F5, INC. — Director's Dealing 2018

Feb 5, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: F5 NETWORKS INC (FFIV)
CIK: 0001048695
Period of Report: 2018-02-01

Reporting Person: DiLullo John D (EVP, Worldwide Sales)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-02-01	Common Stock	M	3805	$0.00	Acquired	9323	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-02-01	Restricted Stock Unit	$0.00	M	647	Disposed		Common Stock (647)	Direct
2018-02-01	Restricted Stock Unit	$0.00	M	2542	Disposed		Common Stock (2542)	Direct
2018-02-01	Restricted Stock Unit	$0.00	M	616	Disposed		Common Stock (616)	Direct

Footnotes

F1: Shares acquired upon vesting of the November 2, 2015, November 1, 2016 and November 1, 2017 awards of service-based Restricted Stock Units.

F2: Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.

F3: The November 1, 2017 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2018.

F4: If the reporting person continues to provide services to the Company through 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.

F5: This November 2, 2015 award of service-based Restricted Stock Units vests twenty five percent (25%) on November 1, 2016, and the remaining seventy five percent (75%) vests in twelve equal quarterly increments beginning February 1, 2017.

F6: This November 1, 2016 award of service-based Restricted Stock Units vests in sixteen equal quarterly increments beginning February 1, 2017.