← Directory
ASSET MANAGEMENT ONE CO., LTD.
CRD 110843File 801-55047
APPROVED
Custody
Disclosure events
Filing as of Jun 29, 2026
Feed vintage Oct 1, 2026
Regulatory AUM
$470.54B
Top 10% of cohort (national)
Discretionary AUM
$470.54B
Clients
1,406
1,741 accounts
Employees
950
Identity & registration
ADV Item 1- Organization form
- Corporation
- Firm type
- Registered
- SEC region
- HQ
- Registration date
- Dec 17, 1997
- Principal office
- TEKKO BUILDING, 8-2, MARUNOUCHI 1 CHOME, CHIYODA-KU, TOKYO, 100-0005
- Phone
- 81-3-6774-5000
Assets & accounts
ADV Item 5F- Total regulatory AUM
- $470.54B
- Discretionary AUM
- $470.54B
- Non-discretionary AUM
- $0
- Discretionary accounts
- 1,741
- Non-discretionary accounts
- 0
- Total accounts
- 1,741
- AUM per client
- $334.7M
Clients by type
ADV Item 5D| Client type | Clients | AUM |
|---|---|---|
| Other | 59 | $5.03B |
| Non-U.S. persons | Fewer than 5 | $7.76B |
| Insurance companies | 9 | $9.91B |
| Charitable organizations | 30 | $1.88B |
| Other investment advisers | 11 | $2.20B |
| High net worth individuals | Fewer than 5 | $0 |
| Pooled investment vehicles | 942 | $138.08B |
| Banking or thrift institutions | 17 | $316.9M |
| Pension and profit sharing plans | 321 | $56.18B |
| State or municipal government entities | 16 | $249.18B |
| Individuals (other than high net worth individuals) | Fewer than 5 | $0 |
Compensation & activities
ADV Items 5E, 5GCompensation
- Fixed fees
- Performance-based fees
- A percentage of assets under your management
Advisory activities
- Other advisory activities
- Selection of other advisers
- Portfolio management for businesses
- Portfolio management for pooled investment vehicles
Custody
ADV Item 9- Firm Custody Cash
- No
- Firm Custody Assets
- Yes
- Firm Custody Clients
- Yes
- Firm Custody Securities
- No
- Related Person Custody Cash
- Yes
- Related Person Custody Assets
- No
- Related Person Custody Clients
- Yes
- Related Person Custody Securities
- Yes
Disclosure events
ADV Item 11- Q11
- Q11D4
- Q11H1B
Filed changes
| Date | Field | From | To | Change |
|---|---|---|---|---|
| Jul 1, 2026 | Employees | 927 | 950 | increased by23 |
| Jul 1, 2026 | Clients | 1,433 | 1,406 | decreased by27 |
| Jul 1, 2026 | AUM | $450,647,441,991 | $470,542,380,723 | increased by$19,894,938,732 |
| Jul 1, 2026 | Accounts | 1,782 | 1,741 | decreased by41 |
| Dec 1, 2025 vs May 1, 2025 | Employees | 918 | 927 | increased by9 |
| Dec 1, 2025 vs May 1, 2025 | Clients | 1,484 | 1,433 | decreased by51 |
| Dec 1, 2025 vs May 1, 2025 | AUM | $456,316,074,923 | $450,647,441,991 | decreased by$5,668,632,932 |
| Dec 1, 2025 vs May 1, 2025 | Accounts | 1,842 | 1,782 | decreased by60 |
| May 1, 2025 vs Oct 1, 2022 | Employees | 885 | 918 | increased by33 |
| May 1, 2025 vs Oct 1, 2022 | Clients | 1,568 | 1,484 | decreased by84 |
| May 1, 2025 vs Oct 1, 2022 | AUM | $481,195,755,403 | $456,316,074,923 | decreased by$24,879,680,480 |
| May 1, 2025 vs Oct 1, 2022 | Accounts | 1,923 | 1,842 | decreased by81 |
| Jul 1, 2022 | Employees | 903 | 885 | decreased by18 |
| Jul 1, 2022 | Clients | 1,594 | 1,568 | decreased by26 |
| Jul 1, 2022 | AUM | $497,037,028,547 | $481,195,755,403 | decreased by$15,841,273,144 |
On Form 5500, an adviser usually appears as a plan service provider (Schedule C), not the plan sponsor.
See plans that list “ASSET MANAGEMENT” as a service provider on 5500mcp →Matched by name only — Form ADV and Form 5500 share no identifier, and names are searched loosely (“ASSET MANAGEMENT” may also match similarly-named firms). Confirm identity against each filing.
Every value above is reproduced from this firm's Form ADV filing. Fields the firm left blank are shown as “Not reported” rather than filled in from other sources.