Magnite (MGNI) Chief Accounting Officer Brian Gephart Forfeits 3,789 Shares

What Happened
Brian Gephart, Chief Accounting Officer of Magnite, disposed of 3,789 shares on Aug 15, 2026 at an average price of $24.73 per share, totaling $93,702. This disposition was a non-discretionary forfeiture of shares to satisfy tax withholding obligations related to vested restricted stock units—not an open-market sale for investment purposes.

Key Details

• Transaction date: 2026-08-15; Filing date: 2026-08-18.
• Price and value: 3,789 shares × $24.73 = $93,702 (reported as "Disposed").
• Shares owned after transaction: not specified in the filing.
• Footnote: F1 indicates the shares were forfeited by the issuer to cover tax withholding on RSU vesting (mandatory, non-discretionary).
• Transaction type code: F (tax withholding/forfeiture), not a buy (P) or voluntary sale (S).

Context
Share forfeitures to cover tax withholding are a routine administrative action when restricted stock units vest. They do not necessarily indicate the insider's view of the company’s prospects, unlike open-market purchases which can be more informative about insider sentiment.