ONCOTHYREON INC

CUSIP: 682324108 Class: CMN

DEERFIELD MANAGEMENT COMPANY, L.P.'s Holding History (CIK: 0001009258)

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

Q1 2015
Shares 143,200 Value ($000) $233 Avg Close — Range —
Q4 2014
Shares 398,499 Value ($000) $757 Avg Close — Range —
Q3 2014
Shares 2,252,631 Value ($000) $4,325 Avg Close — Range —