Form 4 Filing for Le-Quoc Alexis

On October 7, 2026, Le-Quoc Alexis, Chief Technology Officer and Director of Datadog, Inc., reported several transactions involving Class A Common Stock. These transactions included the acquisition of 53,912 shares of Class A Common Stock through the exercise of stock options and the conversion of Class B Common Stock, with a reported exercise price of $10.74 per share for the option. Additionally, 10,688 shares of Class B Common Stock were disposed of. The filing also details the sale of various amounts of Class A Common Stock, totaling 57,000 shares, executed under a 10b5-1 plan. The sales occurred at weighted-average prices ranging from $271.39 to $280.43 per share. Following these transactions, Le-Quoc Alexis directly holds 488,033 shares of Class A Common Stock and indirectly holds 169 shares through a trust. The Class B Common Stock held by the trust is convertible into Class A Common Stock.