STEEL DYNAMICS INC

Ticker: STLD CUSIP: 858119100 Class: COMMON STOCK

Granahan Investment Management, LLC's Holding History (CIK: 0001026710)

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

Q2 2018

Shares 18,691 Value ($000) $859 Avg Close $40.25 Range $36.27 - $44.32

Q1 2018

Shares 5,841 Value ($000) $258 Avg Close $39.00 Range $34.83 - $42.94

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2018	18,691	$859	$40.25	$36.27 - $44.32
Q1 2018	5,841	$258	$39.00	$34.83 - $42.94