Comparable stake leader
Matthew Prince
SEC ownership of Cloudflare, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001477333.
Disclosed value leader
Capital World Investors
Comparable rows
50/50
Latest evidence
10 Aug 2026
- Public ticker
- NET on NYSE
- Parsed ownership sources
-
13D/G, 3/4/5, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Matthew Prince
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Matthew Prince
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
10 Aug 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001477333
- Issuer location
- San Francisco, 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 Cloudflare, 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
Matthew Prince
Disclosed value leader
Capital World Investors
Comparable rows
50/50
Latest evidence
10 Aug 2026
13D/G
3/4/5
13F
Lead comparable stake: 7.7%
13D/G row: Matthew Prince
Showing 1-8 of 50 holder rows.
Quick read
Matthew Prince leads the comparable SEC ownership view at 7.7%.
50 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 Matthew Prince's linked filing trail.
Comparable ownership
Top 5
Matthew Prince
7.7%
Capital World Investors
7.3%
MORGAN STANLEY
5.3%
VANGUARD CAPITAL MANAGEMENT LLC
5.2%
VANGUARD PORTFOLIO MANAGEMENT LLC
5.1%
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 |
|---|---|---|---|---|---|
| Matthew Prince |
13D/G
3/4/5
CEO & Board Co-Chair, Director, 10%+ Owner
|
7.7%
|
$5,192,636,655
26,338,507 shares
|
$0 | 31 Dec 2025 |
| Capital World Investors |
13F
13D/G
Company
|
7.3%
from 13D/G
|
$5,966,507,037
24,325,692 shares
|
— | 30 Jun 2026 |
| MORGAN STANLEY |
13F
13D/G
Company
|
5.3%
from 13D/G
|
$3,742,563,026
15,258,327 shares
|
— | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
13D/G
Company · Vanguard Capital Management
|
5.2%
from 13D/G
|
$3,539,479,927
14,430,365 shares
|
— | 30 Jun 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
13D/G
Company · Vanguard Portfolio Management
|
5.1%
from 13D/G
|
$4,125,542,394
16,819,726 shares
|
— | 30 Jun 2026 |
| BAILLIE GIFFORD & CO |
13D/G
13F
Company
|
4.6%
|
$3,580,743,136
14,598,594 shares
|
-$545,834,584 | 30 Jun 2026 |
| Carl Ledbetter |
3/4/5
Director
|
0.28%
|
$255,631,651
903,514 shares
|
-$35,400,033 | 06 Aug 2026 |
| John Graham-Cumming |
3/4/5
Director
|
0.16%
|
$154,362,117
494,909 shares
|
-$8,469,864 | 10 Aug 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: -$752,199,039.
Buys
$0
Insiders: 0
Sells
$752,199,039
Insiders: 10
Net
-$752,199,039
Shares: -3,448,260
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 3,448,260
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 943,281 | $0 | $243,901,948 | -$243,901,948 |
| 3-6 | 0 | 883,880 | $0 | $179,479,598 | -$179,479,598 |
| 6-9 | 0 | 723,446 | $0 | $139,930,970 | -$139,930,970 |
| 9-12 | 0 | 897,653 | $0 | $188,886,524 | -$188,886,524 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-17 of 17 reporting-owner rows connected to Cloudflare, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
17
Largest Forms 3/4/5 holder
Matthew Prince
Net 12M change
-$752,199,038
Latest report
19 Aug 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Matthew Prince | CEO & Board Co-Chair, Director, 10%+ Owner | $774,432,385 | -$408,527,677 | -35% | Mixed | 15 Aug 2026 |
| Carl Ledbetter | Director | $255,631,651 | -$35,400,033 | -12% | Mixed | 06 Aug 2026 |
| Michelle Zatlyn | President and Board Co-Chair, Director | $191,999,528 | -$222,883,131 | -54% | Mixed | 19 Aug 2026 |
| John Graham-Cumming | Director | $154,362,117 | -$8,469,864 | -5.2% | Filing P/S | 10 Aug 2026 |
| Thomas J. Seifert | Chief Financial Officer | $73,115,213 | -$54,817,851 | -43% | Mixed | 17 Aug 2026 |
| Alissa Michelle Starzak | Chief Legal Officer | $34,149,143 | -$5,317,896 | -13% | Filing P/S | 17 Aug 2026 |
