Thomas J. Seifert
Chief Financial Officer · Cloudflare, Inc.
- 2024
- Sep 21, 2026
- 29
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Thomas J. Seifert files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Michelle Zatlyn - $175.60M in NET purchases and sales in the last 12 months
- Matthew Prince - $169.72M in NET purchases and sales in the last 12 months
- Carl Ledbetter - $27.27M in NET purchases and sales in the last 12 months
- Janel Riley - $8.78M in NET purchases and sales in the last 12 months
- Alissa Michelle Starzak - $5.32M in NET purchases and sales in the last 12 months
- John Graham-Cumming - $5.30M in NET purchases and sales in the last 12 months
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Frequently asked questions
Who is Thomas J. Seifert?
Thomas J. Seifert is a corporate insider, tracked as Chief Financial Officer of Cloudflare, Inc. (NET). InsiderAlpha holds 29 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Thomas J. Seifert submitted recently?
6 primary Form 4 filings in the last 90 days, covering 1 company.
Has Thomas J. Seifert been buying or selling stock?
Recorded transactions: 0 open-market purchases and 159 open-market sales ($94.97M) across all tracked filings.
