MAGNITE (MGNI) Director Paul Caine Sells 5,000 Shares

What Happened
Paul Caine, a director of MAGNITE, sold 5,000 shares in an open-market transaction on September 10, 2026, for a total of approximately $117,650. The reported weighted-average price was $23.53 per share; shares were sold at prices ranging from $23.22 to $23.63. This was a sale (not a purchase or option exercise), which is often a routine liquidity event.

Key Details

• Transaction date: 2026-09-10; Form filed: 2026-09-11 (appears timely).
• Shares sold: 5,000; weighted-average price reported: $23.53; range: $23.22–$23.63.
• Proceeds: approximately $117,650.
• Shares owned after the transaction: not disclosed in this filing.
• Footnotes: (F1) Sale was effected under a Rule 10b5-1 trading plan adopted August 20, 2025. (F2) Price is a weighted average; the filer will provide per-price breakdown upon request.
• Filing timeliness: No late filing indicated.

Context
Because the sale was made under a pre-established 10b5-1 trading plan, it was likely pre-scheduled and may not reflect the director’s current views on the company. Sales provide liquidity but are generally less informative about insider sentiment than purchases.