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Decagon Asset Management

InstitutionalPrivate markets

London, United KingdomCRD 319363Updated

Decagon Asset Management is an investment adviser based in London, United Kingdom, 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 $1.03 billion, as filed on 24 June 2026.

5
Clients
Not reported
AUM per individual client
2
Advisory staff
1
Offices

From Form ADV filed 24 June 2026SEC record

Services and clients

Decagon Asset Management provides portfolio management for pooled vehicles and portfolio management for institutions. The firm advises 1 private fund.

Decagon Asset Management reports 5 clients. They include 4 other clients and 1 pooled investment vehicle. Of its assets, 100.0% ($1.03B across 5 accounts) are managed with discretion. Of its clients, 100% are outside the U.S. It advised 5 clients without assets under management last fiscal year.

Clients and assets by client type
Clients5 clients
Assets$1.03B
Share of clients and assets by client type
Client typeClientsAssets
Pooled investment vehicles20%15%
Other80%85%
Client breakdown and activity details
Pooled investment vehicles
Clients
1
Regulatory AUM
$150M
AUM share
14.6%
Avg. per client
$150M
Other
Clients
4
Regulatory AUM
$881M
AUM share
85.4%
Avg. per client
$220M

Total

Clients
5
Regulatory AUM
$1.03B
AUM share
100%
Avg. per client
$206M
Clients outside the U.S.
100%
Clients advised without assets under management last fiscal year
5
Private funds advised
1

Fees and minimums

Decagon Asset Management 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

Benjamin Durham owns 50% to 75% of Decagon Asset Management. The leadership team of Decagon Asset Management includes Chief Compliance Officer Olivia Cooper. It has 6 employees, 2 of them in advisory roles.

Leadership

  • Olivia Cooper
    Chief Compliance Officer /Owner
  • Benjamin Durham
    CEO/CIO/Owner/Partner
  • Nikola Kroepfl
    Owner/Partner

Staff

  • 6 employees
  • 2 in advisory functions
Who owns the firm
Decagon Asset Management LLP· the adviser
  • Benjamin Durham

    Control person · since January 2022

    Owns 50% to 75% of Decagon Asset Management LLP
  • Nikola Kroepfl

    Control person · since January 2022

    Owns 25% to 50% of Decagon Asset Management LLP
  • Olivia Cooper

    Control person · since January 2022

    Owns 5% to 10% of Decagon Asset Management LLP

Growth and acquisitions

Decagon Asset Management’s regulatory assets grew Infinity× from $0 (April 2022) to $1.03B (June 2026); employees rose from 4 to 6.

By annual filing
Measure
Figures from each annual filing
Decagon Asset Management figures from each annual Form ADV filing
FiledRegulatory AUMClientsEmployeesOffices
June 2026$1.03B561
June 2025$606M361
June 2024$283M341
July 2023$213M351
April 2022$0041

Offices and registration details

Besides its headquarters, Decagon Asset Management has 0 offices, with 1 listed address with no US state reported.

Contact and registration details

Legal name
Decagon Asset Management LLP
Headquarters
5 Swallow Place, London, United Kingdom W1B 2AF
SEC file
801-124747
Structure
limited liability partnership organized in United Kingdom
Fiscal year end
March

Custodians

Decagon Asset Management uses UBS Ag ($404M, 46%), Goldman Sachs & Co. ($305M, 35%) and J.P. Morgan ($173M, 20%) as custodians for its separately managed accounts. Decagon Asset Management does not have custody of client assets.

Reported separately managed account assets by custodian
$881M
named custodians
  • Goldman Sachs & Co.Goldman Sachs & Co. LLC · New York, NY · $305M35%
  • UBS AgUBS Ag · London · $404M46%
  • J.P. MorganJ.P. Morgan Securities PLC · London · $173M20%

Investments and reported holdings

At year end, Decagon Asset Management’s separately managed accounts were mostly in stocks (96%).

What the accounts hold

Separately managed account assets by class, year end
  • Stocks96%
  • Other4%
    • Derivatives4%

Common questions

How many clients does Decagon Asset Management have?

Decagon Asset Management has 5 clients and manages $1.03 billion 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 24 June 2026

What services does Decagon Asset Management offer?

Decagon Asset Management provides portfolio management for pooled vehicles and 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 use?

Decagon Asset Management’s separately managed account assets are held at UBS Ag (London), with $404M, Goldman Sachs & Co. LLC (New York, NY), with $305M and J.P. Morgan Securities PLC (London), with $173M. Only custodians holding at least a tenth of those assets are named.

Source: Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 24 June 2026

How many financial advisors does Decagon Asset Management have?

Decagon Asset Management has 0 investment adviser representatives registered with state securities authorities, out of 6 employees, and 2 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 invest in?

At the end of its last fiscal year, Decagon Asset Management’s separately managed accounts held 96% exchange-traded equities and 4% derivatives. It advises 1 private fund.

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?

Decagon Asset Management’s direct owners are Olivia Cooper (5% to 10%), Benjamin Durham (50% to 75%) and Nikola Kroepfl (25% to 50%).

Source: Form ADV Part 1A, Schedules A and B, filed 24 June 2026

How does Decagon Asset Management get paid?

Decagon Asset Management 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?

Decagon Asset Management’s main office is at 5 Swallow Place, London, United Kingdom W1B 2AF. Its phone number is 00442031482240. Its website is decagonam.com.

Source: Form ADV Part 1A, Item 1.F, filed 24 June 2026

Sources and methodology

  1. Form ADV Part 1A, amendment filed 24 June 2026. Items 1, 5, 9, 11 and Schedules A, B and D.
  2. IAPD firm record, CRD 319363.
  3. SEC registered adviser data, annual Form ADV amendments filed 7 April 2022 to 24 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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