STEEL DYNAMICS INC

Ticker: STLD CUSIP: 858119100 Class: COMMON STOCK

MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000922127)

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

Q4 2025

Shares 14,737 Value ($000) $2,497 Avg Close $158.36 Range $137.70 - $177.84

Q3 2025

Shares 14,996 Value ($000) $2,091 Avg Close $130.39 Range $119.11 - $140.98

Q2 2025

Shares 15,832 Value ($000) $2,027 Avg Close $126.36 Range $102.11 - $140.95

Q1 2025

Shares 16,464 Value ($000) $2,059 Avg Close $124.96 Range $109.33 - $137.65

Q4 2024

Shares 16,960 Value ($000) $1,935 Avg Close $130.47 Range $111.65 - $152.72

Q3 2024

Shares 17,670 Value ($000) $2,228 Avg Close $118.85 Range $102.31 - $134.27

Q2 2024

Shares 18,628 Value ($000) $2,412 Avg Close $130.12 Range $115.35 - $147.49

Q1 2024

Shares 35,957 Value ($000) $5,330 Avg Close $122.14 Range $106.53 - $144.95

Q4 2023

Shares 35,376 Value ($000) $4,178 Avg Close $107.90 Range $95.11 - $124.46

Q3 2023

Shares 35,908 Value ($000) $3,850 Avg Close $100.40 Range $92.11 - $107.71

Q2 2023

Shares 37,150 Value ($000) $4,047 Avg Close $97.72 Range $86.96 - $110.55

Q1 2023

Shares 37,123 Value ($000) $4,197 Avg Close $111.23 Range $90.76 - $130.54

Q4 2022

Shares 44,521 Value ($000) $4,350 Avg Close $91.75 Range $68.70 - $107.85

Q3 2022

Shares 160,580 Value ($000) $11,393 Avg Close $71.84 Range $59.25 - $84.09

Q2 2022

Shares 171,220 Value ($000) $11,326 Avg Close $75.64 Range $60.78 - $94.76

Q1 2022

Shares 192,260 Value ($000) $16,040 Avg Close $63.45 Range $47.52 - $84.34

Q4 2021

Shares 188,361 Value ($000) $11,692 Avg Close $58.59 Range $52.93 - $64.63

Q3 2021

Shares 190,568 Value ($000) $11,144 Avg Close $59.61 Range $51.19 - $69.35

Q2 2021

Shares 195,235 Value ($000) $11,636 Avg Close $54.47 Range $45.84 - $62.09

Q1 2021

Shares 201,598 Value ($000) $10,233 Avg Close $38.96 Range $31.19 - $48.49

Q4 2020

Shares 207,283 Value ($000) $7,643 Avg Close $31.85 Range $25.96 - $36.89

Q3 2020

Shares 207,366 Value ($000) $5,937 Avg Close $26.10 Range $21.83 - $29.60

Q2 2020

Shares 216,462 Value ($000) $5,647 Avg Close $22.53 Range $18.48 - $27.00

Q1 2020

Shares 223,236 Value ($000) $5,032 Avg Close $24.36 Range $13.32 - $30.61

Q4 2019

Shares 222,951 Value ($000) $7,589 Avg Close $28.20 Range $24.32 - $31.60

Q3 2019

Shares 228,190 Value ($000) $6,800 Avg Close $25.87 Range $22.50 - $28.88

Q2 2019

Shares 245,606 Value ($000) $7,418 Avg Close $26.59 Range $21.75 - $31.41

Q1 2019

Shares 255,170 Value ($000) $9,000 Avg Close $30.67 Range $25.17 - $33.96

Q4 2018

Shares 254,735 Value ($000) $7,652 Avg Close $32.42 Range $24.79 - $39.93

Q3 2018

Shares 249,965 Value ($000) $11,296 Avg Close $39.33 Range $35.70 - $42.45

Q2 2018

Shares 256,318 Value ($000) $11,778 Avg Close $40.25 Range $36.27 - $44.32

Q1 2018

Shares 246,822 Value ($000) $10,914 Avg Close $39.00 Range $34.83 - $42.94

Q4 2017

Shares 245,001 Value ($000) $10,567 Avg Close $32.46 Range $28.33 - $37.17

Q3 2017

Shares 250,366 Value ($000) $8,630 Avg Close $29.48 Range $27.05 - $32.51

Q2 2017

Shares 245,672 Value ($000) $8,798 Avg Close $28.97 Range $26.88 - $31.37

Q1 2017

Shares 245,189 Value ($000) $8,523 Avg Close $29.67 Range $27.09 - $32.02

Q4 2016

Shares 204,214 Value ($000) $7,266 Avg Close $26.10 Range $19.35 - $33.31

Q3 2016

Shares 182,991 Value ($000) $4,573 Avg Close $21.06 Range $18.79 - $23.10

Q2 2016

Shares 181,712 Value ($000) $4,452 Avg Close $20.03 Range $17.68 - $22.12

