CLEAN HARBORS INC

Ticker: CLH CUSIP: 184496107 Class: EQTY

DEAN INVESTMENT ASSOCIATES, LLC's Holding History (CIK: 0000846797)

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

Q1 2015

Shares 44,585 Value ($000) $2,532 Avg Close $51.78 Range $44.70 - $58.44

Q4 2014

Shares 44,405 Value ($000) $2,134 Avg Close $48.74 Range $43.05 - $53.84

Q3 2014

Shares 51,283 Value ($000) $2,765 Avg Close $58.81 Range $53.66 - $65.53

Q2 2014

Shares 53,840 Value ($000) $3,459 Avg Close $59.46 Range $52.02 - $64.30

Q1 2014

Shares 53,319 Value ($000) $2,921 Avg Close $54.49 Range $44.95 - $60.47

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2015	44,585	$2,532	$51.78	$44.70 - $58.44
Q4 2014	44,405	$2,134	$48.74	$43.05 - $53.84
Q3 2014	51,283	$2,765	$58.81	$53.66 - $65.53
Q2 2014	53,840	$3,459	$59.46	$52.02 - $64.30
Q1 2014	53,319	$2,921	$54.49	$44.95 - $60.47