This is true. It'll probably be left to Apple's discretion. (But it's not like many of these SEC filings actually say much more than boilerplate nonsense anyway). That said, given all the negative, head-scratching commentary that the Beats acquisition rumor has generated, it will be in Apple's interest to disclose more, rather than less, about this. I am guessing that Cook will disclose info, but perhaps not until his next analyst conference call (about 10 weeks away).