POLYPORE INTL INC

CUSIP: 73179V103 Class: CMN

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

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

Q2 2015
Shares 5,110,640 Value ($000) $306,025 Avg Close — Range —
Q1 2015
Shares 5,901,058 Value ($000) $347,572 Avg Close — Range —
Q4 2014
Shares 6,159,500 Value ($000) $289,804 Avg Close — Range —
Q3 2014
Shares 6,149,100 Value ($000) $239,261 Avg Close — Range —
Q2 2014
Shares 6,162,200 Value ($000) $294,122 Avg Close — Range —
Q1 2014
Shares 6,290,000 Value ($000) $215,181 Avg Close — Range —
Q4 2013
Shares 4,381,900 Value ($000) $170,456 Avg Close — Range —
Q3 2013
Shares 3,062,400 Value ($000) $125,467 Avg Close — Range —
Q2 2013
Shares 1,879,600 Value ($000) $75,748 Avg Close — Range —