC
Latest Disclosed Ownership514,527 shares
Latest Disclosed Value $ 92,399,695
Neuberger Berman Group LLC reports 9.84% decrease in ownership of STLD / Steel Dynamics, Inc.

On May 14, 2026 - Neuberger Berman Group LLC filed a 13F-HR form disclosing ownership of 514,527 shares of Steel Dynamics, Inc. (US:STLD) valued at $92,614,860 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 570,700 shares of Steel Dynamics, Inc.. This represents a change in shares of -9.84% during the quarter. The current value of the position is $138,150,500 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 STEEL DYNAMICS Common 858119100 514,527 -56,173 -9.84 92,400 -4.49 0.0359
2026-02-13 2025-12-31 13F STEEL DYNAMICS Common 858119100 570,700 247,790 76.74 96,747 114.88 0.0720
2025-11-12 2025-09-30 13F STEEL DYNAMICS Common 858119100 322,910 233,559 261.39 45,023 293.66 0.0329
2025-08-25 2025-06-30 13F/A-1 STEEL DYNAMICS Common 858119100 89,351 1,359 1.54 11,438 3.92 0.0088
2025-08-13 2025-06-30 13F STEEL DYNAMICS Common 858119100 89,351 1,359 11,438 0.0046
2025-05-13 2025-03-31 13F STEEL DYNAMICS Common 858119100 87,992 6,310 7.73 11,006 18.13 0.0092
2025-02-13 2024-12-31 13F STEEL DYNAMICS Common 858119100 81,682 -20,063 -19.72 9,317 -27.37 0.0074
2024-11-14 2024-09-30 13F STEEL DYNAMICS Common 858119100 101,745 10,765 11.83 12,828 8.89 0.0100
2024-11-14 2024-06-30 13F/A-1 STEEL DYNAMICS Common 858119100 90,980 21,734 31.39 11,782 14.78 0.0097
2024-08-13 2024-06-30 13F STEEL DYNAMICS Common 858119100 90,980 21,734 11,782 0.0097
2024-11-14 2024-03-31 13F/A-1 STEEL DYNAMICS Common 858119100 69,246 -6,912 -9.08 10,264 14.12 0.0085
2024-05-13 2024-03-31 13F STEEL DYNAMICS Common 858119100 69,246 -6,912 10,264 0.0085
2024-11-14 2023-12-31 13F/A-2 STEEL DYNAMICS Common 858119100 76,158 -16,009 -17.37 8,994 -8.99 0.0078
2024-02-09 2023-12-31 13F STEEL DYNAMICS Common 858119100 76,158 -16,009 8,994 0.0078
2023-11-14 2023-09-30 13F STEEL DYNAMICS Common 858119100 92,167 21,711 30.81 9,882 28.77 0.0090
2023-08-11 2023-06-30 13F STEEL DYNAMICS Common 858119100 70,456 -330 -0.47 7,675 -4.11 0.0069
2023-05-12 2023-03-31 13F STEEL DYNAMICS Common 858119100 70,786 -4,391 -5.84 8,003 8.97 0.0074
2023-02-13 2022-12-31 13F STEEL DYNAMICS Common 858119100 75,177 -5,414 -6.72 7,345 28.12 0.0072
2022-11-15 2022-09-30 13F STEEL DYNAMICS Common 858119100 80,591 7,361 10.05 5,732 18.06 0.0060
2022-08-15 2022-06-30 13F STEEL DYNAMICS Common 858119100 73,230 21,455 41.44 4,855 12.10 0.0049
2022-05-23 2022-03-31 13F/A-1 STEEL DYNAMICS Common 858119100 51,775 14,326 38.25 4,331 103.24 0.0037
2022-05-13 2022-03-31 13F STEEL DYNAMICS Common 858119100 51,775 14,326 3,963 0.0018
2022-02-11 2021-12-31 13F STEEL DYNAMICS Common 858119100 37,449 -27,830 -42.63 2,131 -42.25 0.0017
2021-11-12 2021-09-30 13F STEEL DYNAMICS Common 858119100 65,279 -37,236 -36.32 3,690 -37.71 0.0032
2021-08-13 2021-06-30 13F STEEL DYNAMICS Common 858119100 102,515 -30,611 -22.99 5,924 -11.63 0.0052
2021-05-13 2021-03-31 13F STEEL DYNAMICS Common 858119100 133,126 -79,297 -37.33 6,704 -14.06 0.0064
2021-02-10 2020-12-31 13F STEEL DYNAMICS Common 858119100 212,423 -96,124 -31.15 7,801 -11.67 0.0081
