Prometheus Wealth Management Sam
- Regulatory AUM
- $1.2B
- Discretionary
- $261M
- Clients
- 149
- Avg AUM / client
- $8.3M
- Accounts
- 230
- Employees
- 9
AUM over time
Annual snapshots from Form ADV filings · as of Mar 05, 2026
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| Individuals (non-high net worth) | 58 | $527M | 42.4% |
| High net worth individuals | 70 | $550M | 44.3% |
| Pension and profit sharing plans | Fewer than 5 clients | $578K | 0.05% |
| Insurance companies | 8 | $115M | 9.28% |
| Corporations and other businesses | 13 | $50.0M | 4.02% |
People (6)
| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Letort, Matthieu | Owner/Managing Partner | Dec 2017 (9y) | 10% – 25% | |
| Manoni, Nicolas | Owner | Dec 2017 (9y) | 10% – 25% | |
| Marcucci, Alain | Owner | Dec 2017 (9y) | 10% – 25% | |
| Costanza, Marilena | Chief Complianceofficer | May 2019 (7y) | Less than 5% | |
| Ciarapica, Frank | Owner/Chieffinancial Officer | Apr 2022 (4y) | Less than 5% | |
| Boyer, Cyrille | Chief Investmentofficer | Sep 2023 (3y) | Less than 5% |
Entity owners (Schedule A/B)
| Entity | Title / status | Since | Sch. | Ownership |
|---|---|---|---|---|
| H2 O Monaco | Owner | Dec 2017 | A | 50% – 75% |
| H2 O Monaco | Owner | Dec 2017 | B | ≈ 25% – 56.25% via H2 O Monaco |
Undisclosed: 0% – 20% of the firm is not attributable from the filed Schedule A bands.
Estimated effective ownership (look-through of filed bands):
- H2 O Monaco: 50% – 75% of H2 O Monaco × 50% – 75% direct ≈ 25% – 56.25% of the firm
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.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 03/05/2026 | 1.23 MB | View · PDF · Source ↗ |
Archived copies of the firm's regulatory filings, versioned by content hash.
Disciplinary disclosures
Allegations: BETWEEN APRIL 2015 AND NOVEMBER 2019 H2O LLP FAILED: 1) TO CONDUCT ITS BUSINESS WITH DUE SKILL, CARE AND DILIGENCE ANDTO ACT IN THE BEST INTERESTS OF THE COLLECTIVE INVESTMENT SCHEMES ; 2) TO TAKE REASONABLE CARE TO ORGANISE AND CONTROL ITS AFFAIRS RESPONSIBLY AND EFFECTIVELY, WITH ADEQUATE RISK MANAGEMENT SYSTEMS ; AND 3) TO DEAL WITH THE AUTHORITY IN AN OPEN AND COOPERATIVE MANNER. Status: Final Sanction Detail: H2O LLP HAS AGREED TO VOLUNTARILY APPLY TO CANCEL ITS REGULATORY PERMISSIONS AND CEASE TO CONDUCT REGULATED ACTIVITIES WITHIN THE UK BY 31 DECEMBER 2024. Summary: H2O GROUP HAS VOLUNTARILY SECURED THE SUM OF EUR250 MILLION THAT WILL BE PAID TO THE CURRENT UNITHOLDERS IN THE SIDE-POCKETED FUNDS BY 03.31.2025 AND H2O LLP WILL VOLUNTARILY APPLY TO CANCEL ITS UK REGULATORY PERMISSIONS UNDER PART 4A OF THE ACT BY DECEMBER 31, 2024.
Allegations: BREACHES COMMITTED IN THE MANAGEMENT OF FUNDS RELATING TO INVESTMENTS IN NOT ELIGIBLE SECURITIES DUE TO A LACK OFNECESSARY LIABILITY TO MEET REDEMPTION REQUESTS. NO COMPLIANCE WITH THE INVESTMENT RATIO APPLICABLE TO MUTUAL FUNDS (UCITS). Status: On Appeal Sanction Detail: AGAINST THE CEO A FIVE YEAR-BAN ON OPERATING AS A MANAGER, DIRECTLY OR BY DELEGATION. Summary: AMF HAS IMPOSED A FINANCIAL PENALTY ON H2O LLP RELATING TO THE INVESTMENTS (CURRENTLY SUBJECT TO APPEAL BY H2O LLP).
Disclosure text reproduced verbatim from the firm's own Form ADV filings.
How they charge
- • Percentage of assets under management
- • Commissions
- • Performance-based fees
Services
- • Portfolio management for individuals/small businesses
- • Selection of other advisers
Custody
Reported custodians
- UBS $405M (33% of AUM) Mar 2026
- Edmond De Rothschild Monaco $346M (28% of AUM) Mar 2026
- Julius Baer $288M (23% of AUM) Mar 2026
Amounts as reported in ADV Item 5.K.(3) (custodians holding 10%+ of SMA assets).
Firm reports it does not have 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: Mar 05, 2026.
View current Form ADV (SEC/IAPD) ↗