Quick Takeaways
- NET - Cloudflare, Inc. has 17 insiders with reported activity on this page.
- Net insider value flow over the last year: -$659,934,114.
- Recent transaction rows are available for direct filing-level review.
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Net insider flow leans to selling over the last 12 months. Net value: -$659,934,114.
$0
Shares: 0
Insiders: 0
$659,934,114
Shares: 3,413,069
Insiders: 9
-$659,934,114
Shares: -3,413,069
Insiders: -9
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 776,215 | $0 | $151,047,240 | -$151,047,240 |
| 3-6 | 0 | 849,616 | $0 | $168,935,349 | -$168,935,349 |
| 6-9 | 0 | 942,974 | $0 | $196,720,042 | -$196,720,042 |
| 9-12 | 0 | 844,264 | $0 | $143,231,483 | -$143,231,483 |
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Matthew Prince | CEO & Board Co-Chair, Director, 10%+ Owner | $1,054,078,475 | -$368,431,535 | -26% | Mixed | 06 Apr 2026 |
| Carl Ledbetter | Director | $212,989,474 | -$30,105,976 | -12% | Filing P/S | 18 Mar 2026 |
| Michelle Zatlyn | President and Board Co-Chair, Director | $140,390,924 | -$168,550,495 | -55% | Mixed | 03 Mar 2026 |
| John Graham-Cumming | Director | $100,980,723 | -$5,927,733 | -5.5% | Filing P/S | 27 Mar 2026 |
| Thomas J. Seifert | Chief Financial Officer | $55,900,654 | -$66,580,321 | -54% | Mixed | 15 Apr 2026 |
| Douglas James Kramer | Chief Legal Officer | $22,013,195 | -$9,430,131 | -30% | Mixed | 15 Feb 2026 |
| Alissa Michelle Starzak | Chief Legal Officer | $13,411,480 | Median | 01 Apr 2026 | ||
| Janel Riley | Chief Accounting Officer | $10,790,290 | -$6,407,251 | -37% | Filing P/S | 05 Mar 2026 |
| Mark Anderson | Director | $9,011,096 | Mixed | 15 Aug 2023 | ||
| Katrin Suder | Director | $7,544,600 | -$909,624 | -11% | Filing P/S | 22 Dec 2025 |
| Scott D. Sandell | Director | $6,767,224 | Mixed | 05 Jun 2025 | ||
| Paul D. Underwood | Chief Accounting Officer | $2,367,426 | Mixed | 15 May 2023 | ||
| Mark J. Hawkins | Director | $2,163,491 | -$795,630 | -27% | Filing P/S | 01 Apr 2026 |
| Karim Lakhani | Director | $798,709 | Mixed | 27 Mar 2025 | ||
| Maria S. Eitel | Director | $525,132 | Filing P/S | 01 Nov 2024 | ||
| Stacey Cunningham | Director | $401,736 | Mixed | 27 Mar 2025 | ||
| Stanley J. Meresman | Director | $207,620 | Mixed | 11 May 2022 |
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Capital World Investors |
13D/G
13F
|
Company |
12%
|
36,368,156
|
$7,169,981,955 | -$986,259,436 | 31 Dec 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
10%
|
32,407,646
|
$6,389,167,409 | — | 31 Dec 2025 | |
| Matthew Prince |
13D/G
3/4/5
|
CEO & Board Co-Chair, Director, 10%+ Owner |
7.7%
|
26,338,507
|
$5,192,636,655 | $0 | 31 Dec 2025 | |
| BlackRock, Inc. |
13F
|
Company |
7.2%
|
22,653,454
|
$4,466,128,440 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
13D/G
|
Company |
5.3%
from 13D/G
|
18,009,245
|
$3,550,523,235 | — | 31 Dec 2025 | |
| BAILLIE GIFFORD & CO |
13D/G
13F
|
Company |
5.3%
|
16,823,947
|
$3,316,841,151 | -$990,637,940 | 31 Dec 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
4.3%
|
13,607,106
|
$2,682,641,472 | — | 31 Dec 2025 | |
| FMR LLC |
13F
|
Company |
4%
|
12,750,499
|
$2,513,760,757 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
2.2%
|
6,988,989
|
$1,377,879,181 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.9%
|
6,018,175
|
$1,184,043,818 | — | 31 Dec 2025 | |
| FIRST TRUST ADVISORS LP |
13F
|
Company |
1.3%
|
4,019,157
|
$792,376,804 | — | 31 Dec 2025 | |
