Form 4: Magnite Director Douglas Knopper Executes Stock Sale

Director Douglas Knopper acquired 13,798 restricted stock units and subsequently sold 10,766 shares of Magnite, Inc. common stock.

Summary

• Director Douglas Knopper received 13,798 restricted stock units (RSUs) on June 8, 2026, as compensation for services.
• The RSUs are scheduled to vest on the earliest of June 8, 2027, the 2027 annual meeting date, or a change of control.
• On June 10, 2026, the director sold 10,766 shares of common stock at a weighted average price of $15.73 per share.
• The sale was executed under a pre-established Rule 10b5-1 trading plan adopted on December 12, 2025.
• Following these transactions, the director holds 163,147 shares of Magnite, Inc. common stock.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral event, as the transaction was pre-planned and represents a routine adjustment of personal holdings by a director.

Positives

• The director maintains a significant equity stake of 163,147 shares, aligning interests with shareholders.

Negatives

• The director reduced his total beneficial ownership by 10,766 shares through the sale.

Risks

• The sale was conducted via a Rule 10b5-1 plan, which is a standard mechanism for insiders to sell shares, but it reflects a reduction in personal holdings.

Future Outlook

No specific forward-looking guidance regarding company performance was provided in this filing.

Industry Context

StockSavvy.ai notes that insider selling via Rule 10b5-1 plans is a common practice for liquidity and diversification among executives and directors in the ad-tech sector.

Comparison to Industry Standards

• The use of Rule 10b5-1 plans is the industry standard for corporate insiders to avoid potential conflicts of interest regarding material non-public information.

Stakeholder Impact

• Minimal impact on shareholders as the sale was executed through a pre-planned 10b5-1 program.

Next Steps

• Vesting of 13,798 restricted stock units on or before June 8, 2027.

Key Dates

Keywords

Magnite, MGNI, Insider Trading, Form 4, Director, Equity Compensation