David Ellison names Ynon Kreiz as Paramount-WBD co-CEO
David Ellison, chair and CEO of Paramount Skydance, announced that Ynon Kreiz, former Mattel CEO, will become co-CEO of the combined Paramount-Warner Bros. Discovery. Kreiz will manage day-to-day operations, while Ellison focuses on strategy. The merger is expected to close in early October, and Kreiz will start on October 5. The future roles of current WBD executives, including CEO David Zaslav, remain unclear.
How this was made

The 30-second read
Why it matters
Leadership changes are central to merger execution risk and can move stock prices if investors view them positively.
Market read
Executive appointment in a high‑profile media merger could influence investor sentiment and stock valuations for the involved companies.
What to watch
Details on the remaining WBD leadership team and Mattel's succession plan are not disclosed.
Background
The article reports the first public announcement of Ynon Kreiz joining the merged Paramount‑Warner Bros. Discovery as co‑CEO and his exit from Mattel.
Ticker impact
Warner Bros. Discovery will have Ynon Kreiz as co-CEO of the combined Paramount‑WBD company.
likely modest support for the stock as integration risk is perceived lower.
New co‑CEO appointment is a material development for the merger and may reduce execution uncertainty.
Mattel announces Ynon Kreiz will leave after eight years as CEO.
short‑term pressure as investors assess succession plan.
Executive change is a standard corporate event; impact depends on replacement details not disclosed.
Market effects
Media and entertainment sector may see improved merger confidence and potential consolidation benefits.
U.S. listed media stocks could experience modest re‑rating.
The combined Paramount‑WBD entity is a major global content producer; leadership change may affect worldwide streaming competition.
Counterpoint
The appointment may not translate into operational gains; integration risk remains high.
Key entities
- companyParamount Global
US‑listed media conglomerate involved in the merger.
- companyWarner Bros. Discovery
US‑listed media company merging with Paramount.
- companyMattel
Toy maker whose CEO is departing.



