Insiders / Seifert Thomas J
Seifert Thomas J
CIK 1473289personinsider
Companies
1
First seen
Jan 21, 2026
Last activity
Mar 17, 2026
Companies
| Company | Shares held | Latest |
|---|---|---|
| Cloudflare, Inc. · NET | 224,625 | — |
All securities held
3 positions · latest reported per filing
| Company | Security | Shares |
|---|---|---|
| Cloudflare, Inc. | Class A Common Stock | 224,625 |
| Cloudflare, Inc. | Employee Stock Option (right to buy)Derivative | 60,000 |
| Cloudflare, Inc. | Class B Common StockDerivative | 8,925 |
Activity
InsidersInstitutions
This person's insider trades (Form 4), across every company.| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Feb 15, 2026 | Other | NET Cloudflare, Inc. Class A Common Stock | $4.01M | -20K -14.89% | 117,009 0.03% of shares | low |
| Feb 20, 2026 | Sell | NET Cloudflare, Inc. Class A Common Stock | $1.55M | -8K -8.00% | 93,484 0.03% of shares | medium |
| Feb 20, 2026 | Sell | NET Cloudflare, Inc. Class A Common Stock | $1.47M | -8K -6.52% | 118,730 0.03% of shares | medium |
| Mar 17, 2026 | Sell | NET Cloudflare, Inc. Class A Common Stock | $1.06M | -5K -2.16% | 226,625 0.06% of shares | medium |
| Feb 20, 2026 | Sell | NET Cloudflare, Inc. Class A Common Stock | $916.9K | -5K -5.10% | 88,713 0.02% of shares | medium |
| Feb 20, 2026 | Sell | NET Cloudflare, Inc. Class A Common Stock | $839.1K | -5K -3.96% | 114,030 0.03% of shares | medium |
| Mar 17, 2026 | Sell | NET Cloudflare, Inc. Class A Common Stock | $643.7K | -3K -1.30% | 231,625 0.07% of shares | medium |
| Mar 15, 2026 | Other | NET Cloudflare, Inc. Class A Common Stock | $625.2K | -3K -1.29% | 224,625 0.06% of shares | low |
| Jan 20, 2026 | Sell | NET Cloudflare, Inc. Class A Common Stock | $615.1K | -3K -2.37% | 143,086 0.04% of shares | medium |
| Feb 20, 2026 | Sell | NET Cloudflare, Inc. Class A Common Stock | $534.2K | -3K -3.12% | 85,947 0.02% of shares | medium |