SEIFERT THOMAS J
CIK 1473289
Transactions on file
161
Tickers traded
Recent activity
| Filed | Txn date | Issuer | Roles | Code | Shares | Value | % since Filing | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 270 | $54.8K | +16.3% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,000 | $404.3K | +16.8% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 3,570 | $718.3K | +17.4% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,432 | $486.9K | +17.9% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 928 | $184.7K | +18.6% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 400 | $79.1K | +19.4% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 300 | $58.5K | +21.0% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 100 | $19.3K | +22.2% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | C | 10,000 | $0.00 | — | open → |
| 2026-05-19 | 2026-05-15 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Tax | 9,667 | $1.93M | +18.2% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 400 | $80.4K | +17.5% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,725 | $546.4K | +17.8% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,475 | $294.2K | +18.4% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 600 | $118.8K | +19.2% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,000 | $197.0K | +19.9% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,724 | $338.0K | +20.5% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,076 | $405.0K | +21.0% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | C | 10,000 | $0.00 | — | open → |
| 2026-04-17 | 2026-04-15 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Tax | 2,944 | $525.9K | +32.2% | open → |
| 2025-01-06 | 2025-01-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 8,362 | $951.3K | +107.6% | open → |
| 2025-01-06 | 2025-01-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | C | 15,000 | — | — | open → |
| 2025-01-06 | 2025-01-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,759 | $311.7K | +109.0% | open → |
| 2025-01-06 | 2025-01-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 3,879 | $444.1K | +106.2% | open → |
| 2025-01-21 | 2025-01-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 5,530 | $649.2K | +101.1% | open → |
| 2025-01-21 | 2025-01-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | C | 33,864 | — | — | open → |
| 2025-01-21 | 2025-01-21 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 31,136 | $3.74M | +96.6% | open → |
| 2025-01-21 | 2025-01-21 | NET Cloudflare, Inc. | Officer Chief Financial Officer | C | 31,136 | — | — | open → |
| 2025-01-21 | 2025-01-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 18,864 | $2.27M | +96.3% | open → |
| 2025-01-21 | 2025-01-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 4,970 | $592.3K | +98.1% | open → |
| 2025-01-21 | 2025-01-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 4,500 | $532.2K | +99.7% | open → |
| 2025-02-03 | 2025-02-03 | WOLF WOLFSPEED, INC. | Director | Grant | 1,642 | $10.0K | +902.6% | open → |
| 2025-02-05 | 2025-02-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 7,059 | $970.9K | +71.7% | open → |
| 2025-02-05 | 2025-02-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,548 | $211.3K | +73.0% | open → |
| 2025-02-05 | 2025-02-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,300 | $176.3K | +74.1% | open → |
| 2025-02-05 | 2025-02-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,366 | $326.8K | +71.0% | open → |
| 2025-02-05 | 2025-02-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,427 | $190.0K | +77.3% | open → |
| 2025-02-05 | 2025-02-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 200 | $26.4K | +79.2% | open → |
| 2025-02-05 | 2025-02-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | C | 15,000 | — | — | open → |
| 2025-02-05 | 2025-02-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,100 | $147.8K | +75.8% | open → |
| 2025-02-07 | 2025-02-05 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Grant | 69,246 | $0.00 | — | open → |
| 2025-02-19 | 2025-02-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | C | 15,000 | — | — | open → |
| 2025-02-19 | 2025-02-15 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Tax | 14,898 | $2.55M | +38.0% | open → |
| 2025-02-19 | 2025-02-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 9,674 | $1.55M | +47.2% | open → |
| 2025-02-19 | 2025-02-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,970 | $479.6K | +46.2% | open → |
| 2025-02-19 | 2025-02-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 6,041 | $981.2K | +45.4% | open → |
| 2025-02-19 | 2025-02-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 8,450 | $1.38M | +44.5% | open → |
| 2025-02-19 | 2025-02-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 600 | $98.6K | +43.7% | open → |
| 2025-02-19 | 2025-02-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 800 | $132.8K | +42.3% | open → |
| 2025-02-19 | 2025-02-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 100 | $16.7K | +41.4% | open → |
