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Onex Partners Manager

SEC-registered adviser since 2012Toronto, CanadaCRD 160923

$22.5B
AUM
35
Clients
See fees
Fee
39
Advisory staff

From Form ADV filed 27 August 2026 · data retrieved 15 October 2026SEC record

Onex Partners Manager is an investment adviser headquartered in Toronto, Canada, and registered with the SEC since 2012. Its clients include pooled investment vehicles.

Its services include portfolio management for pooled vehicles. Fee arrangements include a percentage of assets under management and performance-based fees. Omi Management U.S. Limited Partnership owns 75% or more of Onex Partners Manager.

Clients

Onex Partners Manager serves 35 clients. The average client has about $642 million with the firm.

Regulatory assets by client type
  • Pooled investment vehicles35 clients100%
Show client breakdown
Pooled investment vehicles
Clients
35
Regulatory AUM
$22,473,000,000
Share
100.0%
Avg. per client
$642.1M

Total

Clients
35
Regulatory AUM
$22,473,000,000
Share
100%
Avg. per client
$642.1M

What it does

Onex Partners Manager provides portfolio management for pooled vehicles. It is paid through a percentage of assets and performance-based fees.

Onex Partners Manager advises 35 private funds.

100.0% of assets ($22.47B across 35 accounts) are managed with discretion. 49% of clients are outside the U.S., and 0 clients received advice without assets under management last fiscal year.

Custodians

Onex Partners Manager has custody of $22.47B for 35 clients.

Managed account assets by custodian
  • All other custodians$22.47B100%

Ownership and leadership

Omi Management U.S. Limited Partnership owns 75% or more of Onex Partners Manager.

Who owns the firm
Onex Partners Manager LP· the adviser

  • Omi Management U.S. Limited Partnership

    Control person · since November 2003

    Owns 75% or more of Onex Partners Manager LP

  • Onex Partners Manager GP LLC

    Control person · since February 2008

    Owns 75% or more of Onex Partners Manager LP

Leadership

  • Matthew Murphy
    Chief Compliance Officer & General Counsel
  • Zachary Levitt
    Director (onex Partners Manager GP Ulc)
  • Amir Motamedi
    Director (onex Partners Manager GP Ulc)
  • Popatia Tawfiq
    Head of Onex Partners

Staff

  • 180 employees
  • 39 in advisory functions

Fees

Onex Partners Manager is paid through a percentage of assets under management and performance-based fees.

Onex Partners Manager’s fee rates are not included in this profile. Find its brochure on the SEC’s site.

Offices and registrations

Besides its headquarters, Onex Partners Manager has 2 offices, with 2 listed addresses in 1 state.

Listed office addresses by state

Choose a state to see its listed addresses.

Registration details

Legal name
Onex Partners Manager LP
Headquarters
161 Bay Street, 49th Floor, Toronto, Canada M5J 2S1
Phone
416-362-7711
Website
Not reported
SEC file
801-74110
Structure
Delaware limited partnership
Fiscal year end
December

This directory does not report disciplinary history, for any firm or individual, in either direction. The SEC publishes the complete record, including any disciplinary events, and it is the authoritative place to check one. See this firm's record on adviserinfo.sec.gov

Common questions

How many clients does Onex Partners Manager have?

Onex Partners Manager has 35 clients and manages $22.5 billion for them, as of August 2026.

Source: Form ADV Part 1A, Items 5.D and 5.F, filed 27 August 2026

What services does Onex Partners Manager offer?

Onex Partners Manager provides portfolio management for pooled vehicles.

Source: Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file

How many financial advisors does Onex Partners Manager have?

Onex Partners Manager has 0 investment adviser representatives registered with state securities authorities, out of 180 employees, and 39 perform investment advisory functions. None are registered representatives of a broker-dealer or licensed insurance agents.

Source: Form ADV Part 1A, Items 5.A and 5.B, from the SEC's 2 October 2026 data file

Who owns Onex Partners Manager?

Onex Partners Manager is owned through a chain of holding companies by Onex Corporation. Its direct owners are Omi Management U.S. Limited Partnership (75% or more) and Onex Partners Manager GP LLC (75% or more).

Source: Form ADV Part 1A, Schedules A and B, filed 27 August 2026

How does Onex Partners Manager get paid?

Onex Partners Manager is paid through a percentage of assets under management and performance-based fees. Its Form ADV lists no commissions among how it is paid.

Source: Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file

Sources

  1. Form ADV Part 1A, amendment filed 27 August 2026. Items 1, 5, 9, 11 and Schedules A, B and D.
  2. IAPD firm record, CRD 160923.

Retrieved 15 October 2026. All are published by the SEC and may have been amended since.

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This profile is compiled from public regulatory filings and is provided for informational purposes only. Niva Wealth is not affiliated with Onex Partners Manager LP and makes no representation about the quality of its services. Figures reflect the filing dates shown and may have changed. Ownership percentages are the bands reported to the SEC, not exact figures.