Onex Partners Manager Lp
SEC-registered
Private Fund Manager · Large ($10B–$100B)
CRD 160923
· SEC file 801-74110
· Toronto
· www.linkedin.com
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ADV data as of May 15, 2026
- Regulatory AUM
- $22.5B
- Discretionary
- $22.5B
- Clients
- 35
- Avg AUM / client
- $642M
- Accounts
- 35
- Employees
- 180
AUM over time
$10.0B
$22.5B
Dec 2011
May 2026
Annual snapshots from Form ADV filings · as of May 15, 2026
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| Pooled investment vehicles (non-investment companies) | 35 | $22.5B | 100.0% |
Private funds (31)
View all →Reported in Form ADV Section 7.B.(1), filing of Mar 2024 · $21.0B combined gross assets
| Fund | Type | Domicile | Gross assets | Owners |
|---|---|---|---|---|
| Onex Partners V Lp | Private Equity Fund | Cayman Islands | $7.5B | 64 |
| Onex Partners Iv Lp | Private Equity Fund | Cayman Islands | $4.1B | 76 |
| Onex Partners V B Lp | Private Equity Fund | Cayman Islands | $2.4B | 17 |
| Onex Partners Iii Lp master | Private Equity Fund | Delaware | $1.0B | 94 |
| Onex Fox Co Invest Lp | Private Equity Fund | Cayman Islands | $868M | 20 |
| Onex Fox Lp | Private Equity Fund | Cayman Islands | $803M | 17 |
| Onex Partners Ranger Cv Lp | Private Equity Fund | Delaware | $795M | 16 |
| Onex Partners V Pv Lp | Private Equity Fund | Delaware | $580M | 9 |
| Onex Fox Ii Lp | Private Equity Fund | Cayman Islands | $495M | 1 |
| Onex North Star Co Invest Lp | Private Equity Fund | Delaware | $435M | 22 |
| Onex Partners V Pv B Lp | Private Equity Fund | Delaware | $382M | 3 |
| Onex Od Co Invest Lp | Private Equity Fund | Delaware | $321M | 21 |
| Onex Fox Iii Lp | Private Equity Fund | Cayman Islands | $222M | 16 |
| Onex Camelot Co Invest Lp | Private Equity Fund | Cayman Islands | $153M | 38 |
| Onex Peppermint Co Invest Lp | Private Equity Fund | Delaware | $130M | 50 |
Retirement plan clients
Plans that reported this firm as an investment service provider on Form 5500 Schedule C.
| Plan | Location | Plan year |
|---|---|---|
| U. S. Retirement Plan Mars, Incorporated | 2024 |
People (7)
| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Schwartz, Gerald, Wilfred | Chairman (Onex Corporation) | May 1992 (34y) | ≈ 3.75% – 75% via New Oncan Canadian Holdings Ltd. | |
| Govan, Christopher, A | Chief Financial Officer (Onex Corporation) | Mar 2015 (11y) | Less than 5% | |
| Feder, Yonah, Elimelech | Chief Compliance Officer | Jul 2018 (8y) | Less than 5% | |
| Le Blanc, Robert, Michael | Chief Executive Officer (Onex Corporation) | May 2023 (3y) | Less than 5% | |
| Camens, Sam, Michael | Director (Onex Partners Manager Gp Ulc) | Nov 2023 (3y) | Less than 5% | |
| Tawfiq, Popatia, Nmn | Co Head Of Onex Partners | Nov 2023 (3y) | Less than 5% | |
| Wright, Nigel, Stewart | Co Head Of Onex Partners And Director (Onex Partners Manager Gp Ulc) | Nov 2023 (3y) | Less than 5% |
Entity owners (Schedule A/B)
| Entity | Title / status | Since | Sch. | Ownership |
|---|---|---|---|---|
| Omi Management U.S. Limited Partnership | Limited Partner Of Onex Partners Manager Lp | Nov 2003 | A | 75% or more |
| Onex Partners Manager Gp Ulc | General Partner Of Onex Partners Manager Lp | Nov 2003 | A | Less than 5% |
| Onex Partners Manager Gp Llc | Shareholder | Feb 2008 | B | ≈ 0% – 5% via Onex Partners Manager Gp Ulc |
