Warren Buffett’s Berkshire Hathaway Inc won’t have to swiftly disclose its rapid-fire sales of Bank of America Corp (BofA) stock too much longer. That is, if he keeps whittling the investment.

A fresh round of disposals disclosed late on Friday trimmed the conglomerate’s stake in the bank down to 11.4%. So long as Berkshire holds more than 10%, US rules require it to reveal transactions within a few days. But if the company holds less, it may wait weeks to update the public - typically giving snapshots after every quarter.

That would help quiet the drama weighing on the BofA’s share price since mid-July, when Buffett - a long-time backer of chief executive officer Brian Moynihan - embarked on a selling spree without giving a reason. Berkshire has since reaped a total of US$6.20 billion .

In the disposals announced on Friday, Berkshire sold about 21 million shares for US$848 million from Aug 28 through 30.

Buffett, 94, began building the investment in the BofA with a US$5 billion deal in 2011 for preferred stock and warrants. His Berkshire eventually became - and remains - the bank’s biggest stockholder, with a stake worth about US$36 billion, based on Friday’s closing price.

  - Bloomberg