MSC INDL DIRECT INC

Ticker: MSM CUSIP: 553530106 Class: EQTY

CASTLEARK MANAGEMENT LLC's Holding History (CIK: 0001106832)

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

Q1 2017

Shares 45,290 Value ($000) $4,654 Avg Close $101.34 Range $90.56 - $105.70

Q1 2016

Shares 91,195 Value ($000) $6,959 Avg Close $66.99 Range $54.19 - $76.58

Q2 2014

Shares 6,100 Value ($000) $583 Avg Close $90.86 Range $85.12 - $96.62

Q3 2013

Shares 6,100 Value ($000) $521 Avg Close $79.67 Range $75.55 - $84.75

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2017	45,290	$4,654	$101.34	$90.56 - $105.70
Q1 2016	91,195	$6,959	$66.99	$54.19 - $76.58
Q2 2014	6,100	$583	$90.86	$85.12 - $96.62
Q3 2013	6,100	$521	$79.67	$75.55 - $84.75