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Mars plans 600 jobs at new Chicago global headquarters

Candy giant leases five floors after $36 billion Kellanova buyout
Mars is opening a large new office at 400 N. Aberdeen St. in Chicago. (Justin Schmidt/CoStar)
Mars is opening a large new office at 400 N. Aberdeen St. in Chicago. (Justin Schmidt/CoStar)
CoStar News
March 25, 2026 | 6:38 P.M.

Candy maker Mars is investing $100 million and adding about 600 new jobs in Chicago as it opens an office in Fulton Market, expanding its already large presence in the city after last year’s $36 billion acquisition of Kellanova.

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