| Omi Management U.S. Limited Partnership | Shareholder | Jan 2008 | B | ≈ 0% – 5% via Onex Partners Manager Gp Llc |
| Omi Holdings Lp | Shareholder | Dec 2023 | B | ≈ 56.25% – 100% via Omi Management U.S. Limited Partnership |
| Onex Corporation | Shareholder | Oct 1993 | B | ≈ 42.19% – 100% via Omi Holdings Lp |
| Afic Capital Ltd. | Shareholder | Apr 2016 | B | ≈ 8.9% – 75% via 1597257 Ontario Inc. |
| Oncan Canadian Holdings Ltd. | Shareholder | Mar 2016 | B | ≈ 6.67% – 75% via Afic Capital Ltd. |
| 1597257 Ontario Inc. | Shareholder | Dec 2016 | B | ≈ 11.87% – 75% via New Pco Ii Investments Ltd. |
| New Oncan Canadian Holdings Ltd. | Shareholder | Mar 2013 | B | ≈ 5.01% – 75% via Oncan Canadian Holdings Ltd. |
| New Pco Ii Investments Ltd. | Shareholder | Mar 2017 | B | ≈ 15.82% – 75% via Omil Holdings Limited |
| Onex Us Holdings Llc | Shareholder | Dec 2023 | B | ≈ 42.19% – 100% via Omi Holdings Lp |
| Omil Holdings Limited | Shareholder | Feb 2003 | B | ≈ 21.09% – 75% via Onex Corporation |
| 1381280 Ontario Inc. | General Partner | Nov 1999 | B | GP / trustee / elected manager of Omi Management U.S. Limited Partnership (indirect) |
| Omi Holdings Gp Llc | General Partner | Dec 2023 | B | GP / trustee / elected manager of Omi Holdings Lp (indirect) |
Undisclosed: 0% – 25% of the firm is not attributable from the filed Schedule A bands.
Estimated effective ownership (look-through of filed bands):
- Schwartz, Gerald, Wilfred: 75% – 100% of New Oncan Canadian Holdings Ltd. × 75% – 100% of Oncan Canadian Holdings Ltd. × 75% – 100% of Afic Capital Ltd. × 75% – 100% of 1597257 Ontario Inc. × 75% – 100% of New Pco Ii Investments Ltd. × 75% – 100% of Omil Holdings Limited × 50% – 75% of Onex Corporation × 75% – 100% of Omi Holdings Lp × 75% – 100% of Omi Management U.S. Limited Partnership × 75% – 100% direct ≈ 3.75% – 75% of the firm
- Onex Partners Manager Gp Llc: 75% – 100% of Onex Partners Manager Gp Ulc × 0% – 5% direct ≈ 0% – 5% of the firm
- Omi Management U.S. Limited Partnership: 75% – 100% of Onex Partners Manager Gp Llc × 75% – 100% of Onex Partners Manager Gp Ulc × 0% – 5% direct ≈ 0% – 5% of the firm
- Omi Holdings Lp: 75% – 100% of Omi Management U.S. Limited Partnership × 75% – 100% direct ≈ 56.25% – 100% of the firm
- Onex Corporation: 75% – 100% of Omi Holdings Lp × 75% – 100% of Omi Management U.S. Limited Partnership × 75% – 100% direct ≈ 42.19% – 100% of the firm
- Afic Capital Ltd.: 75% – 100% of 1597257 Ontario Inc. × 75% – 100% of New Pco Ii Investments Ltd. × 75% – 100% of Omil Holdings Limited × 50% – 75% of Onex Corporation × 75% – 100% of Omi Holdings Lp × 75% – 100% of Omi Management U.S. Limited Partnership × 75% – 100% direct ≈ 8.9% – 75% of the firm
- Oncan Canadian Holdings Ltd.: 75% – 100% of Afic Capital Ltd. × 75% – 100% of 1597257 Ontario Inc. × 75% – 100% of New Pco Ii Investments Ltd. × 75% – 100% of Omil Holdings Limited × 50% – 75% of Onex Corporation × 75% – 100% of Omi Holdings Lp × 75% – 100% of Omi Management U.S. Limited Partnership × 75% – 100% direct ≈ 6.67% – 75% of the firm
- 1597257 Ontario Inc.: 75% – 100% of New Pco Ii Investments Ltd. × 75% – 100% of Omil Holdings Limited × 50% – 75% of Onex Corporation × 75% – 100% of Omi Holdings Lp × 75% – 100% of Omi Management U.S. Limited Partnership × 75% – 100% direct ≈ 11.87% – 75% of the firm
