SEIFERT THOMAS J
SEC CIK 1473289 · EDGAR
BoughtSold
Most active insiders at NET, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Prince Matthew | CEO, Board Co-COB, Dir, 10% | — | $373.66M |
| 2 | Zatlyn Michelle | Pres, Board Co-COB, Dir | — | $228.67M |
| 3 | SEIFERT THOMAS J | CFO | — | $55.87M |
| 4 | Ledbetter Carl | Dir | — | $32.43M |
| 5 | Riley Janel | CAO | — | $8.78M |
| 6 | Graham-Cumming John | Dir | — | $6.36M |
| 7 | Kramer Douglas James | CLO | — | $5.59M |
| 8 | Starzak Alissa Michelle | CLO | — | $5.32M |
| 9 | Suder Katrin | Dir | — | $879.2K |
| 10 | Hawkins Mark J | Dir | — | $725.0K |
Transactions 236
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2024-05-21 | 2024-05-20 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 338.6K | +5% | — |
| DM | 2024-05-21 | 2024-05-20 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $75.13 | -28.6K | 309.9K | -8% | -$2.15M |
| 2024-05-17 | 2024-05-15 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | F - Tax | $74.25 | -14.9K | 323.6K | -4% | -$1.11M | |
| DM | 2024-05-06 | 2024-05-03 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $73.97 | -15.0K | 338.6K | -4% | -$1.11M |
| D | 2024-05-06 | 2024-05-03 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 353.5K | +4% | — |
| D | 2024-04-19 | 2024-04-18 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 353.5K | +4% | — |
| DM | 2024-04-19 | 2024-04-18 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $87.02 | -15.0K | 339.3K | -4% | -$1.31M |
| D | 2024-04-04 | 2024-04-03 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 353.5K | +4% | — |
| DM | 2024-04-04 | 2024-04-03 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $94.91 | -15.0K | 351.5K | -4% | -$1.42M |
| DMI | 2024-03-19 | 2024-03-15 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +95.0K | 50.0K | New | — |
| DMI | 2024-03-19 | 2024-03-15 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $91.78 | -95.0K | 100 | -100% | -$8.72M |
| DM | 2024-03-19 | 2024-03-15 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $91.77 | -15.0K | 345.1K | -4% | -$1.38M |
| D | 2024-03-19 | 2024-03-15 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 353.5K | +4% | — |
| DM | 2024-03-05 | 2024-03-04 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $99.87 | -15.0K | 338.5K | -4% | -$1.50M |
| D | 2024-03-05 | 2024-03-04 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 353.5K | +4% | — |
| DM | 2024-02-21 | 2024-02-20 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $96.56 | -27.9K | 357.4K | -7% | -$2.69M |
| D | 2024-02-21 | 2024-02-20 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 366.4K | +4% | — |
| 2024-02-20 | 2024-02-15 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | F - Tax | $101.22 | -15.1K | 351.4K | -4% | -$1.53M | |
| DT | 2024-02-12 | 2024-02-09 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +50.0K | 416.5K | +14% | — |
| DMT | 2024-02-12 | 2024-02-09 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $110.11 | -50.0K | 387.1K | -11% | -$5.51M |
| DM | 2024-02-05 | 2024-02-02 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $81.87 | -15.0K | 366.5K | -4% | -$1.23M |
| D | 2024-02-05 | 2024-02-02 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 381.5K | +4% | — |
| 2024-01-26 | 2024-01-24 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | A - Grant | $0.00 | +123.0K | 366.5K | +51% | $0 | |
| D | 2024-01-19 | 2024-01-18 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 258.5K | +6% | — |
| DM | 2024-01-19 | 2024-01-18 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $77.73 | -15.0K | 243.5K | -6% | -$1.17M |
| DM | 2024-01-03 | 2024-01-03 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $76.80 | -15.0K | 243.5K | -6% | -$1.15M |
| D | 2024-01-03 | 2024-01-03 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 258.5K | +6% | — |
| DM | 2023-12-19 | 2023-12-18 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $84.85 | -15.0K | 243.5K | -6% | -$1.27M |
| D | 2023-12-19 | 2023-12-18 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 258.5K | +6% | — |
| D | 2023-12-14 | 2023-12-13 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +34.3K | 277.8K | +14% | — |
