Asset Management Advisors, LLC

Asset Management Advisors' $181M Q2 2026 13F is a tightly concentrated, high-quality portfolio built on selective conviction rather than broad diversification. Berkshire Hathaway B commands 31% of assets, followed by Micron, Brookfield Corp, Williams Companies, Alphabet, NextEra Energy, and Apple, which together account for three-quarters of the book. The manager exited two positions outright — Millrose Properties and Exxon Mobil — while trimming nine names, yet used the proceeds to increase the very largest holdings that had already outperformed. This is a portfolio expressing unusual confidence in its core thesis: blue-chip B shares, semiconductor capital equipment, regulated infrastructure, and large-cap Big Tech.