Q1 2016

Shares 165,825 Value ($000) $3,733 Avg Close $15.36 Range $12.48 - $18.79

Q4 2015

Shares 161,703 Value ($000) $2,890 Avg Close $14.45 Range $13.12 - $15.93

Q3 2015

Shares 160,655 Value ($000) $2,760 Avg Close $15.53 Range $13.35 - $17.42

Q2 2015

Shares 155,696 Value ($000) $3,225 Avg Close $17.16 Range $15.54 - $18.46

Q1 2015

Shares 157,003 Value ($000) $3,156 Avg Close $14.75 Range $13.06 - $16.57

Q4 2014

Shares 151,586 Value ($000) $2,992 Avg Close $16.97 Range $14.81 - $18.55

Q3 2014

Shares 151,173 Value ($000) $3,418 Avg Close $17.12 Range $13.89 - $19.97

Q2 2014

Shares 138,135 Value ($000) $2,480 Avg Close $13.98 Range $13.22 - $14.83

Q1 2014

Shares 138,594 Value ($000) $2,466 Avg Close $13.53 Range $12.21 - $15.09

Q4 2013

Shares 140,702 Value ($000) $2,749 Avg Close $14.08 Range $12.49 - $15.25

Q3 2013

Shares 137,207 Value ($000) $2,293 Avg Close $12.11 Range $11.42 - $13.41

Q2 2013

Shares 130,365 Value ($000) $1,944 Avg Close $11.35 Range $10.49 - $12.29

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	14,737	$2,497	$158.36	$137.70 - $177.84
Q3 2025	14,996	$2,091	$130.39	$119.11 - $140.98
Q2 2025	15,832	$2,027	$126.36	$102.11 - $140.95
Q1 2025	16,464	$2,059	$124.96	$109.33 - $137.65
Q4 2024	16,960	$1,935	$130.47	$111.65 - $152.72
Q3 2024	17,670	$2,228	$118.85	$102.31 - $134.27
Q2 2024	18,628	$2,412	$130.12	$115.35 - $147.49
Q1 2024	35,957	$5,330	$122.14	$106.53 - $144.95
Q4 2023	35,376	$4,178	$107.90	$95.11 - $124.46
Q3 2023	35,908	$3,850	$100.40	$92.11 - $107.71
Q2 2023	37,150	$4,047	$97.72	$86.96 - $110.55
Q1 2023	37,123	$4,197	$111.23	$90.76 - $130.54
Q4 2022	44,521	$4,350	$91.75	$68.70 - $107.85
Q3 2022	160,580	$11,393	$71.84	$59.25 - $84.09
Q2 2022	171,220	$11,326	$75.64	$60.78 - $94.76
Q1 2022	192,260	$16,040	$63.45	$47.52 - $84.34
Q4 2021	188,361	$11,692	$58.59	$52.93 - $64.63
Q3 2021	190,568	$11,144	$59.61	$51.19 - $69.35
Q2 2021	195,235	$11,636	$54.47	$45.84 - $62.09
Q1 2021	201,598	$10,233	$38.96	$31.19 - $48.49
Q4 2020	207,283	$7,643	$31.85	$25.96 - $36.89
Q3 2020	207,366	$5,937	$26.10	$21.83 - $29.60
Q2 2020	216,462	$5,647	$22.53	$18.48 - $27.00
Q1 2020	223,236	$5,032	$24.36	$13.32 - $30.61
Q4 2019	222,951	$7,589	$28.20	$24.32 - $31.60
Q3 2019	228,190	$6,800	$25.87	$22.50 - $28.88
Q2 2019	245,606	$7,418	$26.59	$21.75 - $31.41
Q1 2019	255,170	$9,000	$30.67	$25.17 - $33.96
Q4 2018	254,735	$7,652	$32.42	$24.79 - $39.93
Q3 2018	249,965	$11,296	$39.33	$35.70 - $42.45
Q2 2018	256,318	$11,778	$40.25	$36.27 - $44.32
Q1 2018	246,822	$10,914	$39.00	$34.83 - $42.94
Q4 2017	245,001	$10,567	$32.46	$28.33 - $37.17
Q3 2017	250,366	$8,630	$29.48	$27.05 - $32.51
Q2 2017	245,672	$8,798	$28.97	$26.88 - $31.37
Q1 2017	245,189	$8,523	$29.67	$27.09 - $32.02
Q4 2016	204,214	$7,266	$26.10	$19.35 - $33.31
Q3 2016	182,991	$4,573	$21.06	$18.79 - $23.10
Q2 2016	181,712	$4,452	$20.03	$17.68 - $22.12
Q1 2016	165,825	$3,733	$15.36	$12.48 - $18.79
Q4 2015	161,703	$2,890	$14.45	$13.12 - $15.93
Q3 2015	160,655	$2,760	$15.53	$13.35 - $17.42
Q2 2015	155,696	$3,225	$17.16	$15.54 - $18.46
Q1 2015	157,003	$3,156	$14.75	$13.06 - $16.57
Q4 2014	151,586	$2,992	$16.97	$14.81 - $18.55
Q3 2014	151,173	$3,418	$17.12	$13.89 - $19.97
Q2 2014	138,135	$2,480	$13.98	$13.22 - $14.83
Q1 2014	138,594	$2,466	$13.53	$12.21 - $15.09
Q4 2013	140,702	$2,749	$14.08	$12.49 - $15.25
Q3 2013	137,207	$2,293	$12.11	$11.42 - $13.41
Q2 2013	130,365	$1,944	$11.35	$10.49 - $12.29