SYMANTEC CORP

CUSIP: 871503108 Class: COM

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

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

Q4 2015
Shares 180,000 Value ($000) $3,780 Avg Close — Range —
Q3 2015
Shares 3,304,600 Value ($000) $64,341 Avg Close — Range —
Q2 2015
Shares 5,378,000 Value ($000) $125,038 Avg Close — Range —
Q1 2015
Shares 5,395,100 Value ($000) $126,030 Avg Close — Range —
Q4 2014
Shares 5,816,000 Value ($000) $149,239 Avg Close — Range —
Q3 2014
Shares 12,390,202 Value ($000) $291,294 Avg Close — Range —
Q2 2014
Shares 20,293,002 Value ($000) $464,710 Avg Close — Range —
Q1 2014
Shares 21,128,002 Value ($000) $421,926 Avg Close — Range —
Q4 2013
Shares 21,443,308 Value ($000) $505,633 Avg Close — Range —
Q3 2013
Shares 27,024,443 Value ($000) $668,855 Avg Close — Range —
Q2 2013
Shares 28,140,669 Value ($000) $632,321 Avg Close — Range —