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Decagon Asset Management (US)

InstitutionalAsset manager

New York, NYCRD 322135Updated

Decagon Asset Management (US) is an investment adviser based in New York, NY, registered with the SEC since 2022. It provides investment management. Its clients include other clients and pooled investment vehicles. Its regulatory assets under management total $721 million, as filed on 26 June 2026.

5
Clients
Not reported
AUM per individual client
1
Advisory staff
1
Offices

From Form ADV filed 26 June 2026SEC record

Services and clients

Decagon Asset Management (US) provides portfolio management for institutions.

Decagon Asset Management (US) reports 5 clients. They include 4 other clients and 1 pooled investment vehicle. Of its assets, 100.0% ($721M across 5 accounts) are managed with discretion. Of its clients, 100% are outside the U.S. It advised 2 clients without assets under management last fiscal year.

Clients and assets by client type
Clients5 clients
Assets$721M
Share of clients and assets by client type
Client typeClientsAssets
Pooled investment vehicles20%5%
Other80%95%
Client breakdown and activity details
Pooled investment vehicles
Clients
1
Regulatory AUM
$32.6M
AUM share
4.5%
Avg. per client
$32.6M
Other
Clients
4
Regulatory AUM
$688M
AUM share
95.5%
Avg. per client
$172M

Total

Clients
5
Regulatory AUM
$721M
AUM share
100%
Avg. per client
$144M
Clients outside the U.S.
100%
Clients advised without assets under management last fiscal year
2
Private funds advised
0

Fees and minimums

Decagon Asset Management (US) is paid through a percentage of assets under management and performance-based fees; its fees and minimums are set out in its brochures on the SEC website.

Ownership and people

Decagon Asset Management US (GP) LLC owns 75% or more of Decagon Asset Management (US) and is in turn owned by Decagon Asset Management (Uk) LTD (75% or more). The leadership team of Decagon Asset Management (US) includes Chief Compliance Officer Olivia Cooper. It has 2 employees, 1 of them in advisory roles.

Leadership

  • Olivia Cooper
    Chief Compliance Officer / Owner
  • Benjamin Durham
    CEO/CIO/Owner/Partner
  • Lloyd Tomlin
    Partner

Staff

  • 2 employees
  • 1 in advisory functions
Who owns the firm
Decagon Asset Management (US) LP· the adviser
  • Decagon Asset Management US (GP) LLC

    Control person · since May 2022

    Owns 75% or more of Decagon Asset Management (US) LP
    • Decagon Asset Management (Uk) LTD

      Control person · since May 2022

      Owns 75% or more of Decagon Asset Management US (GP) LLC
      • Benjamin Durham

        Control person · since May 2022

        Owns 50% to 75% of Decagon Asset Management (Uk) LTD
      • Nikola Kroepfl

        Control person · since May 2022

        Owns 25% to 50% of Decagon Asset Management (Uk) LTD

Growth and acquisitions

Decagon Asset Management (US)’s regulatory assets grew Infinity× from $0 (June 2022) to $721M (June 2026); employees were 2 in both filings.

By annual filing
Measure
Figures from each annual filing
Decagon Asset Management (US) figures from each annual Form ADV filing
FiledRegulatory AUMClientsEmployeesOffices
June 2026$721M521
March 2025$304M321
March 2024$221M321
July 2023$213M321
June 2022$0021

Offices and registration details

Besides its headquarters, Decagon Asset Management (US) has 0 offices, with 1 listed address in New York.

Listed office addresses in New York
New York

New York · 1 listed address

  • 4 World Trade Center, 2937, 150 Greenwich Street, 29th Floor, New YorkHQ

Contact and registration details

Legal name
Decagon Asset Management (US) LP
Headquarters
4 World Trade Center, 2937, 150 Greenwich Street, 29th Floor, New York, NY 10007
SEC file
801-125991
Structure
Delaware limited partnership
Fiscal year end
December

Custodians

Decagon Asset Management (US) uses Goldman Sachs & Co. ($329M, 48%), UBS Ag ($258M, 37%) and J.P. Morgan ($102M, 15%) as custodians for its separately managed accounts. Decagon Asset Management (US) does not have custody of client assets.

Reported separately managed account assets by custodian
$688M
named custodians
  • Goldman Sachs & Co.Goldman Sachs & Co. LLC · New York, NY · $329M48%
  • UBS AgUBS Ag · London · $258M37%
  • J.P. MorganJ.P. Morgan Securities PLC · London · $102M15%

Investments and reported holdings

At year end, Decagon Asset Management (US)’s separately managed accounts were mostly in stocks (99%).

What the accounts hold

Separately managed account assets by class, year end
  • Stocks99%
  • Other1%
    • Derivatives1%

Common questions

How many clients does Decagon Asset Management (US) have?

Decagon Asset Management (US) has 5 clients and manages $721 million for them, as of June 2026. They include 4 other clients and 1 pooled investment vehicle.

Source: Form ADV Part 1A, Items 5.D and 5.F, filed 26 June 2026

What services does Decagon Asset Management (US) offer?

Decagon Asset Management (US) provides portfolio management for institutions.

Source: Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file

Which custodians does Decagon Asset Management (US) use?

Decagon Asset Management (US)’s separately managed account assets are held at Goldman Sachs & Co. LLC (New York, NY), with $329M, UBS Ag (London), with $258M and J.P. Morgan Securities PLC (London), with $102M. Only custodians holding at least a tenth of those assets are named.

Source: Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 26 June 2026

How many financial advisors does Decagon Asset Management (US) have?

Decagon Asset Management (US) has 0 investment adviser representatives registered with state securities authorities, out of 2 employees, and 1 perform investment advisory functions. None are registered representatives of a broker-dealer or licensed insurance agents.

Source: Form ADV Part 1A, Items 5.A and 5.B, from the SEC's 2 October 2026 data file

What does Decagon Asset Management (US) invest in?

At the end of its last fiscal year, Decagon Asset Management (US)’s separately managed accounts held 99% exchange-traded equities and 1% derivatives.

Source: Form ADV Part 1A, Items 5.K.(1) and 7.B, from the SEC's 2 October 2026 data file

Who owns Decagon Asset Management (US)?

Decagon Asset Management (US) is owned through a chain of holding companies by Nikola Kroepfl and Benjamin Durham. Its direct owner is Decagon Asset Management US (GP) LLC (75% or more).

Source: Form ADV Part 1A, Schedules A and B, filed 26 June 2026

How does Decagon Asset Management (US) get paid?

Decagon Asset Management (US) is paid through a percentage of assets under management and performance-based fees. Its Form ADV lists no commissions among how it is paid.

Source: Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file

How do I contact Decagon Asset Management (US)?

Decagon Asset Management (US)’s main office is at 4 World Trade Center, 2937, 150 Greenwich Street, 29th Floor, New York, NY 10007. Its phone number is 646-485-6430. Its website is decagonam.com.

Source: Form ADV Part 1A, Item 1.F, filed 26 June 2026

Sources and methodology

  1. Form ADV Part 1A, amendment filed 26 June 2026. Items 1, 5, 9, 11 and Schedules A, B and D.
  2. IAPD firm record, CRD 322135.
  3. SEC registered adviser data, annual Form ADV amendments filed 9 June 2022 to 26 June 2026. Items 1.F and 5.

Retrieved 15 October 2026. All are published by the SEC and may have been amended since. Disciplinary history is not yet shown here. The SEC publishes the complete record, including any disciplinary events, and it is the authoritative place to check one.

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