Chicago
Oct 29, 2025
Siri co-founder sells downtown Chicago penthouse at a loss
Condo with lake views in Aqua Tower sold for $3.2M for seller Dag Kittlaus, who paid $3.8 million for it in 2018
Dag Kittlaus
Chicago
Dec 3, 2025
Final goodbye? Ken Griffin finds buyer for Park Tower penthouse asking nearly $13M
Billionaire Citadel co-founder is selling last bastion of Chicago property after leaving for Miami in 2022
Chicago
Jun 24, 2024
Siri co-founder puts Aqua Tower penthouse condo up for sale
Condos in iconic building have sold for well over $1,000 per square foot