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Onex Partners VI B launches indefinite private equity fund in New York
New fund · Private equity / buyout · Pre-first close · NEW YORK, NY · Form D filed 2026-11-02 · sponsor: Onex Partners · Follow Onex Partners VI B LP →
Onex Partners VI B LP, a Delaware limited partnership, has filed to raise an indefinite amount for a private equity fund. The fund is in pre-first-close stage with no investors or capital raised to date.
Pre-first closeFirst filing by this entityrepeat_fund_numeralPrivate equity / buyout
How this compares
- Across 501 private equity / buyout sponsors with more than one launch on EDGAR, the median gap between consecutive funds is 5 months.
Computed from every Form D fund launch on EDGAR since late 2024, not sampled. Amounts are the stated offering size; indefinite offerings are excluded.
People on the filing
| MATTHEW MURPHY | Executive Officer, Promoter |
| N/A ONEX PARTNERS VI B GP LP | Executive Officer |
| N/A ONEX PARTNERS VI B GP LLC | Executive Officer |
| N/A ONEX PARTNERS MANAGER LP | Executive Officer |
| AMIR MOTAMEDI | Director |
[email protected] · observed Work emails for the people on the filing, where the firm publishes or patterns them, labelled by confidence — subscribers
Signed by AMIR MOTAMEDI, AUTHORIZED SIGNATORY OF THE GP OF THE GP OF THE ISSUER.
Why now — by persona
- Fund administrator:A concrete reason to call this issuer this week, citing the filing. Subscribe to unlock
- Fund audit & tax:A concrete reason to call this issuer this week, citing the filing. Subscribe to unlock
- Fund-formation counsel:A concrete reason to call this issuer this week, citing the filing. Subscribe to unlock
Filing contact
The issuer's phone number and address from the filing are shown to subscribers. See plans.