MGNI · Magnite, Inc.

The retirement of CFO David Day represents a high-materiality event given his decade-long tenure, central role in Magnite’s strategic evolution—including the 2020 Rubicon Project–Telaria merger and acquisitions of SpotX and SpringServe—and direct oversight of all finance functions: planning, accounting, reporting, tax, treasury, and investor relations. His departure follows a period of significant scale and integration, and his continued involvement through mid-2027 provides stability during the search for a successor. The Board’s stated intent to consider both internal and external candidates—combined with Day’s active participation—suggests emphasis on institutional knowledge transfer and strategic alignment over abrupt change. While the filing reaffirms prior Q1 and full-year 2026 financial expectations (first disclosed February 25, 2026), no updated guidance or performance commentary is provided in this release; thus, investors must assess whether the CFO transition introduces execution or forecasting risk absent further disclosure. The forward-looking statements disclaimer underscores that any future guidance remains subject to uncertainty, and the absence of interim updates heightens reliance on the incumbent’s stewardship through year-end.