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S&T Bancorp Inc is a financial holding company providing a full range of financial services to individuals and businesses in Pennsylvania and Ohio, including retail and commercial banking products, cash management, and trust and brokerage services. Through its subsidiary, it offers consumer, commercial, and small business banking services, including time and demand deposits, commercial and consumer loans, brokerage and trust services, and manages private investment accounts for individuals and institutions. The company earns revenue mainly from interest on loans and securities and fees for financial services, with net interest income as the principal source of revenue, and incurs expenses for deposits, funding sources, provision for credit losses, and operating costs.

Berkshire Hathaway is a holding company with a wide array of subsidiaries engaged in diverse activities. The firm's core business segment is insurance, run primarily through Geico, Berkshire Hathaway Reinsurance Group, and Berkshire Hathaway Primary Group. Berkshire has used the excess cash thrown off from its operations to acquire Burlington Northern Santa Fe (railroad), Berkshire Hathaway Energy (utilities and energy distributors), and the companies that make up its manufacturing, service, and retailing operations (which include Precision Castparts, Lubrizol, Clayton Homes, Marmon, and IMC/ISCAR). The conglomerate is unique in that it is run on a completely decentralized basis.