Steel Dynamics, Inc.
MX ˙ BMV ˙ US8581191009
SecurityMX:STLD / Steel Dynamics, Inc.
InstitutionCaitlin John, LLC
Latest Disclosed Ownership151 shares
Latest Disclosed Value $ 27,268
Caitlin John, LLC ownership in STLD / Steel Dynamics, Inc.

On May 13, 2026 - Caitlin John, LLC filed a 13F-HR form disclosing ownership of 151 shares of Steel Dynamics, Inc. (MX:STLD) valued at $27,268 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 18, 2026 disclosing 151 shares of Steel Dynamics, Inc.. This represents a change in shares of 0.00% 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)
2026-05-13 2026-03-31 13F STEEL DYNAMICS COM 858119100 151 0 0.00 27 8.00 0.0102
2026-02-18 2025-12-31 13F STEEL DYNAMICS COM 858119100 151 0 0.00 26 25.00 0.0168
2025-11-12 2025-09-30 13F STEEL DYNAMICS COM 858119100 151 151 21 0.0146
2025-05-14 2025-03-31 13F STEEL DYNAMICS INC COM Stock 858119100 0 -149 -100.00 0 -100.00
2025-01-27 2024-12-31 13F STEEL DYNAMICS INC COM Stock 858119100 149 0 0.00 17 -23.81 0.0112
2024-11-14 2024-09-30 13F STEEL DYNAMICS INC COM Stock 858119100 149 -560 -78.98 21 -76.92 0.0132
2025-01-27 2024-06-30 13F STEEL DYNAMICS INC COM Stock 858119100 709 -123 -14.78 92 -26.02 0.0660
2025-01-27 2024-03-31 13F STEEL DYNAMICS INC COM Stock 858119100 832 684 462.16 123 623.53 0.0921
2024-02-14 2023-12-31 13F STEEL DYNAMICS COM 858119100 148 148 18 0.0143
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.