Form 4: Magnite CTO Sells Shares for Tax Obligation

Magnite's Chief Technology Officer, David Buonasera, sold 7,834 shares of common stock to cover tax obligations from vested Restricted Stock Units.

Summary

• David Buonasera, Magnite's Chief Technology Officer, sold 7,834 shares of common stock.
• The sale occurred on August 18, 2025, at a price of $23.85 per share.
• The transaction was non-discretionary, mandated by Magnite to cover tax obligations from vested Restricted Stock Units.
• Following the sale, Buonasera beneficially owns 241,579 shares of Magnite common stock.

Sentiment

Score: 5

Explanation: The transaction is a routine, non-discretionary 'sell to cover' for tax obligations related to vested RSUs, which is a neutral event and does not indicate a change in management's view of the company.

Future Outlook

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

Management Comments

• These shares were sold to cover the Reporting Person's tax obligation resulting from the settlement of vested Restricted Stock Units.
• The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by sell to cover transactions and does not represent a discretionary transaction by the Reporting Person.

Industry Context

This is a routine insider transaction filing, common for executives receiving equity compensation across various industries, and does not directly relate to broader industry trends or competitive dynamics.

Comparison to Industry Standards

• This transaction is a standard 'sell to cover' event, which is a common practice across all industries for executives to satisfy tax obligations arising from the vesting of equity awards like Restricted Stock Units (RSUs).
• Such non-discretionary sales are widely observed among publicly traded companies when their executives receive equity-based compensation, aligning with typical corporate governance and compensation practices.

Stakeholder Impact

• Shareholders: Minimal direct impact as this is a routine, non-discretionary transaction for tax purposes, not indicative of a change in company fundamentals or insider sentiment.

Key Dates

Recommendation

The reported transaction is a routine 'sell to cover' for tax obligations related to vested Restricted Stock Units, which is a common and non-discretionary event for executives. It does not reflect a change in the officer's investment sentiment or the company's fundamentals, thus it does not warrant a change in investment recommendation based solely on this filing.

Keywords

Magnite, MGNI, Form 4, Insider Trading, Stock Sale, CTO, Restricted Stock Units, Tax Obligation