While investors mostly get a stale view of Buffett's transactions through Berkshire Hathaway's (BRK-A) 13-F filings, they got a rare, real-time glimpse in his purchases with a Form 4 filing.

Berkshire Hathaway owned 690,106 shares in Ulta Beauty (NASDAQ:ULTA) as of Jun. 30, according to a regulatory 13-F filing on ...

Typically, we only learn about Berkshire's stock portfolio activity when the company reports its quarterly 13-F filing to the SEC, which comes 45 days after the end of each quarter. (The latest ...