Subject: Re: future buyback opportunity?
I think it would be best to avoid any off market behind the curtain deals between Buffett family foundations and Berkshire, unless the same deal was also available to other shareholders.

What if BRK shares were to fall soon after the repurchase? There would invariably be insinuations, and probably lawsuits, alleging insider knowledge.

If Berkshire was willing to make large share repurchases which the market could not support, then a reverse Dutch tender auction would be the best and most transparent option.