Unity Software shares fell as much as 15% in extended trading on Thursday after the video-game engine maker reported a third-quarter revenue miss and refrained from issuing guidance. "Our results in the third quarter were mixed," Unity said in a letter to shareholders. Whitehurst sold Red Hat to IBM for $34 billion in 2019. He said he sees some parallels between Red Hat and Unity, including market leadership and revenue growth. Notwithstanding Thursday's move, Unity shares are down about 12% this year, while the S&P 500 index has gained 13%.

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Persons: John Riccitiello, Jim Whitehurst, Whitehurst, Luis Felipe Visoso Organizations: Unity Software, StreetAccount, Unity, Red Hat, Management, Hat, IBM, Whitehurst Locations: China