REXAHN PHARMACEUTICALS INC

CUSIP: 761640101 Class: COM

TWO SIGMA SECURITIES, LLC's Holding History (CIK: 0001450144)

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

Q4 2016
Shares 108,876 Value ($000) $15 Avg Close — Range —
Q3 2016
Shares 185,239 Value ($000) $39 Avg Close — Range —
Q1 2016
Shares 14,757 Value ($000) $5 Avg Close — Range —
Q4 2015
Shares 36,129 Value ($000) $13 Avg Close — Range —