FACTBOX — Key executives running Berkshire Hathaway's $1 trillion empire

Sept 18 (Reuters) — Warren Buffett stepped down as chairman of Berkshire Hathaway on Friday, handing the top role to his son Howard and completing a historic leadership handover that started with Greg Abel's appointment as CEO earlier this year. Investors will likely be keen on how the new leadership steers the $1 trillion-plus conglomerate. Here is a look at its major pillars: Greg Abel, CEO Buffett announced Abel's promotion at Berkshire's annual meeting, in May 2025. Many Berkshire managers describe the 64-year-old as knowledgeable and compassionate, with a capacity to listen. Abel, known for his hands-on style, came into the Berkshire fold with its acquisition of MidAmerican Energy in 2000. He turned the unit, since renamed as Berkshire Hathaway Energy, into one of the largest power providers in central and western United States. After helming that business as its CEO for a decade, Abel was appointed vice chairman in 2018 to oversee Berkshire's non-insurance businesses — railroad; chemical, energy and industrial companies; and businesses such as Fruit of the Loom and See's Candies. He is believed to be a billionaire, selling his 1% stake in Berkshire Hathaway Energy to Berkshir