CLEAN HARBORS INC

Ticker: CLH CUSIP: 184496107 Class: EQTY

GAM Holding AG's Holding History (CIK: 0001438848)

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

Q3 2018

Shares 6,846 Value ($000) $490 Avg Close $63.60 Range $54.90 - $72.50

Q2 2018

Shares 7,344 Value ($000) $408 Avg Close $51.36 Range $44.75 - $56.00

Q1 2015

Shares 28,974 Value ($000) $1,645 Avg Close $51.78 Range $44.70 - $58.44

Q3 2014

Shares 32,047 Value ($000) $1,728 Avg Close $58.81 Range $53.66 - $65.53

Q2 2014

Shares 95,522 Value ($000) $6,137 Avg Close $59.46 Range $52.02 - $64.30

Q1 2014

Shares 100,934 Value ($000) $5,531 Avg Close $54.49 Range $44.95 - $60.47

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	6,846	$490	$63.60	$54.90 - $72.50
Q2 2018	7,344	$408	$51.36	$44.75 - $56.00
Q1 2015	28,974	$1,645	$51.78	$44.70 - $58.44
Q3 2014	32,047	$1,728	$58.81	$53.66 - $65.53
Q2 2014	95,522	$6,137	$59.46	$52.02 - $64.30
Q1 2014	100,934	$5,531	$54.49	$44.95 - $60.47