F5, INC. - Director's Dealing 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: F5 NETWORKS INC (FFIV)
CIK: 0001048695
Period of Report: 2010-10-29

Reporting Person: EAMES EDWARD JULIAN (Sr. VP Business Operations)

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-10-29	Common Stock	A	119	$60.418	Acquired	119	Direct
2010-11-01	Common Stock	M	8927	$0.00	Acquired	9046	Direct
2010-11-01	Common Stock	S	6109	$116.5795	Disposed	2937	Direct

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-11-01	Restricted Stock Units	$0.00	M	6932	Disposed	2019-08-03	Common Stock (6932)	Direct
2010-11-01	Restricted Stock Units	$0.00	M	1995	Disposed	2020-08-02	Common Stock (1995)	Direct

F1: Reporting a purchase of shares acquired under the F5 Networks, Inc. stock purchase plan.

F2: Shares received from vesting of the 8/3/2009 and 8/2/2010 (exercisable date of 11/1/2010) restricted stock unit grants.

F3: Sale pursuant to the terms of a 10b5-1 trading plan.