Editing State Street Corporation (section)

===20th century===
State Street and National Union merged in October 1925.<ref name="best" /> The merged bank took the State Street name, but National Union was the nominal survivor, and it operated under National Union's charter, thus giving the current entity its rank among the oldest banks in the United States.

The company merged with Second National Bank in 1955 and with the Rockland-Atlas National Bank in 1961.<ref>{{Cite web|url=http://www.fundinguniverse.com/company-histories/state-street-corporation-history/|title=History of State Street Corporation |publisher=FundingUniverse|language=en|access-date=2018-05-22}}</ref><ref>{{cite news |url=https://www.nytimes.com/1960/12/21/archives/two-big-banks-in-boston-slate-union-into-2d-largest-in-area.html |title=Two Big Banks in Boston Slate Union Into 2d Largest in Area |work=[[The New York Times]] |date=December 21, 1960}}</ref>

In 1966, the company completed construction of the [[State Street Bank Building]], a new headquarters building, the first high-rise office tower in downtown Boston.

In 1972, the company opened its first international office in [[Munich]].

In 1973, as a 50/50 [[joint venture]] with [[DST Systems]], the company formed Boston Financial Data Services, a provider of shareholder record-keeping, intermediary and investor services, and regulatory compliance. More than 100 top staff from [[IBM]] were hired by State Street as it set about implementing IBM [[mainframe computer]] systems.

In 1975, William Edgerly became president and chief executive officer of the bank and shifted the company's strategy from commercial banking to investments and securities processing.<ref name="History" />

During the 1980s and 1990s, the company opened offices in [[Montreal]], [[Toronto]], [[Dublin]], [[London]], [[Paris]], [[Dubai]], [[Sydney]], [[Wellington]], [[Hong Kong]], and [[Tokyo]].<ref name="History" />

By 1992, most of State Street's revenue came from fees for holding securities, settling trades, keeping records, and performing accounting.<ref name="History" /> In 1994, the company formed [[State Street Global Advisors]], a global asset management business.

In 1995, State Street acquired Investors Fiduciary Trust of [[Kansas City]] for $162 million from DST Systems and Kemper Financial Services.<ref>{{cite web|url=https://www.sec.gov/Archives/edgar/data/61448/000095014701500531/0000950147-01-500531.txt|title=Semi-Annual Report|date=December 31, 2000|website=SEC.gov|quote=State Street Kansas City ("SSKC") (formerly Investors Fiduciary Trust Company) and State Street Boston ("SSB")}}</ref><ref>{{cite press release|url=https://www.businesswire.com/news/home/20050131005824/en/State-Street-Celebrates-10th-Anniversary-Kansas-City|title=State Street Celebrates 10th Anniversary of its Kansas City Operations|publisher=[[Business Wire]]|date=January 31, 2005}}</ref> In 1996, Bank of New York acquired the unit investment trust servicing business of Investors Fiduciary Trust Co., Kansas City, Mo.<ref>{{cite news|url=https://www.nytimes.com/1996/02/28/business/company-briefs-077798.html|title=Company briefs|date=February 28, 1996|newspaper=[[The New York Times]]}}</ref>

In 1997, State Street setup its office in Singapore.<ref>{{cite web |title=State Street in Singapore |url=https://www.statestreet.com/about/office-locations/singapore.html |website=State Street Corporation |access-date=26 May 2021}}</ref>

In 1999, State Street sold its retail and commercial banking businesses to [[Citizens Financial Group]].<ref>{{Cite news|url=https://www.nytimes.com/1999/05/07/business/company-news-citizens-is-buying-state-street-s-retail-bank-business.html|title=Company News; Citizens Is Buying State Street's Retail Bank Business|agency=Reuters|date=1999-05-07|work=The New York Times|access-date=2019-12-11|language=en-US|issn=0362-4331}}</ref>