| SANDS CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.2%
|
3,731,287
|
$735,623,232 | — | 31 Dec 2025 | |
| Invesco Ltd. |
13F
|
Company |
1.2%
|
3,700,696
|
$729,592,228 | — | 31 Dec 2025 | |
| NORGES BANK |
13F
|
Company |
1.2%
|
3,643,501
|
$718,316,222 | — | 31 Dec 2025 | |
| FRANKLIN RESOURCES INC |
13F
|
Company |
1.1%
|
3,575,711
|
$704,951,412 | — | 31 Dec 2025 | |
| AMERICAN CENTURY COMPANIES INC |
13F
|
Company |
1%
|
3,174,409
|
$625,834,734 | — | 31 Dec 2025 | |
| Legal & General Group Plc |
13F
|
Company |
0.89%
|
2,824,772
|
$556,903,799 | — | 31 Dec 2025 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
0.78%
|
2,463,842
|
$485,746,450 | — | 31 Dec 2025 | |
| TWO SIGMA ADVISERS, LP |
13F
|
Company |
0.74%
|
2,340,000
|
$461,331,000 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.74%
|
2,334,059
|
$460,159,783 | — | 31 Dec 2025 | |
| VOYA INVESTMENT MANAGEMENT LLC |
13F
|
Company |
0.73%
|
2,294,562
|
$452,125,478 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.72%
|
2,285,370
|
$450,560,669 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.62%
|
1,971,595
|
$388,699,954 | — | 31 Dec 2025 | |
| JENNISON ASSOCIATES LLC |
13F
|
Company |
0.59%
|
1,863,612
|
$367,411,096 | — | 31 Dec 2025 | |
| GILDER GAGNON HOWE & CO LLC |
13F
|
Company |
0.55%
|
1,754,461
|
$345,891,953 | — | 31 Dec 2025 | |
| ROYAL BANK OF CANADA |
13F
|
Company |
0.54%
|
1,713,666
|
$337,849,000 | — | 31 Dec 2025 | |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
|
Company |
0.54%
|
1,707,014
|
$336,537,810 | — | 31 Dec 2025 | |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ |
13F
|
Company |
0.52%
|
1,639,661
|
$323,259,167 | — | 31 Dec 2025 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.5%
|
1,588,591
|
$313,190,716 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.48%
|
1,531,220
|
$301,880,039 | — | 31 Dec 2025 | |
| Squarepoint Ops LLC |
13F
|
Company |
0.48%
|
1,526,578
|
$300,964,853 | — | 31 Dec 2025 | |
| Amundi |
13F
|
Individual |
0.42%
|
1,331,452
|
$262,495,762 | — | 31 Dec 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.4%
|
1,257,598
|
$247,935,446 | — | 31 Dec 2025 | |
| Pictet Asset Management Holding SA |
13F
|
Company |
0.37%
|
1,175,479
|
$231,837,616 | — | 31 Dec 2025 | |
| 1832 Asset Management L.P. |
13F
|
Company |
0.36%
|
1,147,900
|
$226,308,485 | — | 31 Dec 2025 | |
| Sumitomo Mitsui Trust Group, Inc. |
13F
|
Company |
0.36%
|
1,125,602
|
$221,912,434 | — | 31 Dec 2025 | |
| Carl Ledbetter |
3/4/5
|
Director |
0.3%
|
938,073
|
$212,989,474 | -$30,105,976 | 18 Mar 2026 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.33%
|
1,057,265
|
$208,439,730 | — | 31 Dec 2025 | |
| Strategy Capital LLC |
13F
|
Company |
0.33%
|
1,042,099
|
$205,449,818 | — | 31 Dec 2025 | |
| RAYMOND JAMES FINANCIAL INC |
13F
|
Company |
0.33%
|
1,030,550
|
$204,850,173 | — | 31 Dec 2025 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
0.33%
|
1,034,680
|
$203,989,000 | — | 31 Dec 2025 | |
| National Pension Service |
13F
|
Company |
0.3%
|
948,003
|
$186,898,791 | — | 31 Dec 2025 | |
| KBC Group NV |
13F
|
Company |
0.3%
|
936,921
|
$184,713,000 | — | 31 Dec 2025 | |
| Polar Capital Holdings Plc |
13F
|
Company |
0.29%
|
930,366
|
$183,421,657 | — | 31 Dec 2025 | |
| LORD, ABBETT & CO. LLC |
13F
|
Company |
0.29%
|
920,597
|
$181,496,000 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
0.28%
|
882,907
|
$174,065,114 | — | 31 Dec 2025 | |
| Swiss National Bank |
13F
|
Company |
0.27%
|
857,400
|
$169,036,410 | — | 31 Dec 2025 | |
