Thomas J Seifert
Chief Financial Officer · 14 filings · Latest: Sep 17, 2026
Cloudflare, Inc.
| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|
NET | Thomas J Seifert | Chief Financial Officer | Sep 17, 2026 | Sale | $332.46 | 10,000 | $3.3M | 107,902 | |
NET | THOMAS SEIFERT | — | Sep 17, 2026 | Proposed Sale | $324.65 | 10,000 | $3.2M | — | |
NET | Thomas J Seifert | Chief Financial Officer | Aug 17, 2026 | Sale | $307.32 | 10,000 | $3.1M | 110,846 | |
NET | THOMAS SEIFERT | — | Aug 17, 2026 | Proposed Sale | $315.78 | 10,000 | $3.2M | — | |
NET | Thomas J Seifert | Chief Financial Officer | Aug 4, 2026 | Sale | $300.30 | 55,000 | $16.5M | 113,790 | |
NET | Thomas J Seifert | Chief Financial Officer | Aug 4, 2026 | Option Exercise | $44.72 | 55,000 | $2.5M | 168,790 | |
NET | THOMAS SEIFERT | — | Aug 4, 2026 | Proposed Sale | $282.74 | 55,000 | $15.6M | — | |
NET | Thomas J Seifert | Chief Financial Officer | Jul 17, 2026 | Sale | $276.92 | 10,000 | $2.8M | 113,790 | |
NET | THOMAS SEIFERT | — | Jul 17, 2026 | Proposed Sale | $272.46 | 10,000 | $2.7M | — | |
NET | Thomas J Seifert | Chief Financial Officer | Jun 17, 2026 | Sale | $232.39 | 10,000 | $2.3M | 116,733 | |
NET | THOMAS SEIFERT | — | Jun 17, 2026 | Proposed Sale | $230.97 | 10,000 | $2.3M | — | |
NET | Thomas J Seifert | Chief Financial Officer | May 18, 2026 | Sale | $200.61 | 10,000 | $2.0M | 212,014 | |
NET | THOMAS SEIFERT | — | May 18, 2026 | Proposed Sale | $197.56 | 10,000 | $2.0M | — | |
NET | Thomas J Seifert | Chief Financial Officer | Apr 17, 2026 | Sale | $197.98 | 10,000 | $2.0M | 221,681 | |
NET | THOMAS SEIFERT | — | Apr 17, 2026 | Proposed Sale | $197.38 | 10,000 | $2.0M | — | |
NET | Thomas J Seifert | Chief Financial Officer | Mar 17, 2026 | Sale | $212.30 | 10,341 | $2.2M | 224,625 | |
NET | THOMAS SEIFERT | — | Mar 17, 2026 | Proposed Sale | $207.33 | 10,341 | $2.1M | — | |
NET | Thomas J Seifert | Chief Financial Officer | Feb 20, 2026 | Sale | $185.04 | 41,557 | $7.7M | 85,452 | |
NET | THOMAS SEIFERT | — | Feb 20, 2026 | Proposed Sale | $192.64 | 41,557 | $8.0M | — | |
NET | Thomas J Seifert | Chief Financial Officer | Jan 20, 2026 | Sale | $178.37 | 10,000 | $1.8M | 137,486 |
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