Family 360
Familia Castro-Brennan
Est. 1978Head of family Eduardo Castro MüllerTracked AUM $575M
Viewing as
Ledger snapshot · 2026-08-21
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Ownership chain
Every stake as the ledger records it, from the people who hold them down to the assets underneath. Percentages are the ledger's own figures.
Eduardo Castro MüllerPerson
100%Castro Family Residence — RecoletaUBOAsset$5,800,000
100%Castro José Ignacio Beach HouseUBOAsset$4,200,000
100%Eduardo Castro Fideicomiso de AdministraciónArgentinaUBOStructure
55%Castro Agro Holding S.A.ArgentinaUBOStructure
100%Castro Agro Operaciones S.A.ArgentinaStructure
100%Castro Agro — Seed Variety IP and TrademarksAsset$5,500,000
100%Castro Agro Operaciones — Grain Production and ExportAsset$320,000,000
100%Castro Estancia — Premium Cattle StockAsset$6,500,000
100%Castro Estancia La EsperanzaAsset$22,000,000
100%Castro HQ — Buenos AiresAsset$8,500,000
100%Castro Pampas — Water Rights and ConcessionsAsset$2,800,000
12%Cooperativa Agraria Pampeana (minority interest)ArgentinaStructure
100%Castro Agro Uruguay S.A.UruguayStructure
100%Castro Agro Uruguay — Cross-Border Export HubAsset$45,000,000
100%Castro AR — Argentine Government BondsAsset$12,000,000
100%Castro AR — Listed Argentine EquityAsset$7,000,000
100%Castro Art CollectionAsset$8,000,000
100%Castro Family Pledge — Brennan Foundation (US 501c3)Asset$5,000,000
100%Castro Holdings Panama S.A.PanamaStructure
100%Castro-Brennan Family Office S.A.UruguayStructure
100%Castro UY — USD Cash (Uruguayan custodian)Asset$14,000,000
Mateo Castro BrennanPerson
100%Castro Punta del Este YachtUBOAsset$4,800,000
15%Castro Agro Holding S.A.ArgentinaUBOStructure
100%Castro Agro Operaciones S.A.ArgentinaStructure
100%Castro Agro — Seed Variety IP and TrademarksAsset$5,500,000
100%Castro Agro Operaciones — Grain Production and ExportAsset$320,000,000
100%Castro Estancia — Premium Cattle StockAsset$6,500,000
100%Castro Estancia La EsperanzaAsset$22,000,000
100%Castro HQ — Buenos AiresAsset$8,500,000
100%Castro Pampas — Water Rights and ConcessionsAsset$2,800,000
12%Cooperativa Agraria Pampeana (minority interest)ArgentinaStructure
100%Castro Agro Uruguay S.A.UruguayStructure
100%Castro Agro Uruguay — Cross-Border Export HubAsset$45,000,000
100%Castro AR — Argentine Government BondsAsset$12,000,000
100%Castro AR — Listed Argentine EquityAsset$7,000,000
100%Castro Art CollectionAsset$8,000,000
100%Castro Family Pledge — Brennan Foundation (US 501c3)Asset$5,000,000
100%Castro Holdings Panama S.A.PanamaStructure
100%Castro-Brennan Family Office S.A.UruguayStructure
100%Castro UY — USD Cash (Uruguayan custodian)Asset$14,000,000
Sofía Castro BrennanPerson
100%Castro Investments USA LLCUnited StatesUBOStructure
100%Brennan-Mitchell Family Trust (Sofía branch)United StatesStructure
100%Brennan-Mitchell Trust — Investment PortfolioAsset$18,000,000
100%Castro — USD Cash (multiple custodians)Asset$8,500,000
100%Castro Real Estate Florida LLCUnited StatesStructure
100%Castro Key Biscayne Investment PropertyAsset$3,400,000
100%Sofía's Miami CondoAsset$7,800,000
100%Castro US — Bond PortfolioAsset$22,000,000
100%Castro US — Equity Portfolio (Charles Schwab)Asset$38,000,000
100%Castro US — PE AllocationAsset$12,000,000
15%Castro Agro Holding S.A.ArgentinaUBOStructure
100%Castro Agro Operaciones S.A.ArgentinaStructure
100%Castro Agro — Seed Variety IP and TrademarksAsset$5,500,000
100%Castro Agro Operaciones — Grain Production and ExportAsset$320,000,000
100%Castro Estancia — Premium Cattle StockAsset$6,500,000
100%Castro Estancia La EsperanzaAsset$22,000,000
100%Castro HQ — Buenos AiresAsset$8,500,000
100%Castro Pampas — Water Rights and ConcessionsAsset$2,800,000
12%Cooperativa Agraria Pampeana (minority interest)ArgentinaStructure
100%Castro Agro Uruguay S.A.UruguayStructure
