John Whittle

CIK: 0001476336

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)8 (14.0%)

Position reduction

Option Exercises (M)36 (63.2%)

Derivative conversions

Awards (A)4 (7.0%)

Compensation grants

Other (G, F, J, C, D, …)9 (15.8%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

FTNT

Fortinet, Inc.

Discretionary Trading P&L

Holdings

Transaction History (57 total)

FTNT
Fortinet, Inc.
Nov 1, 2026
Exercise(M)
Direct
1.8K shares-
FTNT
Fortinet, Inc.
Nov 1, 2026
Tax Payment(F)
Direct
2.3K shares at avg. $136.08$314K
FTNT
Fortinet, Inc.
Nov 1, 2026
Exercise(M)
Direct
1.1K shares-
FTNT
Fortinet, Inc.
Nov 1, 2026
Exercise(M)
Direct
1.6K shares-
FTNT
Fortinet, Inc.
Sep 15, 2026
Exercise(M)
Direct
2.8K shares at avg. $62.11$176K
FTNT
Fortinet, Inc.
Sep 15, 2026
Sale(S)
Direct
2.8K shares at avg. $168.74$478K
FTNT
Fortinet, Inc.
Sep 14, 2026
Sale(S)
Direct
1.2K shares at avg. $166.02$192K
FTNT
Fortinet, Inc.
Sep 14, 2026
Sale(S)
Direct
52.7K shares at avg. $165.43$8.7M
FTNT
Fortinet, Inc.
Sep 14, 2026
Exercise(M)
Direct
53.9K shares at avg. $62.11$3.3M
FTNT
Fortinet, Inc.
Aug 1, 2026
Exercise(M)
Direct
1.6K shares-
FTNT
Fortinet, Inc.
Aug 1, 2026
Exercise(M)
Direct
1.1K shares-
FTNT
Fortinet, Inc.
Aug 1, 2026
Exercise(M)
Direct
1.8K shares-
FTNT
Fortinet, Inc.
Aug 1, 2026
Tax Payment(F)
Direct
2.3K shares at avg. $161.95$374K
FTNT
Fortinet, Inc.
May 21, 2026
Sale(S)
Direct
4.2K shares at avg. $129.55$546K
FTNT
Fortinet, Inc.
May 21, 2026
Exercise(M)
Direct
89K shares at avg. $34.39$3.1M
FTNT
Fortinet, Inc.
May 21, 2026
Exercise(M)
Direct
57K shares at avg. $22.90$1.3M
FTNT
Fortinet, Inc.
May 21, 2026
Sale(S)
Direct
86.8K shares at avg. $128.15$11.1M
FTNT
Fortinet, Inc.
May 21, 2026
Sale(S)
Direct
55K shares at avg. $128.74$7.1M
FTNT
Fortinet, Inc.
May 1, 2026
Tax Payment(F)
Direct
2.3K shares at avg. $86.29$199K
FTNT
Fortinet, Inc.
May 1, 2026
Exercise(M)
Direct
1.6K shares-
FTNT
Fortinet, Inc.
May 1, 2026
Exercise(M)
Direct
1.8K shares-
FTNT
Fortinet, Inc.
May 1, 2026
Exercise(M)
Direct
1.1K shares-
FTNT
Fortinet, Inc.
Feb 20, 2026
Award(A)
Restricted Stock Units
Direct
15.7K shares-
FTNT
Fortinet, Inc.
Feb 1, 2026
Tax Payment(F)
Direct
13K shares at avg. $81.26$1.1M
FTNT
Fortinet, Inc.
Feb 1, 2026
Exercise(M)
Direct
20K shares-

