HERITAGE CRYSTAL CLEAN INC

CUSIP: 42726M106 Class: Common Stock

Walleye Trading LLC's Holding History (CIK: 0001388391)

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

Q1 2017
Shares 3,400 Value ($000) $47 Avg Close — Range —
Q4 2016
Shares 4,100 Value ($000) $64 Avg Close — Range —
Q3 2016
Shares 4,300 Value ($000) $57 Avg Close — Range —
Q4 2015
Shares 5,300 Value ($000) $56 Avg Close — Range —