CLEAN HARBORS INC

Ticker: CLH CUSIP: 184496107 Class: EQTY

Starboard Value LP's Holding History (CIK: 0001517137)

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

Q1 2015
Shares 450,000 Value ($000) $25,551 Avg Close $51.78 Range $44.70 - $58.44
Q4 2014
Shares 1,350,000 Value ($000) $64,868 Avg Close $48.74 Range $43.05 - $53.84