Marble Bar Asset Management Llp
- Regulatory AUM
- $3.6B
- Discretionary
- $3.6B
- Clients
- 22
- Avg AUM / client
- $162M
- Accounts
- 22
- Employees
- 70
AUM over time
Reported AUM from Form ADV filings, plotted by filing date · as of Apr 02, 2026
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| Pooled investment vehicles (non-investment companies) | 21 | $3.6B | 100.0% |
| Corporations and other businesses | 1 | $536K | 0.02% |
Private funds (5)
Reported in Form ADV Section 7.B.(1), filing of Nov 2024 · $970M combined gross assets
| Fund | Type | Domicile | Gross assets | Owners |
|---|---|---|---|---|
| Lexcor Master Fund master | Hedge Fund | Cayman Islands | $533M | 134 |
| Eam Long Only Emerging Markets Master Fund Limited master | Hedge Fund | Cayman Islands | $189M | 55 |
| Navat Master Fund master | Hedge Fund | Cayman Islands | $158M | 76 |
| Chelodina Master Fund master | Hedge Fund | Cayman Islands | $61.0M | 8 |
| Mnav Cayman Fund Limited | Hedge Fund | Cayman Islands | $28.8M | 1 |
People (4)
| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Nathanson, Hilton, Darren | Founder Partner | Jul 2010 (16y) | 75% or more | |
| Benjamin, Jeremy, Frederick | Partner | Nov 2018 (8y) | 10% – 25% | |
| Bendersky, Martin | Head Of Strategic Initiatives | Aug 2024 (2y) | Less than 5% | |
| Benjamin, Saul, Justin | Chief Operating Officer, Chief Compliance Officer & Money Laundering Reporting Officer | Nov 2024 (2y) | Less than 5% |
Undisclosed: 0% – 15% 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 (5, $970M gross assets)
| Fund | Type | Gross assets | Min. investment | Owners |
|---|---|---|---|---|
| Lexcor Master Fund | Hedge Fund | $533M | $1.0M | 134 |
| Eam Long Only Emerging Markets Master Fund Limited | Hedge Fund | $189M | $5.0M | 55 |
| Navat Master Fund | Hedge Fund | $158M | $250K | 76 |
| Chelodina Master Fund | Hedge Fund | $61.0M | $250K | 8 |
| Mnav Cayman Fund Limited | Hedge Fund | $28.8M | $100K | 1 |
From Form ADV Section 7.B private fund reporting.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 04/02/2026 | 2.19 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
- • Portfolio management for businesses/institutional clients
Custody
Reported custodians
- J.P. Morgan $121M (5% of AUM) Jan 2025
- Scotiabank $114M (5% of AUM) Jan 2025
- Morgan Stanley $108M (4% of AUM) Jan 2025
- BNY Mellon $68.0M (3% of AUM) Aug 2025
- Goldman Sachs $32.0M (2% of AUM) Aug 2025
- Credit Suisse Ag $15.0M (2% of AUM) Jun 2019
- Citigroup Global Markets Inc. $14.0M (1% of AUM) Aug 2025
Amounts as reported in ADV Item 5.K.(3) (custodians holding 10%+ of SMA assets).
Firm reports having custody of client funds or securities (Item 9.A).
Source
All data on this page comes from this firm's Form ADV filings, reproduced without modification. Latest filing: Apr 02, 2026.
View current Form ADV (SEC/IAPD) ↗