Private, see

So we know we can't buy shares in a private company, that only limited members can invest.
The company structure, though, is similar

• Chairman of Cargill is Gregory R Page, CEO and President is Dave MacLennan
• Cargill has fifty seven and a half billion dollars in assets
• Market value of Koch Industries places it among the largest family-owned companies in the world
• Albertsons has equity of $12.4 billion
• Dell shareholders voted to turn the company private
• Pricewaterhousecoopers securities
• Deloitte share price
• Mars had revenue in 2014 of $33 billion
• Employee-owned grocery chain Publix Super Markets pays dividends
• A warrant for Bechtel  
• C&S Wholesale Grocers derivatives
• Ernst & Young talk debentures, call and put options
• Reyes Holdings has 10,000-25,000 employees 
• H.E. Butt Grocery liabilities 
• Pilot Flying J bonds 
• Enterprise Holdings fund
• Cox Enterprises trust
• Southern Glazer's Wine & Spirits Business Partner eXchange
• Cumberland Gulf Group index