RETROPHIN INC

CUSIP: 761299106 Class: COM

CASTLEARK MANAGEMENT LLC's Holding History (CIK: 0001106832)

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

Q3 2015
Shares 178,034 Value ($000) $3,607 Avg Close — Range —
Q2 2015
Shares 243,650 Value ($000) $8,077 Avg Close — Range —