F5 NETWORKS INC

Ticker: FFIV CUSIP: 315616102 Class: EQTY

THORNBURG INVESTMENT MANAGEMENT INC's Holding History (CIK: 0001145020)

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

Q1 2014

Shares 86,089 Value ($000) $9,180 Avg Close $105.80 Range $87.47 - $116.71

Q4 2013

Shares 121,336 Value ($000) $11,025 Avg Close $85.18 Range $78.14 - $93.25

Q3 2013

Shares 146,798 Value ($000) $12,596 Avg Close $85.01 Range $68.22 - $94.66

Q2 2013

Shares 155,700 Value ($000) $10,712 Avg Close $76.95 Range $67.53 - $92.57

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2014	86,089	$9,180	$105.80	$87.47 - $116.71
Q4 2013	121,336	$11,025	$85.18	$78.14 - $93.25
Q3 2013	146,798	$12,596	$85.01	$68.22 - $94.66
Q2 2013	155,700	$10,712	$76.95	$67.53 - $92.57