Steel Dynamics, Inc.
US ˙ NasdaqGS ˙ US8581191009

SecuritySTLD / Steel Dynamics, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership231,123 shares
Latest Disclosed Value $ 41,602,050
Citigroup Inc ownership in STLD / Steel Dynamics, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 231,123 shares of Steel Dynamics, Inc. (US:STLD) valued at $41,602,140 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 162,565 shares of Steel Dynamics, Inc.. This represents a change in shares of 42.17% during the quarter. The current value of the position is $63,588,871 USD.

Citigroup Inc has a history of taking positions in derivatives of the underlying security (STLD) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 57,600 of underlying shares valued at $10,368,000 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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 .

Institutional Put/Call Ratios
(Premium Subscription Required)

In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

STLD / Steel Dynamics, Inc. Historical Put/Call Ratio
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)
2026-05-11 2026-03-31 13F STEEL DYNAMICS COM 858119100 231,123 68,558 42.17 41,602 51.03 0.0089
2026-02-13 2025-12-31 13F STEEL DYNAMICS COM 858119100 162,565 24,475 17.72 27,547 43.07 0.0122
2025-11-10 2025-09-30 13F STEEL DYNAMICS COM 858119100 138,090 -28,139 -16.93 19,254 -9.52 0.0086
2025-08-11 2025-06-30 13F STEEL DYNAMICS COM 858119100 166,229 -42,143 -20.22 21,279 -18.36 0.0105
2025-05-12 2025-03-31 13F STEEL DYNAMICS COM 858119100 208,372 -536,224 -72.02 26,063 -69.31 0.0133
2025-02-12 2024-12-31 13F STEEL DYNAMICS COM 858119100 744,596 555,702 294.19 84,936 256.65 0.0504
2024-11-12 2024-09-30 13F STEEL DYNAMICS COM 858119100 188,894 832 0.44 23,816 -2.21 0.0138
2024-08-12 2024-06-30 13F STEEL DYNAMICS COM 858119100 188,062 46,795 33.13 24,354 16.30 0.0156
2024-05-10 2024-03-31 13F STEEL DYNAMICS COM 858119100 141,267 -11,347 -7.44 20,940 16.18 0.0138
2024-02-09 2023-12-31 13F STEEL DYNAMICS COM 858119100 152,614 18,046 13.41 18,024 24.92 0.0127
2023-12-06 2023-09-30 13F/A-1 STEEL DYNAMICS COM 858119100 134,568 -234,899 -63.58 14,428 -64.15 0.0108
2023-11-09 2023-09-30 13F STEEL DYNAMICS COM 858119100 134,568 -234,899 14,428 0.0043
2023-08-10 2023-06-30 13F STEEL DYNAMICS COM 858119100 369,467 95,169 34.70 40,246 29.77 0.0264
2023-05-11 2023-03-31 13F STEEL DYNAMICS COM 858119100 274,298 124,777 83.45 31,012 112.29 0.0217
2023-02-09 2022-12-31 13F STEEL DYNAMICS COM 858119100 149,521 -33,335 -18.23 14,608 12.59 0.0116
2022-11-10 2022-09-30 13F STEEL DYNAMICS COM 858119100 182,856 7,059 4.02 12,974 11.57 0.0093
