AltMountain

Onex Partners VI LP

New York, NY · CIK 1933633

Onex Partners VI LP is a private equity fund based in New York, New York. Its most recent Form D, filed Nov 2, 2026, reports no sales yet. The filing does not set a minimum investment. It relies on the Section 3(c)(7) exclusion, so investors generally must be qualified purchasers. The offering uses Rule 506(b), which does not permit general solicitation. Related persons named in the filing include Matthew Murphy; Onex Partners VI GP LP; Onex Partners VI GP Limited.

Total raised
$0Cumulative sales reported on Form D
Investors
0
First sale
—
Minimum investment
None set
Who can invest
Qualified purchasersSection 3(c)(7): generally $5M+ in investments
Offering exemption
Rule 506(b)No general advertising
Key people and entities
Matthew Murphy; Onex Partners VI GP LP; Onex Partners VI GP Limited
Latest Form D
Nov 2, 2026

From SEC filings, not verified. This page republishes the fund's Form D as filed. It is not an offer, solicitation or recommendation, and AltMountain has not reviewed the fund. “Raised” is cumulative sales, not current assets or performance. Returns are not part of SEC filings. Private funds are speculative, illiquid and generally limited to accredited investors or qualified purchasers. Full disclosures · Request a correction

Questions about Onex Partners VI LP

What is the minimum investment for Onex Partners VI LP?

Onex Partners VI LP's latest Form D, filed Nov 2, 2026, does not set a minimum investment. Managers can still require one in the offering documents.

Who can invest in Onex Partners VI LP?

Onex Partners VI LP is generally open only to qualified purchasers (generally individuals with at least $5 million in investments), because it relies on Section 3(c)(7). It uses Rule 506(b), which does not allow general advertising.

How much has Onex Partners VI LP raised?

Onex Partners VI LP's latest Form D, filed Nov 2, 2026, reports no sales yet.

Where is Onex Partners VI LP based?

Onex Partners VI LP is based in New York, New York.

Size compared with every private equity fund

This fund hasn't reported any sales yet.

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