TEKMIRA PHARMACEUTICALS CORP

CUSIP: 87911B209 Class: COM NEW

PRIMECAP MANAGEMENT CO/CA/'s Holding History (CIK: 0000763212)

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

Q2 2015
Shares 2,080,000 Value ($000) $24,669 Avg Close — Range —
Q1 2015
Shares 548,603 Value ($000) $9,579 Avg Close — Range —