AEGION CORP

CUSIP: 00770F104 Class: COMMON STOCK

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q4 2017
Shares 4,998 Value ($000) $127 Avg Close — Range —
Q4 2013
Shares 484 Value ($000) $11 Avg Close — Range —
Q3 2013
Shares 326 Value ($000) $8 Avg Close — Range —