SEC Form 4 · accession 0001475587-26-000012

Fortinet, Inc. · FTNT

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Ken Xie

Officer — PRESIDENT & CEO · Director

Period of report

Jun 2, 2026

Accepted (ET)

Jun 3, 2026 · 6:39 pm EDT

Rule 10b5-1 plan

yes — trade under a plan

Issuer CIK

0001262039

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock	Jun 2, 2026	M	155,000	$22.90	A	53,133,004	D
Common Stock^F2	Jun 2, 2026	S	9,641	$142.3735	D	53,123,363	D
Common Stock^F3	Jun 2, 2026	S	19,867	$143.4337	D	53,103,496	D
Common Stock^F4	Jun 2, 2026	S	39,854	$144.2902	D	53,063,642	D
Common Stock^F5	Jun 2, 2026	S	12,821	$145.0395	D	53,050,821	D
Common Stock^F6	Jun 2, 2026	S	37,540	$146.3618	D	53,013,281	D
Common Stock^F7	Jun 2, 2026	S	13,790	$147.3747	D	52,999,491	D
Common Stock^F8	Jun 2, 2026	S	18,492	$148.235	D	52,980,999	D
Common Stock^F9	Jun 2, 2026	S	8,627	$148.9353	D	52,972,372	D
Common Stock	holding	—	—		—	4,848,774	I	By spouse

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Nonqualified Stock Option (right to buy)^F10	$22.90	Jun 2, 2026	M	155,000	D	—	Feb 21, 2027	Common Stock	155,000	461,470	D

Explanation of responses

F1The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 9, 2024.
F10The options are fully vested.
F2Represents the weighted average sale price. The lowest price at which shares were sold was $141.81 and the highest price at which shares were sold was $142.80. The Reporting Person undertakes to provide upon request to the staff of the Securities and Exchange Commission, the Issuer or its stockholders, full information regarding the total number of shares sold at each separate price within the ranges set forth in footnotes (2) through (9) to this Form 4.
F3Represents the weighted average sale price. The lowest price at which shares were sold was $142.81 and the highest price at which shares were sold was $143.80.
F4Represents the weighted average sale price. The lowest price at which shares were sold was $143.81 and the highest price at which shares were sold was $144.80.
F5Represents the weighted average sale price. The lowest price at which shares were sold was $144.81 and the highest price at which shares were sold was $145.68.
F6Represents the weighted average sale price. The lowest price at which shares were sold was $145.86 and the highest price at which shares were sold was $146.85.
F7Represents the weighted average sale price. The lowest price at which shares were sold was $146.87 and the highest price at which shares were sold was $147.86.
F8Represents the weighted average sale price. The lowest price at which shares were sold was $147.87 and the highest price at which shares were sold was $148.82.
F9Represents the weighted average sale price. The lowest price at which shares were sold was $148.87 and the highest price at which shares were sold was $149.01.