Form 4 Filing by Thomas J. Seifert, Chief Financial Officer of Cloudflare, Inc.

On December 22, 2025, Thomas J. Seifert, the Chief Financial Officer of Cloudflare, Inc., reported several transactions involving Class A Common Stock. Seifert acquired 10,000 shares of Class A Common Stock under a Rule 10b5-1 trading plan. Subsequently, he disposed of a total of 9,990 shares of Class A Common Stock through multiple transactions, with prices ranging from $198.34 to $203.59. These sales were executed as part of the aforementioned trading plan. Additionally, Seifert exercised employee stock options to acquire 10,000 shares of Class B Common Stock, which is convertible into Class A Common Stock. He then disposed of these 10,000 shares of Class B Common Stock. The filing also details indirect holdings of Class B Common Stock through various trusts and partnerships, which are convertible into Class A Common Stock.