Firm profile

Sumitomo Mitsui Ds Asset Management Company, Limited

MINATO-KU, TOKYO, JapanCRD 301509Registration Status: ApprovedEffective since May 28, 2019SEC # 801-116710Latest ADV August 20, 2026

Sumitomo Mitsui Ds Asset Management Company, Limited is an SEC registered investment adviser organized as a corporation with a primary office location in Minato-Ku, Tokyo, Japan. Its latest Form ADV filing, dated August 20, 2026, reports $177.7B in regulatory assets under management, 1,022 employees, 1 office, and 1,340 accounts.

Assets Under Management
$177.7B
Employees
1,022
Offices
1 office
Total Clients
1,340

Associated firm names

5 names listed
  • SMAM
  • SUMITOMO MITSUI DS ASSET MANAGEMENT COMPNY,LIMITED
  • SUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITED
  • SUMITOMO MITSUI ASSET MANAGEMENT COMPANY, LIMITED

Leadership

3 roles identified
CEOWataru Ogihara
CCOTomonobu Matsui
COOTsuneto Iki

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
Fixed fees
Performance-based fees

Offices & Contact

Primary office

MINATO-KU, TOKYO, Japan

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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.

Japan

MINATO-KU, TOKYOPrimary 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$177.7Bas of August 20, 2026
Discretionary94.3%
$167.6B
94% of total RAUM94.3%
Non-discretionary5.7%
$10.1B
6% of total RAUM5.7%
Regulatory assets under management are split between discretionary and non-discretionary assets.

Client Coverage Demographics

Top client segmentPooled Investment Vehicles represent 61.4% of total clients.
Top client categories% of clientsClients
1
Pooled Investment Vehicles
61.4%
823
2
Pension Plans
27.6%
370
3
Corporations
8.0%
107
4
Banks
3.0%
40

Assets under management Growth by Quarter

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

Total AUM$177.7B
Total Accounts1,340
10Y AUM Change+$28.1B (+18.8%)

Private Funds

Private funds reported by Sumitomo Mitsui Ds Asset Management Company, Limited

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Employee Growth by Quarter

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

Total Employees1,022
Clients per Employee1:1
10Y Employee Change-86 (-7.8%)

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%
SUMITOMO MITSUI FINANCIAL GROUP, INC.Direct owner · Schedule AInterest in SUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITED
50% to < 75%
DAIWA SECURITIES GROUP INC.Direct owner · Schedule AInterest in SUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITED
10% to < 25%
MITSUI SUMITOMO INSURANCE COMPANY, LIMITEDDirect owner · Schedule AInterest in SUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITED
10% to < 25%
SUMITOMO LIFE INSURANCE COMPANYDirect owner · Schedule AInterest in SUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITED
10% to < 25%
SUMITOMO MITSUI TRUST BANK, LIMITEDDirect owner · Schedule AInterest in SUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITED
< 5%

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 Sumitomo Mitsui Ds Asset Management Company, Limited.

No indirect ownership information reported in the source’s Schedule B.

