Yet, he was gratified when the company announced share buybacks and new stakes in Verizon Communications Inc VZ.Nand Chevron Corp CVX.N. By John McCrank and Jonathan Stempel NEW YORK, May 3 (Reuters) - Some Berkshire Hathaway shareholders are grappling with how Warren Buffett's conglomerate will handle a thicket of post-pandemic challenges, including looming inflation, a dearth of acquisitions and demands for more environmental and social disclosures. With unprecedented government stimulus and rock bottom interest rates threatening to lift inflation, Berkshire may be too big to pivot heavily to companies that could benefit from rising consumer prices, Smead said.