Transactions
48
Insider / Fortinet, Inc.
Whittle John
CHIEF OPERATING OFFICER at Fortinet, Inc.
- Company
- Fortinet, Inc.
- Ticker
- FTNT
- First filing on record
- November 4, 2025
- Latest trade on record
- September 15, 2026
- SEC filings
- EDGAR ↗
Whittle John, CHIEF OPERATING OFFICER at Fortinet, Inc., has disclosed 48 transactions in FTNT since November 4, 2025: 0 purchases (0 open-market buys) and 10 sales, worth about $37.9M at the reported prices. The latest was filed September 16, 2026, 1 day after the trade.
Open-market buys
0
Sales
10
Avg. disclosure lag
2.4d
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
Bought (above the line)Sold (below the line)Other transaction
In the last 12 months Whittle John made no purchases and 10 sales worth $30M, plus 38 other transactions. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
Whittle John has traded 1 stock on record; the largest by dollars is FTNT.
Reporting lag
Does this person report on time? One bar per filing against the Form 4 deadline.
On timeLate
0 of 8 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| M | Option exercise or conversion | 36 | 491,214 | $7.9M |
| S | Open-market sale | 6 | 202,715 | $28.1M |
| F | Shares withheld for tax | 4 | 19,860 | $1.8M |
| A | Grant or award | 2 | 35,622 | — |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 41 | 0 | 9 · $29.8M |
| 2025 | 7 | 0 | 1 · $198K |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| FTNT | Option / conversion M | September 15, 2026 | September 16, 2026 | 1d | 2,835 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| FTNT | Option / conversion M | September 14, 2026 | September 16, 2026 | 2d | 53,865 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| FTNT | Sell S | September 15, 2026 | September 16, 2026 | 1d | 2,835 | $169 | $478K | 10b5-1 plan | Form 4 ↗ | |
| FTNT | Option / conversion M | September 15, 2026 | September 16, 2026 | 1d | 2,835 | $62 | $176K | 10b5-1 plan | Form 4 ↗ | |
| FTNT | Sell S | September 14, 2026 | September 16, 2026 | 2d | 1,158 | $166 | $192K | 10b5-1 plan | Form 4 ↗ | |
| FTNT | Sell S | September 14, 2026 | September 16, 2026 | 2d | 52,707 | $165 | $8.7M | 10b5-1 plan | Form 4 ↗ | |
| FTNT | Option / conversion M | September 14, 2026 | September 16, 2026 | 2d | 53,865 | $62 | $3.3M | 10b5-1 plan | Form 4 ↗ | |
| FTNT | Option / conversion M | August 1, 2026 | August 4, 2026 | 3d | 1,138 | — | — | derivative | Form 4 ↗ | |
| FTNT | Option / conversion M | August 1, 2026 | August 4, 2026 | 3d | 1,827 | — | — | derivative | Form 4 ↗ | |
| FTNT | Option / conversion M | August 1, 2026 | August 4, 2026 | 3d | 1,608 | — | — | derivative | Form 4 ↗ | |
| FTNT | Sell F | August 1, 2026 | August 4, 2026 | 3d | 2,310 | $162 | $374K | Form 4 ↗ | ||
| FTNT | Option / conversion M | August 1, 2026 | August 4, 2026 | 3d | 1,138 | — | — | Form 4 ↗ | ||
| FTNT | Option / conversion M | August 1, 2026 | August 4, 2026 | 3d | 1,827 | — | — | Form 4 ↗ | ||
| FTNT | Option / conversion M | August 1, 2026 | August 4, 2026 | 3d | 1,608 | — | — | Form 4 ↗ | ||
| FTNT | Option / conversion M | May 21, 2026 | May 22, 2026 | 1d | 57,015 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| FTNT | Option / conversion M | May 21, 2026 | May 22, 2026 | 1d | 89,000 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| FTNT | Sell S | May 21, 2026 | May 22, 2026 | 1d | 4,216 | $130 | $546K | 10b5-1 plan | Form 4 ↗ | |
| FTNT | Sell S | May 21, 2026 | May 22, 2026 | 1d | 54,979 | $129 | $7.1M | 10b5-1 plan | Form 4 ↗ | |
| FTNT | Sell S | May 21, 2026 | May 22, 2026 | 1d | 86,820 | $128 | $11.1M | 10b5-1 plan | Form 4 ↗ | |
| FTNT | Option / conversion M | May 21, 2026 | May 22, 2026 | 1d | 57,015 | $23 | $1.3M | 10b5-1 plan | Form 4 ↗ | |
| FTNT | Option / conversion M | May 21, 2026 | May 22, 2026 | 1d | 89,000 | $34 | $3.1M | 10b5-1 plan | Form 4 ↗ | |
| FTNT | Option / conversion M | May 1, 2026 | May 5, 2026 | 4d | 1,137 | — | — | derivative | Form 4 ↗ | |
| FTNT | Option / conversion M | May 1, 2026 | May 5, 2026 | 4d | 1,827 | — | — | derivative | Form 4 ↗ | |
| FTNT | Option / conversion M | May 1, 2026 | May 5, 2026 | 4d | 1,608 | — | — | derivative | Form 4 ↗ | |
