Vanguard "owns" a huge chunk of everything. Vanguard runs index funds, most peoples retirements are vanguard buying small shares of an index fund representing all the big companies on the stock exchange
Also they simultaneously hold the ownership rights as well as equivalent owenrship liabilities, so they own shit squat in net terms (excpet maybe their management fees).
I don’t understand why customer owned co-ops aren’t ubiquitous. Vanguard is amazing- low fees, and great services- they beat all of the competition. I had to call their support line today and it was the most professional customer service I’ve ever experienced.