| 2025-03-06 | 2025-03-05 | NET Cloudflare, Inc. | Officer Chief Financial Officer | C | 15,000 | — | — | open → |
| 2025-03-06 | 2025-03-05 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 300 | $41.5K | +70.8% | open → |
| 2025-03-06 | 2025-03-05 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,791 | $389.3K | +69.3% | open → |
| 2025-03-06 | 2025-03-05 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,770 | $389.3K | +68.0% | open → |
| 2025-03-06 | 2025-03-05 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,700 | $240.4K | +67.0% | open → |
| 2025-03-06 | 2025-03-05 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 5,094 | $729.2K | +65.0% | open → |
| 2025-03-06 | 2025-03-05 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,345 | $336.9K | +64.4% | open → |
| 2025-03-21 | 2025-03-20 | NET Cloudflare, Inc. | Officer CHIEF FINANCIAL OFFICER | C | 10,000 | — | — | open → |
| 2025-03-21 | 2025-03-20 | NET Cloudflare, Inc. | Officer CHIEF FINANCIAL OFFICER | Sale | 10,000 | $1.20M | +96.8% | open → |
| 2025-04-28 | 2025-04-25 | NET Cloudflare, Inc. | Officer Chief Financial Officer | C | 10,000 | — | — | open → |
| 2025-04-28 | 2025-04-25 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 10,000 | $1.20M | +96.5% | open → |
| 2025-05-16 | 2025-05-15 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Tax | 20,476 | $3.16M | +52.8% | open → |
| 2025-05-22 | 2025-05-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,416 | $223.2K | +49.8% | open → |
| 2025-05-22 | 2025-05-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 31,175 | $4.89M | +50.5% | open → |
| 2025-05-22 | 2025-05-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 8,965 | $1.40M | +51.2% | open → |
| 2025-05-22 | 2025-05-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | C | 10,000 | — | — | open → |
| 2025-06-23 | 2025-06-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,436 | $259.1K | +30.9% | open → |
| 2025-06-23 | 2025-06-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,400 | $254.5K | +29.9% | open → |
| 2025-06-23 | 2025-06-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 600 | $110.2K | +28.6% | open → |
| 2025-06-23 | 2025-06-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 100 | $18.4K | +28.0% | open → |
| 2025-06-23 | 2025-06-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | C | 10,000 | — | — | open → |
| 2025-06-23 | 2025-06-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,644 | $300.4K | +29.2% | open → |
| 2025-06-23 | 2025-06-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 4,820 | $864.9K | +31.6% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 100 | $19.5K | +21.0% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 395 | $76.6K | +21.7% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,766 | $534.2K | +22.3% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 4,771 | $916.9K | +22.9% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 8,133 | $1.55M | +23.5% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,613 | $497.4K | +24.1% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 300 | $56.6K | +25.1% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 200 | $37.5K | +26.0% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 500 | $93.0K | +26.9% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 700 | $129.6K | +27.6% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,000 | $183.8K | +28.5% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,300 | $237.3K | +29.4% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,500 | $272.7K | +29.9% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,900 | $343.3K | +30.7% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,400 | $430.8K | +31.5% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 4,700 | $839.1K | +32.3% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 8,279 | $1.47M | +33.3% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | C | 10,000 | $0.00 | — | open → |
| 2025-12-23 | 2025-12-22 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 483 | $98.2K | +16.1% | open → |
| 2025-12-23 | 2025-12-22 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 3,328 | $673.5K | +16.7% | open → |
| 2025-12-23 | 2025-12-22 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 4,836 | $974.5K | +17.2% | open → |
| 2025-12-23 | 2025-12-22 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,000 | $200.6K | +17.7% | open → |
| 2025-12-23 | 2025-12-22 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 353 | $70.1K | +18.9% | open → |
| 2025-12-23 | 2025-12-22 | NET Cloudflare, Inc. | Officer Chief Financial Officer | C | 10,000 | $0.00 | — | open → |
| 2025-11-17 | 2025-11-15 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Tax | 20,476 | $4.31M | +12.1% | open → |
| 2025-10-20 | 2025-10-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 300 | $64.0K | +10.7% | open → |
| 2025-10-20 | 2025-10-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 3,846 | $818.2K | +11.0% | open → |
| 2025-10-20 | 2025-10-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,754 | $583.0K | +11.5% | open → |