| FTNT | Sell F | May 1, 2026 | May 5, 2026 | 4d | 2,309 | $86 | $199K | Form 4 ↗ | ||
| FTNT | Option / conversion M | May 1, 2026 | May 5, 2026 | 4d | 1,137 | — | — | Form 4 ↗ | ||
| FTNT | Option / conversion M | May 1, 2026 | May 5, 2026 | 4d | 1,827 | — | — | Form 4 ↗ | ||
| FTNT | Option / conversion M | May 1, 2026 | May 5, 2026 | 4d | 1,608 | — | — | Form 4 ↗ | ||
| FTNT | Other A | February 20, 2026 | February 23, 2026 | 3d | 15,660 | — | — | derivative | Form 4 ↗ | |
| FTNT | Option / conversion M | February 1, 2026 | February 3, 2026 | 2d | 19,962 | — | — | derivative | Form 4 ↗ | |
| FTNT | Option / conversion M | February 1, 2026 | February 3, 2026 | 2d | 4,550 | — | — | derivative | Form 4 ↗ | |
| FTNT | Option / conversion M | February 1, 2026 | February 3, 2026 | 2d | 1,827 | — | — | derivative | Form 4 ↗ | |
| FTNT | Option / conversion M | February 1, 2026 | February 3, 2026 | 2d | 1,608 | — | — | derivative | Form 4 ↗ | |
| FTNT | Option / conversion M | February 1, 2026 | February 3, 2026 | 2d | 1,185 | — | — | derivative | Form 4 ↗ | |
| FTNT | Sell F | February 1, 2026 | February 3, 2026 | 2d | 12,951 | $81 | $1.1M | Form 4 ↗ | ||
| FTNT | Option / conversion M | February 1, 2026 | February 3, 2026 | 2d | 19,962 | — | — | Form 4 ↗ | ||
| FTNT | Option / conversion M | February 1, 2026 | February 3, 2026 | 2d | 4,550 | — | — | Form 4 ↗ | ||
| FTNT | Option / conversion M | February 1, 2026 | February 3, 2026 | 2d | 1,827 | — | — | Form 4 ↗ | ||
| FTNT | Option / conversion M | February 1, 2026 | February 3, 2026 | 2d | 1,608 | — | — | Form 4 ↗ | ||
| FTNT | Option / conversion M | February 1, 2026 | February 3, 2026 | 2d | 1,185 | — | — | Form 4 ↗ | ||
| FTNT | Other A | January 16, 2026 | January 20, 2026 | 4d | 19,962 | — | — | derivative | Form 4 ↗ | |
| FTNT | Option / conversion M | November 1, 2025 | November 4, 2025 | 3d | 1,827 | — | — | derivative | Form 4 ↗ | |
| FTNT | Option / conversion M | November 1, 2025 | November 4, 2025 | 3d | 1,608 | — | — | derivative | Form 4 ↗ | |
| FTNT | Option / conversion M | November 1, 2025 | November 4, 2025 | 3d | 1,180 | — | — | derivative | Form 4 ↗ | |
| FTNT | Sell F | November 1, 2025 | November 4, 2025 | 3d | 2,290 | $86 | $198K | Form 4 ↗ | ||
| FTNT | Option / conversion M | November 1, 2025 | November 4, 2025 | 3d | 1,827 | — | — | Form 4 ↗ | ||
| FTNT | Option / conversion M | November 1, 2025 | November 4, 2025 | 3d | 1,608 | — | — | Form 4 ↗ | ||
| FTNT | Option / conversion M | November 1, 2025 | November 4, 2025 | 3d | 1,180 | — | — | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| September 16, 2026 | Form 4 | 0001476336-26-000014 | 7 | published | EDGAR ↗ |
| August 4, 2026 | Form 4 | 0001476336-26-000012 | 7 | published | EDGAR ↗ |
| May 22, 2026 | Form 4 | 0001476336-26-000010 | 7 | published | EDGAR ↗ |
| May 5, 2026 | Form 4 | 0001476336-26-000008 | 7 | published | EDGAR ↗ |
| February 23, 2026 | Form 4 | 0001476336-26-000006 | 1 | published | EDGAR ↗ |
| February 3, 2026 | Form 4 | 0001476336-26-000004 | 11 | published | EDGAR ↗ |
| January 20, 2026 | Form 4 | 0001476336-26-000002 | 1 | published | EDGAR ↗ |
| November 4, 2025 | Form 4 | 0001476336-25-000004 | 7 | published | EDGAR ↗ |
Other insiders at Fortinet, Inc.
- Xie Ken PRESIDENT & CEO 72 rows
- Xie Michael VP, ENGINEERING & CTO 63 rows
- Hu Jean X. EVP, CFO and Treasurer 52 rows
- Ohlgart Christiane Chief Financial Officer 35 rows
- STAVRIDIS JAMES G. Director 13 rows
- GOLDMAN KENNETH A Director 12 rows
- Hsieh Ming Director 11 rows
- Napolitano Janet Director 11 rows
- Sim Judith Director 11 rows
- Kan Derek T. Director 6 rows
Everyone on file, with contracts and lobbying under the company's name: Fortinet, Inc..
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Rule 10b5-1 trading plans The plan must be set up when the insider has no important non-public information.
- Options and derivatives on Form 4 Table I = shares. Table II = options and other derivatives.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 8 | 48 | November 4, 2025 | September 16, 2026 | Form 4 list on EDGAR |
Site built October 22, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.