Thomas J Seifert insider trades
Thomas J Seifert has filed 125 Form 4s with the SEC that we hold, for Cloudflare, Inc. (NET) (Chief Financial Officer), Wolfspeed, INC. (WOLF) (Director) and Ipg Photonics Corp (IPGP) (Director). Across all of them we count 0 purchases worth $0 and 508 sales worth $255.3M reported on Form 4. In the last 12 months: 0 purchases ($0) and 108 sales ($57.5M). The largest single trade was a sale of 53,861 shares of Cloudflare, Inc. worth $16.2M, dated 2026-08-04. Of 26 sales filed since we began reading the 10b5-1 checkbox, 26 (100%) were marked as made under a 10b5-1 trading plan. The first filing on our record is dated 2021-07-07 and the latest 2026-10-19.
Cloudflare, Inc. (NET)
Chief Financial Officer · 122 filings · 508 purchases and sales
| Trade date | Code | Shares | Value as filed | Filed | Source |
|---|---|---|---|---|---|
| 2002-11-11 | S, sale reported on Form 4 | 50,000 | $2.5M | 2022-11-14 | SEC |
| 2021-07-06 | S, sale reported on Form 4 | 10,157 | $1.1M | 2021-07-07 | SEC |
| 2021-07-06 | S, sale reported on Form 4 | 7,043 | $759.3K | 2021-07-07 | SEC |
| 2021-07-06 | S, sale reported on Form 4 | 2,800 | $298.9K | 2021-07-07 | SEC |
| 2021-07-20 | S, sale reported on Form 4 | 9,549 | $1.0M | 2021-07-22 | SEC |
| 2021-07-20 | S, sale reported on Form 4 | 31 | $3.4K | 2021-07-22 | SEC |
| 2021-07-20 | S, sale reported on Form 4 | 1,004 | $103.4K | 2021-07-22 | SEC |
| 2021-07-20 | S, sale reported on Form 4 | 2,100 | $218.3K | 2021-07-22 | SEC |
| 2021-07-20 | S, sale reported on Form 4 | 2,103 | $220.5K | 2021-07-22 | SEC |
| 2021-07-20 | S, sale reported on Form 4 | 4,013 | $430.1K | 2021-07-22 | SEC |
| 2021-07-20 | S, sale reported on Form 4 | 1,200 | $127.1K | 2021-07-22 | SEC |
| 2021-08-03 | S, sale reported on Form 4 | 6,196 | $731.6K | 2021-08-05 | SEC |
| 2021-08-03 | S, sale reported on Form 4 | 767 | $91.7K | 2021-08-05 | SEC |
| 2021-08-03 | S, sale reported on Form 4 | 13,037 | $1.6M | 2021-08-05 | SEC |
| 2021-08-17 | S, sale reported on Form 4 | 1,600 | $192.6K | 2021-08-18 | SEC |
| 2021-08-17 | S, sale reported on Form 4 | 11,975 | $1.4M | 2021-08-18 | SEC |
| 2021-08-17 | S, sale reported on Form 4 | 6,425 | $762.6K | 2021-08-18 | SEC |
| 2021-08-31 | S, sale reported on Form 4 | 7,682 | $936.6K | 2021-08-31 | SEC |
| 2021-08-31 | S, sale reported on Form 4 | 100 | $12.3K | 2021-08-31 | SEC |
| 2021-08-31 | S, sale reported on Form 4 | 12,218 | $1.5M | 2021-08-31 | SEC |
| 2021-09-14 | S, sale reported on Form 4 | 500 | $64.3K | 2021-09-15 | SEC |
| 2021-09-14 | S, sale reported on Form 4 | 5,193 | $664.7K | 2021-09-15 | SEC |
| 2021-09-14 | S, sale reported on Form 4 | 14,007 | $1.8M | 2021-09-15 | SEC |
| 2021-09-14 | S, sale reported on Form 4 | 300 | $37.8K | 2021-09-15 | SEC |
| 2021-09-28 | S, sale reported on Form 4 | 6,860 | $777.6K | 2021-09-29 | SEC |
| 2021-09-28 | S, sale reported on Form 4 | 300 | $35.5K | 2021-09-29 | SEC |
| 2021-09-28 | S, sale reported on Form 4 | 2,082 | $240.0K | 2021-09-29 | SEC |
| 2021-09-28 | S, sale reported on Form 4 | 1,400 | $163.0K | 2021-09-29 | SEC |
