Go to OCZ's website Investor page. Look in Regulatory Info and click on SEC Filings. You will find an amended Prospectus file pursuant to rule 424(b)(5) dated Feb 9, 2012 which has the shares o/s following the offering. On page S-7, shares o/s are 65.8 mil shares (67.5 mil if underwriters' over-allotment is exercised.)
Do you have a link to any sites that list current O/S and short information? I couldn't find anything in the recent company filings. The only form I found showed the O/S before the offering. My short interest site is always about 2 weeks behind.