D.B. Zwirn & Co., L.P. (New York)


D.B. Zwirn & Co., L.P. is a large advisory firm based in New York. It manages $3.47 billion of regulatory assets for 9 client accounts. It has been registered with the SEC as an adviser since 2005 and has operated in the jurisdictions of Connecticut, New York, and Texas.

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D.B. Zwirn & Co. provides 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.

D.B. Zwirn & Co.: assets under management

The assets under management (AUM) of D.B. Zwirn & Co., L.P. is $3.47 billion, all of which is managed in discretionary accounts. The firm's AUM has grown by 0% since the beginning of its operation, and the company doesn't manage any assets belonging to foreign clients.


The firm manages $3.47 billion in discretionary accounts. On average, the discretionary accounts where all decisions are made on behalf of the client hold $385.43 million each.

Fees & Commissions

The advisory firm has several streams of revenue. Clients pay D.B. Zwirn & Co., L.P. for their services and products based on a percentage of assets under management 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.

Indirect Owners

The SEC currently registers 6 indirect owners.

Name Entity Date acquired Ownership Employer ID
Glenn Russell Dubin Co-chairman/shareholder 1 Jun 1989 50% - 75% 864420
Henry Alexander Swieca Co-chairman/shareholder 1 Jun 1989 50% - 75% 711959
Inc. Dubin & Swieca Asset Management Managing member 1 Oct 1997 75% - 100% 13-3530962
Daniel Bernard Zwirn Ceo 1 Apr 2002 75% - 100% 2388847
Llc Dubin & Swieca Asset Management Member 1 Mar 2004 25% - 50% 13-3993048
Llc Zwirn Holdings Managing member 1 Mar 2004 50% - 75% 30-0080444

Based in New York

The principal office where D.B. Zwirn & Co., L.P. performs its advisory services is located at 745 Fifth Avenue, New York, NY 10151, which is also the mailing address of the firm. An additional office of the firm is in Houston, TX. It doesn’t run an office outside of the United States.

You can reach the main office by calling the phone number 646-720-9100 or by fax 646-720-9000. The normal business hours are 8am to 6pm on Monday - Friday. You can find more information about the New York firm at www.dbzco.com.