TIMKENSTEEL CORP

Ticker: MTUS CUSIP: 887399103 Class: Common Stock

EMERALD ADVISERS, LLC's Holding History (CIK: 0001015083)

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

Q1 2018

Shares 12,047 Value ($000) $183 Avg Close $16.77 Range $13.92 - $20.24

Q4 2017

Shares 12,047 Value ($000) $183 Avg Close $15.20 Range $12.54 - $18.51

Q3 2017

Shares 355,391 Value ($000) $5,864 Avg Close $15.33 Range $13.66 - $17.23

Q2 2017

Shares 748,778 Value ($000) $11,509 Avg Close $14.82 Range $12.48 - $20.80

Q1 2017

Shares 786,968 Value ($000) $14,882 Avg Close $17.78 Range $14.26 - $23.00

Q4 2014

Shares 6,957 Value ($000) $258 Avg Close $36.23 Range $29.65 - $45.20

Q3 2014

Shares 187,448 Value ($000) $8,714 Avg Close $45.14 Range $38.50 - $49.75

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	12,047	$183	$16.77	$13.92 - $20.24
Q4 2017	12,047	$183	$15.20	$12.54 - $18.51
Q3 2017	355,391	$5,864	$15.33	$13.66 - $17.23
Q2 2017	748,778	$11,509	$14.82	$12.48 - $20.80
Q1 2017	786,968	$14,882	$17.78	$14.26 - $23.00
Q4 2014	6,957	$258	$36.23	$29.65 - $45.20
Q3 2014	187,448	$8,714	$45.14	$38.50 - $49.75