2022-08-10 2022-06-30 13F STEEL DYNAMICS COM 858119100 175,797 22,823 14.92 11,629 -8.88 0.0087
2022-05-12 2022-03-31 13F STEEL DYNAMICS COM 858119100 152,974 -34,946 -18.60 12,762 9.40 0.0078
2022-02-10 2021-12-31 13F STEEL DYNAMICS COM 858119100 187,920 -58,878 -23.86 11,665 -19.18 0.0062
2021-11-10 2021-09-30 13F STEEL DYNAMICS COM 858119100 246,798 32,735 15.29 14,433 13.12 0.0085
2021-08-10 2021-06-30 13F STEEL DYNAMICS COM 858119100 214,063 -269,715 -55.75 12,759 -48.04 0.0077
2021-05-13 2021-03-31 13F STEEL DYNAMICS COM 858119100 483,778 -150,080 -23.68 24,557 5.07 0.0159
2021-02-11 2020-12-31 13F STEEL DYNAMICS COM 858119100 633,858 447,603 240.32 23,371 338.32 0.0138
2020-11-12 2020-09-30 13F STEEL DYNAMICS COM 858119100 186,255 12,120 6.96 5,332 17.34 0.0035
2020-08-12 2020-06-30 13F STEEL DYNAMICS COM 858119100 174,135 -54,375 -23.80 4,544 -11.77 0.0035
2020-05-12 2020-03-31 13F STEEL DYNAMICS COM 858119100 228,510 -4,102 -1.76 5,150 -34.97 0.0047
2020-02-12 2019-12-31 13F STEEL DYNAMICS COM 858119100 232,612 20,288 9.56 7,919 25.16 0.0057
2019-11-08 2019-09-30 13F STEEL DYNAMICS COM 858119100 212,324 -61,176 -22.37 6,327 -23.39 0.0050
2019-08-12 2019-06-30 13F STEEL DYNAMICS COM 858119100 273,500 600 0.22 8,259 -14.18 0.0067
2019-05-13 2019-03-31 13F STEEL DYNAMICS COM 858119100 272,900 -40,908 -13.04 9,624 2.09 0.0093
2019-02-12 2018-12-31 13F STEEL DYNAMICS COM 858119100 313,808 125,647 66.78 9,427 10.87 0.0095
2018-11-13 2018-09-30 13F STEEL DYNAMICS COM 858119100 188,161 62,468 49.70 8,503 47.21 0.0076
2018-08-10 2018-06-30 13F STEEL DYNAMICS COM 858119100 125,693 -46,402 -26.96 5,776 -24.09 0.0053
2018-05-11 2018-03-31 13F STEEL DYNAMICS COM 858119100 172,095 -49,865 -22.47 7,609 -20.52 0.0063
2018-02-12 2017-12-31 13F STEEL DYNAMICS COM 858119100 221,960 -67,981 -23.45 9,573 -4.20 0.0077
2017-11-13 2017-09-30 13F STEEL DYNAMICS COM 858119100 289,941 26,558 10.08 9,993 5.96 0.0082
2017-08-11 2017-06-30 13F STEEL DYNAMICS COM 858119100 263,383 -219,982 -45.51 9,431 -43.87 0.0085
2017-05-12 2017-03-31 13F STEEL DYNAMICS COM 858119100 483,365 -121,036 -20.03 16,801 -21.87 0.0150
2017-02-10 2016-12-31 13F STEEL DYNAMICS COM 858119100 604,401 24,205 4.17 21,504 48.31 0.0194
2016-11-10 2016-09-30 13F STEEL DYNAMICS COM 858119100 580,196 43,007 8.01 14,499 10.17 0.0135
2016-08-12 2016-06-30 13F STEEL DYNAMICS COM 858119100 537,189 -101,586 -15.90 13,161 -8.47 0.0134
2016-05-13 2016-03-31 13F STEEL DYNAMICS COM 858119100 638,775 564,905 764.73 14,379 990.14 0.0162
2016-02-12 2015-12-31 13F STEEL DYNAMICS COM 858119100 73,870 -35,624 -32.54 1,319 -29.91 0.0013
2015-11-13 2015-09-30 13F STEEL DYNAMICS COM 858119100 109,494 37,526 52.14 1,882 26.22 0.0018