100%Castro Agro Uruguay — Cross-Border Export HubAsset$45,000,000
100%Castro AR — Argentine Government BondsAsset$12,000,000
100%Castro AR — Listed Argentine EquityAsset$7,000,000
100%Castro Art CollectionAsset$8,000,000
100%Castro Family Pledge — Brennan Foundation (US 501c3)Asset$5,000,000
100%Castro Holdings Panama S.A.PanamaStructure
100%Castro-Brennan Family Office S.A.UruguayStructure
100%Castro UY — USD Cash (Uruguayan custodian)Asset$14,000,000
Valentina Castro BrennanPerson
15%Castro Agro Holding S.A.ArgentinaUBOStructure
100%Castro Agro Operaciones S.A.ArgentinaStructure
100%Castro Agro — Seed Variety IP and TrademarksAsset$5,500,000
100%Castro Agro Operaciones — Grain Production and ExportAsset$320,000,000
100%Castro Estancia — Premium Cattle StockAsset$6,500,000
100%Castro Estancia La EsperanzaAsset$22,000,000
100%Castro HQ — Buenos AiresAsset$8,500,000
100%Castro Pampas — Water Rights and ConcessionsAsset$2,800,000
12%Cooperativa Agraria Pampeana (minority interest)ArgentinaStructure
100%Castro Agro Uruguay S.A.UruguayStructure
100%Castro Agro Uruguay — Cross-Border Export HubAsset$45,000,000
100%Castro AR — Argentine Government BondsAsset$12,000,000
100%Castro AR — Listed Argentine EquityAsset$7,000,000
100%Castro Art CollectionAsset$8,000,000
100%Castro Family Pledge — Brennan Foundation (US 501c3)Asset$5,000,000
100%Castro Holdings Panama S.A.PanamaStructure
100%Castro-Brennan Family Office S.A.UruguayStructure
100%Castro UY — USD Cash (Uruguayan custodian)Asset$14,000,000
Beneficial ownership
Each terminal holding with the effective stake multiplied through every layer between the principal and the asset — the chain nobody typed in.
Eduardo Castro Müller · 17 terminal holdings
100%
Eduardo Castro Fideicomiso de Administración
Eduardo Castro Müller/Eduardo Castro Fideicomiso de Administración
—
100%
Castro José Ignacio Beach House
Eduardo Castro Müller/Castro José Ignacio Beach House
$4,200,000
100%
Castro Family Residence — Recoleta
Eduardo Castro Müller/Castro Family Residence — Recoleta
$5,800,000
55%
Castro AR — Argentine Government Bonds
Eduardo Castro Müller/Castro Agro Holding S.A./Castro AR — Argentine Government Bonds
$12,000,000
55%
Castro AR — Listed Argentine Equity
Eduardo Castro Müller/Castro Agro Holding S.A./Castro AR — Listed Argentine Equity
$7,000,000
55%
Castro Art Collection
Eduardo Castro Müller/Castro Agro Holding S.A./Castro Art Collection
$8,000,000
55%
Castro Family Pledge — Brennan Foundation (US 501c3)
Eduardo Castro Müller/Castro Agro Holding S.A./Castro Family Pledge — Brennan Foundation (US 501c3)
$5,000,000
55%
Castro Agro Operaciones — Grain Production and Export
Eduardo Castro Müller/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro Agro Operaciones — Grain Production and Export
$320,000,000
55%
Castro HQ — Buenos Aires
Eduardo Castro Müller/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro HQ — Buenos Aires
$8,500,000
55%
Castro Agro — Seed Variety IP and Trademarks
Eduardo Castro Müller/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro Agro — Seed Variety IP and Trademarks
$5,500,000
55%
Castro Estancia — Premium Cattle Stock
Eduardo Castro Müller/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro Estancia — Premium Cattle Stock
$6,500,000
55%
Castro Estancia La Esperanza
Eduardo Castro Müller/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro Estancia La Esperanza
$22,000,000
55%
Castro Pampas — Water Rights and Concessions
Eduardo Castro Müller/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro Pampas — Water Rights and Concessions
$2,800,000
55%
Castro UY — USD Cash (Uruguayan custodian)
Eduardo Castro Müller/Castro Agro Holding S.A./Castro-Brennan Family Office S.A./Castro UY — USD Cash (Uruguayan custodian)
$14,000,000
55%
Castro Holdings Panama S.A.
Eduardo Castro Müller/Castro Agro Holding S.A./Castro Holdings Panama S.A.