		Type	Shares	Price		Ownership
Nov 1, 2026	FTNT Fortinet, Inc.	Exercise(M)	1,826	-	$0	Direct
Nov 1, 2026	FTNT Fortinet, Inc.	Tax Payment(F)	2,309	$136.08	$314,209	Direct
Nov 1, 2026	FTNT Fortinet, Inc.	Exercise(M)	1,138	-	$0	Direct
Nov 1, 2026	FTNT Fortinet, Inc.	Exercise(M)	1,608	-	$0	Direct
Sep 15, 2026	FTNT Fortinet, Inc.	Exercise(M)	2,835	$62.11	$176,082	Direct
Sep 15, 2026	FTNT Fortinet, Inc.	Sale(S)	2,835	$168.74	$478,378	Direct
Sep 14, 2026	FTNT Fortinet, Inc.	Sale(S)	1,158	$166.02	$192,248	Direct
Sep 14, 2026	FTNT Fortinet, Inc.	Sale(S)	52,707	$165.43	$8,719,182	Direct
Sep 14, 2026	FTNT Fortinet, Inc.	Exercise(M)	53,865	$62.11	$3,345,555	Direct
Aug 1, 2026	FTNT Fortinet, Inc.	Exercise(M)	1,608	-	$0	Direct
Aug 1, 2026	FTNT Fortinet, Inc.	Exercise(M)	1,138	-	$0	Direct
Aug 1, 2026	FTNT Fortinet, Inc.	Exercise(M)	1,827	-	$0	Direct
Aug 1, 2026	FTNT Fortinet, Inc.	Tax Payment(F)	2,310	$161.95	$374,105	Direct
May 21, 2026	FTNT Fortinet, Inc.	Sale(S)	4,216	$129.55	$546,172	Direct
May 21, 2026	FTNT Fortinet, Inc.	Exercise(M)	89,000	$34.39	$3,060,354	Direct
May 21, 2026	FTNT Fortinet, Inc.	Exercise(M)	57,015	$22.90	$1,305,415	Direct
May 21, 2026	FTNT Fortinet, Inc.	Sale(S)	86,820	$128.15	$11,125,610	Direct
May 21, 2026	FTNT Fortinet, Inc.	Sale(S)	54,979	$128.74	$7,078,167	Direct
May 1, 2026	FTNT Fortinet, Inc.	Tax Payment(F)	2,309	$86.29	$199,244	Direct
May 1, 2026	FTNT Fortinet, Inc.	Exercise(M)	1,608	-	$0	Direct
May 1, 2026	FTNT Fortinet, Inc.	Exercise(M)	1,827	-	$0	Direct
May 1, 2026	FTNT Fortinet, Inc.	Exercise(M)	1,137	-	$0	Direct
Feb 20, 2026	FTNT Fortinet, Inc.	Award(A) Restricted Stock Units	15,660	-	-	Direct
Feb 1, 2026	FTNT Fortinet, Inc.	Tax Payment(F)	12,951	$81.26	$1,052,398	Direct
Feb 1, 2026	FTNT Fortinet, Inc.	Exercise(M)	19,962	-	$0	Direct

1-25 of 57 transactions

About Whittle John

Whittle John (SEC CIK 0001476336) files insider reports with the SEC as Chief Operating Officer of Fortinet, Inc. (FTNT).

Signal8 holds 16 ownership filings by Whittle John, all Form 4s, filed between Nov 5, 2024 and Nov 3, 2026. Those filings report 57 transactions, from Nov 1, 2024 to Nov 1, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Whittle John's filings is in SUNNYVALE, CA.

Recent filings by Whittle John

Nov 1, 2026: Option exercise of FTNT shares (Form 4, code M).
Nov 1, 2026: Tax withholding of FTNT shares (Form 4, code F).
Nov 1, 2026: Option exercises of FTNT shares (2 lines, Form 4, code M).
Sep 15, 2026: Option exercise of FTNT shares (Form 4, code M).
Sep 15, 2026: Open-market sale of FTNT shares (Form 4, code S).

Other insiders filing for Fortinet, Inc. (FTNT)

Xie Ken, President & CEO
Xie Michael, VP, Engineering & CTO
Ohlgart Christiane, Chief Financial Officer
STAVRIDIS JAMES G., Director
GOLDMAN KENNETH A, Director
Hu Jean X., Director

How to read Form 4 transaction codes