Form 4: Magnite CTO Sells Over 12,000 Shares Under Pre-Arranged Trading Plan

Magnite, Inc.'s Chief Technology Officer, David Buonasera, sold a total of 12,395 shares of common stock in two separate transactions in late May 2025, pursuant to a Rule 10b5-1 trading plan.

Summary

• David Buonasera, Chief Technology Officer of Magnite, Inc. (MGNI), reported two sales of common stock.
• On May 23, 2025, Mr. Buonasera sold 3,653 shares of Magnite Common Stock at a price of $15.03 per share.
• Following this transaction, his beneficial ownership stood at 267,444 shares.
• On May 27, 2025, an additional 8,742 shares were sold at a price of $16.00 per share.
• After both transactions, Mr. Buonasera's direct beneficial ownership of Magnite Common Stock is 258,702 shares.
• Both reported transactions were executed pursuant to a Rule 10b5-1 trading plan, which was adopted by Mr. Buonasera on August 15, 2024.

Sentiment

Score: 5

Explanation: The transactions represent routine insider selling under a pre-arranged 10b5-1 trading plan, which is a common practice for diversification and liquidity and does not necessarily indicate a change in management's outlook on the company's prospects. Therefore, the sentiment is neutral.

Positives

• The sales were conducted under a pre-arranged Rule 10b5-1 trading plan, indicating they were scheduled in advance and not a reaction to recent non-public information, which can mitigate negative perceptions of insider selling.

Negatives

• Insider selling, even under a 10b5-1 plan, reduces the direct equity stake of a key executive in the company, which some investors may view as a slight negative.

Risks

• No specific new risks are introduced by this Form 4 filing beyond the general perception of insider selling.

Future Outlook

This Form 4 filing does not contain any forward-looking statements or guidance regarding the company's future performance or outlook.

Industry Context

This filing is a routine disclosure of insider stock transactions and does not provide broader industry context or trends. It is specific to Magnite, Inc. and its Chief Technology Officer.

Stakeholder Impact

• Shareholders: May interpret insider selling as a slight negative, though this is mitigated by the fact that the sales were conducted under a pre-arranged 10b5-1 plan, suggesting a planned diversification rather than a reaction to new adverse information.

Key Dates

Recommendation

Keywords

Magnite, MGNI, Insider Trading, Form 4, Stock Sale, David Buonasera, Chief Technology Officer, 10b5-1 plan