Firm profile

Sona Asset Management (Us) LLC

NEW YORK, NYCRD 291738Registration Status: ApprovedEffective since February 7, 2018SEC # 801-112410Latest ADV July 9, 2026

Sona Asset Management (Us) LLC is an SEC registered investment adviser organized as a limited liability company with a primary office location in New York, NY. Its latest Form ADV filing, dated July 9, 2026, reports $33.5B in regulatory assets under management, 39 employees, 1 office, and 20 accounts.

Assets Under Management
$33.5B
Employees
39
Offices
1 office
Total Clients
20

Associated firm names

1 name listed
  • SONA ASSET MANAGEMENT (US) LLC

Leadership

4 roles identified
CEOHenrik J. G. Johnsson
CCOJoseph A. Grogan
CFOChristopher D. Hill

Advisory services offered

2 types reported
Portfolio management for businesses
Portfolio management for pooled investment vehicles

Fee models offered

3 types reported
Asset based fees
Other fee arrangements
Performance-based fees

Offices & Contact

Primary office

NEW YORK, New York, United States

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Primary office regionOther reported regions

Shading shows states and countries with reported offices. Cities are listed below; shading does not indicate service coverage.

New York

NEW YORKPrimary office

1 office records listed · 1 total offices reported. Counts can use different reporting dates. SEC filers may list only their largest 25 additional offices.

Contact and digital presence

ADV profile links

Regulatory Assets Under Management Breakdown

Total regulatory assets under management$33.5Bas of July 9, 2026
Discretionary100.0%
$33.5B
100% of total RAUM100.0%
Non-discretionary0.0%
$0
0% of total RAUM0.0%
All regulatory assets under management are discretionary.

Client Coverage Demographics

Top client segmentPooled Investment Vehicles represent 75.0% of total clients.
Top client categories% of clientsClients
1
Pooled Investment Vehicles
75.0%
15
2
Sovereign Wealth
10.0%
2
3
TRADING SPV
10.0%
2
4
Pension Plans
5.0%
1
Categories with <5 clients
Pension and profit sharing plans<5 clients
Sovereign wealth funds and foreign official institutions<5 clients

Assets under management Growth by Quarter

Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.

Total AUM$33.5B
Total Accounts20
10Y AUM Change+$32.3B (+2674.4%)

Private Funds

Private funds reported by Sona Asset Management (Us) LLC

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Employee Growth by Quarter

Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.

Total Employees39
Clients per Employee1:1
10Y Employee Change+36 (+1200.0%)

Historical AUM and employee figures reflect available SEC Form ADV filings under this CRD. Filing gaps may reflect registration status changes, dormant periods, state registration periods, firm restructuring, or other reporting changes. Rialytix does not interpolate missing periods.


Ownership

Reported direct and indirect ownership ranges

Each range applies to a separate reported relationship and should not be added together.

Reported ownership ranges

Highlighted bands show the percentage range reported in Form ADV.

0%25%50%75%100%
SONA ASSET MANAGEMENT LIMITEDDirect owner · Schedule AInterest in SONA ASSET MANAGEMENT (US) LLC
75%+
SONA ASSET MANAGEMENT CAYMAN LIMITEDIndirect owner · Schedule BInterest in SONA ASSET MANAGEMENT LIMITED
75%+
JOHN BRIAN AYLWARDIndirect owner · Schedule BInterest in SONA ASSET MANAGEMENT CAYMAN LIMITED
75%+

Bars represent the reported range at that individual ownership step, not an estimated percentage of the advisory firm. Indirect relationships may refer to intermediate entities rather than directly to Sona Asset Management (Us) LLC.

Reported ownership and control details

Form ADV · Filing date 2026-07-09 · Schedules A and B

12 entries
#Owner / person & roleInterest in entityReported interestControl personTitle / status acquiredSource
1JOHN BRIAN AYLWARDCIOIndividualSONA ASSET MANAGEMENT (US) LLCLess than 5%Code NAYesCIO01/2017Schedule APDF page 66
2JOHN PAUL BERKERYHEAD OF USIndividualSONA ASSET MANAGEMENT (US) LLCLess than 5%Code NAYesHEAD OF US01/2017Schedule APDF page 66
3SONA ASSET MANAGEMENT LIMITEDOWNER/MEMBERForeign entitySONA ASSET MANAGEMENT (US) LLC75% or moreCode EYesOWNER/MEMBER01/2017Schedule APDF page 66
4CHRISTOPHER DAVID HILLCHIEF FINANCIAL OFFICERIndividualSONA ASSET MANAGEMENT (US) LLCLess than 5%Code NAYesCHIEF FINANCIAL OFFICER10/2025Schedule APDF page 66
5JOSEPH ALBERT GROGANUS CHIEF COMPLIANCE OFFICERIndividualSONA ASSET MANAGEMENT (US) LLCLess than 5%Code NAYesUS CHIEF COMPLIANCE OFFICER01/2026Schedule APDF page 66
6HENRIK JAN GUSTAV JOHNSSONCEOIndividualSONA ASSET MANAGEMENT (US) LLCLess than 5%Code NAYesCEO01/2026Schedule APDF page 66
7JUSTIN SHIHCOOIndividualSONA ASSET MANAGEMENT (US) LLCLess than 5%Code NAYesCOO04/2026Schedule APDF page 66
8JOHN BAILLIE CONSTANTINE KNOXCHIEF LEGAL OFFICERIndividualSONA ASSET MANAGEMENT (US) LLCLess than 5%Code NAYesCHIEF LEGAL OFFICER03/2025Schedule APDF page 66
9KATHRYN LOUISE HASWELLGLOBALCCOIndividualSONA ASSET MANAGEMENT (US) LLCLess than 5%Code NAYesGLOBALCCO06/2026Schedule APDF page 66
10Gabriel Jacobus ErasmusCROIndividualSONA ASSET MANAGEMENT (US) LLCLess than 5%Code NAYesCRO01/2026Schedule APDF page 66
11SONA ASSET MANAGEMENT CAYMAN LIMITEDOWNERForeign entitySONA ASSET MANAGEMENT LIMITED75% or moreCode EYesOWNER12/2016Schedule BPDF page 67
12JOHN BRIAN AYLWARDOWNERIndividualSONA ASSET MANAGEMENT CAYMAN LIMITED75% or moreCode EYesOWNER12/2016Schedule BPDF page 67

