Alleghany 2021 Full Year Performance Highlights

Capital Allocation by Operation Alleghany Capital 1% 2012 PCT Homesite 1% 1% Parent PacificComp 2% CapSpecialty 4% RSUI 21% marketable securities(2 10% Alleghany Capital 12% 2021 Kentucky Trailer. 1% Piedmont <1% PCT Concord 1% 1% Parent marketable securities 16% (2) IPS 1% Wilbert 2% TransRe 61% W&W AFCO Steel 3% Re/Insurance 89% ($ in millions) Stockholders' Equity 6,404 Alleghany Parent Debt(1) Total Capital 699 7,103 Jazwares 3% CapSpecialty. 4% RSUI 18% TransRe 50% Re/Insurance 72% ($ in millions) Stockholders' Equity Alleghany Parent Debt (1) Total Capital 9,187 1,679 $ 10,866 (1) Excludes TransRe senior notes that mature in 2039 and debt at Alleghany Capital. (2) Includes partnerships, Alleghany Capital parent, Alleghany Properties, and other miscellaneous holdings, net of deferred compensation and deferred taxes. 6

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