스틸 다이나믹스, Inc.
MX ˙ BMV ˙ US8581191009
SecurityMX:STLD / Steel Dynamics, Inc.
InstitutionRockefeller Capital Management L.P.
Latest Disclosed Ownership23,170 shares
Latest Disclosed Value $ 4,170,789
Rockefeller Capital Management L.P. reports 9.63% decrease in ownership of STLD / Steel Dynamics, Inc.

On May 14, 2026 - Rockefeller Capital Management L.P. filed a 13F-HR form disclosing ownership of 23,170 shares of Steel Dynamics, Inc. (MX:STLD) valued at $4,170,789 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 16, 2026 disclosing 25,640 shares of Steel Dynamics, Inc.. This represents a change in shares of -9.63% during the quarter.

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 COM 858119100 23,170 -2,470 -9.63 4,171 -4.01 0.0074
2026-03-16 2025-12-31 13F/A-1 STEEL DYNAMICS COM 858119100 25,640 801 3.22 4,345 25.44 0.0078
2026-02-14 2025-12-31 13F STEEL DYNAMICS COM 858119100 25,640 801 4,345 0.0040
2025-11-14 2025-09-30 13F STEEL DYNAMICS COM 858119100 24,839 3,144 14.49 3,463 24.70 0.0068
2025-08-14 2025-06-30 13F/A-1 STEEL DYNAMICS COM 858119100 21,695 2,181 11.18 2,777 13.81 0.0061
2025-08-08 2025-06-30 13F STEEL DYNAMICS COM 858119100 21,695 2,181 2,777 0.0035
2025-05-14 2025-03-31 13F STEEL DYNAMICS COM 858119100 19,514 -158 -0.80 2,441 8.73 0.0060
2025-02-13 2024-12-31 13F STEEL DYNAMICS COM 858119100 19,672 -1,916 -8.88 2,244 -17.53 0.0058
2024-11-14 2024-09-30 13F STEEL DYNAMICS COM 858119100 21,588 -6,662 -23.58 2,722 -25.62 0.0073
2024-08-12 2024-06-30 13F STEEL DYNAMICS COM 858119100 28,250 341 1.22 3,659 -11.58 0.0104
2024-05-14 2024-03-31 13F STEEL DYNAMICS COM 858119100 27,909 444 1.62 4,137 27.57 0.0121
2024-02-14 2023-12-31 13F STEEL DYNAMICS COM 858119100 27,465 2,192 8.67 3,244 19.71 0.0108
2023-11-14 2023-09-30 13F STEEL DYNAMICS COM 858119100 25,273 70 0.28 2,710 -1.31 0.0105
2023-08-14 2023-06-30 13F STEEL DYNAMICS COM 858119100 25,203 -177 -0.70 2,745 137,150.00 0.0106
2023-05-16 2023-03-31 13F STEEL DYNAMICS COM 858119100 25,380 -2,224 -8.06 3 -99.93 0.0123
2023-03-06 2022-12-31 13F STEEL DYNAMICS COM 858119100 27,604 -1,853 -6.29 2,696 29.06 0.0135
2022-11-02 2022-09-30 13F STEEL DYNAMICS COM 858119100 29,457 -12,523 -29.83 2,089 -24.75 0.0108
2022-08-12 2022-06-30 13F STEEL DYNAMICS COM 858119100 41,980 -845 -1.97 2,776 -22.28 0.0148
2022-05-13 2022-03-31 13F STEEL DYNAMICS COM 858119100 42,825 -48 -0.11 3,572 34.24 0.0172
2022-02-14 2021-12-31 13F STEEL DYNAMICS COM 858119100 42,873 942 2.25 2,661 8.57 0.0124
2021-11-12 2021-09-30 13F STEEL DYNAMICS COM 858119100 41,931 1,005 2.46 2,451 0.53 0.0129
2021-08-10 2021-06-30 13F STEEL DYNAMICS COM 858119100 40,926 44 0.11 2,438 17.55 0.0137
2021-05-11 2021-03-31 13F STEEL DYNAMICS COM 858119100 40,882 5,535 15.66 2,074 59.29 0.0140
2021-02-12 2020-12-31 13F STEEL DYNAMICS COM 858119100 35,347 31,596 842.34 1,302 1,116.82 0.0099
2020-11-13 2020-09-30 13F STEEL DYNAMICS COM 858119100 3,751 3,487 1,320.83 107 1,428.57 0.0010
2020-08-12 2020-06-30 13F STEEL DYNAMICS COM 858119100 264 0 0.00 7 16.67 0.0001
2020-05-12 2020-03-31 13F STEEL DYNAMICS COM 858119100 264 264 6 0.0001
2019-08-09 2019-06-30 13F STEEL DYNAMICS COM 858119100 0 -2,094 -100.00 0 -100.00
2019-05-10 2019-03-31 13F STEEL DYNAMICS COM 858119100 2,094 1,419 210.22 74 270.00 0.0011
2019-02-12 2018-12-31 13F STEEL DYNAMICS COM 858119100 675 0 0.00 20 -35.48 0.0004
2018-11-02 2018-09-30 13F Steel Dynamics Common 858119100 675 0 0.00 31 0.00 0.0005
2018-07-31 2018-06-30 13F Steel Dynamics Common 858119100 675 675 31 0.0005
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.