STEEL DYNAMICS INC

Ticker: STLD CUSIP: 858119100 Class: COMMON STOCK

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 79,868 Value ($000) $13,534 Avg Close $158.36 Range $137.70 - $177.84

Q3 2025

Shares 74,814 Value ($000) $10,431 Avg Close $130.39 Range $119.11 - $140.98

Q2 2025

Shares 88,901 Value ($000) $11,380 Avg Close $126.36 Range $102.11 - $140.95

Q1 2025

Shares 113,372 Value ($000) $14,181 Avg Close $124.96 Range $109.33 - $137.65

Q4 2024

Shares 83,443 Value ($000) $9,518 Avg Close $130.47 Range $111.65 - $152.72

Q3 2024

Shares 93,284 Value ($000) $11,761 Avg Close $118.85 Range $102.31 - $134.27

Q2 2024

Shares 89,014 Value ($000) $11,527 Avg Close $130.12 Range $115.35 - $147.49

Q1 2024

Shares 96,686 Value ($000) $14,332 Avg Close $122.14 Range $106.53 - $144.95

Q4 2023

Shares 128,134 Value ($000) $15,133 Avg Close $107.90 Range $95.11 - $124.46

Q3 2023

Shares 104,843 Value ($000) $11,241 Avg Close $100.40 Range $92.11 - $107.71

Q2 2023

Shares 116,782 Value ($000) $12,721 Avg Close $97.72 Range $86.96 - $110.55

Q1 2023

Shares 145,170 Value ($000) $16,413 Avg Close $111.23 Range $90.76 - $130.54

Q4 2022

Shares 110,050 Value ($000) $10,752 Avg Close $91.75 Range $68.70 - $107.85

Q3 2022

Shares 109,477 Value ($000) $7,767 Avg Close $71.84 Range $59.25 - $84.09

Q2 2022

Shares 190,760 Value ($000) $12,619 Avg Close $75.64 Range $60.78 - $94.76

Q1 2022

Shares 484,053 Value ($000) $40,385 Avg Close $63.45 Range $47.52 - $84.34

Q4 2021

Shares 494,453 Value ($000) $30,691 Avg Close $58.59 Range $52.93 - $64.63

Q3 2021

Shares 490,673 Value ($000) $28,695 Avg Close $59.61 Range $51.19 - $69.35

Q2 2021

Shares 443,791 Value ($000) $26,450 Avg Close $54.47 Range $45.84 - $62.09

Q1 2021

Shares 447,280 Value ($000) $22,704 Avg Close $38.96 Range $31.19 - $48.49

Q4 2020

Shares 620,450 Value ($000) $22,876 Avg Close $31.85 Range $25.96 - $36.89

Q3 2020

Shares 645,298 Value ($000) $18,475 Avg Close $26.10 Range $21.83 - $29.60

Q2 2020

Shares 646,358 Value ($000) $16,863 Avg Close $22.53 Range $18.48 - $27.00

Q1 2020

Shares 639,232 Value ($000) $14,408 Avg Close $24.36 Range $13.32 - $30.61

Q4 2019

Shares 536,707 Value ($000) $18,269 Avg Close $28.20 Range $24.32 - $31.60

Q3 2019

Shares 538,203 Value ($000) $16,038 Avg Close $25.87 Range $22.50 - $28.88

Q2 2019

Shares 543,682 Value ($000) $16,419 Avg Close $26.59 Range $21.75 - $31.41

Q1 2019

Shares 604,609 Value ($000) $21,325 Avg Close $30.67 Range $25.17 - $33.96

Q4 2018

Shares 509,256 Value ($000) $15,298 Avg Close $32.42 Range $24.79 - $39.93

Q3 2018

Shares 342,446 Value ($000) $15,475 Avg Close $39.33 Range $35.70 - $42.45

Q2 2018

Shares 365,059 Value ($000) $16,774 Avg Close $40.25 Range $36.27 - $44.32

Q1 2018

Shares 450,251 Value ($000) $19,910 Avg Close $39.00 Range $34.83 - $42.94

Q4 2017

Shares 505,477 Value ($000) $21,801 Avg Close $32.46 Range $28.33 - $37.17

Q3 2017

Shares 524,479 Value ($000) $18,079 Avg Close $29.48 Range $27.05 - $32.51

Q2 2017

Shares 474,161 Value ($000) $16,980 Avg Close $28.97 Range $26.88 - $31.37

Q1 2017

Shares 87,889 Value ($000) $3,055 Avg Close $29.67 Range $27.09 - $32.02

Q4 2016

Shares 128,439 Value ($000) $4,570 Avg Close $26.10 Range $19.35 - $33.31

Q3 2016

Shares 150,220 Value ($000) $3,754 Avg Close $21.06 Range $18.79 - $23.10

Q2 2016

Shares 153,020 Value ($000) $3,749 Avg Close $20.03 Range $17.68 - $22.12

Q1 2016

