AEGION CORP

CUSIP: 00770F104 Class: COMMON STOCK

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

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

Q4 2016
Shares 1,400 Value ($000) $33 Avg Close — Range —
Q2 2016
Shares 1,000 Value ($000) $20 Avg Close — Range —
Q1 2016
Shares 2,700 Value ($000) $57 Avg Close — Range —
Q4 2015
Shares 2,500 Value ($000) $48 Avg Close — Range —
Q3 2015
Shares 8,000 Value ($000) $132 Avg Close — Range —
Q2 2015
Shares 1,000 Value ($000) $19 Avg Close — Range —