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Verified 5 Nov 2026

Mack & Co., LLC

Multi-family office based in Dallas, Texas named in a 2025 SEC Schedule 13D ownership filing, which describes it as a founder of The Theo Group, a family office.

Type: Multi-family office
Location: Dallas, Texas, United States

Sources

www.sec.gov/Archives/edgar/data/1560258/000089183925000007/primary_doc.xml

Last checked 5 Nov 2026. Is something wrong? Tell us.

Appears in 5 lists

Family offices in Dallas-Fort Worth (23)Family offices in Texas (45)Multi-family offices in the United States (193)Multi-family offices (236)Family offices in the United States (481)