Less than 5% may include zero. Code F identifies a role without specifying a percentage. Reported interests may overlap and may not include every owner. Total indirect ownership is not calculated.

Compliance & Disclosures

Filing dated 7/9/2026 12:15:42 PM

Responses were selected by the RIA in its filing. Questions are shortened for readability; “you” refers to the reporting firm, and some questions also cover advisory affiliates.

RIA or supervised-person involvementThe RIA reported that none of the events below involve the firm or its supervised persons.RIA responseNo
AFelonies2 No

In the past ten years, have you or any advisory affiliate:

  • A1Been convicted of or pleaded guilty or no contest to a felony?No
  • A2Been charged with a felony?No
BMisdemeanors2 No

In the past ten years, have you or any advisory affiliate:

  • B1Been convicted of or pleaded guilty or no contest to a misdemeanor involving investments, an investment-related business, fraud, false statements or omissions, wrongful taking of property, bribery, perjury, forgery, counterfeiting, or extortion?No
  • B2Been charged with a misdemeanor of the kind listed above?No
CSEC or CFTC actions5 No

Has the SEC or CFTC ever:

  • C1Found you or an advisory affiliate made a false statement or omission?No
  • C2Found you or an advisory affiliate violated SEC or CFTC regulations or statutes?No
  • C3Found you or an advisory affiliate caused an investment-related business to have its authorization to do business denied, suspended, revoked, or restricted?No
  • C4Entered an order against you or an advisory affiliate in connection with investment-related activity?No
  • C5Imposed a civil money penalty on you or an advisory affiliate, or ordered you or an advisory affiliate to cease and desist from any activity?No
DOther regulatory actions5 No

Has any other federal regulatory agency, state regulatory agency, or foreign financial regulatory authority ever:

  • D1Found you or an advisory affiliate made a false statement or omission, or was dishonest, unfair, or unethical?No
  • D2Found you or an advisory affiliate violated investment-related regulations or statutes?No
  • D3Found you or an advisory affiliate caused an investment-related business to have its authorization to do business denied, suspended, revoked, or restricted?No
  • D4In the past ten years, entered an order against you or an advisory affiliate in connection with investment-related activity?No
  • D5Denied, suspended, or revoked your or an advisory affiliate’s registration or license, or otherwise prevented association with an investment-related business or restricted activities?No
ESelf-regulatory organization actions4 No

Has a self-regulatory organization or commodities exchange ever:

  • E1Found you or an advisory affiliate made a false statement or omission?No
  • E2Found you or an advisory affiliate violated its rules, other than a violation designated as a minor rule violation under an SEC-approved plan?No
  • E3Found you or an advisory affiliate caused an investment-related business to have its authorization to do business denied, suspended, revoked, or restricted?No
  • E4Disciplined you or an advisory affiliate by expulsion, suspension, barring association with other members, or otherwise restricting activities?No
FProfessional authorizations1 No
  • FHas an authorization to act as an attorney, accountant, or federal contractor granted to you or an advisory affiliate ever been revoked or suspended?No
GPending regulatory proceedings1 No
  • GAre you or any advisory affiliate now the subject of a regulatory proceeding that could result in a “Yes” answer to any part of C, D, or E?No
HCivil judicial actions and proceedings4 No

(1) Court actions

Has a domestic or foreign court:

  • H(1)(a)In the past ten years, enjoined you or an advisory affiliate in connection with investment-related activity?No
  • H(1)(b)Found that you or an advisory affiliate violated investment-related statutes or regulations?No
  • H(1)(c)Dismissed, pursuant to a settlement agreement, an investment-related civil action brought against you or an advisory affiliate by a state or foreign financial regulatory authority?No

(2) Pending civil proceedings

  • H(2)Are you or any advisory affiliate now the subject of a civil proceeding that could result in a “Yes” answer to any part of H(1)?No

* Metrics are based on the latest available data, including Form ADV filings, brochures, and relationship summaries pulled from the SEC IAPD, and may be subject to change. Learn what is included in the Rialytix data. Please refer to the firm's official disclosures for the most accurate information using their CRD number. This is not investment advice.