Seller of ChoiceNarrow moat

Berkshire is the seller's buyer of choice, and that standing translates directly into better deals. When a family that has built something precious wants to sell it to someone who will cherish it rather than strip it for parts, Berkshire is very often the only call they make — which means it can acquire wonderful businesses without the bidding wars that drive up prices, and without competing against the whole world for every deal. Deal flow available to no one else is a quiet but powerful edge in the business of buying businesses.

The advantage compounds on itself. Each business Berkshire buys and treats well becomes a testament other sellers notice, so the reputation that generates the deal flow is continually renewed by the deals themselves. Owners talk to owners; a founder considering a sale hears from peers that Berkshire kept its word, and picks up the phone. This word-of-mouth pipeline is cheaper and better than any investment bank's auction, and it is closed to buyers without the same track record.

The fragility is that being the seller's first call was, for decades, inseparable from Buffett personally — sellers wanted to shake his hand and hear his promise. The institution inherits the reputation, but whether a founder still picks Berkshire first when the man who embodied it is gone is a genuine question. The seller-of-choice advantage is real and valuable, but it rests on a trust that must now be sustained by an institution rather than radiated by a single, famous individual — Buffett stepped back to chairman at end-2025¹.