Buonasera David 4

What Happened
David Buonasera, Chief Technology Officer of Magnite, Inc. (MGNI), disposed of 9,376 shares in an open-market/private sale on July 1, 2026. The shares were sold at $20.00 per share for a total transaction value of $187,520. This was a sale (not a purchase); such sales can be routine and do not necessarily indicate a change in insider confidence.

Key Details

• Transaction date and price: July 1, 2026 — 9,376 shares sold at $20.00 per share.
• Gross proceeds: $187,520.
• Shares owned after transaction: Not specified in the provided filing excerpt.
• Filing date: Form 4 filed July 2, 2026 — appears timely (Form 4s are generally due within two business days).
• Footnote: Transaction was effected pursuant to a Rule 10b5‑1 trading plan adopted by Buonasera on September 11, 2025.

Context
A 10b5‑1 plan is a preset trading arrangement that allows insiders to sell shares on a scheduled or formulaic basis; trades under such plans are often viewed as planned liquidity events rather than opportunistic trades based on inside information. For retail investors, purchases by insiders tend to carry more weight as a bullish signal; routine sales under 10b5‑1 plans are common and typically reflect personal liquidity needs or diversification.