Steel Dynamics, Inc.
US ˙ NasdaqGS ˙ US8581191009

SecuritySTLD / Steel Dynamics, Inc.
InstitutionSignaturefd, Llc
Latest Disclosed Ownership10,046 shares
Latest Disclosed Value $ 1,808,288
Signaturefd, Llc reports 1.92% increase in ownership of STLD / Steel Dynamics, Inc.

On April 7, 2026 - Signaturefd, Llc filed a 13F-HR form disclosing ownership of 10,046 shares of Steel Dynamics, Inc. (US:STLD) valued at $1,808,280 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 9,857 shares of Steel Dynamics, Inc.. This represents a change in shares of 1.92% during the quarter. The current value of the position is $2,697,351 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-07 2026-03-31 13F STEEL DYNAMICS COM 858119100 10,046 189 1.92 1,808 8.26 0.0277
2026-01-20 2025-12-31 13F STEEL DYNAMICS COM 858119100 9,857 -433 -4.21 1,670 16.46 0.0255
2025-10-21 2025-09-30 13F STEEL DYNAMICS COM 858119100 10,290 -94 -0.91 1,435 7.90 0.0226
2025-07-16 2025-06-30 13F STEEL DYNAMICS COM 858119100 10,384 -65 -0.62 1,329 1.76 0.0227
2025-05-02 2025-03-31 13F STEEL DYNAMICS COM 858119100 10,449 248 2.43 1,307 12.30 0.0247
2025-02-10 2024-12-31 13F STEEL DYNAMICS COM 858119100 10,201 38 0.37 1,164 -9.21 0.0220
2024-10-21 2024-09-30 13F STEEL DYNAMICS COM 858119100 10,163 28 0.28 1,281 -2.36 0.0244
2024-07-29 2024-06-30 13F STEEL DYNAMICS COM 858119100 10,135 -518 -4.86 1,312 -16.91 0.0267
2024-05-03 2024-03-31 13F STEEL DYNAMICS COM 858119100 10,653 -45 -0.42 1,579 25.02 0.0334
2024-02-01 2023-12-31 13F STEEL DYNAMICS COM 858119100 10,698 93 0.88 1,263 11.08 0.0292
2023-11-03 2023-09-30 13F STEEL DYNAMICS COM 858119100 10,605 130 1.24 1,137 -0.35 0.0296
2023-08-01 2023-06-30 13F STEEL DYNAMICS COM 858119100 10,475 -71 -0.67 1,141 -4.28 0.0291
2023-04-28 2023-03-31 13F STEEL DYNAMICS COM 858119100 10,546 7,994 313.24 1,192 378.71 0.0326
2023-01-30 2022-12-31 13F STEEL DYNAMICS COM 858119100 2,552 122 5.02 249 44.77 0.0073
2022-11-08 2022-09-30 13F STEEL DYNAMICS COM 858119100 2,430 257 11.83 172 19.44 0.0059
2022-08-10 2022-06-30 13F STEEL DYNAMICS COM 858119100 2,173 555 34.30 144 6.67 0.0049
2022-05-02 2022-03-31 13F STEEL DYNAMICS COM 858119100 1,618 581 56.03 135 110.94 0.0041
2022-01-25 2021-12-31 13F STEEL DYNAMICS COM 858119100 1,037 -198 -16.03 64 -11.11 0.0020
2021-10-28 2021-09-30 13F STEEL DYNAMICS COM 858119100 1,235 30 2.49 72 0.00 0.0025
2021-07-26 2021-06-30 13F STEEL DYNAMICS COM 858119100 1,205 579 92.49 72 125.00 0.0029
2021-04-30 2021-03-31 13F STEEL DYNAMICS COM 858119100 626 -589 -48.48 32 -28.89 0.0014
2021-02-11 2020-12-31 13F STEEL DYNAMICS COM 858119100 1,215 49 4.20 45 36.36 0.0021
2020-11-03 2020-09-30 13F STEEL DYNAMICS COM 858119100 1,166 -2 -0.17 33 10.00 0.0018
2020-07-30 2020-06-30 13F STEEL DYNAMICS COM 858119100 1,168 -115 -8.96 30 3.45 0.0018
2020-04-23 2020-03-31 13F STEEL DYNAMICS COM 858119100 1,283 200 18.47 29 -21.62 0.0025
2020-02-05 2019-12-31 13F STEEL DYNAMICS COM 858119100 1,083 462 74.40 37 94.74 0.0027
2019-10-16 2019-09-30 13F STEEL DYNAMICS COM 858119100 621 -530 -46.05 19 -45.71 0.0016
2019-07-31 2019-06-30 13F STEEL DYNAMICS COM 858119100 1,151 1,016 752.59 35 600.00 0.0030
2019-05-09 2019-03-31 13F STEEL DYNAMICS COM 858119100 135 2 1.50 5 25.00 0.0004
2019-02-13 2018-12-31 13F STEEL DYNAMICS COM 858119100 133 7 5.56 4 -33.33 0.0004
2018-11-14 2018-09-30 13F STEEL DYNAMICS COM 858119100 126 -90 -41.67 6 -40.00 0.0006
2018-08-14 2018-06-30 13F STEEL DYNAMICS COM 858119100 216 96 80.00 10 100.00 0.0011
2018-05-08 2018-03-31 13F STEEL DYNAMICS COM 858119100 120 120 5 0.0006
2017-02-14 2016-12-31 13F STEEL DYNAMICS COM 858119100 0 -216 -100.00 0 -100.00
2016-11-14 2016-09-30 13F STEEL DYNAMICS COM 858119100 216 216 0.00 5 0.0007
2016-05-12 2016-03-31 13F STEEL DYNAMICS COM 858119100 0 -41 -100.00 0 -100.00
2016-01-22 2015-12-31 13F STEEL DYNAMICS COM 858119100 41 32 355.56 1 0.0002
2015-10-23 2015-09-30 13F STEEL DYNAMICS COM 858119100 9 0 0.00 0 0.0000
2015-07-15 2015-06-30 13F STEEL DYNAMICS COM 858119100 9 0 0.00 0 0.0000
2015-04-15 2015-03-31 13F STEEL DYNAMICS COM 858119100 9 0 0.00 0 0.0000
2015-02-13 2014-12-31 13F STEEL DYNAMICS COM 858119100 9 0 0.00 0 0.0000
2014-11-13 2014-09-30 13F STEEL DYNAMICS COM 858119100 9 0 0.00 0 0.0000
2014-08-14 2014-06-30 13F STEEL DYNAMICS COM 858119100 9 0 0.00 0 0.0000
2014-05-16 2014-03-31 13F STEEL DYNAMICS COM 858119100 9 0 0.00 0 0.0000
2014-02-11 2013-12-31 13F STEEL DYNAMICS COM 858119100 9 0 0.00 0 0.0000
2013-11-13 2013-09-30 13F STEEL DYNAMICS COM 858119100 9 0 0.00 0 0.0000
2013-08-14 2013-06-30 13F STEEL DYNAMICS COM 858119100 9 9 0 0.0000
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.