Reported ownership and control details

Form ADV · Filing date 2026-08-20 · Schedules A and B

30 entries
#Owner / person & roleInterest in entityReported interestControl personTitle / status acquiredSource
1DAIWA SECURITIES GROUP INC.SHAREHOLDERForeign entitySUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITED10% to less than 25%Code BNoSHAREHOLDER04/1999Schedule APDF page 28
2SUMITOMO MITSUI TRUST BANK, LIMITEDSHAREHOLDERForeign entitySUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NANoSHAREHOLDER04/1999Schedule APDF page 28
3SUMITOMO MITSUI FINANCIAL GROUP, INC.PARENT COMPANYForeign entitySUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITED50% to less than 75%Code DYesPARENT COMPANY02/2003Schedule APDF page 28
4MITSUI SUMITOMO INSURANCE COMPANY, LIMITEDSHAREHOLDERForeign entitySUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITED10% to less than 25%Code BNoSHAREHOLDER12/2002Schedule APDF page 28
5SUMITOMO LIFE INSURANCE COMPANYSHAREHOLDERForeign entitySUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITED10% to less than 25%Code BNoSHAREHOLDER12/2002Schedule APDF page 28
6TSUNETO IKIDEPUTY PRESIDENT EXCUTIVE OFFICER AND COOIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesDEPUTY PRESIDENT EXCUTIVE OFFICER AND COO04/2025Schedule APDF page 28
7OSAMU UEYAMADIRECTOR AND SENIOR MANAGING EXECUTIVE OFFICERIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesDIRECTOR AND SENIOR MANAGING EXECUTIVE OFFICER04/2024Schedule APDF page 28
8KOICHI KINOSHITAMANAGING EXECUTIVE OFFICERIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesMANAGING EXECUTIVE OFFICER04/2020Schedule APDF page 28
9TAKENARI SUZUKIMANAGING EXECUTIVE OFFICERIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesMANAGING EXECUTIVE OFFICER04/2020Schedule APDF page 28
10Tsuyoshi NiijimaEXECUTIVE OFFICERIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesEXECUTIVE OFFICER04/2021Schedule APDF page 28
11Tomonobu MatsuiCHIEF COMPLIANCE OFFICER, DIRECTOR AND MANADING EXECUTIVE OFFIERIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesCHIEF COMPLIANCE OFFICER, DIRECTOR AND MANADING EXECUTIVE OFFIER04/2024Schedule APDF page 28
12Hiroko SasakiDIRECTOR (OUTSIDE)IndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesDIRECTOR (OUTSIDE)10/2022Schedule APDF page 28
13Naoto NagaiSENIOR MANAGING EXECUTIVE OFFICERIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesSENIOR MANAGING EXECUTIVE OFFICER04/2025Schedule APDF page 28
14Tomonori HoriEXECUTIVE OFFICERIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesEXECUTIVE OFFICER04/2023Schedule APDF page 28
15WATARU OGIHARAREPRESENTATIVE DIRECTOR, PRESIDENT AND CEOIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesREPRESENTATIVE DIRECTOR, PRESIDENT AND CEO04/2025Schedule APDF page 28
16SHIKO YANAGISAWADIRECTOR AND DEPUTY PRESIDENT EXECUTIVE OFFICERIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesDIRECTOR AND DEPUTY PRESIDENT EXECUTIVE OFFICER04/2024Schedule APDF page 28
17Yasuko KitoEXECUTIVE OFFICERIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesEXECUTIVE OFFICER04/2024Schedule APDF page 28
18Kenji SonodaEXECUTIVE OFFICERIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesEXECUTIVE OFFICER04/2024Schedule APDF page 28
19Yasuhiro HaradaEXECUTIVE OFFICERIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesEXECUTIVE OFFICER04/2024Schedule APDF page 28
20Yuko TsuchiyaMANAGING EXECUTIVE OFFICERIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesMANAGING EXECUTIVE OFFICER04/2024Schedule APDF page 28
21NAOYA ORIMEDIRECTOR(OURSIDE)IndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesDIRECTOR(OURSIDE)06/2024Schedule APDF page 28
22Yoshiharu TakedaEXECUTIVE OFFICERIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesEXECUTIVE OFFICER04/2025Schedule APDF page 28
23Katsuro OkuzumiEXECUTIVE OFFICERIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesEXECUTIVE OFFICER04/2025Schedule APDF page 28
24Kenji UmaokaEXECUTIVE OFFICERIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesEXECUTIVE OFFICER04/2025Schedule APDF page 28
25Ryota KurashigeEXECUTIVE OFFICERIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesEXECUTIVE OFFICER04/2025Schedule APDF page 28
26Miki OikawaDIRECTOR (OUTSIDE)IndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesDIRECTOR (OUTSIDE)06/2025Schedule APDF page 28
27Tetsuji YasunagaMANAGING EXECUTIVE OFFICERIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesMANAGING EXECUTIVE OFFICER04/2026Schedule APDF page 28
28Kuniaki MatsuoEXECUTIVE OFFICERIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesEXECUTIVE OFFICER04/2026Schedule APDF page 28
29Yasunori SagaEXECUTIVE OFFICERIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesEXECUTIVE OFFICER04/2026Schedule APDF page 28
30Naruaki MatsumotoEXECUTIVE OFFICERIndividualSUMITOMO MITSUI DS ASSET MANAGEMENT COMPANY, LIMITEDLess than 5%Code NAYesEXECUTIVE OFFICER04/2026Schedule APDF page 28

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 8/20/2026 8:05:05 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.