| Douglas James Kramer | Chief Legal Officer | $22,013,195 | -$6,200,153 | -22% | Mixed | 15 Feb 2026 |
| Janel Riley | Chief Accounting Officer | $12,834,699 | -$8,776,674 | -41% | Filing P/S | 17 Aug 2026 |
| Scott D. Sandell | Director | $9,982,316 | Mixed | 30 Jun 2026 | ||
| Mark Anderson | Director | $9,011,096 | Mixed | 15 Aug 2023 | ||
| Katrin Suder | Director | $7,897,044 | -$879,153 | -10% | Mixed | 30 Jun 2026 |
| Mark J. Hawkins | Director | $2,952,931 | -$926,606 | -24% | Filing P/S | 03 Aug 2026 |
| Paul D. Underwood | Chief Accounting Officer | $2,367,426 | Mixed | 15 May 2023 | ||
| Karim Lakhani | Director | $1,557,454 | Mixed | 30 Jun 2026 | ||
| Stacey Cunningham | Director | $869,723 | Mixed | 30 Jun 2026 | ||
| Maria S. Eitel | Director | $525,132 | Filing P/S | 01 Nov 2024 | ||
| Stanley J. Meresman | Director | $207,620 | Mixed | 11 May 2022 |
Recent insider transactions for Cloudflare, 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Michelle Zatlyn | NET | Class A Common Stock | Sale | -32.1% | $9,156,123 | $277.43 | -33,003 | 69,775 | 21 Aug 2026 | See footnote |
| Michelle Zatlyn | NET | Class A Common Stock | Conversion of derivative security | 47.3% | 33,003 | 102,778 | 21 Aug 2026 | See footnote | ||
| Michelle Zatlyn | NET | Class B Common Stock | Conversion of derivative security | -100% | -33,003 | 0 | 21 Aug 2026 | Direct | ||
| Michelle Zatlyn | NET | Class B Common Stock | Options Exercise | 33,003 | 33,003 | 21 Aug 2026 | Direct | |||
| Michelle Zatlyn | NET | Employee Stock Option (right to buy) | Options Exercise | -2.94% | -33,003 | 1,089,099 | 21 Aug 2026 | Direct | ||
| Michelle Zatlyn | NET | Class A Common Stock | Sale | -32.1% | $9,407,947 | $285.06 | -33,003 | 69,775 | 20 Aug 2026 | See footnote |
| Michelle Zatlyn | NET | Class A Common Stock | Conversion of derivative security | 47.3% | 33,003 | 102,778 | 20 Aug 2026 | See footnote | ||
| Michelle Zatlyn | NET | Class B Common Stock | Conversion of derivative security | -100% | -33,003 | 0 | 20 Aug 2026 | Direct | ||
| Michelle Zatlyn | NET | Class B Common Stock | Options Exercise | 33,003 | 33,003 | 20 Aug 2026 | Direct | |||
| Michelle Zatlyn | NET | Employee Stock Option (right to buy) | Options Exercise | -2.86% | -33,003 | 1,122,102 | 20 Aug 2026 | Direct | ||
| Michelle Zatlyn | NET | Class A Common Stock | Sale | -32.1% | $9,723,613 | $294.63 | -33,003 | 69,775 | 19 Aug 2026 | See footnote |
| Michelle Zatlyn | NET | Class A Common Stock | Conversion of derivative security | 47.3% | 33,003 | 102,778 | 19 Aug 2026 | See footnote | ||
| Michelle Zatlyn | NET | Class B Common Stock | Conversion of derivative security | -100% | -33,003 | 0 | 19 Aug 2026 | Direct | ||
| Michelle Zatlyn | NET | Class B Common Stock | Options Exercise | 33,003 | 33,003 | 19 Aug 2026 | Direct | |||
| Michelle Zatlyn | NET | Employee Stock Option (right to buy) | Options Exercise | -2.78% | -33,003 | 1,155,105 | 19 Aug 2026 | Direct | ||
| Alissa Michelle Starzak | NET | Class A Common Stock | Sale | -2.21% | $773,278 | $304.68 | -2,538 | 112,082 | 18 Aug 2026 | Direct |
| Janel Riley | NET | Class A Common Stock | Sale | -7.73% | $1,062,624 | $305.26 | -3,481 | 41,547 | 18 Aug 2026 | Direct |
| Alissa Michelle Starzak | NET | Class A Common Stock | Sale | -2.83% | $1,033,736 | $310.15 | -3,333 | 114,620 | 17 Aug 2026 | Direct |
| Alissa Michelle Starzak | NET | Class A Common Stock | Options Exercise | 2.91% | 3,333 | 117,953 | 17 Aug 2026 | Direct | ||
| Alissa Michelle Starzak | NET | Performance Stock Option (right to buy) | Options Exercise | -3.7% | -3,333 | 86,666 | 17 Aug 2026 | Direct | ||
| Janel Riley | NET | Class A Common Stock | Sale | -3.57% | $517,370 | $310.36 | -1,667 | 45,028 | 17 Aug 2026 | Direct |
