F5 NETWORKS INC

Ticker: FFIV CUSIP: 315616102 Class: EQTY

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

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

Q3 2016
Shares 120,275 Value ($000) $14,991 Avg Close $121.40 Range $110.86 - $127.13
Q2 2016
Shares 460,150 Value ($000) $52,383 Avg Close $107.52 Range $93.64 - $124.91
Q1 2016
Shares 718,550 Value ($000) $76,059 Avg Close $95.83 Range $86.03 - $106.86
Q4 2015
Shares 757,500 Value ($000) $73,447 Avg Close $108.10 Range $94.51 - $123.25
Q3 2015
Shares 1,420,260 Value ($000) $164,466 Avg Close $122.44 Range $111.43 - $135.20
Q2 2015
Shares 1,538,465 Value ($000) $185,154 Avg Close $122.95 Range $111.33 - $128.08
Q1 2015
Shares 1,541,710 Value ($000) $177,204 Avg Close $117.67 Range $108.60 - $132.99
Q4 2014
Shares 1,401,585 Value ($000) $182,851 Avg Close $124.66 Range $106.82 - $136.11
Q3 2014
Shares 1,407,865 Value ($000) $167,170 Avg Close $117.47 Range $108.03 - $128.30
Q2 2014
Shares 1,431,260 Value ($000) $159,500 Avg Close $107.63 Range $99.26 - $114.14
Q1 2014
Shares 1,438,795 Value ($000) $153,419 Avg Close $105.80 Range $87.47 - $116.71
Q4 2013
Shares 1,017,315 Value ($000) $92,433 Avg Close $85.18 Range $78.14 - $93.25
Q3 2013
Shares 283,356 Value ($000) $24,315 Avg Close $85.01 Range $68.22 - $94.66
Q2 2013
Shares 273,656 Value ($000) $18,828 Avg Close $76.95 Range $67.53 - $92.57