David Obstler plan to sell securities of Datadog, Inc. under Form 144

David Obstler filed Form 144 to notify SEC of plan to sell 16030 units of Datadog, Inc. securities around 2026-09-02, with aggregate market value of $3,767,050.00. The total outstanding units is 334904614.0. The amount planned to be sold represents 0.00% of total outstanding units; Recent transactions in past 3 months include: On 06/08/2026, sold 75000 units for $17376592.50; On 06/02/2026, sold 16323 units for $4360761.27;