SEIFERT THOMAS J (CIK 1473289) reported 190 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-06-17). Recent activity: Sell NET (2,944 shares), Buy NET (10,000 shares), Sell NET (900 shares), Sell NET (900 shares), Sell NET (515 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-17 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 2,944 | $672,645 |
| 2026-06-17 | Cloudflare, Inc. (NET) | Chief Financial Officer | Buy | 10,000 | $0 |
| 2026-06-17 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 900 | $204,963 |
| 2026-06-17 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 900 | $206,021 |
| 2026-06-17 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 515 | $118,426 |
| 2026-06-17 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 685 | $158,165 |
| 2026-06-17 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 600 | $139,201 |
| 2026-06-17 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 3,167 | $739,309 |
| 2026-06-17 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 2,633 | $616,600 |
| 2026-06-17 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 600 | $141,203 |
| 2026-05-19 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 100 | $19,328 |
| 2026-05-19 | Cloudflare, Inc. (NET) | Chief Financial Officer | Buy | 10,000 | $0 |
| 2026-05-19 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 9,667 | $1.9M |
| 2026-05-19 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 300 | $58,541 |
| 2026-05-19 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 400 | $79,123 |
| 2026-05-19 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 928 | $184,722 |
| 2026-05-19 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 2,432 | $486,895 |
| 2026-05-19 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 3,570 | $718,311 |
| 2026-05-19 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 2,000 | $404,333 |
| 2026-05-19 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 270 | $54,814 |
| 2026-04-17 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 2,944 | $525,946 |
| 2026-04-17 | Cloudflare, Inc. (NET) | Chief Financial Officer | Buy | 10,000 | $0 |
| 2026-04-17 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 2,076 | $405,001 |
| 2026-04-17 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 1,724 | $337,969 |
| 2026-04-17 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 1,000 | $196,967 |
Source: SEC Form 4 filings · as of 2026-06-17