News Release

Artio Global Investors Inc.

Artio Global Investors Inc. Announces May Month-End Assets Under Management

New York – (BUSINESS WIRE) – June 12, 2012 – Artio Global Investors Inc. (NYSE: ART) today reported preliminary month-end assets under management of $21.8 billion as of May 31, 2012, compared to $24.9 billion as of April 30, 2012.

About Us

Artio Global Investors Inc. is the indirect holding company of Artio Global Management LLC (“Artio Global”), a registered investment adviser that actively invests in global equity and fixed income markets, primarily for institutional and intermediary clients. Headquartered in New York, Artio Global has offices in Los Angeles, Toronto, London and Sydney.

In addition to International Equity, Artio Global offers a select group of other equity and fixed income strategies, including Global Equity, a series of US Equity strategies, High Grade Fixed Income, High Yield and Local Emerging Markets Debt. Access to these strategies is offered through a variety of investment vehicles, including separate accounts, commingled funds and mutual funds.

For more information, please visit www.artioglobal.com.