BARRETT MICHAEL G. 4

What Happened Michael G. Barrett, CEO and Director of Magnite, Inc. (MGNI), had 23,549 shares (disposed) withheld at $11.70 per share — a total of $275,523 — to satisfy tax withholding obligations associated with vested restricted stock units. This was a non‑discretionary forfeiture to cover taxes, not an open‑market sale.

Key Details

• Transaction date: 2026-02-15; price per share: $11.70; total value: $275,523.
• Shares withheld/disposed: 23,549 (transaction code F — tax withholding).
• Shares owned after the transaction: not disclosed in the filing excerpt.
• Footnote: Represents non‑discretionary forfeiture of shares mandated by the issuer to cover tax withholding on RSU vesting.
• Filing date: 2026-02-18 — appears to have been filed within the required SEC timing window (timely).

Context This was a routine tax‑withholding/net settlement tied to RSU vesting (common practice), not an indication of a voluntary open‑market sale or purchase. Such withholding simply satisfies tax obligations and should not be interpreted alone as a bullish or bearish signal about insider sentiment.