[5] In May & June 2013, the firm also hired Goldman Sachs Group Inc.'s co-head of U.S. leveraged finance capital markets Tom Stein, former Barclays head of retail investment banking and vice chairman Andrew Taussig, as well as managing directors Spencer Hart, Matthew Pilla, Ken Harada and Ryan Mash.

[7] In March 2014, Guggenheim Securities hired Eric Mandl as a Senior Managing Director focusing on Technology, Media and Telecom Investment Banking.

[13] In October 2018, Guggenheim Securities was named the lead financial adviser to Red Hat in connection with its $34 billion sale to IBM.

[16] Also in September 2019, Guggenheim hired former Deputy United States Attorney and Director of the Division of Enforcement of the Securities and Exchange Commission Robert S. Khuzami as a Managing Partner and Chief Legal Officer.

In the private sector Khuzami was a partner at Kirkland & Ellis LLP and worked at Deutsche Bank AG, including as General Counsel for the Americas.

[22] In 2012, Guggenheim affiliates acquired the US annuities business of Canadian insurers Industrial Alliance and Sun Life Financial.

[25] Guggenheim Securities expanded its investment banking business in July 2019 in Chicago with the hiring of two senior bankers from William Blair's technology group, James Suprenant and Scott Stevens.