| CITIGROUP INC |
13F
|
Company |
0.26%
|
807,403
|
$159,179,502 | — | 31 Dec 2025 | |
| WELLS FARGO & COMPANY/MN |
13F
|
Company |
0.24%
|
774,000
|
$152,594,060 | — | 31 Dec 2025 | |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. |
13F
|
Company |
0.24%
|
771,636
|
$152,128,000 | — | 31 Dec 2025 |
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Thomas J. Seifert | NET | Class A Common Stock | Sale | -4.32% | $1,979,757 | $197.98 | -10,000 | 221,681 | 17 Apr 2026 | Direct |
| Thomas J. Seifert | NET | Class A Common Stock | Conversion of derivative security | 4.51% | 10,000 | 231,681 | 17 Apr 2026 | Direct | ||
| Thomas J. Seifert | NET | Class B Common Stock | Conversion of derivative security | -52.8% | -10,000 | 8,925 | 17 Apr 2026 | Direct | ||
| Thomas J. Seifert | NET | Class B Common Stock | Options Exercise | 112% | 10,000 | 18,925 | 17 Apr 2026 | Direct | ||
| Thomas J. Seifert | NET | Employee Stock Option (right to buy) | Options Exercise | -16.7% | -10,000 | 50,000 | 17 Apr 2026 | Direct | ||
| Thomas J. Seifert | NET | Class A Common Stock | Tax liability | -1.31% | -2,944 | 221,681 | 15 Apr 2026 | Direct | ||
| Matthew Prince | NET | Class A Common Stock | Sale | -100% | $147,367 | $223.62 | -659 | 0 | 08 Apr 2026 | See footnote |
| Matthew Prince | NET | Class A Common Stock | Sale | -98.7% | $11,048,132 | $213.59 | -51,725 | 659 | 08 Apr 2026 | See footnote |
| Matthew Prince | NET | Class A Common Stock | Conversion of derivative security | 52,384 | 52,384 | 08 Apr 2026 | See footnote | |||
| Matthew Prince | NET | Class B Common Stock | Conversion of derivative security | -1.13% | -52,384 | 4,584,921 | 08 Apr 2026 | See footnote | ||
| Matthew Prince | NET | Class A Common Stock | Sale | -100% | $11,117,736 | $212.24 | -52,384 | 0 | 07 Apr 2026 | See footnote |
| Matthew Prince | NET | Class A Common Stock | Conversion of derivative security | 52,384 | 52,384 | 07 Apr 2026 | See footnote | |||
| Matthew Prince | NET | Class B Common Stock | Conversion of derivative security | -1.12% | -52,384 | 4,637,305 | 07 Apr 2026 | See footnote | ||
| Matthew Prince | NET | Class A Common Stock | Sale | -100% | $11,001,901 | $210.02 | -52,384 | 0 | 06 Apr 2026 | See footnote |
| Matthew Prince | NET | Class A Common Stock | Conversion of derivative security | 52,384 | 52,384 | 06 Apr 2026 | See footnote | |||
| Matthew Prince | NET | Class B Common Stock | Conversion of derivative security | -1.1% | -52,384 | 4,689,689 | 06 Apr 2026 | See footnote | ||
| Mark J. Hawkins | NET | Class A Common Stock | Sale | -1.27% | $27,877 | $209.60 | -133 | 10,322 | 01 Apr 2026 | Direct |
| John Graham-Cumming | NET | Class A Common Stock | Sale | -0.73% | $737,203 | $202.31 | -3,644 | 494,067 | 27 Mar 2026 | Direct |
| John Graham-Cumming | NET | Class A Common Stock | Options Exercise | 0.51% | 2,520 | 497,711 | 27 Mar 2026 | Direct | ||
| John Graham-Cumming | NET | Stock Option (right to buy) | Options Exercise | -20% | -2,520 | 10,080 | 27 Mar 2026 | Direct | ||
| Carl Ledbetter | NET | Class A Common Stock | Sale | -1.57% | $3,405,750 | $227.05 | -15,000 | 938,073 | 18 Mar 2026 | See footnote |
| Matthew Prince | NET | Class A Common Stock | Sale | -100% | $3,102,156 | $227.80 | -13,618 | 0 | 18 Mar 2026 | See footnote |
| Matthew Prince | NET | Class A Common Stock | Sale | -74% | $8,484,709 | $218.87 | -38,766 | 13,618 | 18 Mar 2026 | See footnote |
| Matthew Prince | NET | Class A Common Stock | Conversion of derivative security | 52,384 | 52,384 | 18 Mar 2026 | See footnote | |||
