Insider · SEC Forms 3, 4, 5
CIK 1494730
All transactions
Every Form 4 row this person reported, newest first
Insider · SEC Forms 3, 4, 5
Every Form 4 row this person reported, newest first
SEIFERT THOMAS J (CIK 1473289) reported 193 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-09-21). Recent activity: Buy NET (10,000 shares), Sell NET (1,196 shares), Sell NET (100 shares), Sell NET (100 shares), Sell NET (300 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-21 | Cloudflare, Inc. (NET) | Chief Financial Officer | Buy | 10,000 | $0 |
| 2026-09-21 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 1,196 | $396,581 |
| 2026-09-21 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 100 | $32,089 |
| 2026-09-21 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 100 | $32,656 |
| 2026-09-21 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 300 | $98,412 |
| 2026-09-21 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 700 | $230,561 |
| 2026-09-21 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 700 | $231,159 |
| 2026-09-21 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 100 | $31,890 |
| 2026-09-21 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 1,604 | $533,330 |
| 2026-09-21 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 2,632 | $878,080 |
| 2026-09-21 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 1,868 | $625,015 |
| 2026-09-21 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 600 | $201,192 |
| 2026-09-21 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 100 | $33,651 |
| 2026-09-15 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 2,944 | $963,365 |
| 2026-08-19 | Cloudflare, Inc. (NET) | Chief Financial Officer | Buy | 10,000 | $0 |
| 2026-08-19 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 900 | $274,724 |
| 2026-08-19 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 2,944 | $901,579 |
| 2026-08-19 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 2,456 | $754,715 |
| 2026-08-19 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 3,100 | $955,512 |
| 2026-08-19 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 200 | $62,464 |
| 2026-08-19 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 100 | $31,461 |
| 2026-08-19 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 300 | $92,721 |
| 2026-08-18 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 2,944 | $929,656 |
| 2026-08-06 | Cloudflare, Inc. (NET) | Chief Financial Officer | Sell | 53,861 | $16.2M |
| 2026-08-06 | Cloudflare, Inc. (NET) | Chief Financial Officer | Buy | 55,000 | $2.5M |
Source: SEC Form 4 filings · as of 2026-09-21