Atlantic Trust Advisors, Inc. (New York)


Atlantic Trust Advisors, Inc. is a large advisory firm based in New York. It manages $1.01 billion of regulatory assets for 324 client accounts. It has been registered with the SEC as an adviser since 2003 and has operated in the jurisdictions of Alabama, Arizona, California, and 22 other states.

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Atlantic Trust Advisors provides portfolio management for individuals and small businesses, portfolio management for investment companies, and portfolio management for pooled investment vehicles. It doesn't provide financial planning services to its clients. On top of advisory services, the firm doesn't engage in other business activities.

Atlantic Trust Advisors: assets under management

The assets under management (AUM) of Atlantic Trust Advisors, Inc. is $1.01 billion. The firm's AUM has gone down by -21% since the beginning of its operation, and the company doesn't manage any assets belonging to foreign clients.


The firm manages $589.85 million in discretionary accounts and $421.84 million in non-discretionary accounts. On average, the discretionary accounts where all decisions are made on behalf of the client hold $3.07 million each. Non-discretionary accounts, where clients actively manage their portfolios, generally hold around $3.2 million.

Fees & Commissions

The advisory firm has several streams of revenue. Clients pay Atlantic Trust Advisors, Inc. for their services and products based on a percentage of assets under management, fixed fees, and performance-based fees. Compensation based on assets under management promotes a long-term relationship between a client and the adviser and helps align mutual interests. These fees don’t include brokerage commissions, interest, taxes, and other account expenses.

Careers at Atlantic Trust Advisors, Inc.

Mark David Santero has been acting as President since 1 Feb 2003. Gabrielle Dubois Bailey joined the executive team most recently as the Assistant Secretary.

Direct owners and executive officers



Name Entity Date acquired Ownership Employer ID
Marc Stephen Keller Vice president & director 1 Feb 1998 Other 266581
Allan David Kiser Chief compliance officer 1 Feb 2003 Other 1925290
Paul Joseph Elmlinger General counsel & secretary 1 Feb 2003 Other 2094910
Inc. Atlantic Trust Group Sole shareholder 1 Feb 2003 75% - 100% 04-3173832
Stephen Emanuel Prostano President, ceo & director 1 Feb 2003 Other 2993748
Mark David Santero Director 1 Feb 2003 Other 1148011
John Jay Bini Treasurer 1 Feb 2003 Other 1201749
Nancy Ellen Sloane Compliance officer & assistant secretary 1 Feb 2003 Other 703098
Inc. Atlantic Wealth Management Group Sole shareholder 1 Feb 2003 75% - 100% 04-3173832
Gabrielle Dubois Bailey Assistant secretary 1 Sep 2003 Other 4735300
Mark David Santero President & director 1 Oct 2003 Other 1148011

Indirect Owners

The SEC currently registers 4 indirect owners.

Name Entity Date acquired Ownership Employer ID
Amvescap Plc Sole shareholder of avz inc. 1 Feb 1997 75% - 100% united kingdom
Avz Inc. Sole shareholder of amvescap group services, inc. 1 Feb 1997 75% - 100% 58-228-7224
Inc. Amvescap Group Services Sole shareholder of invesco north american holdings, inc. 1 Dec 2000 75% - 100% 51-1995394
Inc. Invesco North American Holdings Sole shareholder of atlantic trust group, inc. 1 Dec 2000 75% - 100% 51-0264787

Based in New York

The principal office where Atlantic Trust Advisors, Inc. performs its advisory services is located at 50 Rockefeller Plaza, New York, NY 10020, which is also the mailing address of the firm. The firm also has an office outside of the United States.

You can reach the main office by calling the phone number 212-259-3800 or by fax 212-259-3888. The normal business hours are 8:30a.m.-5:00p.m. on Monday - Friday. You can find more information about the New York firm at www.atlantictrustco.com.