Comparable stake leader
VANGUARD CAPITAL MANAGEMENT LLC
SEC ownership of Fortinet, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001262039.
Disclosed value leader
BlackRock, Inc.
Comparable rows
1/50
Latest evidence
01 Nov 2026
- Public ticker
- FTNT on Nasdaq
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
VANGUARD CAPITAL MANAGEMENT LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
1 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
VANGUARD CAPITAL MANAGEMENT LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
01 Nov 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001262039
- Issuer location
- Sunnyvale, CA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Fortinet, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
VANGUARD CAPITAL MANAGEME...
Disclosed value leader
BlackRock, Inc.
Comparable rows
1/50
Latest evidence
01 Nov 2026
13F
13D/G
3/4/5
Lead comparable stake: 6.2%
49 rows are not safely comparable across share classes.
13D/G row: VANGUARD CAPITAL MANAGEMENT LLC
Showing 1-8 of 50 holder rows.
Quick read
VANGUARD CAPITAL MANAGEMENT LLC leads the comparable SEC ownership view at 6.2%.
1 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens VANGUARD CAPITAL MANAGEMENT LLC's linked filing trail.
Comparable ownership
Top 1
VANGUARD CAPITAL MANAGEMENT LLC
6.2%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
13D/G
Company · Vanguard Capital Management
|
6.2%
Reported 13D/G
· 31 Mar 2026
|
$6,246,797,689
40,663,961 shares
|
— | 30 Jun 2026 |
| BlackRock, Inc. |
13F
Company
|
—
denominator unverified
|
$9,561,650,069
62,242,221 shares
|
— | 30 Jun 2026 |
| Ken Xie |
3/4/5
President & CEO, Director
|
—
mixed-class rows
|
$7,960,482,487
58,299,564 shares
mixed-class rows
|
-$85,317,103 | 01 Nov 2026 |
| STATE STREET CORP |
13F
Company
|
—
denominator unverified
|
$4,551,860,760
29,630,652 shares
|
— | 30 Jun 2026 |
| Michael Xie |
3/4/5
VP, Engineering & CTO, Director
|
—
mixed-class rows
|
$3,957,651,481
35,522,076 shares
mixed-class rows
|
-$29,639,457 | 01 Nov 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
Company
|
—
denominator unverified
|
$3,816,640,509
24,844,685 shares
|
— | 30 Jun 2026 |
| Invesco Ltd. |
13F
Company
|
—
denominator unverified
|
$3,782,280,478
24,621,016 shares
|
— | 30 Jun 2026 |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
Company
|
—
denominator unverified
|
$2,679,014,063
17,439,799 shares
|
— | 30 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$143,495,234.
Buys
$0
Insiders: 0
Sells
$143,495,234
Insiders: 4
Net
-$143,495,234
Shares: -1,226,663
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 1,226,663
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 221,352 | $0 | $30,683,258 | -$30,683,258 |
| 3-6 | 0 | 476,776 | $0 | $69,694,329 | -$69,694,329 |
| 6-9 | 0 | 9,185 | $0 | $832,937 | -$832,937 |
| 9-12 | 0 | 519,350 | $0 | $42,284,710 | -$42,284,710 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-17 of 17 reporting-owner rows connected to Fortinet, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
17
Largest Forms 3/4/5 holder
Ken Xie
Net 12M change
-$143.5M
Full value: -$143,495,235 · USD · 12-month changeLatest report
01 Nov 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Ken Xie | President & CEO, Director | $7,960,482,487 | -$85,317,103 | -1.1% | Mixed | 01 Nov 2026 |
| Michael Xie | VP, Engineering & CTO, Director | $3,957,651,481 | -$29,639,457 | -0.74% | Mixed | 01 Nov 2026 |