2015-08-13 2015-06-30 13F STEEL DYNAMICS COM 858119100 71,968 -27,949 -27.97 1,491 -25.75 0.0013
2015-05-14 2015-03-31 13F STEEL DYNAMICS COM 858119100 99,917 38,274 62.09 2,008 65.00 0.0019
2015-02-17 2014-12-31 13F STEEL DYNAMICS COM 858119100 61,643 -257,448 -80.68 1,217 -83.13 0.0011
2014-11-14 2014-09-30 13F STEEL DYNAMICS COM 858119100 319,091 -16,765 -4.99 7,214 19.66 0.0063
2014-08-14 2014-06-30 13F STEEL DYNAMICS COM 858119100 335,856 -112,102 -25.03 6,029 -24.35 0.0058
2014-05-15 2014-03-31 13F STEEL DYNAMICS COM 858119100 447,958 206,174 85.27 7,970 68.68 0.0081
2014-02-14 2013-12-31 13F STEEL DYNAMICS COM 858119100 241,784 -468,793 -65.97 4,725 -60.21 0.0043
2013-11-14 2013-09-30 13F STEEL DYNAMICS COM 858119100 710,577 431,841 154.93 11,874 185.71 0.0111
2013-08-14 2013-06-30 13F STEEL DYNAMICS COM 858119100 278,736 278,736 4,156 0.0041
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-08-11 2025-06-30 13F STEEL DYNAMICS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-12 2025-03-31 13F STEEL DYNAMICS COM Call 169,000 3.55 21,139 13.55 n/a n/a n/a
2025-02-12 2024-12-31 13F STEEL DYNAMICS COM Call 163,200 74.55 18,616 57.92 n/a n/a n/a
2024-11-12 2024-09-30 13F STEEL DYNAMICS COM Call 93,500 0.00 11,788 -2.64 n/a n/a n/a
2024-08-12 2024-06-30 13F STEEL DYNAMICS COM Call 93,500 74.77 12,108 52.69 n/a n/a n/a
2024-05-10 2024-03-31 13F STEEL DYNAMICS COM Call 53,500 7,930 n/a n/a n/a
2021-05-13 2021-03-31 13F STEEL DYNAMICS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-11 2020-12-31 13F STEEL DYNAMICS COM Call 32,300 -23.10 1,191 -0.92 n/a n/a n/a
2020-11-12 2020-09-30 13F STEEL DYNAMICS COM Call 42,000 -52.65 1,202 -48.06 n/a n/a n/a
2020-08-12 2020-06-30 13F STEEL DYNAMICS COM Call 88,700 7.65 2,314 24.61 n/a n/a n/a
2020-05-12 2020-03-31 13F STEEL DYNAMICS COM Call 82,400 16.55 1,857 -22.85 n/a n/a n/a
2020-02-12 2019-12-31 13F STEEL DYNAMICS COM Call 70,700 60.68 2,407 83.60 n/a n/a n/a
2019-11-08 2019-09-30 13F STEEL DYNAMICS COM Call 44,000 -32.31 1,311 -33.21 n/a n/a n/a
2019-08-12 2019-06-30 13F STEEL DYNAMICS COM Call 65,000 26.71 1,963 8.51 n/a n/a n/a
2019-05-13 2019-03-31 13F STEEL DYNAMICS COM Call 51,300 55.93 1,809 83.10 n/a n/a n/a
2019-02-12 2018-12-31 13F STEEL DYNAMICS COM Call 32,900 -43.28 988 -62.30 n/a n/a n/a
2018-11-13 2018-09-30 13F STEEL DYNAMICS COM Call 58,000 48.72 2,621 46.26 n/a n/a n/a
2018-08-10 2018-06-30 13F STEEL DYNAMICS COM Call 39,000 -12.16 1,792 -8.71 n/a n/a n/a
2018-05-11 2018-03-31 13F STEEL DYNAMICS COM Call 44,400 -84.79 1,963 -84.41 n/a n/a n/a
2018-02-12 2017-12-31 13F STEEL DYNAMICS COM Call 292,000 -15.92 12,594 5.20 n/a n/a n/a
