OpCo 13F-HR
13Fs filed by operating companies rather than investment managers: the stocks held by corporate treasuries, insurers and holding companies. For investment managers, see Newest 13Fs.
conglomerate
Each company's latest 13F, with its top holdings.
Latest book per operating company we track. How their holdings changed last quarter is on OpCo 13F-HR changes. Superinvestor amendments stay on Newest 13Fs. Berkshire, Markel, and dual-identity names stay on Featured managers. Values as filed. Not investment advice.