Steel Dynamics, Inc.
US ˙ NasdaqGS ˙ US8581191009

SecuritySTLD / Steel Dynamics, Inc.
InstitutionStandard Life Aberdeen plc
Latest Disclosed Ownership160,153 shares
Latest Disclosed Value $ 28,827,540
Standard Life Aberdeen plc reports 10.33% increase in ownership of STLD / Steel Dynamics, Inc.

On April 29, 2026 - Standard Life Aberdeen plc filed a 13F-HR form disclosing ownership of 160,153 shares of Steel Dynamics, Inc. (US:STLD) valued at $28,827,540 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 145,156 shares of Steel Dynamics, Inc.. This represents a change in shares of 10.33% during the quarter. The current value of the position is $43,001,080 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)
2026-04-29 2026-03-31 13F STEEL DYNAMICS COM 858119100 160,153 14,997 10.33 28,828 17.20 0.0253
2026-01-16 2025-12-31 13F STEEL DYNAMICS COM 858119100 145,156 2,305 1.61 24,597 23.49 0.0381
2025-11-07 2025-09-30 13F STEEL DYNAMICS COM 858119100 142,851 -22,971 -13.85 19,918 -6.17 0.0315
2025-07-24 2025-06-30 13F STEEL DYNAMICS COM 858119100 165,822 8,577 5.45 21,227 9.24 0.0361
2025-05-13 2025-03-31 13F STEEL DYNAMICS COM 858119100 157,245 28,546 22.18 19,432 32.00 0.0379
2025-01-24 2024-12-31 13F STEEL DYNAMICS COM 858119100 128,699 -21,425 -14.27 14,721 -21.70 0.0276
2024-10-25 2024-09-30 13F STEEL DYNAMICS COM 858119100 150,124 -2,318 -1.52 18,801 -4.77 0.0345
2024-08-09 2024-06-30 13F STEEL DYNAMICS COM 858119100 152,442 -3,153 -2.03 19,741 -14.40 0.0378
2024-05-09 2024-03-31 13F STEEL DYNAMICS COM 858119100 155,595 2,768 1.81 23,064 27.79 0.0452
2024-01-31 2023-12-31 13F STEEL DYNAMICS COM 858119100 152,827 26,879 21.34 18,049 33.65 0.0391
2023-11-07 2023-09-30 13F STEEL DYNAMICS COM 858119100 125,948 924 0.74 13,504 -0.84 0.0345
2024-06-20 2023-06-30 13F/A-1 STEEL DYNAMICS COM 858119100 125,024 6,224 5.24 13,619 1.39 0.0317
2023-08-04 2023-06-30 13F STEEL DYNAMICS COM 858119100 125,024 6,224 13,619 0.0317
2024-06-20 2023-03-31 13F/A-1 STEEL DYNAMICS COM 858119100 118,800 22,772 23.71 13,432 43.17 0.0336
2023-04-28 2023-03-31 13F STEEL DYNAMICS COM 858119100 118,800 22,772 13,432 0.0336
2024-06-20 2022-12-31 13F/A-1 STEEL DYNAMICS COM 858119100 96,028 28,977 43.22 9,382 97.16 0.0255
2023-02-10 2022-12-31 13F STEEL DYNAMICS COM 858119100 96,028 28,977 9,382 0.0255
2022-11-10 2022-09-30 13F STEEL DYNAMICS COM 858119100 67,051 26,071 63.62 4,758 75.51 0.0142
2022-08-05 2022-06-30 13F STEEL DYNAMICS COM 858119100 40,980 8,803 27.36 2,711 -1.53 0.0085
2022-05-04 2022-03-31 13F STEEL DYNAMICS COM 858119100 32,177 -18,159 -36.08 2,753 -11.88 0.0070
2022-02-10 2021-12-31 13F/A-1 STEEL DYNAMICS COM 858119100 50,336 2,112 4.38 3,124 10.74 0.0069
2022-02-08 2021-12-31 13F STEEL DYNAMICS COM 858119100 50,336 2,112 3,124 0.0022
2021-11-15 2021-09-30 13F STEEL DYNAMICS COM 858119100 48,224 -61,244 -55.95 2,821 -56.77 0.0064
2021-08-10 2021-06-30 13F STEEL DYNAMICS COM 858119100 109,468 -5,747 -4.99 6,526 11.59 0.0143
2021-05-06 2021-03-31 13F STEEL DYNAMICS COM 858119100 115,215 -8,105 -6.57 5,848 28.58 0.0133
2021-02-10 2020-12-31 13F STEEL DYNAMICS COM 858119100 123,320 -57,657 -31.86 4,548 -12.25 0.0111
2020-10-21 2020-09-30 13F STEEL DYNAMICS COM 858119100 180,977 -14,116 -7.24 5,183 1.81 0.0138
2020-08-10 2020-06-30 13F STEEL DYNAMICS COM 858119100 195,093 -42,563 -17.91 5,091 -4.95 0.0138
2020-05-13 2020-03-31 13F STEEL DYNAMICS COM 858119100 237,656 -16,718 -6.57 5,356 -38.15 0.0170
2020-02-18 2019-12-31 13F STEEL DYNAMICS COM 858119100 254,374 -8,033 -3.06 8,660 10.73 0.0209
2019-11-13 2019-09-30 13F STEEL DYNAMICS COM 858119100 262,407 -230,607 -46.77 7,821 -47.50 0.0195
2019-08-13 2019-06-30 13F STEEL DYNAMICS COM 858119100 493,014 -1,146,497 -69.93 14,896 -74.24 0.0331
2019-05-14 2019-03-31 13F STEEL DYNAMICS COM 858119100 1,639,511 -406,832 -19.88 57,826 -5.71 0.1253
2019-02-12 2018-12-31 13F STEEL DYNAMICS COM 858119100 2,046,343 -537,850 -20.81 61,329 -47.49 0.1456
2018-11-20 2018-09-30 13F/A-1 STEEL DYNAMICS COM 858119100 2,584,193 -106,085 -3.94 116,792 -5.53 0.2177
2018-11-13 2018-09-30 13F STEEL DYNAMICS COM 858119100 2,584,193 -106,085 116,792
2018-08-09 2018-06-30 13F STEEL DYNAMICS COM 858119100 2,690,278 812,425 43.26 123,632 48.89 0.2376
2018-05-15 2018-03-31 13F STEEL DYNAMICS COM 858119100 1,877,853 891,219 90.33 83,038 95.14 0.1647
2018-02-12 2017-12-31 13F STEEL DYNAMICS COM 858119100 986,634 -1,453 -0.15 42,553 24.92 0.0814
2017-11-14 2017-09-30 13F STEEL DYNAMICS COM 858119100 988,087 988,087 34,064 0.0621
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.