| 2021-09-28 | S, sale reported on Form 4 | 900 | $105.5K | 2021-09-29 | SEC |
| 2021-09-28 | S, sale reported on Form 4 | 8,458 | $967.0K | 2021-09-29 | SEC |
| 2021-10-12 | S, sale reported on Form 4 | 5,162 | $774.1K | 2021-10-13 | SEC |
| 2021-10-12 | S, sale reported on Form 4 | 1,653 | $245.8K | 2021-10-13 | SEC |
| 2021-10-12 | S, sale reported on Form 4 | 2,642 | $390.3K | 2021-10-13 | SEC |
| 2021-10-12 | S, sale reported on Form 4 | 3,970 | $582.5K | 2021-10-13 | SEC |
| 2021-10-12 | S, sale reported on Form 4 | 3,140 | $457.8K | 2021-10-13 | SEC |
| 2021-10-12 | S, sale reported on Form 4 | 3,433 | $517.8K | 2021-10-13 | SEC |
| 2021-10-26 | S, sale reported on Form 4 | 1,100 | $201.6K | 2021-10-28 | SEC |
| 2021-10-26 | S, sale reported on Form 4 | 2,950 | $543.9K | 2021-10-28 | SEC |
| 2021-10-26 | S, sale reported on Form 4 | 6,357 | $1.2M | 2021-10-28 | SEC |
| 2021-10-26 | S, sale reported on Form 4 | 2,030 | $377.9K | 2021-10-28 | SEC |
| 2021-10-26 | S, sale reported on Form 4 | 1,480 | $277.2K | 2021-10-28 | SEC |
| 2021-10-26 | S, sale reported on Form 4 | 3,218 | $605.8K | 2021-10-28 | SEC |
| 2021-10-26 | S, sale reported on Form 4 | 2,100 | $397.6K | 2021-10-28 | SEC |
| 2021-10-26 | S, sale reported on Form 4 | 765 | $145.9K | 2021-10-28 | SEC |
| 2021-11-09 | S, sale reported on Form 4 | 2,579 | $525.8K | 2021-11-10 | SEC |
| 2021-11-09 | S, sale reported on Form 4 | 4,633 | $948.4K | 2021-11-10 | SEC |
| 2021-11-09 | S, sale reported on Form 4 | 2,400 | $494.1K | 2021-11-10 | SEC |
| 2021-11-09 | S, sale reported on Form 4 | 1,800 | $372.1K | 2021-11-10 | SEC |
| 2021-11-09 | S, sale reported on Form 4 | 1,007 | $209.5K | 2021-11-10 | SEC |
| 2021-11-09 | S, sale reported on Form 4 | 200 | $41.7K | 2021-11-10 | SEC |
| 2021-11-09 | S, sale reported on Form 4 | 4,344 | $881.1K | 2021-11-10 | SEC |
| 2021-11-09 | S, sale reported on Form 4 | 2,413 | $487.2K | 2021-11-10 | SEC |
| 2021-11-09 | S, sale reported on Form 4 | 524 | $105.3K | 2021-11-10 | SEC |
| 2021-11-09 | S, sale reported on Form 4 | 100 | $21.0K | 2021-11-10 | SEC |
| 2021-11-23 | S, sale reported on Form 4 | 800 | $151.6K | 2021-11-24 | SEC |
| 2021-11-23 | S, sale reported on Form 4 | 400 | $75.4K | 2021-11-24 | SEC |
| 2021-11-23 | S, sale reported on Form 4 | 500 | $93.5K | 2021-11-24 | SEC |
| 2021-11-23 | S, sale reported on Form 4 | 1,800 | $334.3K | 2021-11-24 | SEC |
| 2021-11-23 | S, sale reported on Form 4 | 346 | $62.0K | 2021-11-24 | SEC |
| 2021-11-23 | S, sale reported on Form 4 | 1,900 | $343.2K | 2021-11-24 | SEC |
| 2021-11-23 | S, sale reported on Form 4 | 3,264 | $593.1K | 2021-11-24 | SEC |
| 2021-11-23 | S, sale reported on Form 4 | 3,293 | $601.7K | 2021-11-24 | SEC |
| 2021-11-23 | S, sale reported on Form 4 | 2,699 | $495.8K | 2021-11-24 | SEC |
| 2021-11-23 | S, sale reported on Form 4 | 4,998 | $923.1K | 2021-11-24 | SEC |
| 2021-12-07 | S, sale reported on Form 4 | 7,581 | $1.2M | 2021-12-08 | SEC |
| 2021-12-07 | S, sale reported on Form 4 | 5,481 | $860.5K | 2021-12-08 | SEC |
