F5 NETWORKS INC

Ticker: FFIV CUSIP: 315616102 Class: EQTY

Main Street Research LLC's Holding History (CIK: 0001513211)

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

Q4 2015

Shares 34,080 Value ($000) $3,304 Avg Close $108.10 Range $94.51 - $123.25

Q3 2015

Shares 72,117 Value ($000) $7,947 Avg Close $122.44 Range $111.43 - $135.20

Q2 2015

Shares 69,749 Value ($000) $8,394 Avg Close $122.95 Range $111.33 - $128.08

Q1 2015

Shares 66,377 Value ($000) $7,629 Avg Close $117.67 Range $108.60 - $132.99

Q4 2014

Shares 64,468 Value ($000) $8,411 Avg Close $124.66 Range $106.82 - $136.11

Q3 2014

Shares 57,586 Value ($000) $6,838 Avg Close $117.47 Range $108.03 - $128.30

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2015	34,080	$3,304	$108.10	$94.51 - $123.25
Q3 2015	72,117	$7,947	$122.44	$111.43 - $135.20
Q2 2015	69,749	$8,394	$122.95	$111.33 - $128.08
Q1 2015	66,377	$7,629	$117.67	$108.60 - $132.99
Q4 2014	64,468	$8,411	$124.66	$106.82 - $136.11
Q3 2014	57,586	$6,838	$117.47	$108.03 - $128.30