Datadog Co-Founder & Officer Alexis Le-Quoc Files Form 144 to Sell $15M in Common Stock

Executive Summary

On October 7, 2026, Alexis T Le-Quoc, Director and Officer of Datadog, Inc. ($DDOG), filed a Form 144 notice disclosing an intent to sell 53,912 shares of Class A Common Stock with an estimated aggregate market value of $15,000,474.88 (approx. $278.24 per share). The proposed transaction is scheduled through Morgan Stanley Smith Barney LLC.

Transaction & Acquisition Details

The 53,912 shares to be sold consist of:

• 10,688 shares acquired on October 7, 2026, through the exercise of stock options paid in cash.
• 43,224 shares acquired on December 6, 2023, via previously exercised stock options paid in cash.

10b5-1 Trading Plan & Recent History

• Trading Plan: The proposed sale is executed pursuant to a Rule 10b5-1 trading plan established on June 13, 2025.
• Prior Sales Activity: The reporting person has maintained a regular cadence of programmatic sales over the past three months, including sales on July 8, July 20, August 10, August 24, September 1, September 2, and September 23, 2026, generating tens of millions in gross proceeds.

Market Impact & Significance

• Dilution & Float Context: The 53,912 shares represent approximately 0.016% of Datadog's 334,904,614 outstanding shares, posing negligible liquidity pressure on the market.
• Significance Assessment: Medium. While the gross dollar value of $15.0M is sizable, it represents routine option-exercise monetization executed under a pre-established 10b5-1 plan adopted more than a year prior, minimizing negative signaling risk.