SEIFERT THOMAS J
CIK 1473289
Transactions on file
218
Tickers traded
Recent activity
| Filed | Txn date | Issuer | Roles | Code | Shares | Value | % since Filing | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-10-19 | 2026-10-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 500 | $152.1K | +7.1% | open → |
| 2026-10-19 | 2026-10-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 502 | $152.2K | +7.4% | open → |
| 2026-10-19 | 2026-10-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 598 | $180.6K | +7.9% | open → |
| 2026-10-19 | 2026-10-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,643 | $793.9K | +8.4% | open → |
| 2026-10-19 | 2026-10-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 3,756 | $1.12M | +8.8% | open → |
| 2026-10-19 | 2026-10-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 3,401 | $1.01M | +9.2% | open → |
| 2026-10-19 | 2026-10-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,100 | $327.0K | +9.6% | open → |
| 2026-10-19 | 2026-10-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Exer. | 12,500 | $559.0K | +628.4% | open → |
| 2026-10-19 | 2026-10-15 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Tax | 2,944 | $931.2K | +3.0% | open → |
| 2026-09-21 | 2026-09-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 100 | $33.7K | -3.2% | open → |
| 2026-09-21 | 2026-09-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 600 | $201.2K | -2.9% | open → |
| 2026-09-21 | 2026-09-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,868 | $625.0K | -2.6% | open → |
| 2026-09-21 | 2026-09-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,632 | $878.1K | -2.4% | open → |
| 2026-09-21 | 2026-09-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,604 | $533.3K | -2.0% | open → |
| 2026-09-21 | 2026-09-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,196 | $396.6K | -1.8% | open → |
| 2026-09-21 | 2026-09-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 700 | $231.2K | -1.4% | open → |
| 2026-09-21 | 2026-09-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 700 | $230.6K | -1.1% | open → |
| 2026-09-21 | 2026-09-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 300 | $98.4K | -0.7% | open → |
| 2026-09-21 | 2026-09-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 100 | $32.7K | -0.3% | open → |
| 2026-09-21 | 2026-09-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 100 | $32.1K | +1.5% | open → |
| 2026-09-21 | 2026-09-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 100 | $31.9K | +2.1% | open → |
| 2026-09-21 | 2026-09-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | C | 10,000 | $0.00 | — | open → |
| 2026-09-15 | 2026-09-15 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Tax | 2,944 | $963.4K | -0.5% | open → |
| 2026-08-19 | 2026-08-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 100 | $31.5K | +3.5% | open → |
| 2026-08-19 | 2026-08-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 200 | $62.5K | +4.3% | open → |
| 2026-08-19 | 2026-08-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 300 | $92.7K | +5.4% | open → |
| 2026-08-19 | 2026-08-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 3,100 | $955.5K | +5.7% | open → |
| 2026-08-19 | 2026-08-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,456 | $754.7K | +6.0% | open → |
| 2026-08-19 | 2026-08-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,944 | $901.6K | +6.4% | open → |
| 2026-08-19 | 2026-08-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 900 | $274.7K | +6.7% | open → |
| 2026-08-19 | 2026-08-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | C | 10,000 | $0.00 | — | open → |
| 2026-08-18 | 2026-08-15 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Tax | 2,944 | $929.7K | +3.2% | open → |
| 2026-08-06 | 2026-08-04 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,139 | $342.8K | +8.2% | open → |
| 2026-08-06 | 2026-08-04 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 53,861 | $16.17M | +8.5% | open → |
| 2026-08-06 | 2026-08-04 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Exer. | 55,000 | $2.46M | +628.4% | open → |
| 2026-07-17 | 2026-07-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 300 | $84.4K | +15.8% | open → |
| 2026-07-17 | 2026-07-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 800 | $223.9K | +16.4% | open → |
| 2026-07-17 | 2026-07-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,201 | $334.8K | +16.9% | open → |
| 2026-07-17 | 2026-07-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 3,299 | $916.1K | +17.3% | open → |
| 2026-07-17 | 2026-07-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,741 | $481.6K | +17.7% | open → |
| 2026-07-17 | 2026-07-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,559 | $430.0K | +18.1% | open → |
