Seastone Capital Management, L.P. (New York)
Eleanor Gray
Published Mar 21, 2026
Seastone Capital Management, L.P. is a large advisory firm based in New York. It manages $511.99 million of regulatory assets for 4 client accounts. It has been registered with the SEC as an adviser since 2012 and has operated in the jurisdiction of New York.
Seastone Capital Management 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.
Seastone Capital Management: assets under management
The assets under management (AUM) of Seastone Capital Management, L.P. is $511.99 million, all of which is managed in discretionary accounts. The firm's AUM has gone down by -41% since the beginning of its operation, and the company doesn't manage any assets belonging to foreign clients.
The firm manages $511.99 million in discretionary accounts. On average, the discretionary accounts where all decisions are made on behalf of the client hold $128 million each.
Seastone Capital Management has custody of $448.04 million in cash and securities for 3 clients in total but doesn’t act as a qualified custodian.
Fees & Commissions
The advisory firm has several streams of revenue. Clients pay Seastone Capital Management, L.P. for their services and products based on a percentage of assets under management and performance-based fees. The adviser charges an additional fee when a set benchmark is outperformed. These fees don’t include brokerage commissions, interest, taxes, and other account expenses.
Careers at Seastone Capital Management, L.P.
L.L.C. Seastone Associates joined the executive team most recently as the Managing Member Seastone Advisors, L.L.C..
Direct owners and executive officers
Indirect Owners
The SEC currently registers 9 indirect owners.Based in New York
The principal office where Seastone Capital Management, L.P. performs its advisory services is located at 767 Fifth Ave, 16 Th Floor, New York, NY 10153, which is also the mailing address of the firm. It doesn’t run an office outside of the United States.
You can reach the main office by calling the phone number 212-310-1200 or by fax 212-310-1290. The normal business hours are 8am-6pm on Monday - Friday.
