secwatch.observer — SEC 8-K summary
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Issuer:     MAGNITE, INC. (MGNI)
CIK:        0001595974
Form:       8-K
Filed at:   2026-04-20T23:59:59+00:00
Accession:  0001595974-26-000016
Event type: leadership
Sentiment:  neutral
Materiality: 0.45
Item codes: 5.02, 7.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Magnite CFO David Day to retire by Sept 30, 2026; transition advisor role through May 2027
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- David Day to retire as CFO, serve until Sept 30, 2026, then as non-executive advisor through May 31, 2027.
- Board commenced search for new CFO, including external and internal candidates; Day will assist in transition.
- Company reaffirmed Q1 and full year 2026 financial expectations, as previously disclosed on Feb 25, 2026.
- Day has been CFO for ~10 years; oversaw Magnite's growth including merger of Rubicon Project and Telaria and acquisitions of SpotX and SpringServe.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1595974/000159597426000016/0001595974-26-000016-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1595974/000159597426000016/mgni-20260420.htm
  HTML page:      https://secwatch.observer/filing/0001595974-26-000016

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer