J Star Co., Ltd.
SEC-registered
Investment Adviser
CRD 287541
· SEC file 802-110241
· Chiyoda, Tokyo
· WWW.J-STAR.CO.JP
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ADV data as of Dec 24, 2025
- Regulatory AUM
- —
- Discretionary
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- Clients
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- Avg AUM / client
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- Accounts
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- Employees
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Private funds (14)
Reported in Form ADV Section 7.B.(1), filing of Dec 2024 · $647M combined gross assets
| Fund | Type | Domicile | Gross assets | Owners |
|---|---|---|---|---|
| J Star No.4 D, Lp | Private Equity Fund | Cayman Islands | $95.6M | 7 |
| J Star No.4 C, Lp | Private Equity Fund | Cayman Islands | $92.6M | 3 |
| J Star No.4 B, Lp | Private Equity Fund | Cayman Islands | $87.3M | 6 |
| Flag Holdings, Lp | Private Equity Fund | Cayman Islands | $49.8M | 2 |
| J Star No.3 Jf, Lp. | Private Equity Fund | Cayman Islands | $49.0M | 13 |
| J Star No.5 C, Lp | Private Equity Fund | Cayman Islands | $45.4M | 5 |
| J Star No.5 B, Lp | Private Equity Fund | Cayman Islands | $40.5M | 9 |
| J Star No.3 Gf Lp. | Private Equity Fund | Cayman Islands | $38.4M | 6 |
| J Star No.3 Jc, Lp | Private Equity Fund | Cayman Islands | $36.4M | 5 |
| Kohaku, Lp | Private Equity Fund | Cayman Islands | $29.7M | 3 |
| Ruri, Lp | Private Equity Fund | Cayman Islands | $26.2M | 4 |
| Cor Holding, Lp | Private Equity Fund | Cayman Islands | $19.7M | 2 |
| J Star No.5 D, Lp | Private Equity Fund | Cayman Islands | $18.4M | 4 |
| Menou, Lp | Private Equity Fund | Cayman Islands | $18.4M | 3 |
Private funds (14, $647M gross assets)
| Fund | Type | Gross assets | Min. investment | Owners |
|---|---|---|---|---|
| J Star No.4 D, Lp | Private Equity Fund | $95.6M | $0 | 7 |
| J Star No.4 C, Lp | Private Equity Fund | $92.6M | $0 | 3 |
| J Star No.4 B, Lp | Private Equity Fund | $87.3M | $0 | 6 |
| Flag Holdings, Lp | Private Equity Fund | $49.8M | $0 | 2 |
| J Star No.3 Jf, Lp. | Private Equity Fund | $49.0M | $0 | 13 |
| J Star No.5 C, Lp | Private Equity Fund | $45.4M | $0 | 5 |
| J Star No.5 B, Lp | Private Equity Fund | $40.5M | $0 | 9 |
| J Star No.3 Gf Lp. | Private Equity Fund | $38.4M | $0 | 6 |
| J Star No.3 Jc, Lp | Private Equity Fund | $36.4M | $0 | 5 |
| Kohaku, Lp | Private Equity Fund | $29.7M | $0 | 3 |
| Ruri, Lp | Private Equity Fund | $26.2M | $0 | 4 |
| Cor Holding, Lp | Private Equity Fund | $19.7M | $0 | 2 |
| J Star No.5 D, Lp | Private Equity Fund | $18.4M | $0 | 4 |
| Menou, Lp | Private Equity Fund | $18.4M | $0 | 3 |
From Form ADV Section 7.B private fund reporting.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 12/24/2025 | 3.09 MB | View · PDF · Source ↗ |
Archived copies of the firm's regulatory filings, versioned by content hash.
Disciplinary disclosures
No disciplinary events reported on the firm's latest Form ADV filing.
How they charge
Not reported.
Custody
Firm reports it does not have custody of client funds or securities (Item 9.A).
No custodian data reported or mined yet.
Source
All data on this page comes from this firm's Form ADV filings, reproduced without modification. Latest filing: Dec 24, 2025.
View current Form ADV (SEC/IAPD) ↗