Form 4 Filing for David M. Obstler

This filing details stock transactions by David M. Obstler, Chief Financial Officer of Datadog, Inc. (DDOG), on September 21, 2026. Obstler sold 10,000 shares of Class A Common Stock directly at $241.25 per share, pursuant to a 10b5-1 plan. Additionally, shares of Class A Common Stock were acquired and disposed of indirectly through trusts for his children, with his spouse as trustee. These indirect transactions involved shares acquired at $0.00 and disposed of at $241.25. The filing also notes the conversion of Class B Common Stock, which is convertible into Class A Common Stock, with automatic conversion under certain conditions including the death of the reporting person or the tenth anniversary of the IPO.