MAGNITE (MGNI) Director Sarah Harden Sells Shares

What Happened

• Sarah Patricia Harden, a director of MAGNITE, Inc. (MGNI), sold a total of 48,986 shares in two open-market transactions: 30,550 shares on 2026-08-26 at a weighted average price of $23.31 (proceeds $712,121) and 18,436 shares on 2026-08-28 at $24.00 (proceeds $442,464). Total proceeds were approximately $1,154,585. Both transactions are reported as sales (code S).

Key Details

• Transaction dates and prices:
  • 2026-08-26 — 30,550 shares @ weighted avg $23.31 (range $23.09–$23.52) — $712,121 (footnote F2: weighted-average / price range).
  • 2026-08-28 — 18,436 shares @ $24.00 — $442,464.
• Total shares sold: 48,986; total proceeds: ~$1.15M.
• Shares owned after transaction: Not specified in the provided Form 4 excerpt.
• Footnotes:
  • F1: Transactions were effected pursuant to a Rule 10b5‑1 trading plan adopted May 27, 2026.
  • F2: The 8/26 price is a weighted average; shares were sold at prices from $23.09 to $23.52. The filer can provide a price breakdown on request.
• Filing timeliness: Form filed 2026-08-28 for trades on 2026-08-26 and 2026-08-28 — no late filing is indicated.

Context

• These were pre‑arranged open‑market sales under a Rule 10b5‑1 plan (a typical mechanism for insiders to schedule transactions); such sales are generally viewed as routine liquidity transactions and do not necessarily indicate a change in the insider’s view of the company. Purchases by insiders tend to carry more informational weight than scheduled sales.