Warren Buffett's successor just spent his entire $15 million salary on Berkshire stock — and plans to do that every year

Source: Business Insider

Greg Abel will make $25 million in cash in his new role. Nati Harnik/AP, FileBrendan McDermid/REUTERSGreg Abel has pledged to spend his entire salary each year on Berkshire Hathaway shares. Abel succeeded Warren Buffett as Berkshire's CEO at the start of January.