SEIFERT THOMAS J
CIK 1473289
Transactions on file
183
Tickers traded
Recent activity
| Filed | Txn date | Issuer | Roles | Code | Shares | Value | % since Filing | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-07-17 | 2026-07-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 300 | $84.4K | -6.8% | open → |
| 2026-07-17 | 2026-07-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 800 | $223.9K | -6.3% | open → |
| 2026-07-17 | 2026-07-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,201 | $334.8K | -6.0% | open → |
| 2026-07-17 | 2026-07-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 3,299 | $916.1K | -5.6% | open → |
| 2026-07-17 | 2026-07-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,741 | $481.6K | -5.2% | open → |
| 2026-07-17 | 2026-07-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,559 | $430.0K | -4.9% | open → |
| 2026-07-17 | 2026-07-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 500 | $137.3K | -4.5% | open → |
| 2026-07-17 | 2026-07-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 300 | $81.2K | -3.1% | open → |
| 2026-07-17 | 2026-07-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 100 | $26.8K | -2.1% | open → |
| 2026-07-17 | 2026-07-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 200 | $53.2K | -1.5% | 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 | -7.0% | open → |
| 2026-06-17 | 2026-06-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 600 | $141.2K | +11.4% | open → |
| 2026-06-17 | 2026-06-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,633 | $616.6K | +11.9% | open → |
| 2026-06-17 | 2026-06-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 3,167 | $739.3K | +12.3% | open → |
| 2026-06-17 | 2026-06-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 600 | $139.2K | +13.0% | open → |
| 2026-06-17 | 2026-06-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 685 | $158.2K | +13.5% | open → |
| 2026-06-17 | 2026-06-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 515 | $118.4K | +14.0% | open → |
| 2026-06-17 | 2026-06-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 900 | $206.0K | +14.5% | open → |
| 2026-06-17 | 2026-06-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 900 | $205.0K | +15.1% | 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 | +14.7% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 270 | $54.8K | +29.1% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,000 | $404.3K | +29.7% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 3,570 | $718.3K | +30.3% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,432 | $486.9K | +30.9% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 928 | $184.7K | +31.7% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 400 | $79.1K | +32.5% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 300 | $58.5K | +34.3% | open → |
| 2026-05-19 | 2026-05-18 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 100 | $19.3K | +35.6% | 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 | +31.2% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 400 | $80.4K | +30.5% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,725 | $546.4K | +30.7% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,475 | $294.2K | +31.4% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 600 | $118.8K | +32.4% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,000 | $197.0K | +33.1% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,724 | $338.0K | +33.7% | open → |
| 2026-04-17 | 2026-04-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,076 | $405.0K | +34.4% | 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 | +46.7% | open → |
| 2025-01-06 | 2025-01-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 8,362 | $951.3K | +130.4% | 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 | +132.0% | open → |
| 2025-01-06 | 2025-01-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 3,879 | $444.1K | +129.0% | open → |
| 2025-01-21 | 2025-01-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 5,530 | $649.2K | +123.3% | 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 | +118.3% | 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 | +117.9% | open → |
| 2025-01-21 | 2025-01-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 4,970 | $592.3K | +120.0% | open → |
| 2025-01-21 | 2025-01-17 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 4,500 | $532.2K | +121.7% | open → |
| 2025-02-03 | 2025-02-03 | WOLF WOLFSPEED, INC. | Director | Grant | 1,642 | $10.0K | +279.1% | open → |
| 2025-02-05 | 2025-02-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 7,059 | $970.9K | +90.6% | open → |
| 2025-02-05 | 2025-02-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,548 | $211.3K | +92.1% | open → |
| 2025-02-05 | 2025-02-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,300 | $176.3K | +93.3% | open → |
| 2025-02-05 | 2025-02-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,366 | $326.8K | +89.8% | open → |
| 2025-02-05 | 2025-02-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,427 | $190.0K | +96.8% | open → |
| 2025-02-05 | 2025-02-03 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 200 | $26.4K | +98.9% | 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 | +95.1% | 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 | +53.2% | open → |
| 2025-02-19 | 2025-02-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 9,674 | $1.55M | +63.4% | open → |
| 2025-02-19 | 2025-02-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,970 | $479.6K | +62.3% | open → |
| 2025-02-19 | 2025-02-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 6,041 | $981.2K | +61.4% | open → |
| 2025-02-19 | 2025-02-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 8,450 | $1.38M | +60.5% | open → |
| 2025-02-19 | 2025-02-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 600 | $98.6K | +59.6% | open → |
| 2025-02-19 | 2025-02-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 800 | $132.8K | +58.0% | open → |
| 2025-02-19 | 2025-02-19 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 100 | $16.7K | +57.0% | 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 | +89.7% | open → |
| 2025-03-06 | 2025-03-05 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,791 | $389.3K | +88.0% | open → |
| 2025-03-06 | 2025-03-05 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,770 | $389.3K | +86.5% | open → |
| 2025-03-06 | 2025-03-05 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,700 | $240.4K | +85.4% | open → |
| 2025-03-06 | 2025-03-05 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 5,094 | $729.2K | +83.1% | open → |
| 2025-03-06 | 2025-03-05 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,345 | $336.9K | +82.5% | 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 | +118.5% | 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 | +118.2% | open → |
| 2025-05-16 | 2025-05-15 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Tax | 20,476 | $3.16M | +69.7% | open → |
| 2025-05-22 | 2025-05-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,416 | $223.2K | +66.3% | open → |
| 2025-05-22 | 2025-05-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 31,175 | $4.89M | +67.0% | open → |
| 2025-05-22 | 2025-05-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 8,965 | $1.40M | +67.9% | 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 | +45.3% | open → |
| 2025-06-23 | 2025-06-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 1,400 | $254.5K | +44.2% | open → |
| 2025-06-23 | 2025-06-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 600 | $110.2K | +42.8% | open → |
| 2025-06-23 | 2025-06-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 100 | $18.4K | +42.1% | 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 | +43.4% | open → |
| 2025-06-23 | 2025-06-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 4,820 | $864.9K | +46.1% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 100 | $19.5K | +34.3% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 395 | $76.6K | +35.1% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,766 | $534.2K | +35.7% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 4,771 | $916.9K | +36.4% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 8,133 | $1.55M | +37.2% | open → |
| 2026-02-24 | 2026-02-20 | NET Cloudflare, Inc. | Officer Chief Financial Officer | Sale | 2,613 | $497.4K | +37.7% | open → |
