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TANAKA CAPITAL MANAGEMENT INC
CRD 109888File 801-28990
APPROVED
Retail clients
Filing as of Jul 17, 2026
Feed vintage Oct 1, 2026
Regulatory AUM
$69.4M
Bottom 25% of cohort (national)
Discretionary AUM
$69.4M
Clients
18
21 accounts
Employees
3
Bottom 25% of cohort in CT
Identity & registration
ADV Item 1- Organization form
- Corporation
- Firm type
- Registered
- SEC region
- BRO
- Registration date
- Feb 10, 1987
- Principal office
- 777 WEST PUTNAM AVENUE, SUITE 300, GREENWICH, CT, 06830
- Phone
- 212-490-3380
- Website
- HTTP://WWW.TANAKA.COM
Assets & accounts
ADV Item 5F- Total regulatory AUM
- $69.4M
- Discretionary AUM
- $69.4M
- Non-discretionary AUM
- $0
- Discretionary accounts
- 21
- Non-discretionary accounts
- 0
- Total accounts
- 21
- AUM per client
- $3.9M
Clients by type
ADV Item 5D| Client type | Clients | AUM |
|---|---|---|
| Investment companies | 1 | $37.1M |
| High net worth individuals | 7 | $19.3M |
| Pension and profit sharing plans | Fewer than 5 | $9.1M |
| Individuals (other than high net worth individuals) | 9 | $3.9M |
Compensation & activities
ADV Items 5E, 5GCompensation
- Fixed fees
- A percentage of assets under your management
Advisory activities
- Portfolio management for businesses
- Portfolio management for investment companies
- Portfolio management for individuals and/or small businesses
Custody
ADV Item 9- Firm Custody Cash
- No
- Firm Custody Assets
- No
- Firm Custody Clients
- No
- Firm Custody Securities
- No
- Related Person Custody Cash
- No
- Related Person Custody Assets
- No
- Related Person Custody Clients
- No
- Related Person Custody Securities
- No
Disclosure events
ADV Item 11This firm answered no to every Item 11 disclosure question in this filing.
Filed changes
| Date | Field | From | To | Change |
|---|---|---|---|---|
| Apr 1, 2026 | Clients | 19 | 18 | decreased by1 |
| Apr 1, 2026 | AUM | $44,400,044 | $69,398,075 | increased by$24,998,031 |
| May 1, 2025 vs Oct 1, 2022 | AUM | $51,904,000 | $44,400,044 | decreased by$7,503,956 |
| May 1, 2025 vs Oct 1, 2022 | Accounts | 25 | 21 | decreased by4 |
| Apr 1, 2022 | AUM | $66,944,000 | $51,904,000 | decreased by$15,040,000 |
| Apr 1, 2022 | Accounts | 24 | 25 | increased by1 |
| Apr 1, 2021 | Registration | — | APPROVED |
On Form 5500, an adviser usually appears as a plan service provider (Schedule C), not the plan sponsor.
See plans that list “TANAKA CAPITAL” as a service provider on 5500mcp →Matched by name only — Form ADV and Form 5500 share no identifier, and names are searched loosely (“TANAKA CAPITAL” 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.