Form 4: Magnite CEO Sells 70,900 Shares Under Pre-Arranged 10b5-1 Plan

Magnite CEO Michael G. Barrett sold 70,900 shares of common stock for a weighted average price of $23.27 per share, as part of a pre-arranged 10b5-1 trading plan.

Summary

• Michael G. Barrett, CEO and Director of Magnite, Inc. (MGNI), sold 70,900 shares of common stock.
• The transaction occurred on July 15, 2025.
• The shares were sold at a weighted average price of $23.27, with individual sales ranging from $23.01 to $23.60.
• The sale was executed under a Rule 10b5-1 trading plan adopted on March 12, 2025.
• Following the transaction, Mr. Barrett directly owns 285,808 shares of Magnite common stock.

Sentiment

Score: 4

Explanation: The sale of 70,900 shares by the CEO, while executed under a pre-arranged 10b5-1 plan, represents a reduction in insider ownership. While 10b5-1 plans mitigate the negative signal, significant insider selling can still be perceived as a neutral to slightly negative indicator by investors, as it removes shares from the insider's direct stake.

Negatives

• CEO Michael G. Barrett sold a significant number of shares (70,900) of Magnite common stock, which reduces his direct ownership stake.
• While executed under a 10b5-1 plan, insider selling can sometimes be interpreted by investors as a signal of reduced confidence in the company's near-term prospects, or simply a diversification/liquidity event.

Future Outlook

NA

Industry Context

NA

Related Party Transactions

• Sale of 70,900 shares of common stock by CEO and Director Michael G. Barrett to the open market.

Stakeholder Impact

• Shareholders: Potential slight negative sentiment due to insider selling, though mitigated by the pre-arranged 10b5-1 plan.

Key Dates

Recommendation

Keywords

Magnite, MGNI, Insider Trading, Form 4, Stock Sale, CEO, Michael G. Barrett, 10b5-1 Plan, Share Ownership