2017-11-13 2017-09-30 13F STEEL DYNAMICS COM Call 347,300 478.83 11,971 457.05 n/a n/a n/a
2017-08-11 2017-06-30 13F STEEL DYNAMICS COM Call 60,000 5.63 2,149 8.87 n/a n/a n/a
2017-05-12 2017-03-31 13F STEEL DYNAMICS COM Call 56,800 -88.18 1,974 -88.46 n/a n/a n/a
2017-02-10 2016-12-31 13F STEEL DYNAMICS COM Call 480,600 -28.98 17,100 1.12 n/a n/a n/a
2016-11-10 2016-09-30 13F STEEL DYNAMICS COM Call 676,700 135.13 16,910 139.82 n/a n/a n/a
2016-08-12 2016-06-30 13F STEEL DYNAMICS COM Call 287,800 46.69 7,051 59.67 n/a n/a n/a
2016-05-13 2016-03-31 13F STEEL DYNAMICS COM Call 196,200 329.32 4,416 440.51 n/a n/a n/a
2016-02-12 2015-12-31 13F STEEL DYNAMICS COM Call 45,700 -24.96 817 -21.89 n/a n/a n/a
2015-11-13 2015-09-30 13F STEEL DYNAMICS COM Call 60,900 -48.87 1,046 -57.60 n/a n/a n/a
2015-08-13 2015-06-30 13F STEEL DYNAMICS COM Call 119,100 152.33 2,467 159.96 n/a n/a n/a
2015-05-14 2015-03-31 13F STEEL DYNAMICS COM Call 47,200 -48.70 949 -47.74 n/a n/a n/a
2015-02-17 2014-12-31 13F STEEL DYNAMICS COM Call 92,000 -35.30 1,816 -43.51 n/a n/a n/a
2014-11-14 2014-09-30 13F STEEL DYNAMICS COM Call 142,200 65.93 3,215 109.04 n/a n/a n/a
2014-08-14 2014-06-30 13F STEEL DYNAMICS COM Call 85,700 -29.29 1,538 -28.66 n/a n/a n/a
2014-05-15 2014-03-31 13F STEEL DYNAMICS COM Call 121,200 42.09 2,156 29.33 n/a n/a n/a
2014-02-14 2013-12-31 13F STEEL DYNAMICS COM Call 85,300 31.23 1,667 53.50 n/a n/a n/a
2013-11-14 2013-09-30 13F STEEL DYNAMICS COM Call 65,000 61.29 1,086 80.70 n/a n/a n/a
2013-08-14 2013-06-30 13F STEEL DYNAMICS COM Call 40,300 601 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-11 2026-03-31 13F STEEL DYNAMICS COM Put 57,600 84.03 10,368 95.51 n/a n/a n/a
2026-02-13 2025-12-31 13F STEEL DYNAMICS COM Put 31,300 5,304 n/a n/a n/a
2025-08-11 2025-06-30 13F STEEL DYNAMICS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-12 2025-03-31 13F STEEL DYNAMICS COM Put 144,300 3.59 18,049 13.59 n/a n/a n/a
2025-02-12 2024-12-31 13F STEEL DYNAMICS COM Put 139,300 0.00 15,890 -9.53 n/a n/a n/a
2024-11-12 2024-09-30 13F STEEL DYNAMICS COM Put 139,300 0.00 17,563 -2.64 n/a n/a n/a
2024-08-12 2024-06-30 13F STEEL DYNAMICS COM Put 139,300 55.99 18,039 36.29 n/a n/a n/a
2024-05-10 2024-03-31 13F STEEL DYNAMICS COM Put 89,300 13,237 n/a n/a n/a
2022-08-10 2022-06-30 13F STEEL DYNAMICS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-12 2022-03-31 13F STEEL DYNAMICS COM Put 36,000 0.00 3,003 34.36 n/a n/a n/a
2022-02-10 2021-12-31 13F STEEL DYNAMICS COM Put 36,000 2,235 n/a n/a n/a
2021-05-13 2021-03-31 13F STEEL DYNAMICS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-11 2020-12-31 13F STEEL DYNAMICS COM Put 89,700 -6.66 3,307 20.21 n/a n/a n/a
