STEEL DYNAMICS INC

Ticker: STLD CUSIP: 858119100 Class: COMMON STOCK

Alyeska Investment Group, L.P.'s Holding History (CIK: 0001453072)

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

Q2 2015

Shares 118,078 Value ($000) $2,446 Avg Close $17.16 Range $15.54 - $18.46

Q1 2015

Shares 932,746 Value ($000) $18,748 Avg Close $14.75 Range $13.06 - $16.57

Q4 2014

Shares 408,693 Value ($000) $8,068 Avg Close $16.97 Range $14.81 - $18.55

Q3 2014

Shares 199,575 Value ($000) $4,512 Avg Close $17.12 Range $13.89 - $19.97

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2015	118,078	$2,446	$17.16	$15.54 - $18.46
Q1 2015	932,746	$18,748	$14.75	$13.06 - $16.57
Q4 2014	408,693	$8,068	$16.97	$14.81 - $18.55
Q3 2014	199,575	$4,512	$17.12	$13.89 - $19.97