State Street is owned by its own shareholders as a publicly traded company on the New York Stock Exchange under the ticker STT, and no single person or firm controls it.
State Street Corporation is a multinational financial services and bank holding company best known as a custody bank, safeguarding and administering trillions of dollars in assets for institutional clients worldwide.
Its roots trace back to Union Bank, chartered in Boston in 1792, and the company grew over more than two centuries into one of the largest custody banks and asset servicers on earth.
So how does a bank chartered in the eighteenth century end up safeguarding trillions of dollars for pension funds and governments today, and who actually controls it now?
This article looks at State Street ownership structure, its largest shareholders, its leadership, its history of acquisitions, how much the company is worth, its core businesses, and how to contact State Street.
So let us get started.
Table of Contents
Who Owns State Street
State Street is a publicly traded company, meaning its ownership is spread across institutional investors, individual shareholders and company insiders rather than held by any single owner.
Visit the official State Street website to see the full range of custody, asset servicing and investment management services the company offers.
No founding family or individual controls State Street today, since the company has operated as a widely held public corporation for decades.
The largest shareholders are big asset managers such as Vanguard and BlackRock, alongside tens of thousands of individual retail investors who buy STT shares on the open market.
| Company Overview | Details |
| Company name | State Street Corporation |
| Ownership | Publicly traded, no controlling shareholder |
| Parent company | None, independent public company |
| Founded | 1792, as Union Bank |
| Modern name adopted | 1925 |
| CEO | Ronald P. O’Hanley |
| Headquarters | Boston, Massachusetts |
| Ownership type | Public |
| Stock ticker | NYSE: STT |
Is State Street Publicly Traded or Privately Owned
State Street is publicly traded on the New York Stock Exchange under the ticker symbol STT.
The company has operated as a public corporation for decades, and its shares are bought and sold every trading day by institutions and individual investors around the world.
As of 2026 the company carried a market capitalization of approximately 36.8 billion dollars, based on a share price near 130 dollars.
Institutional investors collectively own the majority of State Street stock, but no bank, holding company or private equity firm controls the business.
Who Are the Largest Shareholders of State Street
The Vanguard Group is the largest shareholder of State Street, holding roughly 13.2 percent of outstanding shares, worth close to 4.85 billion dollars.
BlackRock Institutional Trust Company holds the next largest position at approximately 5.3 percent, followed by State Street’s own investment management arm holding roughly 4.8 percent through client funds it manages.
Fidelity Management and Research holds around 3 percent, with Harris Associates rounding out the list of the largest disclosed institutional shareholders at roughly 2.7 percent.
State Street’s shareholder base is led mainly by large passive institutions that tend to hold their positions through market cycles rather than trade frequently.
Readers curious about the asset management division this company operates can read our guide on who owns State Street Global Advisors.
Who Is the CEO of State Street
Ronald P. O’Hanley serves as Chairman and Chief Executive Officer of State Street Corporation.
O’Hanley has overseen major strategic moves during his tenure, including the ongoing growth of the company’s asset servicing business and its 2025 rebrand of the investment management division.
Yie-Hsin Hung leads State Street Investment Management, formerly State Street Global Advisors, reporting up to O’Hanley within the broader corporate structure.
O’Hanley does not personally control the company, his role is to run daily operations and long term strategy on behalf of the shareholders who own State Street stock.
Who Founded State Street
State Street traces its origins to Union Bank, which received a charter in Boston in 1792, signed by Massachusetts Governor John Hancock.
The bank grew and merged with several other Boston financial institutions over the following century, eventually merging with National Union Bank in October 1925.
That 1925 merger is when the combined bank formally adopted the State Street name it still carries today.
Because the company evolved through mergers over more than two centuries rather than a single founder’s vision, no individual founder holds a personal ownership legacy in the business today.
How Has State Street Ownership Changed Over Time
State Street grew mainly through a long series of acquisitions that built out its custody and asset servicing business rather than through changes in who controls the parent company.
Major deals included acquiring Deutsche Bank’s securities services division in 2003 for 1.5 billion dollars and Investors Bank and Trust in 2007 for 4.5 billion dollars.
The company continued expanding with the 2016 purchase of General Electric’s asset management business and the 2018 acquisition of Charles River Development for roughly 2.6 billion dollars, adding investment management software to its offerings.
