By Ellen Chang Warren Buffett’s Berkshire Hathaway limited buybacks to $1.1 billion during the third quarter. Billionaire Warren Bufffett’s Berkshire Hathaway (BRK.A) – Get Berkshire Hathaway Inc. Report reported its operating profit increased by 20% during the third quarter while buybacks were limited to $1.1 billion, below its 2021 level. Apple (AAPL) – Get Apple Inc. Report remains its top stock holding, followed by Bank of America (BAC) – Get Bank of America Corporation Report with oil giant Chevron (CVX) – Get Chevron Corporation Report as its third largest holding in its portfolio of sto…