Form 4: Magnite Executive Sells Shares for Tax Obligations

Magnite's President of Operations, Katie Seitz Evans, disposed of 10,354 shares of common stock to cover tax withholding obligations related to restricted stock unit vesting.

Summary

• Katie Seitz Evans, President of Operations at Magnite, Inc. (MGNI), reported a transaction involving company common stock.
• On November 15, 2025, 10,354 shares of Magnite common stock were disposed of at a price of $14.15 per share.
• This disposition was a non-discretionary forfeiture mandated by the Issuer to cover tax withholding obligations associated with the vesting of restricted stock units.
• Following this transaction, Katie Seitz Evans beneficially owns 383,735 shares of Magnite common stock.
• The transaction was made pursuant to a contract, instruction, or written plan for the purchase or sale of equity securities intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Sentiment

Score: 5

Explanation: The transaction is neutral as it represents a mandatory sale to cover tax obligations related to RSU vesting, not a discretionary sale indicating a change in executive sentiment or company outlook.

Positives

• The underlying event, the vesting of restricted stock units, represents a form of compensation for the executive, indicating continued employment and performance.

Negatives

• The transaction resulted in a reduction of 10,354 shares from the executive's direct beneficial ownership.

Industry Context

This transaction is a routine insider filing common for executives receiving equity compensation. It reflects the standard process of covering tax liabilities upon the vesting of restricted stock units, rather than a discretionary sale based on market sentiment or company performance.

Stakeholder Impact

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

Key Dates

Keywords

Magnite, MGNI, Form 4, Insider Transaction, Executive Compensation, RSU Vesting, Tax Withholding, Stock Sale