ARLINGTON, Va.–(BUSINESS WIRE)–Graham Holdings Company (NYSE: GHC) announced today that it will hold a virtual Investor Day on Thursday, December 9, 2021. The live webcast will be held from 1:00 p.m. to 3:00 p.m. Eastern Time (ET), and will include audio and presentation slides. There will be a discussion of the Company’s operations and financials, and feature presentations from the Graham Holdings management team. Registration is required. Please visit the Company’s website at https://www.gh