| D | 2023-12-14 | 2023-12-13 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $80.21 | -34.3K | 243.5K | -12% | -$2.75M |
| D | 2023-12-08 | 2023-12-06 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $80.00 | -400 | 243.5K | -0.2% | -$32.0K |
| D | 2023-12-08 | 2023-12-06 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +400 | 243.9K | +0.2% | — |
| D | 2023-12-05 | 2023-12-04 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +30.3K | 273.8K | +12% | — |
| DM | 2023-12-05 | 2023-12-04 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $79.71 | -30.3K | 268.7K | -10% | -$2.41M |
| DM | 2023-11-20 | 2023-11-17 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $72.12 | -16.9K | 258.2K | -6% | -$1.22M |
| D | 2023-11-20 | 2023-11-17 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 260.4K | +6% | — |
| 2023-11-17 | 2023-11-15 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | F - Tax | $70.81 | -7,956 | 245.4K | -3% | -$563.4K | |
| DM | 2023-11-06 | 2023-11-03 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $63.17 | -15.0K | 253.4K | -6% | -$947.6K |
| D | 2023-11-06 | 2023-11-03 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 268.4K | +6% | — |
| DM | 2023-10-19 | 2023-10-18 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $63.03 | -15.0K | 258.0K | -5% | -$945.4K |
| D | 2023-10-19 | 2023-10-18 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 268.4K | +6% | — |
| DM | 2023-10-04 | 2023-10-03 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $59.23 | -15.0K | 253.4K | -6% | -$888.4K |
| D | 2023-10-04 | 2023-10-03 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 268.4K | +6% | — |
| DM | 2023-09-19 | 2023-09-18 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $61.74 | -15.0K | 253.4K | -6% | -$926.2K |
| D | 2023-09-19 | 2023-09-18 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 268.4K | +6% | — |
| DM | 2023-09-06 | 2023-09-05 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $64.53 | -15.0K | 266.4K | -5% | -$967.9K |
| D | 2023-09-06 | 2023-09-05 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 268.4K | +6% | — |
| D | 2023-08-21 | 2023-08-18 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 270.3K | +6% | — |
| DM | 2023-08-21 | 2023-08-18 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $58.33 | -16.9K | 267.2K | -6% | -$985.8K |
| 2023-08-16 | 2023-08-15 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | F - Tax | $62.11 | -7,956 | 255.3K | -3% | -$494.1K | |
| DM | 2023-08-07 | 2023-08-03 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $64.86 | -15.0K | 263.2K | -5% | -$972.9K |
| D | 2023-08-07 | 2023-08-03 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 278.2K | +6% | — |
| D | 2023-07-19 | 2023-07-18 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 278.2K | +6% | — |
| DM | 2023-07-19 | 2023-07-18 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $72.24 | -15.0K | 263.2K | -5% | -$1.08M |
| DM | 2023-07-05 | 2023-07-03 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $65.60 | -15.0K | 263.2K | -5% | -$984.0K |
| D | 2023-07-05 | 2023-07-03 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 278.2K | +6% | — |
| DM | 2023-06-21 | 2023-06-20 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $67.28 | -15.0K | 263.2K | -5% | -$1.01M |
| D | 2023-06-21 | 2023-06-20 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 278.2K | +6% | — |
| D | 2023-06-06 | 2023-06-05 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 278.2K | +6% | — |
| DM | 2023-06-06 | 2023-06-05 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $68.88 | -15.0K | 273.2K | -5% | -$1.03M |
| DM | 2023-05-22 | 2023-05-18 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $57.35 | -16.9K | 267.5K | -6% | -$969.2K |
| D | 2023-05-22 | 2023-05-18 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 280.1K | +6% | — |
| 2023-05-17 | 2023-05-15 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | F - Tax | $51.21 | -1,234 | 265.1K | -0.5% | -$63.2K | |
| D | 2023-05-04 | 2023-05-03 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 281.3K | +6% | — |
| DM | 2023-05-04 | 2023-05-03 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $42.33 | -15.0K | 266.3K | -5% | -$634.9K |