—
55%
Castro Agro Uruguay — Cross-Border Export Hub
Eduardo Castro Müller/Castro Agro Holding S.A./Castro Agro Uruguay S.A./Castro Agro Uruguay — Cross-Border Export Hub
$45,000,000
6.6%
Cooperativa Agraria Pampeana (minority interest)
Eduardo Castro Müller/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Cooperativa Agraria Pampeana (minority interest)
—
Mateo Castro Brennan · 15 terminal holdings
100%
Castro Punta del Este Yacht
Mateo Castro Brennan/Castro Punta del Este Yacht
$4,800,000
15%
Castro AR — Argentine Government Bonds
Mateo Castro Brennan/Castro Agro Holding S.A./Castro AR — Argentine Government Bonds
$12,000,000
15%
Castro AR — Listed Argentine Equity
Mateo Castro Brennan/Castro Agro Holding S.A./Castro AR — Listed Argentine Equity
$7,000,000
15%
Castro Art Collection
Mateo Castro Brennan/Castro Agro Holding S.A./Castro Art Collection
$8,000,000
15%
Castro Family Pledge — Brennan Foundation (US 501c3)
Mateo Castro Brennan/Castro Agro Holding S.A./Castro Family Pledge — Brennan Foundation (US 501c3)
$5,000,000
15%
Castro Agro Operaciones — Grain Production and Export
Mateo Castro Brennan/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro Agro Operaciones — Grain Production and Export
$320,000,000
15%
Castro HQ — Buenos Aires
Mateo Castro Brennan/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro HQ — Buenos Aires
$8,500,000
15%
Castro Agro — Seed Variety IP and Trademarks
Mateo Castro Brennan/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro Agro — Seed Variety IP and Trademarks
$5,500,000
15%
Castro Estancia — Premium Cattle Stock
Mateo Castro Brennan/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro Estancia — Premium Cattle Stock
$6,500,000
15%
Castro Estancia La Esperanza
Mateo Castro Brennan/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro Estancia La Esperanza
$22,000,000
15%
Castro Pampas — Water Rights and Concessions
Mateo Castro Brennan/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro Pampas — Water Rights and Concessions
$2,800,000
15%
Castro UY — USD Cash (Uruguayan custodian)
Mateo Castro Brennan/Castro Agro Holding S.A./Castro-Brennan Family Office S.A./Castro UY — USD Cash (Uruguayan custodian)
$14,000,000
15%
Castro Holdings Panama S.A.
Mateo Castro Brennan/Castro Agro Holding S.A./Castro Holdings Panama S.A.
—
15%
Castro Agro Uruguay — Cross-Border Export Hub
Mateo Castro Brennan/Castro Agro Holding S.A./Castro Agro Uruguay S.A./Castro Agro Uruguay — Cross-Border Export Hub
$45,000,000
1.8%
Cooperativa Agraria Pampeana (minority interest)
Mateo Castro Brennan/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Cooperativa Agraria Pampeana (minority interest)
—
Sofía Castro Brennan · 21 terminal holdings
100%
Castro US — Bond Portfolio
Sofía Castro Brennan/Castro Investments USA LLC/Castro US — Bond Portfolio
$22,000,000
100%
Castro — USD Cash (multiple custodians)
Sofía Castro Brennan/Castro Investments USA LLC/Castro — USD Cash (multiple custodians)
$8,500,000
100%
Castro US — PE Allocation
Sofía Castro Brennan/Castro Investments USA LLC/Castro US — PE Allocation
$12,000,000
100%
Castro Key Biscayne Investment Property
Sofía Castro Brennan/Castro Investments USA LLC/Castro Real Estate Florida LLC/Castro Key Biscayne Investment Property
$3,400,000
100%
Sofía's Miami Condo
Sofía Castro Brennan/Castro Investments USA LLC/Castro Real Estate Florida LLC/Sofía's Miami Condo
$7,800,000
100%
Castro US — Equity Portfolio (Charles Schwab)
Sofía Castro Brennan/Castro Investments USA LLC/Castro US — Equity Portfolio (Charles Schwab)
$38,000,000
100%
Brennan-Mitchell Trust — Investment Portfolio
Sofía Castro Brennan/Castro Investments USA LLC/Brennan-Mitchell Family Trust (Sofía branch)/Brennan-Mitchell Trust — Investment Portfolio
$18,000,000
15%
Castro AR — Argentine Government Bonds
Sofía Castro Brennan/Castro Agro Holding S.A./Castro AR — Argentine Government Bonds
$12,000,000
15%
Castro AR — Listed Argentine Equity
Sofía Castro Brennan/Castro Agro Holding S.A./Castro AR — Listed Argentine Equity
$7,000,000
15%
Castro Art Collection
Sofía Castro Brennan/Castro Agro Holding S.A./Castro Art Collection
