One Stone Partners L.L.C.
- Regulatory AUM
- $290M
- Discretionary
- $290M
- Clients
- 9
- Avg AUM / client
- $32.2M
- Accounts
- 9
- Employees
- 3
AUM over time
Reported AUM from Form ADV filings, plotted by filing date · as of Mar 26, 2026
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| Pooled investment vehicles (non-investment companies) | 9 | $290M | 100.0% |
Private funds (4)
Reported in Form ADV Section 7.B.(1), filing of Mar 2024 · $264M combined gross assets
| Fund | Type | Domicile | Gross assets | Owners |
|---|---|---|---|---|
| One Stone Energy Partners L.P. | Private Equity Fund | Cayman Islands | $243M | 26 |
| One Stone Holdings Lp master | Private Equity Fund | Delaware | $20.8M | 26 |
| One Stone Holdings Ii Lp master | Private Equity Fund | Delaware | $0 | 26 |
| One Stone Holdings Iii Lp master | Private Equity Fund | Delaware | $0 | 26 |
People (3)
| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Hajim, Edmund, A (Mi) | Member | Oct 2009 (17y) | 5% – 10% | |
| Israel, Robert, Irving | Managing Member & Chief Compliance Officer | Oct 2009 (17y) | 25% – 50% | |
| Gluzman, Vadim | Managing Member | Feb 2012 (15y) | 25% – 50% |
Undisclosed: 0% – 45% of the firm is not attributable from the filed Schedule A bands.
Roster from the IAPD representatives feed; ownership and acquisition dates from Form ADV Schedule A/B. "Since" is the earliest filed registration or acquisition date.
Private funds (4, $264M gross assets)
| Fund | Type | Gross assets | Min. investment | Owners |
|---|---|---|---|---|
| One Stone Energy Partners L.P. | Private Equity Fund | $243M | $1.0M | 26 |
| One Stone Holdings Lp | Private Equity Fund | $20.8M | $1.0M | 26 |
| One Stone Holdings Ii Lp | Private Equity Fund | $0 | $1.0M | 26 |
| One Stone Holdings Iii Lp | Private Equity Fund | $0 | $1.0M | 26 |
From Form ADV Section 7.B private fund reporting.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 03/26/2026 | 1.64 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
- • Percentage of assets under management
- • Performance-based fees
Services
- • Portfolio management for pooled investment vehicles
Custody
Firm reports having 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: Mar 26, 2026.
View current Form ADV (SEC/IAPD) ↗