ONCOTHYREON INC

CUSIP: 682324108 Class: CMN

PRINCIPAL FINANCIAL GROUP INC's Holding History (CIK: 0001126328)

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

Q1 2016
Shares 16,119 Value ($000) $20 Avg Close — Range —
Q4 2015
Shares 16,119 Value ($000) $36 Avg Close — Range —
Q3 2015
Shares 17,309 Value ($000) $47 Avg Close — Range —
Q3 2014
Shares 23,788 Value ($000) $46 Avg Close — Range —