Form 4: Datadog COO Sells Shares Under 10b5-1 Plan

Datadog's Chief Operating Officer, Adam Blitzer, sold a total of 16,531 shares of Class A Common Stock in early December 2025, primarily under a Rule 10b5-1 trading plan and for tax obligations.

Summary

• Adam Blitzer, Datadog's Chief Operating Officer, reported sales of Class A Common Stock.
• On December 2, 2025, 8,508 shares were sold at a weighted-average price of $158.5985. This sale was required by the Issuer to cover applicable tax withholding obligations realized upon the vesting of restricted stock units and performance-based restricted stock units, as well as related brokerage commission fees.
• On December 3, 2025, a total of 8,023 shares were sold across three separate transactions: 4,410 shares at a weighted-average price of $153.8495 (ranging from $153.34 to $154.32), 601 shares at a weighted-average price of $154.7444 (ranging from $153.34 to $155.29), and 3,012 shares at a weighted-average price of $155.689 (ranging from $155.36 to $155.96). These sales were executed pursuant to a Rule 10b5-1 plan dated August 14, 2024.
• Following these transactions, Adam Blitzer beneficially owns 165,197 shares of Class A Common Stock.

Sentiment

Score: 5

Explanation: The sentiment is neutral. While insider selling can sometimes be perceived negatively, the sales are explained by tax obligations and a pre-arranged 10b5-1 plan, which are routine and expected events for executives managing their equity compensation.

Positives

• The sales on December 3, 2025, were conducted under a pre-arranged Rule 10b5-1 trading plan, indicating a systematic approach to liquidity rather than a reactive sale based on new, non-public information.
• The sale on December 2, 2025, was explicitly stated to cover tax withholding obligations and brokerage fees related to the vesting of restricted stock units, which is a common and expected event for executives.

Negatives

• Insider selling, even if planned or for tax purposes, reduces the direct equity stake of a key executive in the company.

Future Outlook

No forward-looking statements or guidance are provided in this Form 4 filing.

Management Comments

• The Reporting Person was required by the Issuer to sell only the number of shares of common stock necessary to cover applicable tax withholding obligations realized upon the vesting of restricted stock units and performance-based restricted stock units, as well as any related brokerage commission fees.
• Shares sold pursuant to a 10b5-1 plan dated August 14, 2024.

Industry Context

This filing reports routine insider transactions for Datadog's COO. Such transactions are common across the technology and software industry, particularly for executives who receive a significant portion of their compensation in equity, often necessitating sales for tax purposes or personal financial planning via 10b5-1 plans. It does not provide specific insights into broader industry trends or competitive dynamics.

Comparison to Industry Standards

• Sales of shares by executives to cover tax obligations upon vesting of equity awards are standard practice across publicly traded companies, especially in high-growth sectors like software where equity compensation is prevalent.
• The use of Rule 10b5-1 plans for pre-scheduled stock sales is a widely adopted corporate governance practice, providing an affirmative defense against insider trading allegations by demonstrating that sales were planned when the insider was not in possession of material non-public information. This aligns with best practices for executive stock transactions.

Corporate Governance

Stakeholder Impact

• Shareholders: The sale of shares by a key executive could be perceived as a slight negative, but the context of tax withholding and a 10b5-1 plan mitigates concerns. The reduction in direct ownership is minor relative to the company's overall market capitalization.
• Employees, Customers, Suppliers, Creditors: No direct impact on these stakeholders is indicated by this routine insider transaction filing.

Key Dates

Recommendation

The Form 4 details routine insider stock sales by Datadog's COO, Adam Blitzer, primarily under a Rule 10b5-1 plan and for tax withholding obligations. These transactions do not indicate a change in the company's fundamental outlook or performance, thus a 'hold' recommendation is appropriate based solely on this filing.

Keywords

Datadog, DDOG, Adam Blitzer, Chief Operating Officer, COO, Form 4, insider trading, stock sale, 10b5-1 plan, equity, common stock, restricted stock units, tax withholding