Shares 168,620 Value ($000) $3,796 Avg Close $15.36 Range $12.48 - $18.79

Q4 2015

Shares 439,895 Value ($000) $7,861 Avg Close $14.45 Range $13.12 - $15.93

Q3 2015

Shares 247,085 Value ($000) $4,245 Avg Close $15.53 Range $13.35 - $17.42

Q2 2015

Shares 494,095 Value ($000) $10,235 Avg Close $17.16 Range $15.54 - $18.46

Q1 2015

Shares 490,835 Value ($000) $9,866 Avg Close $14.75 Range $13.06 - $16.57

Q4 2014

Shares 445,825 Value ($000) $8,801 Avg Close $16.97 Range $14.81 - $18.55

Q3 2014

Shares 429,145 Value ($000) $9,703 Avg Close $17.12 Range $13.89 - $19.97

Q2 2014

Shares 469,775 Value ($000) $8,432 Avg Close $13.98 Range $13.22 - $14.83

Q1 2014

Shares 457,105 Value ($000) $8,132 Avg Close $13.53 Range $12.21 - $15.09

Q4 2013

Shares 417,845 Value ($000) $8,165 Avg Close $14.08 Range $12.49 - $15.25

Q3 2013

Shares 406,625 Value ($000) $6,795 Avg Close $12.11 Range $11.42 - $13.41

Q2 2013

Shares 419,195 Value ($000) $6,250 Avg Close $11.35 Range $10.49 - $12.29

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	79,868	$13,534	$158.36	$137.70 - $177.84
Q3 2025	74,814	$10,431	$130.39	$119.11 - $140.98
Q2 2025	88,901	$11,380	$126.36	$102.11 - $140.95
Q1 2025	113,372	$14,181	$124.96	$109.33 - $137.65
Q4 2024	83,443	$9,518	$130.47	$111.65 - $152.72
Q3 2024	93,284	$11,761	$118.85	$102.31 - $134.27
Q2 2024	89,014	$11,527	$130.12	$115.35 - $147.49
Q1 2024	96,686	$14,332	$122.14	$106.53 - $144.95
Q4 2023	128,134	$15,133	$107.90	$95.11 - $124.46
Q3 2023	104,843	$11,241	$100.40	$92.11 - $107.71
Q2 2023	116,782	$12,721	$97.72	$86.96 - $110.55
Q1 2023	145,170	$16,413	$111.23	$90.76 - $130.54
Q4 2022	110,050	$10,752	$91.75	$68.70 - $107.85
Q3 2022	109,477	$7,767	$71.84	$59.25 - $84.09
Q2 2022	190,760	$12,619	$75.64	$60.78 - $94.76
Q1 2022	484,053	$40,385	$63.45	$47.52 - $84.34
Q4 2021	494,453	$30,691	$58.59	$52.93 - $64.63
Q3 2021	490,673	$28,695	$59.61	$51.19 - $69.35
Q2 2021	443,791	$26,450	$54.47	$45.84 - $62.09
Q1 2021	447,280	$22,704	$38.96	$31.19 - $48.49
Q4 2020	620,450	$22,876	$31.85	$25.96 - $36.89
Q3 2020	645,298	$18,475	$26.10	$21.83 - $29.60
Q2 2020	646,358	$16,863	$22.53	$18.48 - $27.00
Q1 2020	639,232	$14,408	$24.36	$13.32 - $30.61
Q4 2019	536,707	$18,269	$28.20	$24.32 - $31.60
Q3 2019	538,203	$16,038	$25.87	$22.50 - $28.88
Q2 2019	543,682	$16,419	$26.59	$21.75 - $31.41
Q1 2019	604,609	$21,325	$30.67	$25.17 - $33.96
Q4 2018	509,256	$15,298	$32.42	$24.79 - $39.93
Q3 2018	342,446	$15,475	$39.33	$35.70 - $42.45
Q2 2018	365,059	$16,774	$40.25	$36.27 - $44.32
Q1 2018	450,251	$19,910	$39.00	$34.83 - $42.94
Q4 2017	505,477	$21,801	$32.46	$28.33 - $37.17
Q3 2017	524,479	$18,079	$29.48	$27.05 - $32.51
Q2 2017	474,161	$16,980	$28.97	$26.88 - $31.37
Q1 2017	87,889	$3,055	$29.67	$27.09 - $32.02
Q4 2016	128,439	$4,570	$26.10	$19.35 - $33.31
Q3 2016	150,220	$3,754	$21.06	$18.79 - $23.10
Q2 2016	153,020	$3,749	$20.03	$17.68 - $22.12
Q1 2016	168,620	$3,796	$15.36	$12.48 - $18.79
Q4 2015	439,895	$7,861	$14.45	$13.12 - $15.93
Q3 2015	247,085	$4,245	$15.53	$13.35 - $17.42
Q2 2015	494,095	$10,235	$17.16	$15.54 - $18.46
Q1 2015	490,835	$9,866	$14.75	$13.06 - $16.57
Q4 2014	445,825	$8,801	$16.97	$14.81 - $18.55
Q3 2014	429,145	$9,703	$17.12	$13.89 - $19.97
Q2 2014	469,775	$8,432	$13.98	$13.22 - $14.83
Q1 2014	457,105	$8,132	$13.53	$12.21 - $15.09
Q4 2013	417,845	$8,165	$14.08	$12.49 - $15.25
Q3 2013	406,625	$6,795	$12.11	$11.42 - $13.41
Q2 2013	419,195	$6,250	$11.35	$10.49 - $12.29