CEMPRA INC

CUSIP: 15130J109 Class: COM

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

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

Q3 2017
Shares 106,299 Value ($000) $345 Avg Close — Range —
Q1 2017
Shares 1,286 Value ($000) $5 Avg Close — Range —
Q3 2016
Shares 446 Value ($000) $11 Avg Close — Range —