NUVERRA ENVIRONMENTAL SOLUTI

CUSIP: 67091K203 Class: COM

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

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

Q1 2015
Shares 372 Value ($000) $1 Avg Close — Range —
Q4 2014
Shares 1,472 Value ($000) $8 Avg Close — Range —
Q3 2014
Shares 5,572 Value ($000) $82 Avg Close — Range —