| 2026-07-17 | 2026-07-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 500 | $137.3K | +18.6% | open → |
| 2026-07-17 | 2026-07-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 300 | $81.2K | +20.4% | open → |
| 2026-07-17 | 2026-07-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 100 | $26.8K | +21.6% | open → |
| 2026-07-17 | 2026-07-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 200 | $53.2K | +22.4% | open → |
| 2026-07-17 | 2026-07-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | C | 10,000 | $0.00 | — | open → |
| 2026-07-17 | 2026-07-15 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Tax | 2,943 | $829.2K | +15.6% | open → |
| 2026-06-17 | 2026-06-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 600 | $141.2K | +38.4% | open → |
| 2026-06-17 | 2026-06-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,633 | $616.6K | +39.1% | open → |
| 2026-06-17 | 2026-06-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 3,167 | $739.3K | +39.5% | open → |
| 2026-06-17 | 2026-06-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 600 | $139.2K | +40.4% | open → |
| 2026-06-17 | 2026-06-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 685 | $158.2K | +41.1% | open → |
| 2026-06-17 | 2026-06-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 515 | $118.4K | +41.7% | open → |
| 2026-06-17 | 2026-06-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 900 | $206.0K | +42.3% | open → |
| 2026-06-17 | 2026-06-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 900 | $205.0K | +43.0% | open → |
| 2026-06-17 | 2026-06-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | C | 10,000 | $0.00 | — | open → |
| 2026-06-17 | 2026-06-15 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Tax | 2,944 | $672.6K | +42.6% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 270 | $54.8K | +60.4% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,000 | $404.3K | +61.1% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 3,570 | $718.3K | +61.9% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,432 | $486.9K | +62.7% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 928 | $184.7K | +63.6% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 400 | $79.1K | +64.7% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 300 | $58.5K | +66.9% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 100 | $19.3K | +68.5% | 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 | +63.0% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 400 | $80.4K | +62.1% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,725 | $546.4K | +62.5% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,475 | $294.2K | +63.3% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 600 | $118.8K | +64.5% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,000 | $197.0K | +65.4% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,724 | $338.0K | +66.2% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,076 | $405.0K | +67.0% | 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 | +82.3% | open → |
| 2025-01-06 | 2025-01-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 8,362 | $951.3K | +186.3% | 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 | +188.3% | open → |
| 2025-01-06 | 2025-01-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 3,879 | $444.1K | +184.5% | open → |
| 2025-01-21 | 2025-01-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 5,530 | $649.2K | +177.5% | 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 | +171.2% | 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 | +170.7% | open → |
| 2025-01-21 | 2025-01-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 4,970 | $592.3K | +173.3% | open → |
| 2025-01-21 | 2025-01-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 4,500 | $532.2K | +175.4% | open → |
| 2025-02-03 | 2025-02-03 | WOLF WOLFSPEED, INC. | Director | Grant | 1,642 | $10.0K | +276.5% | open → |
| 2025-02-05 | 2025-02-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 7,059 | $970.9K | +136.8% | open → |
| 2025-02-05 | 2025-02-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,548 | $211.3K | +138.7% | open → |
| 2025-02-05 | 2025-02-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,300 | $176.3K | +140.2% | open → |
| 2025-02-05 | 2025-02-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,366 | $326.8K | +135.8% | open → |
| 2025-02-05 | 2025-02-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,427 | $190.0K | +144.6% | open → |
| 2025-02-05 | 2025-02-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 200 | $26.4K | +147.2% | 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 | +142.5% | 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 | +90.3% | open → |
| 2025-02-19 | 2025-02-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 9,674 | $1.55M | +103.1% | open → |
