Vanguard
https://www.investopedia.com/articles/insights/060716/top-3-netflix-shareholders-nflx.asp
Top Institutional Shareholders
In addition to corporate insiders, NFLX shares are owned in substantial quantities by institutional investors and mutual funds. In early 2019, non-mutual fund institutional ownership was dominated by The Vanguard Group which owned more than 30.7 million shares, or 7.04% of the company. Capital Research Global Investors owned more than 25.7 million shares or 5.88% of the company. Fidelity Management and Research owned 25.0 million shares (5.72%) and Blackrock claims 18.4 million shares (4.21%). In the mutual fund space, American Funds Growth Fund of America has 18.6 million shares (4.26%), the Vanguard Total Stock Market Index fund owns 11.1 million shares (2.54%), and the Fidelity Contrafund has a 2.11% stake in the company with 9.2 million shares held.