F5, INC. — Director's Dealing 2010

Mar 12, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: F5 NETWORKS INC (FFIV)
CIK: 0001048695
Period of Report: 2010-03-10

Reporting Person: BEVIER DEBORAH L (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-03-10	Common Stock	M	9709	$0.00	Acquired	25336	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-03-10	Restricted Stock Units	$0.00	M	9709	Disposed	2019-03-12	Common Stock (9709)	Direct
2010-03-11	Restricted Stock Units	$0.00	A	3138	Acquired	2020-03-11	Common Stock (3138)	Direct

Footnotes

F1: Shares received from vesting of the 3/12/2009 Restricted Stock Unit grant.

F2: Right to receive shares of F5 Networks, Inc. common stock on the vest date.

F3: RSUs will fully vest on the day prior to the date of the annual shareholder meeting for fiscal 2010 to be held in 2011 if the non-employee director continues to serve as a director on that date.