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Cloudflare, Inc. Insider Trading Activity
Every SEC Form 4 insider transaction reported for Cloudflare, Inc. (NET), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud Research Team · SEC Form 4 & insider trading data analysts
Last updated:
Quick Answer
Are NET insiders buying or selling?
Cloudflare, Inc. insiders reported 1 open-market buys ($941.6K) and 552 sells ($3.4B) across 553 Form 4 filings — a net selling position of $3.4B.
Source: SEC EDGAR Form 4
Key Statistics (as of Aug 21, 2026)
Total Form 4 filings
553
SEC EDGAR
Insider filers
19
Insider buys (1)
$941.6K
Insider sells (552)
$3.4B
Insider sentiment
Net sellingNet insider flow of $3.4B in net selling.
Recent NET insider transactions
| Date | Insider | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 21, 2026 | Michelle Zatlyn | President and Board Co-Chair | Sale | 99.0K | $285.71 | $28.3M |
| Aug 19, 2026 | Alissa Michelle Starzak | Chief Legal Officer | Sale | 5.9K | $307.79 | $1.8M |
| Aug 19, 2026 | Janel Riley | Chief Accounting Officer | Sale | 5.1K | $306.91 | $1.6M |
| Aug 19, 2026 | Thomas J Seifert | Chief Financial Officer | Sale | 10.0K | $307.32 | $3.1M |
| Aug 11, 2026 | John Graham-Cumming | Director | Sale | 2.5K | $303.97 | $766.0K |
| Aug 6, 2026 | Thomas J Seifert | Chief Financial Officer | Sale | 55.0K | $300.30 | $16.5M |
| Aug 6, 2026 | Carl Ledbetter | Director | Sale | 5.0K | $281.98 | $1.4M |
| Aug 5, 2026 | Matthew Prince | CEO & Board Co-Chair | Sale | 33.6K | $296.10 | $10.0M |
| Aug 5, 2026 | Matthew Prince | CEO & Board Co-Chair | Sale | 51.0K | $297.58 | $15.2M |
| Aug 5, 2026 | Matthew Prince | CEO & Board Co-Chair | Sale | 20.1K | $296.89 | $6.0M |
| Aug 5, 2026 | Matthew Prince | CEO & Board Co-Chair | Sale | 52.4K | $283.42 | $14.8M |
| Aug 4, 2026 | Mark J Hawkins | Director | Sale | 133 | $277.74 | $36.9K |
| Jul 17, 2026 | Thomas J Seifert | Chief Financial Officer | Sale | 10.0K | $276.92 | $2.8M |
| Jul 15, 2026 | Michelle Zatlyn | President and Board Co-Chair | Sale | 99.1K | $276.78 | $27.4M |
| Jul 8, 2026 | Carl Ledbetter | Director | Sale | 5.0K | $268.11 | $1.3M |
| Jul 7, 2026 | John Graham-Cumming | Director | Sale | 2.5K | $247.28 | $623.2K |
| Jul 6, 2026 | Matthew Prince | CEO & Board Co-Chair | Sale | 86.0K | $245.31 | $21.1M |
| Jul 6, 2026 | Matthew Prince | CEO & Board Co-Chair | Sale | 71.2K | $247.28 | $17.6M |
| Jul 2, 2026 | Mark J Hawkins | Director | Sale | 133 | $249.00 | $33.1K |
| Jun 24, 2026 | Matthew Prince | CEO & Board Co-Chair | Sale | 52.4K | $224.30 | $11.7M |
| Jun 24, 2026 | Matthew Prince | CEO & Board Co-Chair | Sale | 104.8K | $221.65 | $23.2M |
| Jun 18, 2026 | Michelle Zatlyn | President and Board Co-Chair | Sale | 76.9K | $228.25 | $17.6M |
| Jun 17, 2026 | Thomas J Seifert | Chief Financial Officer | Sale | 10.0K | $232.39 | $2.3M |
| Jun 16, 2026 | John Graham-Cumming | Director | Sale | 2.5K | $235.95 | $594.6K |
| Jun 8, 2026 | Katrin Suder | Director | Sale | 293 | $252.92 | $74.1K |
Showing the 25 most recent of 553 Form 4 filings for Cloudflare, Inc..
Most active NET insiders
- Thomas J Seifert130 filings
- Matthew Prince91 filings
- Michelle Zatlyn82 filings
- Carl Ledbetter79 filings
- Douglas James Kramer70 filings
Ask anything about NET insider activity
Use Trabud's AI agent to query Cloudflare, Inc.'s Form 4 history in plain English — "Show me NET CEO purchases this year" or compare it against any other ticker.
Open the AI agentNET insider trading FAQ
Are Cloudflare, Inc. insiders buying or selling?
Across 553 SEC Form 4 filings, Cloudflare, Inc. (NET) insiders reported 1 open-market purchases totaling $941.6K and 552 sales totaling $3.4B. That is a net selling position of $3.4B.
How many insiders trade NET stock?
19 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for Cloudflare, Inc.. The most recent filing was accepted on Aug 21, 2026.
Where does Trabud get NET insider trading data?
All NET insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.
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