1886
American Water is established in Pennsylvania as American Waterworks and Guarantee Company (AWW&G).
 

1914
AWW&G becomes American Water Works and Electric (AWW&E), quickly growing into one of the leading public utility holding companies in the United States.
 

1947
American Water becomes a public company under John Ware and the ticker symbol AWK, starting with a base of 663,000 customers. Headquarters moved to Voorhees, NJ.
 

1965
American Water is named to Fortune’s list of the 50 largest public utility companies in the United States.
 

1994
American Water joins Standard & Poor’s MidCap 400 Index.
 

2003
American Water purchased by RWE Group (divestiture plans begin in 2 years).
 

2005
RWE announces plans to divest American Water.
 

2008
In the largest utility IPO in the United States history, American Water divests from RWE’s outside ownership and joins the New York Stock Exchange.
 

2009
American Water gains full independence after its final stock offering.
 

2014
American Water becomes a member of the Dow Jones Utility Average, which represents to stock performance of 15 large, well known U.S. companies within the utilities sector. American Water is the only water utility to ever be part of the index.
 

2016
American Water becomes part of Standard & Poor’s 500 Index – the only water utility included in the index.
 

2018
American Water rings The Opening Bell to celebrate its 10-year return to the New York Stock Exchange (NYSE). Headquarters moved to Camden, NJ.
 

2023
American Water maintains its 15-year presence on the New York Stock Exchange and remains the largest investor-owned water and wastewater utility in the U.S. NYSE: AWK is one of the highest valued utility stocks on the NYSE.