$8,000,000
15%
Castro Family Pledge — Brennan Foundation (US 501c3)
Sofía Castro Brennan/Castro Agro Holding S.A./Castro Family Pledge — Brennan Foundation (US 501c3)
$5,000,000
15%
Castro Agro Operaciones — Grain Production and Export
Sofía Castro Brennan/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro Agro Operaciones — Grain Production and Export
$320,000,000
15%
Castro HQ — Buenos Aires
Sofía Castro Brennan/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro HQ — Buenos Aires
$8,500,000
15%
Castro Agro — Seed Variety IP and Trademarks
Sofía Castro Brennan/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro Agro — Seed Variety IP and Trademarks
$5,500,000
15%
Castro Estancia — Premium Cattle Stock
Sofía Castro Brennan/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro Estancia — Premium Cattle Stock
$6,500,000
15%
Castro Estancia La Esperanza
Sofía Castro Brennan/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro Estancia La Esperanza
$22,000,000
15%
Castro Pampas — Water Rights and Concessions
Sofía Castro Brennan/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro Pampas — Water Rights and Concessions
$2,800,000
15%
Castro UY — USD Cash (Uruguayan custodian)
Sofía Castro Brennan/Castro Agro Holding S.A./Castro-Brennan Family Office S.A./Castro UY — USD Cash (Uruguayan custodian)
$14,000,000
15%
Castro Holdings Panama S.A.
Sofía Castro Brennan/Castro Agro Holding S.A./Castro Holdings Panama S.A.
—
15%
Castro Agro Uruguay — Cross-Border Export Hub
Sofía Castro Brennan/Castro Agro Holding S.A./Castro Agro Uruguay S.A./Castro Agro Uruguay — Cross-Border Export Hub
$45,000,000
1.8%
Cooperativa Agraria Pampeana (minority interest)
Sofía Castro Brennan/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Cooperativa Agraria Pampeana (minority interest)
—
Valentina Castro Brennan · 14 terminal holdings
15%
Castro AR — Argentine Government Bonds
Valentina Castro Brennan/Castro Agro Holding S.A./Castro AR — Argentine Government Bonds
$12,000,000
15%
Castro AR — Listed Argentine Equity
Valentina Castro Brennan/Castro Agro Holding S.A./Castro AR — Listed Argentine Equity
$7,000,000
15%
Castro Art Collection
Valentina Castro Brennan/Castro Agro Holding S.A./Castro Art Collection
$8,000,000
15%
Castro Family Pledge — Brennan Foundation (US 501c3)
Valentina Castro Brennan/Castro Agro Holding S.A./Castro Family Pledge — Brennan Foundation (US 501c3)
$5,000,000
15%
Castro Agro Operaciones — Grain Production and Export
Valentina Castro Brennan/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro Agro Operaciones — Grain Production and Export
$320,000,000
15%
Castro HQ — Buenos Aires
Valentina Castro Brennan/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro HQ — Buenos Aires
$8,500,000
15%
Castro Agro — Seed Variety IP and Trademarks
Valentina Castro Brennan/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro Agro — Seed Variety IP and Trademarks
$5,500,000
15%
Castro Estancia — Premium Cattle Stock
Valentina Castro Brennan/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro Estancia — Premium Cattle Stock
$6,500,000
15%
Castro Estancia La Esperanza
Valentina Castro Brennan/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro Estancia La Esperanza
$22,000,000
15%
Castro Pampas — Water Rights and Concessions
Valentina Castro Brennan/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Castro Pampas — Water Rights and Concessions
$2,800,000
15%
Castro UY — USD Cash (Uruguayan custodian)
Valentina Castro Brennan/Castro Agro Holding S.A./Castro-Brennan Family Office S.A./Castro UY — USD Cash (Uruguayan custodian)
$14,000,000
15%
Castro Holdings Panama S.A.
Valentina Castro Brennan/Castro Agro Holding S.A./Castro Holdings Panama S.A.
—
15%
Castro Agro Uruguay — Cross-Border Export Hub
Valentina Castro Brennan/Castro Agro Holding S.A./Castro Agro Uruguay S.A./Castro Agro Uruguay — Cross-Border Export Hub
$45,000,000
1.8%
Cooperativa Agraria Pampeana (minority interest)
Valentina Castro Brennan/Castro Agro Holding S.A./Castro Agro Operaciones S.A./Cooperativa Agraria Pampeana (minority interest)
—