| 2023-04-21 | 2023-04-19 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | A - Grant | $0.00 | +205.0K | 266.3K | +334% | $0 | |
| D | 2023-04-19 | 2023-04-18 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 76.4K | +24% | — |
| DM | 2023-04-19 | 2023-04-18 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $64.49 | -15.0K | 65.2K | -19% | -$967.4K |
| DM | 2023-04-03 | 2023-03-30+ | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $60.26 | -65.0K | 61.4K | -51% | -$3.92M |
| DM | 2023-04-03 | 2023-03-30+ | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +65.0K | 106.1K | +158% | — |
| DM | 2023-03-21 | 2023-03-20 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $53.57 | -15.0K | 61.4K | -20% | -$803.5K |
| D | 2023-03-21 | 2023-03-20 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +15.0K | 76.4K | +24% | — |
| DM | 2023-02-28 | 2023-02-27 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $60.25 | -20.0K | 61.4K | -25% | -$1.20M |
| D | 2023-02-28 | 2023-02-27 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +20.0K | 81.4K | +33% | — |
| M | 2023-02-17 | 2023-02-17 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $64.65 | -15.2K | 67.1K | -18% | -$983.3K |
| 2023-02-17 | 2023-02-15 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | F - Tax | $72.40 | -9,869 | 76.6K | -11% | -$714.5K | |
| DM | 2023-02-14 | 2023-02-13 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $62.62 | -20.0K | 88.7K | -18% | -$1.25M |
| D | 2023-02-14 | 2023-02-13 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +20.0K | 106.4K | +23% | — |
| DM | 2023-01-31 | 2023-01-30 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $50.93 | -20.0K | 89.6K | -18% | -$1.02M |
| D | 2023-01-31 | 2023-01-30 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +20.0K | 106.4K | +23% | — |
| DM | 2023-01-18 | 2023-01-17 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $45.07 | -20.0K | 101.9K | -16% | -$901.4K |
| D | 2023-01-18 | 2023-01-17 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +20.0K | 106.4K | +23% | — |
| DM | 2023-01-04 | 2022-12-19+ | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $44.53 | -40.0K | 95.1K | -30% | -$1.78M |
| DM | 2023-01-04 | 2022-12-19+ | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +40.0K | 106.4K | +60% | — |
| DM | 2022-12-06 | 2022-12-05 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $44.53 | -20.0K | 98.0K | -17% | -$890.5K |
| D | 2022-12-06 | 2022-12-05 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +20.0K | 106.4K | +23% | — |
| DM | 2022-11-22 | 2022-11-21 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $45.62 | -20.0K | 86.4K | -19% | -$912.3K |
| D | 2022-11-22 | 2022-11-21 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +20.0K | 106.4K | +23% | — |
| DA | 2022-11-15 | 2022-11-11 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $50.15 | -50.0K | 86.4K | -37% | -$2.51M |
| DA | 2022-11-15 | 2022-11-11 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +50.0K | 136.4K | +58% | — |
| D | 2022-11-14 | 2002-11-11 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +50.0K | 138.4K | +57% | — |
| D | 2022-11-14 | 2002-11-11 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $50.15 | -50.0K | 88.4K | -36% | -$2.51M |
| DM | 2022-11-08 | 2022-11-07 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $40.78 | -20.0K | 86.4K | -19% | -$815.6K |
| D | 2022-11-08 | 2022-11-07 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +20.0K | 106.4K | +23% | — |
| 2022-05-25 | 2022-05-24 | IPGP | IPG PHOTONICS CORP | SEIFERT THOMAS J | Dir | A - Grant | $0.00 | +2,631 | 8,946 | +42% | $0 | |
| D | 2022-04-14 | 2022-04-12 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +10.0K | 96.4K | +12% | — |
| DM | 2022-04-14 | 2022-04-12 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $115.06 | -10.0K | 86.4K | -10% | -$1.15M |
| D | 2022-03-30 | 2022-03-29 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | C - Cnv Deriv | — | +10.0K | 96.4K | +12% | — |
| DM | 2022-03-30 | 2022-03-29 | NET | Cloudflare, Inc. | SEIFERT THOMAS J | CFO | S - Sale | $129.35 | -10.0K | 95.0K | -10% | -$1.29M |
Purchase Sale Sale after option exercise All abbreviations