This archive report was first published on 23 August 2019.
David Koch, the conservative mega-donor and co-owner of Koch Industries, passed away on August 23, 2019, at the age of 79.
At the time of his death, Koch's net worth was estimated at $58.7 billion, with the majority of his wealth stemming from his 42% stake in Koch Industries, a leading industrial conglomerate with annual revenues of approximately $110 billion, according to Forbes.
Known for his significant donations to conservative causes, Koch's real estate holdings spanned across several high-end locations, including New York City, the Hamptons, Aspen, Colorado, and Palm Beach, Florida.
Business Insider's calculations estimated Koch's real estate holdings to be worth at least $143 million, based on sale prices and Zillow estimates.
