In 1978 Weisel became chief executive of the firm and prompted the departure of his co-founders Sandy Robertson and Robert Colman.
[5] Montgomery Securities was behind numerous initial public offerings during the rise of tech stocks in the 1980s and 90s, including AMGen in 1983, Micron Technologies in 1984, and Yahoo!
[6] The firm was one of four investment banks that, as a group, were referred to as the “Four Horsemen,” due to their prominence in the underwriting of the IPOs of many of the most successful companies in Silicon Valley at the time.
The firm closed its first year of business with revenue of $186 million, completing $23 billion in transactions, including advising Yahoo!
Weisel has been active in professional sports as an investor, board member, manager, and participant for most of his career.
[15] In April 2018, Weisel was inducted in the US Ski and Snowboard Hall of Fame at a ceremony in Squaw Valley, California.
[17] As chairman, Weisel reorganized and restructured the foundation similar to the USSA, revamping the organization's board and funding sources.
In a 2002 article, Armstrong credited Weisel for founding and investing in the team in its early stages, before its championship wins.
Tailwind Sports were the owners of the USPS team for the first five of Armstrong's Tour de France wins.
In 2010 Landis filed a lawsuit against Weisel, Lance Armstrong, Johan Bruyneel, Bill Stapleton, Barton Knaggs, Tailwind Sports, and Capital Sports and Entertainment under the False Claims Act, alleging that the defendants had defrauded the federal government.
A federal suit was filed in 2013, but the government declined to name Weisel, Knaggs, Stapleton, and Capital Sports and Entertainment as defendants.
[25] He has gifted pieces to the SFMOMA and NYMOMA from his personal collection including works by Mark Grotjahn, Wayne Thiebaud, Richard Serra, Andreas Gursky.
Barnes spent 25 years in the finance industry, and currently serves on the board of the de Young Museum of Fine Arts.
[32] In 2003 Richard L. Brandt wrote a biography of Weisel, Capital Instincts: Life As an Entrepreneur, Financier, and Athlete.