Datadog CEO Olivier Pomel Executes Significant Stock Transactions Under 10b5-1 Plan

This Form 4 filing reports significant stock transactions by Datadog CEO Olivier Pomel on June 16, 2026. Pomel converted 84,698 shares of Class B Common Stock to Class A Common Stock and subsequently sold 84,611 Class A shares through a pre-arranged 10b5-1 trading plan established on December 15, 2025. The sales occurred at weighted-average prices ranging from $226.43 to $235.94 per share, with individual transaction prices varying between $225.90 and $236.33. Following these transactions, Pomel's direct holdings decreased to 612,747 Class A shares and 8,946,913 Class B shares. The Class B shares are convertible to Class A shares at any time and will automatically convert upon certain events including transfer, death, or the tenth anniversary of Datadog's IPO. These transactions represent routine executive stock sales executed under a pre-established trading plan.