| William H. Neukom | Director | $31,901,235 | Mixed | 12 Jun 2025 | ||
| Judith Sim | Director | $20,083,753 | Mixed | 30 Sep 2026 | ||
| John Whittle | Chief Operating Officer | $19,823,642 | -$28,139,757 | -59% | Mixed | 01 Nov 2026 |
| Kenneth A. Goldman | Director | $6,899,624 | Mixed | 30 Sep 2026 | ||
| Jean X. Hu | Director | $6,182,218 | Mixed | 30 Sep 2026 | ||
| Christopher B. Paisley | Director | $4,744,663 | Mixed | 17 Jun 2021 | ||
| Christiane Ohlgart | Chief Financial Officer | $3,192,360 | -$398,918 | -11% | Mixed | 01 Nov 2026 |
| Keith F. Jensen | Chief Financial Officer | $2,905,492 | Mixed | 01 May 2025 | ||
| James G. Stavridis | Director | $2,824,085 | Mixed | 30 Sep 2026 | ||
| Patrice Perche | Chief Revenue Off./EVP Supp. | $2,570,435 | Mixed | 21 Dec 2023 | ||
| Ming Hsieh | Director | $1,679,769 | Mixed | 30 Sep 2026 | ||
| Janet Napolitano | Director | $918,877 | Mixed | 30 Sep 2026 | ||
| Mary Agnes Wilderotter | Director | $645,498 | Mixed | 12 Jun 2025 | ||
| Kelly Ducourty | Director | $142,393 | Mixed | 16 Jun 2022 | ||
| Kan Derek T. | Director | $70,511 | Mixed | 30 Sep 2026 |
Recent insider transactions for Fortinet, Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Ken Xie | FTNT | Common Stock | Sale | -0.3% | -$20,880,684 | $129.31 | -161,483 | 52,972,372 | 02 Nov 2026 | Direct |
| Ken Xie | FTNT | Common Stock | Options Exercise | 0.29% | 155,000 | 53,133,855 | 02 Nov 2026 | Direct | ||
| Ken Xie | FTNT | Stock Option Exercise | Options Exercise | -50.6% | -155,000 | 151,470 | 02 Nov 2026 | Direct | ||
| Michael Xie | FTNT | Common Stock | Sale | -0.03% | -$404,125 | $129.49 | -3,121 | 9,918,360 | 02 Nov 2026 | Direct |
| John Whittle | FTNT | Common Stock | Tax liability | -2.27% | -2,309 | 99,250 | 01 Nov 2026 | Direct | ||
| John Whittle | FTNT | Common Stock | Options Exercise | 4.71% | 4,572 | 101,559 | 01 Nov 2026 | Direct | ||
| John Whittle | FTNT | Restricted Stock Units | Options Exercise | -74% | -4,572 | 1,609 | 01 Nov 2026 | Direct | ||
| Ken Xie | FTNT | Common Stock | Tax liability | -0.01% | -6,611 | 52,978,855 | 01 Nov 2026 | Direct | ||
| Ken Xie | FTNT | Common Stock | Options Exercise | 0.02% | 13,094 | 52,985,466 | 01 Nov 2026 | Direct | ||
| Ken Xie | FTNT | Restricted Stock Units | Options Exercise | -67.7% | -13,094 | 6,260 | 01 Nov 2026 | Direct | ||
| Michael Xie | FTNT | Common Stock | Tax liability | -0.03% | -3,184 | 9,921,481 | 01 Nov 2026 | Direct | ||
| Michael Xie | FTNT | Common Stock | Options Exercise | 0.06% | 6,305 | 9,924,665 | 01 Nov 2026 | Direct | ||
| Michael Xie | FTNT | Restricted Stock Units | Options Exercise | -69.5% | -6,305 | 2,764 | 01 Nov 2026 | Direct | ||
| Christiane Ohlgart | FTNT | Common Stock | Tax liability | -6.49% | -777 | 11,204 | 01 Nov 2026 | Direct | ||
| Christiane Ohlgart | FTNT | Common Stock | Options Exercise | 15.8% | 1,636 | 11,981 | 01 Nov 2026 | Direct | ||
| Christiane Ohlgart | FTNT | Restricted Stock Units | Options Exercise | -35.2% | -1,636 | 3,007 | 01 Nov 2026 | Direct | ||
| James G. Stavridis | FTNT | Common Stock | Options Exercise | 2.67% | 459 | 17,648 | 30 Sep 2026 | Direct | ||
| James G. Stavridis | FTNT | Restricted Stock Units | Options Exercise | -25% | -459 | 1,377 | 30 Sep 2026 | Direct | ||
| Kenneth A. Goldman | FTNT | Common Stock | Options Exercise | 1.96% | 459 | 23,928 | 30 Sep 2026 | Direct | ||
| Kenneth A. Goldman | FTNT | Restricted Stock Units | Options Exercise | -25% | -459 | 1,377 | 30 Sep 2026 | Direct | ||
