reverted to "McKesson" in 2001. McKesson has increased its market in medical technology through acquisitions, including Per Se Technologies and RelayHealth in 2006 and Practice Partner in 2007. In 2010, McKesson acquired the oncology and physician services company US Oncology, Inc. for $2.16 billion, which was integrated into the McKesson Specialty Health business. On June 24, 2013, The Wall Street Journal reported that McKesson Chairman and CEO John Hammergren's pension benefits of $159 million had set a record for "the largest pension on file for a current executive of a public company, and almost certainly the largest ever in corporate America". In addition to its offices throughout North America, McKesson also has international offices in Australia, Ireland, France, the Netherlands, and the United Kingdom. Today, McKesson is one of the oldest operating businesses in the United States. In 2014, McKesson acquired Celesio to become one of the world's largest health care companies, with over $179 billion in annual revenue. In June 2016, McKesson announced plans to merge its IT business with Change Healthcare. In 2017, McKesson was involved in a number of lawsuits against the state of Arkansas over the supply of vecuronium bromide. McKesson was under contract by Pfizer not to sell to any correctional facility that authorized and carried out Capital punishment. In November 2018, the company announced it would relocate its headquarters from San Francisco to Irving, Texas in April 2019. On April 1, 2019, the company officially moved their headquarters to Irving, Texas. Also that month, Brian Tyler took over as CEO of the company. In February 2020, McKesson Corp announced that it would part ways with Change Healthcare. McKesson would give up its three seats on Change's board of directors, and as an entity will no longer own any portion of Change. In August 2020 during the COVID-19 pandemic, the CDC and HHS selected McKesson as the U.S. government's centralized distributor for Covid-19 vaccine doses and ancillary supply kits under Operation Warp Speed. As of May 5, 2022, McKesson had distributed over 380 million vaccine doses and assembled supply kits to support over 1.2 billion vaccines doses as of July 31, 2021. See Covid-19 Centralized Vaccine Distributor. Finances For the fiscal year 2018, McKesson reported earnings of US$67 million, with an annual revenue of US$208.357 billion, an increase of 5.0% over the previous fiscal cycle. McKesson's shares traded at over $142 per share, and its