STEEL DYNAMICS INC

Ticker: STLD CUSIP: 858119100 Class: COMMON STOCK

TWIN CAPITAL MANAGEMENT INC's Holding History (CIK: 0001059187)

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

Q3 2018

Shares 12,132 Value ($000) $548 Avg Close $39.33 Range $35.70 - $42.45

Q2 2018

Shares 17,437 Value ($000) $801 Avg Close $40.25 Range $36.27 - $44.32

Q1 2018

Shares 14,531 Value ($000) $643 Avg Close $39.00 Range $34.83 - $42.94

Q4 2017

Shares 17,498 Value ($000) $755 Avg Close $32.46 Range $28.33 - $37.17

Q3 2017

Shares 17,685 Value ($000) $610 Avg Close $29.48 Range $27.05 - $32.51

Q2 2017

Shares 21,800 Value ($000) $781 Avg Close $28.97 Range $26.88 - $31.37

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	12,132	$548	$39.33	$35.70 - $42.45
Q2 2018	17,437	$801	$40.25	$36.27 - $44.32
Q1 2018	14,531	$643	$39.00	$34.83 - $42.94
Q4 2017	17,498	$755	$32.46	$28.33 - $37.17
Q3 2017	17,685	$610	$29.48	$27.05 - $32.51
Q2 2017	21,800	$781	$28.97	$26.88 - $31.37