Datadog, Inc. 4

Datadog, Inc. insider Julie Richardson exercised options, converted 5,625 Class B shares to Class A, and sold 5,625 Class A shares for roughly $1.19 million on September 4, 2026 under a 10b5-1 plan.

On September 4, 2026, Datadog, Inc. insider Julie Richardson exercised a fully vested stock option for 5,625 shares of Class B Common Stock at an exercise price of $7.9567 per share, converted those 5,625 Class B shares into Class A Common Stock, and then sold a total of 5,625 Class A shares in two open-market transactions under a Rule 10b5-1 trading plan at weighted-average prices of $212.2051 and $212.8518. The Form 4 shows a code C conversion of 5,625 Class B shares into Class A, the related option exercise (code M) at $7.9567, and subsequent sales of 5,212 and 413 Class A shares, respectively, leaving Richardson with 3,178 shares of Class A Common Stock held directly after the transactions. These trades appear to be a planned liquidity event rather than a new discretionary sale, with an estimated transaction value of roughly $1.19 million based on the reported sale prices and implying an after-transaction Class A holding value of about $675,000 at the prevailing price level.

Filing Facts

CIK

1561550

Ticker

DDOG

Form

4

Source Type

sec

Accession

0001466857-26-000012

Alert Tier

9