ROCK CREEK PHARMACEUTICALS I

CUSIP: 772081204 Class: COMMON STOCK

Tower Research Capital LLC (TRC)'s Holding History (CIK: 0001533421)

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

Q3 2015
Shares 18,116 Value ($000) $15 Avg Close — Range —
Q2 2015
Shares 18,401 Value ($000) $28 Avg Close — Range —