🕵️ Cloudflare, Inc. ($NET)
SEC insider & ownership activity, last 12 months · CIK 1477333 · every row links its SEC filing
Over the last 12 months insiders sold $735.7M with no open-market buying against it. Prince Matthew sold $373.7M through a 10b5-1 trading plan in 373 lots (Oct–Aug). 1 planned sale is pending, the largest $1.0M (Alissa M. Starzak). No red-flag 8-Ks in the window.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 10 sellers, $735.7M (891 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Prince Matthew | 0 | – | 373 | $373.7M | Aug 5, 2026 |
| Zatlyn Michelle | 0 | – | 226 | $245.5M | Sep 8, 2026 |
| Thomas Seifert | 0 | – | 101 | $54.8M | Aug 17, 2026 |
| Ledbetter Carl | 0 | – | 38 | $34.0M | Sep 14, 2026 |
| Riley Janel | 0 | – | 23 | $8.8M | Aug 18, 2026 |
| Graham-Cumming John | 0 | – | 89 | $6.4M | Aug 10, 2026 |
| Douglas Kramer | 0 | – | 14 | $5.6M | Feb 2, 2026 |
| Alissa M. Starzak | 0 | – | 13 | $5.3M | Aug 18, 2026 |
| Suder Katrin | 0 | – | 3 | $879K | Jun 8, 2026 |
| Mark J. Hawkins | 0 | – | 11 | $725K | Aug 3, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Matthew Prince | 7.7% | 13G | Feb 13, 2026 | filing ↗ | |
| Capital World Investors | 7.3% | 13G | May 14, 2026 | filing ↗ | |
| Morgan Stanley | 5.3% | 13G | Feb 12, 2026 | filing ↗ | |
| Vanguard Capital Management | 5.2% | 13G | Apr 29, 2026 | filing ↗ | |
| Vanguard Portfolio Management | 5.1% | 13G | Apr 29, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Alissa M. Starzak | $773K | Aug 18, 2026 | filing ↗ |
| Alissa M. Starzak | $1.0M | Aug 17, 2026 | filing ↗ |
| Thomas Seifert | $3.2M | Aug 17, 2026 | filing ↗ |
| Thomas Seifert | $15.6M | Aug 4, 2026 | filing ↗ |
| Mark Hawkins | $37K | Aug 3, 2026 | filing ↗ |
| Thomas Seifert | $2.7M | Jul 17, 2026 | filing ↗ |
| Michelle Zatlyn | $80.1M | Jul 13, 2026 | filing ↗ |
| Ledbetter Carl | $4.0M | Jul 7, 2026 | filing ↗ |
| John Graham-Cumming | $1.2M | Jul 6, 2026 | filing ↗ |
| Matthew Prince | $116.1M | Jul 1, 2026 | filing ↗ |
| Mark Hawkins | $33K | Jul 1, 2026 | filing ↗ |
| Matthew Prince | $34.3M | Jun 22, 2026 | filing ↗ |
| Thomas Seifert | $2.3M | Jun 17, 2026 | filing ↗ |
| Katrin Susanne Suder | $74K | Jun 8, 2026 | filing ↗ |
| Mark Hawkins | $33K | Jun 1, 2026 | filing ↗ |
| Alissa M. Starzak | $3.5M | May 28, 2026 | filing ↗ |
| Douglas Kramer | $3.9M | May 26, 2026 | filing ↗ |
| Michelle Zatlyn | $35.3M | May 22, 2026 | filing ↗ |
| Douglas Kramer | $1.2M | May 18, 2026 | filing ↗ |
| Thomas Seifert | $2.0M | May 18, 2026 | filing ↗ |
| Kramer Douglas James | $1.2M | May 11, 2026 | filing ↗ |
| Mark Hawkins | $28K | May 1, 2026 | filing ↗ |
| Ledbetter Carl | $9.7M | Apr 28, 2026 | filing ↗ |
| Thomas Seifert | $2.0M | Apr 17, 2026 | filing ↗ |
| Mark Hawkins | $28K | Apr 1, 2026 | filing ↗ |
| John Graham-Cumming | $1.8M | Mar 27, 2026 | filing ↗ |
| Thomas Seifert | $2.1M | Mar 17, 2026 | filing ↗ |
| Matthew Prince | $97.7M | Mar 16, 2026 | filing ↗ |
| Mark Hawkins | $22K | Mar 2, 2026 | filing ↗ |
| Thomas Seifert | $8.0M | Feb 20, 2026 | filing ↗ |
| Michelle Zatlyn | $46.3M | Feb 19, 2026 | filing ↗ |
| Douglas Kramer | $529K | Feb 2, 2026 | filing ↗ |
| Mark Hawkins | $24K | Feb 2, 2026 | filing ↗ |
| Ledbetter Carl | $12.7M | Jan 27, 2026 | filing ↗ |
| Thomas Seifert | $1.8M | Jan 20, 2026 | filing ↗ |
| Douglas Kramer | $1.8M | Jan 2, 2026 | filing ↗ |
| Mark Hawkins | $27K | Jan 2, 2026 | filing ↗ |
| Thomas Seifert | $2.0M | Dec 22, 2025 | filing ↗ |
| Katrin Susanne Suder | $406K | Dec 22, 2025 | filing ↗ |
| John Graham-Cumming | $2.0M | Dec 15, 2025 | filing ↗ |
| Matthew Prince | $96.3M | Dec 3, 2025 | filing ↗ |
| Douglas Kramer | $591K | Dec 1, 2025 | filing ↗ |
| Mark Hawkins | $26K | Dec 1, 2025 | filing ↗ |
| Michelle Zatlyn | $46.0M | Nov 20, 2025 | filing ↗ |
| Thomas Seifert | $8.2M | Nov 20, 2025 | filing ↗ |
| Katrin Susanne Suder | $399K | Nov 19, 2025 | filing ↗ |
| Mark Hawkins | $254K | Nov 3, 2025 | filing ↗ |
| Douglas Kramer | $767K | Nov 3, 2025 | filing ↗ |
| Ledbetter Carl | $8.7M | Oct 20, 2025 | filing ↗ |
| Thomas Seifert | $2.1M | Oct 20, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Material agreement (1.01) | Aug 10, 2026 | filing ↗ |
| New financial obligation (2.03) | Aug 10, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Aug 10, 2026 | filing ↗ |
| Other events (8.01) | Aug 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 10, 2026 | filing ↗ |
| Earnings (2.02) | Aug 6, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Aug 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 6, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jun 30, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 30, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jun 30, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 30, 2026 | filing ↗ |
| Earnings (2.02) | May 7, 2026 | filing ↗ |
| Exit or disposal costs (2.05) | May 7, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Earnings (2.02) | May 7, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Earnings (2.02) | Feb 10, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Feb 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 10, 2026 | filing ↗ |
| Officer/director changes (5.02) | Feb 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 6, 2026 | filing ↗ |
| Earnings (2.02) | Oct 30, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Oct 30, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 30, 2025 | filing ↗ |