The DOJ FOIA Guide breaks down nicely each part o
Post# of 30028
" trade secrets " and " commercial or financial information "
" obtained from a person " [that is] privileged or " confidential. "
http://www.justice.gov/oip/foia-guide-2004-ed...xemption-4
I don't think this is that uncommon as I've seen it in other stocks, but others here would know.