INTERMUNE INC

CUSIP: 45884X103 Class: COM

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

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

Q2 2014
Shares 4,525,925 Value ($000) $199,820 Avg Close — Range —
Q1 2014
Shares 6,627,500 Value ($000) $221,822 Avg Close — Range —
Q4 2013
Shares 6,472,100 Value ($000) $95,334 Avg Close — Range —
Q3 2013
Shares 6,452,100 Value ($000) $99,233 Avg Close — Range —
Q2 2013
Shares 6,122,100 Value ($000) $58,895 Avg Close — Range —