Magnite Inc. (NASDAQ: MGNI) announced that Chief Financial Officer David Day will retire, with a transition period extending through May 2027.

Day will continue serving as CFO through September 30, 2026, then work as a special advisor until May 31, 2027. The company's board has begun searching for a replacement, considering both internal and external candidates.

Day has served as CFO for ten years and previously helped lead Rubicon Project through its initial public offering. His tenure included overseeing the 2020 merger between Rubicon Project and Telaria, as well as acquisitions of SpotX and SpringServe.

"David has been an invaluable partner and a steady hand during a period of immense transformation for our company," said CEO Michael Barrett in the announcement.

Day managed Magnite's global financial operations including planning, accounting, reporting, financial systems, tax, treasury and investor relations. Before joining the company, he held executive positions at technology companies including Overture Services, Yahoo! Search Marketing, Spot Runner and ReachLocal.

The advertising technology company reaffirmed its financial expectations for the first quarter and full year 2026, as previously disclosed in its fourth quarter 2025 earnings release on February 25, 2026.

Magnite describes itself as an independent sell-side advertising platform that helps publishers monetize content across television, video, display and audio formats.