Orion Resource Partners (Usa), Lp
- Regulatory AUM
- $7.9B
- Discretionary
- $7.3B
- Clients
- 25
- Avg AUM / client
- $316M
- Accounts
- 25
- Employees
- 59
AUM over time
Annual snapshots from Form ADV filings · as of May 14, 2026
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| Pooled investment vehicles (non-investment companies) | 25 | $7.9B | 100.0% |
Private funds (13)
Reported in Form ADV Section 7.B.(1), filing of Mar 2024 · $7.3B combined gross assets
| Fund | Type | Domicile | Gross assets | Owners |
|---|---|---|---|---|
| Orion Mine Finance Fund Iii Lp master | Private Equity Fund | Cayman Islands | $2.4B | 69 |
| Orion Mine Finance Fund Ii Lp master | Private Equity Fund | Bermuda | $1.8B | 65 |
| Orion Mineral Royalty Fund Lp | Private Equity Fund | Delaware | $760M | 17 |
| Orion Mine Finance Fund Iv Lp master | Private Equity Fund | Cayman Islands | $493M | 49 |
| Orion Mine Finance (Master) Fund I A Lp master | Private Equity Fund | Bermuda | $448M | 21 |
| Orion Mine Finance Co Fund Iii Lp | Private Equity Fund | Cayman Islands | $430M | 17 |
| Orion Mine Finance Co Fund Ii Lp | Private Equity Fund | Delaware | $410M | 52 |
| Orion Mine Finance (Master) Fund I Lp master | Private Equity Fund | Bermuda | $404M | 51 |
| Orion Mine Finance Co Fund Iv Lp | Private Equity Fund | Cayman Islands | $50.0M | 1 |
| Omr Sands I Lp | Private Equity Fund | Delaware | $40.0M | 2 |
| Omr Co Fund I Lp | Other Private Fund | Delaware | $30.5M | 5 |
| Orion Industrial Ventures Fund I Lp master | Venture Capital Fund | Delaware | $25.0M | 5 |
| Orion Co Investments Iv Lp | Other Private Fund | Bermuda | $2.3M | 2 |
People (4)
| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Lewnowski, Oskar, Paul | Chief Executive Officer | Jun 2005 (21y) | ≈ 0% – 5% via Orion Resource Partners Gp Llc | |
| Lewnowski, Eleanor, Mary O | Trustee | Dec 2012 (14y) | GP / trustee / elected manager of The Langdale Trust (indirect) | |
| Gashler, Richard, Andrew | Chief Compliance Officer | Oct 2015 (11y) | Less than 5% | |
| Feeley, Jeffrey, Scott | Chief Financial Officer | Jul 2017 (9y) | Less than 5% |
Entity owners (Schedule A/B)
| Entity | Title / status | Since | Sch. | Ownership |
|---|---|---|---|---|
| Orion Resource Partners Lp | Limited Partner | May 2022 | A | 75% or more |
| Orion Resource Partners Gp Llc | General Partner | Dec 2005 | A | Less than 5% |
| The Langdale Trust | Limited Partner | May 2022 | B | ≈ 56.25% – 100% via Orion Resource Partners Lp |
| Orion Resource Partners Gp Llc | General Partner | May 2012 | B | GP / trustee / elected manager of Orion Resource Partners Lp (indirect) |
| Us Trust Company Of Delaware | Trustee | Dec 2012 | B | GP / trustee / elected manager of The Langdale Trust (indirect) |
Undisclosed: 0% – 25% of the firm is not attributable from the filed Schedule A bands.
Estimated effective ownership (look-through of filed bands):
- Lewnowski, Oskar, Paul: 75% – 100% of Orion Resource Partners Gp Llc × 0% – 5% direct ≈ 0% – 5% of the firm
- The Langdale Trust: 75% – 100% of Orion Resource Partners Lp × 75% – 100% direct ≈ 56.25% – 100% 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.
Private funds (13, $7.3B gross assets)
| Fund | Type | Gross assets | Min. investment | Owners |
|---|---|---|---|---|
| Orion Mine Finance Fund Iii Lp | Private Equity Fund | $2.4B | $10.0M | 69 |
| Orion Mine Finance Fund Ii Lp | Private Equity Fund | $1.8B | $10.0M | 65 |
| Orion Mineral Royalty Fund Lp | Private Equity Fund | $760M | $20.0M | 17 |
| Orion Mine Finance Fund Iv Lp | Private Equity Fund | $493M | $10.0M | 49 |
| Orion Mine Finance (Master) Fund I A Lp | Private Equity Fund | $448M | $10.0M | 21 |
| Orion Mine Finance Co Fund Iii Lp | Private Equity Fund | $430M | $0 | 17 |
| Orion Mine Finance Co Fund Ii Lp | Private Equity Fund | $410M | $0 | 52 |
| Orion Mine Finance (Master) Fund I Lp | Private Equity Fund | $404M | $10.0M | 51 |
| Orion Mine Finance Co Fund Iv Lp | Private Equity Fund | $50.0M | $10.0M | 1 |
| Omr Sands I Lp | Private Equity Fund | $40.0M | $0 | 2 |
| Omr Co Fund I Lp | Other Private Fund | $30.5M | $0 | 5 |
| Orion Industrial Ventures Fund I Lp | Venture Capital Fund | $25.0M | $5.0M | 5 |
| Orion Co Investments Iv Lp | Other Private Fund | $2.3M | $0 | 2 |
From Form ADV Section 7.B private fund reporting.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 05/14/2026 | 6.54 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
Reported custodians
- J.P. Morgan $568M (10% of AUM) Sep 2019
- Societe Generale $133M (2% of AUM) Sep 2019
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: May 14, 2026.
View current Form ADV (SEC/IAPD) ↗