ROCK CREEK PHARMACEUTICALS I

CUSIP: 772081105 Class: COM

ISTHMUS PARTNERS, LLC's Holding History (CIK: 0001639666)

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

Q1 2015
Shares 1,000 Value ($000) $0 Avg Close — Range —
Q4 2014
Shares 1,000 Value ($000) $0 Avg Close — Range —