Subject: Re: FYI, buybacks
I seem to think its in a buyback blackout period 10 days before the meeting

According to Google:
Berkshire Hathaway does not appear to follow a strict, public-facing blackout period for stock buybacks, such as the common "two weeks before quarter-end" rule. Instead, the company operates under a policy that allows for repurchases to be made at any time management believes the share price is below its intrinsic value, conservatively determined.