BRK-A

BRK-A has more than one share class and the free filings carry no per-class share count — the same figure (1,643,456) is reported against every class. A discounted cash flow divides by that number to reach a value per share, so running one here would produce a confident answer off by roughly the ratio between the classes. The company's cash flows are on its financials page; the per-share step is the part we cannot do honestly.