Thomas J Seifert

Chief Financial Officer, Cloudflare

Bought, 12 months

$0.0M

Sold, 12 months

$57.5M

Companies

Latest trade

Oct 19, 2026

Companies

CloudflareChief Financial Officer −$59.6M

Trades

NET Sold 12,500 shares at $299.59 · planned $3.7M Oct 19

NET Sold 10,000 shares at $332.46 · planned $3.3M Sep 17

NET Sold 10,000 shares at $307.32 · planned $3.1M Aug 17

NET Sold 55,000 shares at $300.29 · planned $16.5M Aug 4

NET Sold 10,000 shares at $276.92 · planned $2.8M Jul 17

NET Sold 10,000 shares at $232.39 · planned $2.3M Jun 17

NET Sold 10,000 shares at $200.61 · planned $2.0M May 18

NET Sold 10,000 shares at $197.98 · planned $2.0M Apr 17

NET Sold 10,341 shares at $212.31 · planned $2.2M Mar 17

NET Sold 41,557 shares at $185.04 · planned $7.7M Feb 20

NET Sold 10,000 shares at $178.37 · planned $1.8M Jan 20

NET Sold 10,000 shares at $201.70 · planned $2.0M Dec 22

NET Sold 41,555 shares at $194.18 · planned $8.1M Nov 20

NET Sold 10,000 shares at $211.81 · planned $2.1M Oct 20

Open-market trades from SEC Form 4 only: no grants, option exercises or gifts. People are matched by the name on their filings, so two people with the same name share this page. For information only — not investment advice.