| 2021-12-07 | S, sale reported on Form 4 | 5,208 | $822.0K | 2021-12-08 | SEC |
| 2021-12-07 | S, sale reported on Form 4 | 1,530 | $243.1K | 2021-12-08 | SEC |
| 2021-12-07 | S, sale reported on Form 4 | 200 | $32.0K | 2021-12-08 | SEC |
| 2021-12-21 | S, sale reported on Form 4 | 400 | $54.8K | 2021-12-22 | SEC |
| 2021-12-21 | S, sale reported on Form 4 | 1,217 | $161.8K | 2021-12-22 | SEC |
| 2021-12-21 | S, sale reported on Form 4 | 2,211 | $296.3K | 2021-12-22 | SEC |
| 2021-12-21 | S, sale reported on Form 4 | 2,500 | $337.3K | 2021-12-22 | SEC |
| 2021-12-21 | S, sale reported on Form 4 | 1,556 | $211.5K | 2021-12-22 | SEC |
| 2021-12-21 | S, sale reported on Form 4 | 4,991 | $719.4K | 2021-12-22 | SEC |
| 2021-12-21 | S, sale reported on Form 4 | 971 | $134.0K | 2021-12-22 | SEC |
| 2021-12-21 | S, sale reported on Form 4 | 778 | $108.8K | 2021-12-22 | SEC |
| 2021-12-21 | S, sale reported on Form 4 | 891 | $125.5K | 2021-12-22 | SEC |
| 2021-12-21 | S, sale reported on Form 4 | 400 | $56.8K | 2021-12-22 | SEC |
| 2021-12-21 | S, sale reported on Form 4 | 4,085 | $584.8K | 2021-12-22 | SEC |
| 2022-01-04 | S, sale reported on Form 4 | 2,927 | $332.8K | 2022-01-05 | SEC |
| 2022-01-04 | S, sale reported on Form 4 | 100 | $12.4K | 2022-01-05 | SEC |
| 2022-01-04 | S, sale reported on Form 4 | 2,166 | $237.3K | 2022-01-05 | SEC |
| 2022-01-04 | S, sale reported on Form 4 | 800 | $88.3K | 2022-01-05 | SEC |
| 2022-01-04 | S, sale reported on Form 4 | 1,652 | $184.4K | 2022-01-05 | SEC |
| 2022-01-04 | S, sale reported on Form 4 | 1,027 | $115.7K | 2022-01-05 | SEC |
| 2022-01-04 | S, sale reported on Form 4 | 1,571 | $181.5K | 2022-01-05 | SEC |
| 2022-01-04 | S, sale reported on Form 4 | 900 | $104.8K | 2022-01-05 | SEC |
| 2022-01-04 | S, sale reported on Form 4 | 500 | $58.8K | 2022-01-05 | SEC |
| 2022-01-04 | S, sale reported on Form 4 | 475 | $56.4K | 2022-01-05 | SEC |
| 2022-01-04 | S, sale reported on Form 4 | 500 | $60.0K | 2022-01-05 | SEC |
| 2022-01-04 | S, sale reported on Form 4 | 740 | $89.4K | 2022-01-05 | SEC |
| 2022-01-04 | S, sale reported on Form 4 | 500 | $61.4K | 2022-01-05 | SEC |
| 2022-01-04 | S, sale reported on Form 4 | 6,142 | $704.5K | 2022-01-05 | SEC |
| 2022-01-18 | S, sale reported on Form 4 | 3,623 | $347.2K | 2022-01-20 | SEC |
| 2022-01-18 | S, sale reported on Form 4 | 5,583 | $529.9K | 2022-01-20 | SEC |
| 2022-01-18 | S, sale reported on Form 4 | 5,251 | $492.0K | 2022-01-20 | SEC |
| 2022-01-18 | S, sale reported on Form 4 | 100 | $10.0K | 2022-01-20 | SEC |
| 2022-01-18 | S, sale reported on Form 4 | 1,200 | $119.0K | 2022-01-20 | SEC |
| 2022-01-18 | S, sale reported on Form 4 | 1,148 | $112.2K | 2022-01-20 | SEC |
Newest 100 of 508
Wolfspeed, INC. (WOLF)
Director · 2 filings · 0 purchases and sales
No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.
Ipg Photonics Corp (IPGP)
Director · 1 filing · 0 purchases and sales
No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.
Source
Counted from the Form 4 filings this reporting owner (SEC CIK 1473289) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
