CLEAN HARBORS INC

Ticker: CLH CUSIP: 184496107 Class: EQTY

MACKAY SHIELDS LLC's Holding History (CIK: 0000061227)

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

Q1 2021

Shares 59,969 Value ($000) $5,041 Avg Close $84.13 Range $73.69 - $91.94

Q4 2020

Shares 90,727 Value ($000) $6,904 Avg Close $67.02 Range $52.22 - $77.16

Q3 2020

Shares 127,437 Value ($000) $7,141 Avg Close $59.23 Range $52.29 - $67.07

Q2 2020

Shares 121,233 Value ($000) $7,272 Avg Close $55.73 Range $44.36 - $71.22

Q1 2020

Shares 159,196 Value ($000) $8,173 Avg Close $73.03 Range $29.45 - $88.40

Q4 2019

Shares 229,031 Value ($000) $19,640 Avg Close $81.27 Range $71.31 - $88.01

Q3 2019

Shares 214,370 Value ($000) $16,550 Avg Close $73.96 Range $67.83 - $80.06

Q2 2019

Shares 162,347 Value ($000) $11,543 Avg Close $69.62 Range $62.54 - $77.24

Q1 2019

Shares 151,766 Value ($000) $10,856 Avg Close $61.79 Range $48.13 - $72.26

Q4 2018

Shares 135,298 Value ($000) $6,677 Avg Close $62.29 Range $46.21 - $72.46

Q3 2018

Shares 166,782 Value ($000) $11,938 Avg Close $63.60 Range $54.90 - $72.50

Q2 2018

Shares 45,117 Value ($000) $2,507 Avg Close $51.36 Range $44.75 - $56.00

Q1 2018

Shares 19,277 Value ($000) $941 Avg Close $52.41 Range $46.62 - $57.97

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	59,969	$5,041	$84.13	$73.69 - $91.94
Q4 2020	90,727	$6,904	$67.02	$52.22 - $77.16
Q3 2020	127,437	$7,141	$59.23	$52.29 - $67.07
Q2 2020	121,233	$7,272	$55.73	$44.36 - $71.22
Q1 2020	159,196	$8,173	$73.03	$29.45 - $88.40
Q4 2019	229,031	$19,640	$81.27	$71.31 - $88.01
Q3 2019	214,370	$16,550	$73.96	$67.83 - $80.06
Q2 2019	162,347	$11,543	$69.62	$62.54 - $77.24
Q1 2019	151,766	$10,856	$61.79	$48.13 - $72.26
Q4 2018	135,298	$6,677	$62.29	$46.21 - $72.46
Q3 2018	166,782	$11,938	$63.60	$54.90 - $72.50
Q2 2018	45,117	$2,507	$51.36	$44.75 - $56.00
Q1 2018	19,277	$941	$52.41	$46.62 - $57.97