| Matthew Prince | NET | Class B Common Stock | Conversion of derivative security | -1.09% | -52,384 | 4,742,073 | 18 Mar 2026 | See footnote | ||
| Matthew Prince | NET | Class A Common Stock | Sale | -100% | $11,118,544 | $212.25 | -52,384 | 0 | 17 Mar 2026 | See footnote |
| Matthew Prince | NET | Class A Common Stock | Conversion of derivative security | 52,384 | 52,384 | 17 Mar 2026 | See footnote | |||
| Matthew Prince | NET | Class B Common Stock | Conversion of derivative security | -1.08% | -52,384 | 4,794,457 | 17 Mar 2026 | See footnote | ||
| Thomas J. Seifert | NET | Class A Common Stock | Sale | -4.4% | $2,195,442 | $212.30 | -10,341 | 224,625 | 17 Mar 2026 | Direct |
| Thomas J. Seifert | NET | Class A Common Stock | Conversion of derivative security | 4.6% | 10,341 | 234,966 | 17 Mar 2026 | Direct | ||
| Thomas J. Seifert | NET | Class B Common Stock | Conversion of derivative security | -53.7% | -10,341 | 8,925 | 17 Mar 2026 | Direct | ||
| Thomas J. Seifert | NET | Class B Common Stock | Options Exercise | 115.9% | 10,341 | 19,266 | 17 Mar 2026 | Direct | ||
| Thomas J. Seifert | NET | Employee Stock Option (right to buy) | Options Exercise | -14.7% | -10,341 | 60,000 | 17 Mar 2026 | Direct | ||
| Matthew Prince | NET | Class A Common Stock | Sale | -100% | $10,952,448 | $209.08 | -52,384 | 0 | 16 Mar 2026 | See footnote |
| Matthew Prince | NET | Class A Common Stock | Conversion of derivative security | 128.6% | 29,473 | 52,384 | 16 Mar 2026 | See footnote | ||
| Matthew Prince | NET | Class B Common Stock | Conversion of derivative security | -0.6% | -29,473 | 4,846,841 | 16 Mar 2026 | See footnote | ||
| Thomas J. Seifert | NET | Class A Common Stock | Tax liability | -1.29% | -2,943 | 224,625 | 15 Mar 2026 | Direct | ||
| Janel Riley | NET | Class A Common Stock | Sale | -29.1% | $4,433,080 | $190.00 | -23,332 | 56,791 | 05 Mar 2026 | Direct |
| Janel Riley | NET | Class A Common Stock | Options Exercise | 41.1% | 23,332 | 80,123 | 05 Mar 2026 | Direct | ||
| Janel Riley | NET | Performance Stock Option (right to buy) | Options Exercise | -23.3% | -23,332 | 76,668 | 05 Mar 2026 | Direct | ||
| Michelle Zatlyn | NET | Class A Common Stock | Sale | -42.6% | $4,859,047 | $189.50 | -25,641 | 34,514 | 05 Mar 2026 | See footnote |
| Michelle Zatlyn | NET | Class A Common Stock | Conversion of derivative security | 74.3% | 25,641 | 60,155 | 05 Mar 2026 | See footnote | ||
| Michelle Zatlyn | NET | Class B Common Stock | Conversion of derivative security | -100% | -25,641 | 0 | 05 Mar 2026 | Direct | ||
| Michelle Zatlyn | NET | Class B Common Stock | Options Exercise | 25,641 | 25,641 | 05 Mar 2026 | Direct | |||
| Michelle Zatlyn | NET | Employee Stock Option (right to buy) | Options Exercise | -1.66% | -25,641 | 1,517,941 | 05 Mar 2026 | Direct | ||
| Michelle Zatlyn | NET | Class A Common Stock | Sale | -42.6% | $4,605,773 | $179.63 | -25,641 | 34,514 | 04 Mar 2026 | See footnote |
| Michelle Zatlyn | NET | Class A Common Stock | Conversion of derivative security | 74.3% | 25,641 | 60,155 | 04 Mar 2026 | See footnote | ||
| Michelle Zatlyn | NET | Class B Common Stock | Conversion of derivative security | -100% | -25,641 | 0 | 04 Mar 2026 | Direct | ||
| Michelle Zatlyn | NET | Class B Common Stock | Options Exercise | 25,641 | 25,641 | 04 Mar 2026 | Direct | |||
| Michelle Zatlyn | NET | Employee Stock Option (right to buy) | Options Exercise | -1.63% | -25,641 | 1,543,582 | 04 Mar 2026 | Direct |