| Janel Riley | NET | Class A Common Stock | Options Exercise | 3.7% | 1,667 | 46,695 | 17 Aug 2026 | Direct | ||
| Janel Riley | NET | Performance Stock Option (right to buy) | Options Exercise | -2.27% | -1,667 | 71,668 | 17 Aug 2026 | Direct | ||
| Thomas J. Seifert | NET | Class A Common Stock | Sale | -8.27% | $3,073,176 | $307.32 | -10,000 | 110,846 | 17 Aug 2026 | Direct |
| Thomas J. Seifert | NET | Class A Common Stock | Conversion of derivative security | 9.02% | 10,000 | 120,846 | 17 Aug 2026 | Direct | ||
| Thomas J. Seifert | NET | Class B Common Stock | Conversion of derivative security | -52.8% | -10,000 | 8,925 | 17 Aug 2026 | Direct | ||
| Thomas J. Seifert | NET | Class B Common Stock | Options Exercise | 112% | 10,000 | 18,925 | 17 Aug 2026 | Direct | ||
| Thomas J. Seifert | NET | Employee Stock Option (right to buy) | Options Exercise | -50% | -10,000 | 10,000 | 17 Aug 2026 | Direct | ||
| Alissa Michelle Starzak | NET | Class A Common Stock | Tax liability | -3.19% | -3,775 | 114,620 | 15 Aug 2026 | Direct | ||
| Thomas J. Seifert | NET | Class A Common Stock | Tax liability | -2.59% | -2,944 | 110,846 | 15 Aug 2026 | Direct | ||
| Janel Riley | NET | Class A Common Stock | Tax liability | -8.41% | -4,135 | 45,028 | 15 Aug 2026 | Direct | ||
| Matthew Prince | NET | Class A Common Stock | Tax liability | -5.95% | -19,937 | 315,300 | 15 Aug 2026 | Direct | ||
| Michelle Zatlyn | NET | Class A Common Stock | Tax liability | -6.84% | -23,157 | 315,300 | 15 Aug 2026 | Direct | ||
| John Graham-Cumming | NET | Class A Common Stock | Sale | -0.51% | $765,997 | $303.97 | -2,520 | 494,909 | 10 Aug 2026 | Direct |
| John Graham-Cumming | NET | Class A Common Stock | Options Exercise | 0.51% | 2,520 | 497,429 | 10 Aug 2026 | Direct | ||
| John Graham-Cumming | NET | Stock Option (right to buy) | Options Exercise | -100% | -2,520 | 0 | 10 Aug 2026 | Direct | ||
| Carl Ledbetter | NET | Class A Common Stock | Sale | -0.56% | $1,409,910 | $281.98 | -5,000 | 883,073 | 06 Aug 2026 | See footnote |
| Matthew Prince | NET | Class A Common Stock | Sale | -100% | $9,958,254 | $296.10 | -33,631 | 0 | 05 Aug 2026 | See footnote |
| Matthew Prince | NET | Class A Common Stock | Sale | -100% | $5,552,533 | $296.10 | -18,752 | 0 | 05 Aug 2026 | See footnote |
| Matthew Prince | NET | Class A Common Stock | Conversion of derivative security | 52,383 | 33,631 | 05 Aug 2026 | See footnote | |||
| Matthew Prince | NET | Class B Common Stock | Conversion of derivative security | -1.87% | -52,383 | 2,750,039 | 05 Aug 2026 | See footnote | ||
| Thomas J. Seifert | NET | Class A Common Stock | Sale | -32.6% | $16,516,285 | $300.30 | -55,000 | 113,790 | 04 Aug 2026 | Direct |
| Thomas J. Seifert | NET | Class A Common Stock | Options Exercise | 48.3% | 55,000 | 168,790 | 04 Aug 2026 | Direct | ||
| Thomas J. Seifert | NET | Performance Stock Option (right to buy) | Options Exercise | -9.91% | -55,000 | 500,000 | 04 Aug 2026 | Direct | ||
| Matthew Prince | NET | Class A Common Stock | Sale | -100% | $9,634,189 | $298.44 | -32,282 | 0 | 04 Aug 2026 | See footnote |
| Matthew Prince | NET | Class A Common Stock | Sale | -100% | $5,967,817 | $296.89 | -20,101 | 0 | 04 Aug 2026 | See footnote |
| Matthew Prince | NET | Class A Common Stock | Conversion of derivative security | 52,383 | 33,631 | 04 Aug 2026 | See footnote | |||
| Matthew Prince | NET | Class B Common Stock | Conversion of derivative security | -1.85% | -52,383 | 2,783,670 | 04 Aug 2026 | See footnote | ||
| Matthew Prince | NET | Class A Common Stock | Sale | -100% | $14,846,244 | $283.42 | -52,383 | 0 | 03 Aug 2026 | See footnote |
| Matthew Prince | NET | Class A Common Stock | Conversion of derivative security | 52,383 | 33,631 | 03 Aug 2026 | See footnote |
* marks a reported price that did not pass the local price check.