Alexis Le-Quoc plan to sell securities of Datadog, Inc. under Form 144

Alexis Le-Quoc filed Form 144 to notify SEC of plan to sell 21123 units of Datadog, Inc. securities around 2026-09-02, with aggregate market value of $4,963,905.00. The total outstanding units is 334904614.0. The amount planned to be sold represents 0.01% of total outstanding units; Recent transactions in past 3 months include: On 08/24/2026, sold 43224 units for $9882290.15; On 08/10/2026, sold 53912 units for $13659165.89; On 07/20/2026, sold 43224 units for $11464111.33; On 07/08/2026, sold 53912 units for $13868382.19; On 06/22/2026, sold 43224 units for $9551315.34; On 06/02/2026, sold 21506 units for $5745422.53; On 06/01/2026, sold 53912 units for $14612578.04;