AMI Asset Management is a Los Angeles-based registered investment advisor with approximately $1.6 billion* in assets under management.  The firm manages seven investment strategies including U.S. Large Capitalization Growth Equity, U.S. Small Capitalization Growth Equity, U.S. Small-Mid Capitalization Growth Equity, U.S Large Cap Equity Income, Taxable Fixed Income, Tax-Exempt Fixed Income and High-Yield Fixed Income. The management of the equity strategies and fixed income strategies are independent of each another. AMI is employee owned. 


Firm History


  • 1975:  Bill Tanner co-founds a business management accounting firm in Los Angeles which focuses on managing the business affairs of individuals in the entertainment business.   During his time at the accounting firm, Mr. Tanner develops a unique form of a GARP strategy which focuses on investing in companies with recurring business models.


  • 1994: AMI Asset Management Corporation, a registered investment advisor, is formed by Mr. Tanner and Peter Mainstain. 


  • 1998: Mr. Tanner begins managing large cap growth portfolios on behalf of his clients.


  • 2000:  Mr. Tanner is increasingly being called upon by his clients to manage their investment portfolios leading him to step away from managing the day-to-day business of the accounting firm to focus his attention on AMI.  Matt Humiston is hired to help formalize the business structure and co-manage the portfolio.  Asset growth accelerates.


  • 2003: AMI elects to outsource the management of all of their clients’ fixed income portfolios to a local sub-advisor.


  • 2005:  Chris Sessing is hired from Crowell, Weedon & Co. to co-manage the equity portfolio with Mr. Tanner and Mr. Humiston.  New asset growth moves away from referrals from the accounting firm, and more towards relationships of the firm's partners and client referrals.


  • 2008: AMI launches a second equity strategy, AMI Small Cap Growth Equity, which is managed in an identical fashion as the large cap growth strategy but focuses on investing in domestic firms with a market capitalization of between $100 million and $3 billion. 


  • 2009: The firm elects to bring all of the fixed income assets in-house.


  • 2012: Matt Dorband is hired to lead the institutional sales and marketing efforts.  Institutional asset growth accelerates.


  • 2013: The firm's assets under management surpass $1 billion.  AMI starts a third equity strategy, AMI SMID Cap Growth Equity, which focuses on investing in domestic companies with a market capitalization between $100 million and $10 billion.


  • 2015: With the hiring of Senior Equity Analyst, Andrew Zamfotis, AMI expands its equity research team


  • 2016: Equity Analyst, Richard Schimobor, is hired to join the firm's equity research team. Rob Knowles joins the firm as Senior VP of Institutional Markets, increasing institutional sales & marketing efforts.


  • 2017: Andrew Zamfotis is promoted to Portfolio Manager.


*As of December 31, 2018

Our Team