| Jean X. Hu | FTNT | Common Stock | Options Exercise | 1.18% | 459 | 39,508 | 30 Sep 2026 | Direct | ||
| Jean X. Hu | FTNT | Restricted Stock Units | Options Exercise | -25% | -459 | 1,377 | 30 Sep 2026 | Direct | ||
| Kan Derek T. | FTNT | Common Stock | Options Exercise | 459 | 459 | 30 Sep 2026 | Direct | |||
| Kan Derek T. | FTNT | Restricted Stock Units | Options Exercise | -25% | -459 | 1,377 | 30 Sep 2026 | Direct | ||
| Janet Napolitano | FTNT | Common Stock | Options Exercise | 10.7% | 459 | 4,733 | 30 Sep 2026 | Direct | ||
| Janet Napolitano | FTNT | Restricted Stock Units | Options Exercise | -25% | -459 | 1,377 | 30 Sep 2026 | Direct | ||
| Ming Hsieh | FTNT | Common Stock | Options Exercise | 4.78% | 459 | 10,056 | 30 Sep 2026 | Direct | ||
| Ming Hsieh | FTNT | Restricted Stock Units | Options Exercise | -25% | -459 | 1,377 | 30 Sep 2026 | Direct | ||
| Judith Sim | FTNT | Common Stock | Options Exercise | 0.35% | 459 | 130,001 | 30 Sep 2026 | Direct | ||
| Judith Sim | FTNT | Restricted Stock Units | Options Exercise | -25% | -459 | 1,377 | 30 Sep 2026 | Direct | ||
| Christiane Ohlgart | FTNT | Common Stock | Sale | -0.46% | -$8,640 | $180.00 | -48 | 10,345 | 24 Sep 2026 | Direct |
| John Whittle | FTNT | Common Stock | Sale | -2.84% | -$478,378 | $168.74 | -2,835 | 96,987 | 15 Sep 2026 | Direct |
| John Whittle | FTNT | Common Stock | Options Exercise | 2.92% | 2,835 | 99,822 | 15 Sep 2026 | Direct | ||
| John Whittle | FTNT | Stock Option (right to buy) | Options Exercise | -100% | -2,835 | 0 | 15 Sep 2026 | Direct | ||
| John Whittle | FTNT | Common Stock | Sale | -35.7% | -$8,911,430 | $165.44 | -53,865 | 96,987 | 14 Sep 2026 | Direct |
| John Whittle | FTNT | Common Stock | Options Exercise | 55.5% | 53,865 | 150,852 | 14 Sep 2026 | Direct | ||
| John Whittle | FTNT | Stock Option (right to buy) | Options Exercise | -95% | -53,865 | 2,835 | 14 Sep 2026 | Direct | ||
| Kan Derek T. | FTNT | Restricted Stock Units | Award | 1,836 | 1,836 | 12 Aug 2026 | Direct | |||
| Janet Napolitano | FTNT | Restricted Stock Units | Award | 1,836 | 1,836 | 12 Aug 2026 | Direct | |||
| James G. Stavridis | FTNT | Restricted Stock Units | Award | 1,836 | 1,836 | 12 Aug 2026 | Direct | |||
| Judith Sim | FTNT | Restricted Stock Units | Award | 1,836 | 1,836 | 12 Aug 2026 | Direct | |||
| Jean X. Hu | FTNT | Restricted Stock Units | Award | 1,836 | 1,836 | 12 Aug 2026 | Direct | |||
| Ming Hsieh | FTNT | Restricted Stock Units | Award | 1,836 | 1,836 | 12 Aug 2026 | Direct | |||
| Kenneth A. Goldman | FTNT | Restricted Stock Units | Award | 1,836 | 1,836 | 12 Aug 2026 | Direct | |||
| Christiane Ohlgart | FTNT | Common Stock | Sale | -3.59% | -$63,696 | $164.59 | -387 | 10,393 | 04 Aug 2026 | Direct |
| Michael Xie | FTNT | Common Stock | Sale | -0.03% | -$507,574 | $162.63 | -3,121 | 9,918,360 | 03 Aug 2026 | Direct |
| Ken Xie | FTNT | Common Stock | Sale | -0.3% | -$26,266,878 | $162.66 | -161,482 | 52,972,372 | 03 Aug 2026 | Direct |
| Ken Xie | FTNT | Common Stock | Options Exercise | 0.29% | 155,000 | 53,133,854 | 03 Aug 2026 | Direct | ||
| Ken Xie | FTNT | Nonqualified Stock Option (right to buy) | Options Exercise | -33.6% | -155,000 | 306,470 | 03 Aug 2026 | Direct | ||
| John Whittle | FTNT | Common Stock | Tax liability | -2.33% | -2,310 | 96,987 | 01 Aug 2026 | Direct |
* marks a reported price that did not pass the local price check.