Largest shareholders include Vanguard Group Inc, Primecap Management Co/ca/, BlackRock Inc., State Street Corp, VTSMX - Vanguard Total Stock Market Index Fund Investor Shares, VPMCX - Vanguard PRIMECAP Fund Investor Shares, Lombard Odier Asset Management (USA) Corp, Renaissance Technologies Llc, VFINX - Vanguard 500 ...