A planned 3.5 billion dollar acquisition of Brown Brothers Harriman’s investor services business was announced in 2021 but later withdrawn, showing that not every attempted deal has closed.
Custody and Fund Administration
Formerly Global Advisors
Trading and Research
Vanguard, BlackRock and Individual Investors
Major State Street Milestones
The company’s earliest predecessor is chartered in Boston.
A merger with National Union Bank creates the modern State Street.
State Street launches the S&P 500 SPDR, the first US exchange traded fund.
State Street expands its custody business for 4.5 billion dollars.
State Street adds investment management software to its business.
State Street Investment Management passes a major assets under management milestone.
How Much Is State Street Worth
State Street carried a market capitalization of approximately 36.8 billion dollars in 2026, based on its NYSE listed share price of roughly 130 dollars.
The company is one of the largest custody banks in the world, safeguarding and administering assets on behalf of pension funds, sovereign wealth funds, mutual funds and other institutional clients globally.
Its investment management division, now State Street Investment Management, separately crossed 5 trillion dollars in client assets under management in 2026.
| Financial Metric | Value |
| Market capitalization | Approximately 36.8 billion dollars, 2026 |
| Largest shareholder | The Vanguard Group, roughly 13.2 percent |
| Investment management AUM | Over 5 trillion dollars, 2026 |
| Founded | 1792 |
What Services Does State Street Offer
State Street’s Global Services division provides custody, fund accounting and administration for institutional investors, making it one of the largest custody banks in the world.
Its Global Markets division offers trading, foreign exchange and research services, primarily for institutional clients rather than everyday retail investors.
State Street Investment Management, its asset management arm, manages the widely known SPDR family of exchange traded funds alongside institutional mandates.
Readers who want to compare this institutional focused business with a retail focused brokerage can see our guide on who owns Charles Schwab.
How Do You Contact State Street
State Street’s corporate headquarters can be reached at 617 786 3000 for general inquiries.
Because State Street primarily serves institutional clients rather than individual retail customers, most account related questions are handled through dedicated relationship managers rather than a general public hotline.
Individual investors with questions about SPDR ETFs should contact their brokerage directly, since those shares trade like any other exchange listed security.
| Support Type | Contact Information |
| Corporate headquarters | 617 786 3000 |
| Institutional clients | Contact your relationship manager |
| Address | One Congress Street, Boston, MA 02114 |
| Website | statestreet.com |
Where Is State Street Headquartered
State Street is headquartered at One Congress Street in Boston, Massachusetts, the same city where its earliest predecessor bank was chartered in 1792.
The company also operates major offices across the United States, Europe and Asia to support its global custody and asset servicing clients.
Is State Street a Good Financial Company
State Street is widely regarded as one of the most important custody banks in the global financial system, safeguarding trillions of dollars for institutional clients.
Its long history, deep institutional relationships and role inventing the modern ETF give it strong credibility across both custody banking and asset management.
On the downside, State Street’s institutional focus means everyday retail investors interact with the company mainly indirectly, through SPDR ETFs or their own employer retirement plans.
Overall, State Street remains a foundational player in global finance, even if most everyday investors know it best through its SPDR ETF brand rather than its custody business.
Frequently Asked Questions About State Street
Who owns State Street
State Street is publicly owned by its shareholders, led by institutional investors such as Vanguard and BlackRock.
Who is the CEO of State Street
Ronald P. O’Hanley serves as Chairman and CEO of State Street Corporation.
Is State Street publicly traded
Yes, State Street trades on the New York Stock Exchange under the ticker symbol STT.
Is State Street Global Advisors the same as State Street
No, State Street Global Advisors, now called State Street Investment Management, is the asset management division owned by the parent company, State Street Corporation.
Who founded State Street
State Street traces back to Union Bank, chartered in Boston in 1792, and adopted its current name after a 1925 merger.
How much is State Street worth
State Street carried a market capitalization of approximately 36.8 billion dollars in 2026.
I am Jack Neel, a mechanical engineer, researcher, and writer. I created this website to share my knowledge about different brands and products with you. I research the manufacturers behind the brands and provide you with the information you need to make smart buying decisions.