Fortinet, Inc. — Director's Dealing 2011

Nov 2, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: FORTINET INC (FTNT)
CIK: 0001262039
Period of Report: 2011-11-01

Reporting Person: Xie Ken (Director, President & CEO, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-10-05	Common Stock	G	440376	—	Acquired	13288650	Direct
2011-10-05	Common Stock	G	1962768	—	Disposed	0	Indirect
2011-10-05	Common Stock	G	2403144	—	Disposed	0	Indirect
2011-11-01	Common Stock	S	60000	$22.3327	Disposed	13228650	Direct
2011-11-01	Common Stock	G	12000	—	Disposed	13216650	Direct

Footnotes

F1: Shares acquired from the The Winnie Hiu-Yin Lee 2009 Grantor Retained Annuity Trust dated September 10, 2009 for which the Reporting Person's spouse serves as trustee (the "Lee GRAT").

F2: Includes 440,376 shares previously reported as held directly by The Ken Xie 2009 Grantor Retained Annuity Trust dated September 10, 2009 for which the Reporting Person serves as trustee (the "Xie 2009 GRAT") which were re-registered on October 5, 2011 and are now held directly by the Reporting Person.

F3: Excludes 440,376 shares previously reported as held directly by Xie 2009 GRAT which were re-registered on October 5, 2011 and are now held directly by the Reporting Person.

F4: Shares held directly by the Xie 2009 GRAT.

F5: Shares held directly by the Lee GRAT.

F6: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 23, 2011.

F7: The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $21.865 to $22.68 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price.