F5, INC. — Director's Dealing 2017

Aug 3, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: F5 NETWORKS INC (FFIV)
CIK: 0001048695
Period of Report: 2017-08-01

Reporting Person: Gibson Benjamin (EVP, Chief Marketing Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-08-01	Common Stock	M	7073	$0.00	Acquired	7073	Direct
2017-08-02	Common Stock	S	2996	$120.0679	Disposed	4077	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-08-01	Restricted Stock Unit	$0.00	M	7073	Disposed		Common Stock (7073)	Direct

Footnotes

F1: Shares acquired upon vesting of the August 1, 2016 award of service-based Restricted Stock Units.

F2: This transaction was executed pursuant to a Rule 10b5-1 trading plan, in multiple trades at prices ranging from $119.5458 to $120.07. The reported price is the weighted average sale price. The reporting person undertakes to provide to the Company, any security holder of the Company, or Securities and Exchange Commission staff, upon request, complete information regarding the number of shares sold at each separate price.

F3: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F4: Twenty five percent (25%) of this August 1, 2016 award of service-based Restricted Stock Units vests on August 1, 2017 and the remaining seventy five percent (75%) vests in twelve equal quarterly increments beginning November 1,2017.

F5: If the reporting person continues to serve as an officer of the Company on the vest date, the corresponding number of shares of Common Stock
of F5 Networks, Inc. will be issued to the reporting person on the vest date.