Form 4: Magnite CFO Executes Pre-Planned Stock Sales Totaling 71,000 Shares

Magnite, Inc.'s Chief Financial Officer, David Day, completed the exercise of stock options and subsequent sale of 71,000 shares of common stock in pre-scheduled transactions under a Rule 10b5-1 trading plan.

Summary

• David Day, the Chief Financial Officer of Magnite, Inc. (MGNI), reported transactions involving the company's common stock.
• On June 24, 2025, Mr. Day exercised options to acquire 35,000 shares of common stock at an exercise price of $5.28 per share.
• Concurrently on June 24, 2025, he sold 35,000 shares of common stock at a price of $19.95 per share.
• On June 26, 2025, Mr. Day exercised options to acquire an additional 36,000 shares of common stock at an exercise price of $5.28 per share.
• Also on June 26, 2025, he sold 36,000 shares of common stock at a price of $20.95 per share.
• All reported transactions were executed pursuant to a Rule 10b5-1 trading plan adopted by Mr. Day on March 13, 2025.
• Following these transactions, Mr. Day's direct beneficial ownership of common stock is 443,528 shares.
• His direct beneficial ownership of employee stock options (right to buy) is 44,784 shares.
• The stock options vested 25% on April 1, 2021, with the remainder vesting in 36 equal monthly installments thereafter.

Sentiment

Score: 6

Explanation: The sentiment is neutral to slightly positive. While insider selling can sometimes be viewed negatively, the fact that these transactions were pre-planned under a Rule 10b5-1 plan mitigates concerns about opportunistic selling. The profitable nature of the option exercise and sale also reflects positively on the company's stock performance.

Positives

• The transactions were conducted under a pre-arranged Rule 10b5-1 trading plan, indicating a structured and pre-disclosed approach to insider stock sales, which can reduce concerns about opportunistic selling.
• The significant difference between the exercise price ($5.28) and the sale prices ($19.95 and $20.95) indicates a profitable transaction for the insider, reflecting past stock appreciation.

Negatives

• The sale of 71,000 shares by a Chief Financial Officer, even if pre-planned, represents a reduction in insider ownership, which some investors may interpret as a lack of confidence, although this is often part of routine liquidity or diversification strategies.

Future Outlook

The document does not contain any forward-looking statements or guidance regarding the company's future performance or strategic direction; it solely reports insider stock transactions.

Industry Context

This Form 4 filing is a routine disclosure of insider stock transactions and does not provide broader industry context. Such transactions are common across all industries as executives manage their personal portfolios and equity compensation.

Corporate Governance

Stakeholder Impact

• Shareholders: May view the insider selling with slight caution, but the 10b5-1 plan context generally alleviates significant concern. The profitable nature of the transactions could be seen as a positive indicator of past stock performance.
• Employees: No direct impact mentioned, but executive stock transactions are part of standard compensation practices.

Key Dates

Keywords

Magnite, MGNI, SEC Form 4, Insider Trading, Stock Sale, Option Exercise, David Day, Chief Financial Officer, Rule 10b5-1 Plan, Equity Compensation