JPMorgan Chase & Company (NYSE: JPM) is one of the world's leading financial services companies, providing consumer and commercial banking and credit services as well as financial asset management, investment banking, and insurance products.

It had a market capitalization of nearly $366 billion as of mid-2019, making it one of the world's largest companies.

JPM is listed on the Standard & Poor's 500 Index. This means that its shares are a constituent of some of the world's most popular index-tracking mutual funds and exchange-traded funds (ETFs).

In fact, JPMorgan Chase's five largest institutional shareholders are all major financial companies. Jointly, they own about a quarter of the banking behemoth.

Number six on the list, however, is Warren Buffett's Berkshire Hathaway Inc.

The largest individual shareholders are James Crown, who is a member of the board of directors, and Chief Executive Officer (CEO) James "Jamie" Dimon. 

The Vanguard Group

The Vanguard Group Inc. is JPMorgan's largest shareholder as of late November 2019, with 7.90% of total outstanding shares.

Vanguard is one of the largest investment management companies in the world, and it manages literally hundreds of mutual funds and ETFs. As of November 2019, Vanguard had more than $5.3 trillion in assets under management and had a client base of more than 20 million investors.

The Vanguard Total Stock Market Index Fund was the largest holder of JP Morgan shares within the company, with 2.54% of the total outstanding shares. 

BlackRock Inc.

BlackRock owns about 216.4 million shares of JPMorgan for an ownership stake of about 6.77% of the company.

BlackRock, which was founded in 1988 by Laurence D. Fink, is one of the largest asset managers in the world with $6.84 trillion in assets under management as of November 2019. 

State Street Corp.

State Street Corp. owns about 4.68% of JP Morgan's total outstanding stock as of late 2019, making it the third-largest holder.

State Street is a financial services firm with nearly $2.5 trillion assets in assets under management as of the end of 2018. The company offers investment management, trading, research, and related services, with mutual funds and ETFs among the firm's products. 

Capital World Investors

This financial services company is less well known than some of its peers, probably because it remains privately owned. Among its assets are about 78 million shares of JPMorgan Chase, an ownership stake of 2.44%.

A subsidiary of Capital Research and Management Co., Capital World Investors is based in Los Angeles. Its portfolio value was estimated at about $426 billion in late 2019.

FMR LLC

FMR LLC, better known as Fidelity Management and Research, owns 1.93% of JPMorgan Chase's total shares, making it the company's fourth-largest stockholder.

FMR offers brokerage, trade execution, and investment management services, including mutual funds. It had global assets under management estimated at $2.46 trillion in late 2019.

Berkshire Hathaway Inc.

Investor Warren Buffett's holding company owns nearly 60 million shares of JPMorgan Chase, for a total share of about 1.86%.

Berkshire Hathaway had a market capitalization of $540.6 billion in mid-November 2019. Its stock, which never splits, was priced at $331,526 on Nov. 8, 2019.

Largest Individual Stockholders

James Crown is the president of a private investment firm, Henry Crown and Co., and a director of JPMorgan Chase.

He is the largest individual shareholder of JPMorgan Chase, owning more than 12.4 million shares. Most of Crown's shares are owned by his investment firm or his wife or are held in trusts for his children.

The second-largest indirect individual shareholder is James Dimon, known as Jamie, the chairman, president, and CEO. Dimon owns 8.9 million shares of the company, some of it held within family trusts or owned by his wife.