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Annie Callahan

Annie Callahan

Investment Consultant

AssetMark Team

About Annie

Annie Callahan is an investment consultant with William Blair Custom HNW, where she is responsible for cultivating new and existing relationships with independent financial advisors. She works closely with advisors and end-clients to provide thoughtful investment analysis and objectives-based portfolio strategies that complement financial plans. Before William Blair, Annie worked in Institutional Equity Sales at Stephens Inc. She graduated with a degree in finance from Boston College.

About William Blair

William Blair is a premier global partnership with expertise in investment banking, investment management, and private wealth management. We provide advisory services, strategies, and solutions to meet our clients’ evolving needs. As an independent and employee-owned firm, together with our strategic partners, we operate in more than 30 offices worldwide.*

  • 1935

    Year William Blair was founded

  • 1,950+

    Employees worldwide

  • 154 billion+

    Client assets

  • 90+ Years

    Independent and employee-owned

  • 30+

    Offices worldwide*

  • 650+

    Companies under coverage

As of December 31, 2025
*Includes strategic partnerships with Allier Capital, BDA Partners, and Poalim Equity.

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This content is for informational and educational purposes only and not intended as investment advice or a recommendation to buy or sell any security. Investment advice and recommendations can be provided only after careful consideration of an investor's objectives, guidelines, and restrictions.

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