REXAHN PHARMACEUTICALS INC

CUSIP: 761640200 Class: COM NEW

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q1 2018
Shares 3,878 Value ($000) $6 Avg Close — Range —
Q4 2017
Shares 28 Value ($000) $0 Avg Close — Range —
Q3 2017
Shares 28 Value ($000) $0 Avg Close — Range —