2020-11-12 2020-09-30 13F STEEL DYNAMICS Common 858119100 308,547 141,396 84.59 8,832 102.52 0.0105
2020-08-13 2020-06-30 13F STEEL DYNAMICS Common 858119100 167,151 85,797 105.46 4,361 137.79 0.0054
2020-05-14 2020-03-31 13F STEEL DYNAMICS Common 858119100 81,354 -4,156 -4.86 1,834 -36.98 0.0028
2020-02-12 2019-12-31 13F STEEL DYNAMICS Common 858119100 85,510 -19,942 -18.91 2,910 -7.41 0.0034
2019-11-13 2019-09-30 13F STEEL DYNAMICS Common 858119100 105,452 34,300 48.21 3,143 46.32 0.0038
2019-08-13 2019-06-30 13F STEEL DYNAMICS Common 858119100 71,152 3,417 5.04 2,148 -10.09 0.0026
2019-05-13 2019-03-31 13F STEEL DYNAMICS Common 858119100 67,735 -6,681 -8.98 2,389 6.89 0.0029
2019-02-12 2018-12-31 13F STEEL DYNAMICS Common 858119100 74,416 33,598 82.31 2,235 21.14 0.0031
2018-11-16 2018-09-30 13F/A-1 STEEL DYNAMICS Common 858119100 40,818 -4,135 -9.20 1,845 -10.70 0.0021
2018-11-13 2018-09-30 13F STEEL DYNAMICS Common 858119100 40,818 -4,135 1,845
2018-08-13 2018-06-30 13F STEEL DYNAMICS Common 858119100 44,953 4,630 11.48 2,066 15.87 0.0023
2018-05-08 2018-03-31 13F STEEL DYNAMICS Common 858119100 40,323 -305,656 -88.35 1,783 -88.05 0.0020
2018-02-14 2017-12-31 13F STEEL DYNAMICS Common 858119100 345,979 272,588 371.42 14,922 489.80 0.0172
2017-11-15 2017-09-30 13F STEEL DYNAMICS COMMON STOCK 858119100 73,391 600 0.82 2,530 -2.95 0.0032
2017-08-08 2017-06-30 13F STEEL DYNAMICS COMMON STOCK 858119100 72,791 4,684 6.88 2,607 10.14 0.0033
2017-05-10 2017-03-31 13F STEEL DYNAMICS COMMON STOCK 858119100 68,107 -137,453 -66.87 2,367 -67.63 0.0031
2017-02-06 2016-12-31 13F STEEL DYNAMICS COMMON STOCK 858119100 205,560 133,684 185.99 7,313 307.18 0.0098
2016-11-02 2016-09-30 13F STEEL DYNAMICS COMMON STOCK 858119100 71,876 46,800 186.63 1,796 192.51 0.0024
2016-08-05 2016-06-30 13F STEEL DYNAMICS COMMON STOCK 858119100 25,076 -233,268 -90.29 614 -89.44 0.0008
2016-05-06 2016-03-31 13F STEEL DYNAMICS COMMON STOCK 858119100 258,344 798 0.31 5,815 26.36 0.0080
2016-01-28 2015-12-31 13F STEEL DYNAMICS COMMON STOCK 858119100 257,546 25,500 10.99 4,602 15.43 0.0060
2015-11-10 2015-09-30 13F STEEL DYNAMICS COMMON STOCK 858119100 232,046 -1,123,833 -82.89 3,987 -85.80 0.0051
2015-07-31 2015-06-30 13F STEEL DYNAMICS COMMON STOCK 858119100 1,355,879 105,197 8.41 28,087 11.73 0.0312
2015-05-06 2015-03-31 13F STEEL DYNAMICS COMMON STOCK 858119100 1,250,682 1,250,682 0.00 25,139 0.0268
2015-02-05 2014-12-31 13F STEEL DYNAMICS COMMON STOCK 858119100 0 -1,418,866 -100.00 0 -100.00
2014-11-04 2014-09-30 13F STEEL DYNAMICS COMMON STOCK 858119100 1,418,866 293,027 26.03 32,080 58.74 0.0329
2014-08-05 2014-06-30 13F STEEL DYNAMICS COMMON STOCK 858119100 1,125,839 -3,036 -0.27 20,209 0.63 0.0197
2014-05-05 2014-03-31 13F STEEL DYNAMICS COMMON STOCK 858119100 1,128,875 113,437 11.17 20,082 1.21 0.0204
2014-02-11 2013-12-31 13F STEEL DYNAMICS COMMON STOCK 858119100 1,015,438 187,911 22.71 19,842 43.41 0.0204
2013-10-29 2013-09-30 13F/A-1 STEEL DYNAMICS COMMON STOCK 858119100 827,527 485,969 142.28 13,836 171.67 0.0154
2013-08-13 2013-06-30 13F STEEL DYNAMICS COMMON STOCK 858119100 341,558 341,558 5,093 0.0061
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.