2020-11-12 2020-09-30 13F STEEL DYNAMICS COM Put 96,100 -3.42 2,751 5.97 n/a n/a n/a
2020-08-12 2020-06-30 13F STEEL DYNAMICS COM Put 99,500 10.31 2,596 27.69 n/a n/a n/a
2020-05-12 2020-03-31 13F STEEL DYNAMICS COM Put 90,200 21.73 2,033 -19.39 n/a n/a n/a
2020-02-12 2019-12-31 13F STEEL DYNAMICS COM Put 74,100 -5.36 2,522 8.10 n/a n/a n/a
2019-11-08 2019-09-30 13F STEEL DYNAMICS COM Put 78,300 -1.88 2,333 -3.20 n/a n/a n/a
2019-08-12 2019-06-30 13F STEEL DYNAMICS COM Put 79,800 10.68 2,410 -5.23 n/a n/a n/a
2019-05-13 2019-03-31 13F STEEL DYNAMICS COM Put 72,100 -48.57 2,543 -39.62 n/a n/a n/a
2019-02-12 2018-12-31 13F STEEL DYNAMICS COM Put 140,200 39.64 4,212 -7.16 n/a n/a n/a
2018-11-13 2018-09-30 13F STEEL DYNAMICS COM Put 100,400 -8.39 4,537 -9.91 n/a n/a n/a
2018-08-10 2018-06-30 13F STEEL DYNAMICS COM Put 109,600 10.04 5,036 14.35 n/a n/a n/a
2018-05-11 2018-03-31 13F STEEL DYNAMICS COM Put 99,600 -53.20 4,404 -52.02 n/a n/a n/a
2018-02-12 2017-12-31 13F STEEL DYNAMICS COM Put 212,800 13.19 9,178 41.64 n/a n/a n/a
2017-11-13 2017-09-30 13F STEEL DYNAMICS COM Put 188,000 96.86 6,480 89.47 n/a n/a n/a
2017-08-11 2017-06-30 13F STEEL DYNAMICS COM Put 95,500 -15.41 3,420 -12.84 n/a n/a n/a
2017-05-12 2017-03-31 13F STEEL DYNAMICS COM Put 112,900 109.85 3,924 105.02 n/a n/a n/a
2017-02-10 2016-12-31 13F STEEL DYNAMICS COM Put 53,800 -82.96 1,914 -75.75 n/a n/a n/a
2016-11-10 2016-09-30 13F STEEL DYNAMICS COM Put 315,800 9.54 7,892 11.74 n/a n/a n/a
2016-08-12 2016-06-30 13F STEEL DYNAMICS COM Put 288,300 289.59 7,063 323.95 n/a n/a n/a
2016-05-13 2016-03-31 13F STEEL DYNAMICS COM Put 74,000 80.93 1,666 127.91 n/a n/a n/a
2016-02-12 2015-12-31 13F STEEL DYNAMICS COM Put 40,900 21.36 731 26.25 n/a n/a n/a
2015-11-13 2015-09-30 13F STEEL DYNAMICS COM Put 33,700 -43.17 579 -52.85 n/a n/a n/a
2015-08-13 2015-06-30 13F STEEL DYNAMICS COM Put 59,300 -64.85 1,228 -63.79 n/a n/a n/a
2015-05-14 2015-03-31 13F STEEL DYNAMICS COM Put 168,700 217.11 3,391 222.95 n/a n/a n/a
2015-02-17 2014-12-31 13F STEEL DYNAMICS COM Put 53,200 -17.26 1,050 -27.79 n/a n/a n/a
2014-11-14 2014-09-30 13F STEEL DYNAMICS COM Put 64,300 5.76 1,454 33.27 n/a n/a n/a
2014-08-14 2014-06-30 13F STEEL DYNAMICS COM Put 60,800 -41.37 1,091 -40.87 n/a n/a n/a
2014-05-15 2014-03-31 13F STEEL DYNAMICS COM Put 103,700 175.80 1,845 151.02 n/a n/a n/a
2014-02-14 2013-12-31 13F STEEL DYNAMICS COM Put 37,600 -21.34 735 -8.01 n/a n/a n/a
2013-11-14 2013-09-30 13F STEEL DYNAMICS COM Put 47,800 3.02 799 15.46 n/a n/a n/a
2013-08-14 2013-06-30 13F STEEL DYNAMICS COM Put 46,400 692 n/a n/a n/a
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.