Soroca Adam Lee 4

What Happened
Adam Soroca, Chief Product Officer of MAGNITE, disposed of a total of 40,462 shares in mid-February 2026. On 2026-02-15 he forfeited 18,933 restricted shares to cover tax withholding at $11.70/share (value $221,516). On 2026-02-18 he sold 21,529 shares in an open-market sale at $12.00/share (proceeds $258,348). These were sales/forfeitures (not purchases).

Key Details

• Transaction dates and prices:
  • 2026-02-15: 18,933 shares forfeited at $11.70 (value $221,516) — tax withholding (F).
  • 2026-02-18: 21,529 shares sold in the open market at $12.00 (proceeds $258,348) — (S).
• Total shares disposed: 40,462; total value/proceeds ≈ $479,864.
• Shares owned after the transactions: not specified in the provided filing.
• Footnotes:
  • F1: Forfeiture was a non‑discretionary surrender of shares mandated by the issuer to cover tax withholding on vested RSUs.
  • F2: The open‑market sale was made under a Rule 10b5‑1 trading plan adopted by the reporting person on August 18, 2025.
• Filing: Form 4 filed on 2026-02-18 (no late filing flag indicated in the provided info).

Context
The forfeiture was a routine, issuer‑mandated withholding to satisfy tax obligations on vested restricted stock units (not a discretionary sale). The open‑market sale was executed under a pre-established 10b5‑1 plan, which is commonly used to schedule sales and reduce concerns about opportunistic timing. As a sale (not a purchase or option exercise followed by retention), this transaction is generally viewed as routine insider disposition rather than a bullish signal.