CLEAN HARBORS INC

Ticker: CLH CUSIP: 184496107 Class: EQTY

MSD Partners, L.P.'s Holding History (CIK: 0001514334)

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

Q2 2013
Shares 424,690 Value ($000) $21,460 Avg Close $55.73 Range $50.37 - $61.28