- New Oncan Canadian Holdings Ltd.: 75% – 100% of Oncan Canadian Holdings Ltd. × 75% – 100% of Afic Capital Ltd. × 75% – 100% of 1597257 Ontario Inc. × 75% – 100% of New Pco Ii Investments Ltd. × 75% – 100% of Omil Holdings Limited × 50% – 75% of Onex Corporation × 75% – 100% of Omi Holdings Lp × 75% – 100% of Omi Management U.S. Limited Partnership × 75% – 100% direct ≈ 5.01% – 75% of the firm
- New Pco Ii Investments Ltd.: 75% – 100% of Omil Holdings Limited × 50% – 75% of Onex Corporation × 75% – 100% of Omi Holdings Lp × 75% – 100% of Omi Management U.S. Limited Partnership × 75% – 100% direct ≈ 15.82% – 75% of the firm
- Onex Us Holdings Llc: 75% – 100% of Omi Holdings Lp × 75% – 100% of Omi Management U.S. Limited Partnership × 75% – 100% direct ≈ 42.19% – 100% of the firm
- Omil Holdings Limited: 50% – 75% of Onex Corporation × 75% – 100% of Omi Holdings Lp × 75% – 100% of Omi Management U.S. Limited Partnership × 75% – 100% direct ≈ 21.09% – 75% 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 (31, $21.0B gross assets)
| Fund | Type | Gross assets | Min. investment | Owners |
|---|---|---|---|---|
| Onex Partners V Lp | Private Equity Fund | $7.5B | $10.0M | 64 |
| Onex Partners Iv Lp | Private Equity Fund | $4.1B | $10.0M | 76 |
| Onex Partners V B Lp | Private Equity Fund | $2.4B | $10.0M | 17 |
| Onex Partners Iii Lp | Private Equity Fund | $1.0B | $10.0M | 94 |
| Onex Fox Co Invest Lp | Private Equity Fund | $868M | $0 | 20 |
| Onex Fox Lp | Private Equity Fund | $803M | $0 | 17 |
| Onex Partners Ranger Cv Lp | Private Equity Fund | $795M | $0 | 16 |
| Onex Partners V Pv Lp | Private Equity Fund | $580M | $10.0M | 9 |
| Onex Fox Ii Lp | Private Equity Fund | $495M | $0 | 1 |
| Onex North Star Co Invest Lp | Private Equity Fund | $435M | $0 | 22 |
| Onex Partners V Pv B Lp | Private Equity Fund | $382M | $10.0M | 3 |
| Onex Od Co Invest Lp | Private Equity Fund | $321M | $0 | 21 |
| Onex Fox Iii Lp | Private Equity Fund | $222M | $0 | 16 |
| Onex Camelot Co Invest Lp | Private Equity Fund | $153M | $0 | 38 |
| Onex Peppermint Co Invest Lp | Private Equity Fund | $130M | $0 | 50 |
| Onex Partners Iv Pv Lp | Private Equity Fund | $123M | $10.0M | 6 |
| Onex Iso Co Invest Lp | Private Equity Fund | $108M | $0 | 21 |
| Onex Fox Gs Lp | Private Equity Fund | $106M | $0 | 63 |
| Onex Fox Gs Feeder Lp | Private Equity Fund | $91.4M | $0 | 57 |
| Onex Navigator Co Invest Lp | Private Equity Fund | $86.9M | $0 | 5 |
| Onex Richmond Co Invest Lp | Private Equity Fund | $81.3M | $0 | 29 |
| Onex Partners V Select Lp | Private Equity Fund | $71.1M | $10.0M | 31 |
| Onex Partners Iv Select Lp | Private Equity Fund | $19.5M | $10.0M | 31 |
| Onex Partners Ii Lp | Private Equity Fund | $11.7M | $20.0M | 71 |
| Onex Partners Iii Pv Lp | Private Equity Fund | $9.5M | $10.0M | 3 |
Top 25 of 31 funds by gross assets · all funds
From Form ADV Section 7.B private fund reporting.
Retirement plans served (1)
| Plan | Sponsor | Participants | Plan assets | As of |
|---|---|---|---|---|
| U. S. Retirement Plan | Mars, Incorporated | 8,193 | $5.1B | 01/01/2024 |
From Form 5500 service-provider disclosures.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 05/15/2026 | 8.51 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: May 15, 2026.
View current Form ADV (SEC/IAPD) ↗