Julia Koch, the widow of billionaire industrialist David Koch, has sold her duplex at the exclusive Manhattan co-op 740 Park Avenue for $45 million, according to property records. The Kochs paid ...

has once again seen another prominent property sale. Julia Koch, one of the world’s richest women with an estimated net worth of $74.2 billion, according to Forbes, has just sold her co-op at ...

The seller was Julia Koch, widow of the late billionaire industrialist David Koch, The Post previously reported. Billionaire hedge funder Ken Griffin, known for amassing a massive real estate ...

Julia Koch, one of the world’s richest women with an estimated net worth of $74.2 billion, according to Forbes, has just sold her co-op at the exclusive Park Avenue palace for $45 million ...