Iris Fontbona & family
Mining · Santiago
Net worth
$43.3B
Today
+$700M+1.64%Past month
−$4.5B−9.40%As of Nov 11, 2026, 1:50 PM EST
Iris Fontbona is the widow of Andrónico Luksic, who built a fortune in mining and beverages before dying of cancer in 2005. He left his businesses to Fontbona and his three sons: Jean-Paul, Andrónico and Guillermo Luksic (who died of lung cancer in 2013 at age 57). Fontbona and her children control Antofagasta Plc, which owns copper mines in Chile and trades on the London Stock Exchange. Fontbona and her children also own a majority stake in Quiñenco, a publicly-traded Chilean conglomerate active in banking, beer and manufacturing. Jean-Paul Luksic is chairman of Antofagasta; Andrónico Luksic, who headed up Quiñenco since 2013, stepped down in December 2023.
Net worth over time
Principal holdings
3 positions| Company | Industry | Share | Value |
|---|---|---|---|
Antofagasta PLC LONDON: ANTO-GB | Metals & Mining | 63.8% | $27.6B |
Private and other holdings | Metals & Mining | 21.7% | $9.4B |
Quinenco SA SANTIAGO: QUINENCO-CL | Metals & Mining | 14.5% | $6.3B |
Also known for
- In 2004, her son Andrónico climbed Mount Everest, and in 2005 he completed The Seven Summits of the World, reaching the highest peaks on each continent.