Steel Dynamics, Inc.
US ˙ NasdaqGS ˙ US8581191009

SecuritySTLD / Steel Dynamics, Inc.
InstitutionEngineers Gate Manager LP
Latest Disclosed Ownership72,637 shares
Latest Disclosed Value $ 13,074,660
Engineers Gate Manager LP reports 1,157.35% increase in ownership of STLD / Steel Dynamics, Inc.

On May 15, 2026 - Engineers Gate Manager LP filed a 13F-HR form disclosing ownership of 72,637 shares of Steel Dynamics, Inc. (US:STLD) valued at $13,074,660 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 5,777 shares of Steel Dynamics, Inc.. This represents a change in shares of 1,157.35% during the quarter. The current value of the position is $19,984,618 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)
2026-05-15 2026-03-31 13F STEEL DYNAMICS COM 858119100 72,637 66,860 1,157.35 13,075 1,236.81 0.1634
2026-02-17 2025-12-31 13F STEEL DYNAMICS COM 858119100 5,777 -2,592 -30.97 979 -16.12 0.0116
2025-11-14 2025-09-30 13F STEEL DYNAMICS COM 858119100 8,369 -30,585 -78.52 1,167 -76.61 0.0134
2025-08-14 2025-06-30 13F STEEL DYNAMICS COM 858119100 38,954 38,954 4,987 0.0620
2025-05-15 2025-03-31 13F STEEL DYNAMICS COM 858119100 0 -66,772 -100.00 0 -100.00
2025-02-14 2024-12-31 13F STEEL DYNAMICS COM 858119100 66,772 55,198 476.91 7,617 422.00 0.1326
2024-11-14 2024-09-30 13F STEEL DYNAMICS COM 858119100 11,574 -14,673 -55.90 1,459 -57.06 0.0285
2024-08-14 2024-06-30 13F STEEL DYNAMICS COM 858119100 26,247 20,199 333.98 3,399 279.24 0.0766
2024-05-15 2024-03-31 13F STEEL DYNAMICS COM 858119100 6,048 -19,464 -76.29 896 -70.25 0.0236
2024-02-14 2023-12-31 13F STEEL DYNAMICS COM 858119100 25,512 15,024 143.25 3,013 167.97 0.0860
2023-11-14 2023-09-30 13F STEEL DYNAMICS COM 858119100 10,488 -4,403 -29.57 1,125 -30.70 0.0416
2023-08-14 2023-06-30 13F STEEL DYNAMICS COM 858119100 14,891 13,046 707.10 1,622 679.81 0.0613
2023-05-15 2023-03-31 13F STEEL DYNAMICS COM 858119100 1,845 -9,323 -83.48 209 -80.93 0.0087
2023-02-14 2022-12-31 13F STEEL DYNAMICS COM 858119100 11,168 3,802 51.62 1,091 108.60 0.0655
2022-11-14 2022-09-30 13F STEEL DYNAMICS COM 858119100 7,366 -3,164 -30.05 523 -24.96 0.0325
2022-08-15 2022-06-30 13F STEEL DYNAMICS COM 858119100 10,530 4,023 61.83 697 28.36 0.0255
2022-05-16 2022-03-31 13F STEEL DYNAMICS COM 858119100 6,507 6,507 543 0.0212
2021-11-15 2021-09-30 13F STEEL DYNAMICS COM 858119100 0 -3,450 -100.00 0 -100.00
2021-08-16 2021-06-30 13F STEEL DYNAMICS COM 858119100 3,450 -3,507 -50.41 206 -41.64 0.0132
2021-05-17 2021-03-31 13F STEEL DYNAMICS COM 858119100 6,957 6,957 353 0.0175
2021-02-16 2020-12-31 13F STEEL DYNAMICS COM 858119100 0 -9,365 -100.00 0 -100.00
2020-11-16 2020-09-30 13F STEEL DYNAMICS COM 858119100 9,365 -48,537 -83.83 268 -82.26 0.0126
2020-08-17 2020-06-30 13F STEEL DYNAMICS COM 858119100 57,902 37,436 182.92 1,511 227.77 0.0769
2020-05-15 2020-03-31 13F STEEL DYNAMICS COM 858119100 20,466 -94,125 -82.14 461 -88.18 0.0332
2020-02-14 2019-12-31 13F STEEL DYNAMICS COM 858119100 114,591 55,450 93.76 3,901 121.40 0.1715
2019-11-14 2019-09-30 13F STEEL DYNAMICS COM 858119100 59,141 50,558 589.05 1,762 580.31 0.0895
2019-08-14 2019-06-30 13F STEEL DYNAMICS COM 858119100 8,583 -181,034 -95.47 259 -96.13 0.0143
2019-05-15 2019-03-31 13F STEEL DYNAMICS COM 858119100 189,617 78,191 70.17 6,688 99.82 0.4050
2019-02-14 2018-12-31 13F STEEL DYNAMICS COM 858119100 111,426 111,426 3,347 0.2678
2018-08-03 2018-06-30 13F STEEL DYNAMICS COM 858119100 0 -90,249 -100.00 0 -100.00
2018-05-07 2018-03-31 13F STEEL DYNAMICS COM 858119100 90,249 90,249 3,991 0.2660
2018-02-01 2017-12-31 13F STEEL DYNAMICS COM 858119100 0 -74,043 -100.00 0 -100.00
2017-11-13 2017-09-30 13F STEEL DYNAMICS COM 858119100 74,043 -1,899 -2.50 2,552 -6.14 0.2147
2017-08-10 2017-06-30 13F STEEL DYNAMICS COM 858119100 75,942 57,356 308.60 2,719 320.90 0.2450
2017-05-05 2017-03-31 13F STEEL DYNAMICS COM 858119100 18,586 -106,423 -85.13 646 -85.48 0.0641
2017-02-10 2016-12-31 13F STEEL DYNAMICS COM 858119100 125,009 125,009 4,448 0.4773
2016-11-09 2016-09-30 13F STEEL DYNAMICS COM 858119100 0 -227,970 -100.00 0 -100.00
2016-08-11 2016-06-30 13F STEEL DYNAMICS COM 858119100 227,970 7,953 3.61 5,585 12.76 0.4008
2016-05-09 2016-03-31 13F STEEL DYNAMICS COM 858119100 220,017 160,363 268.82 4,953 364.63 0.3862
2016-02-05 2015-12-31 13F STEEL DYNAMICS COM 858119100 59,654 44,414 291.43 1,066 306.87 0.0720
2015-11-16 2015-09-30 13F STEEL DYNAMICS COM 858119100 15,240 15,240 0.00 262 0.0223
2015-05-15 2015-03-31 13F STEEL DYNAMICS COM 858119100 0 -11,343 -100.00 0 -100.00
2015-02-17 2014-12-31 13F STEEL DYNAMICS COM 858119100 11,343 11,343 224 0.0638
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.