U S CONCRETE INC

CUSIP: 90333L201 Class: COMMON STOCK

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

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

Q4 2017
Shares 2,394 Value ($000) $200 Avg Close — Range —
Q2 2017
Shares 532 Value ($000) $42 Avg Close — Range —