AltMountain

One Rock Capital

New York, NY · CRD 160972
Private equity manager

One Rock Capital is an SEC-registered investment adviser based in New York, NY that reports managing 17 private funds on Form ADV, including 17 private equity funds. It reports $9.7 billion in regulatory assets under management. Its private funds hold $9.6 billion in gross assets.

Regulatory assets under management
$9.7 billionForm ADV Item 5.F
Gross assets of private funds
$9.6 billionAll private fund types, Form ADV
Private funds managed
17PE 17 · VC 0 · hedge 0
Employees
74Form ADV Item 5.A
Registration
SEC-registered adviserCRD 160972
Latest Form ADV
03/31/2026Disciplinary disclosures: none reported

Private equity funds filing Form D (2)

Fund
First sale
Raised
Investors
Minimum
Offering
One Rock Capital Partners IV, LP
New York, NY
First saleMar 2023
Raised$2.2B
Investors124
MinimumNone set
Offering506(b)
One Rock Emerald Fund, LP
New York, NY
First saleMar 2023
Raised$526M
Investors103
MinimumNone set
Offering506(b)

Matched to this firm by the fund names and related persons in each Form D. The list may be incomplete.

Private funds reported on Form ADV (6)

Fund
Gross assets
Minimum
Owners
Adviser
One Rock Capital Partners III, LP
Delaware, United StatesPrivate equity fund
Gross assets$3.2B
Minimum$5.0M
Owners202
AdviserOne Rock Capital
One Rock Capital Partners II, LP
Delaware, United StatesPrivate equity fund
Gross assets$1.5B
Minimum$5.0M
Owners78
AdviserOne Rock Capital
One Rock Capital Partners IV, LP
Delaware, United StatesPrivate equity fund
Gross assets$1.3B
Minimum$5.0M
Owners64
AdviserOne Rock Capital
One Rock Capital Partners, LP
Delaware, United StatesPrivate equity fund
Gross assets$464M
Minimum$5.0M
Owners55
AdviserOne Rock Capital
One Rock Emerald Fund, LP
Delaware, United StatesPrivate equity fund
Gross assets$371M
Minimum$5.0M
Owners37
AdviserOne Rock Capital
Snap Investor Holdings LLC
Delaware, United StatesPrivate equity fund
Gross assets$1.9M
Minimum$5.0M
Owners3
AdviserOne Rock Capital

As reported in the adviser's Form ADV filed Dec 4, 2024. Funds also listed from Form D are shown above.

Fund vehicles: feeder funds and single-deal vehicles (8)

Fund
Gross assets
Minimum
Owners
Adviser
Orcp III Triton Co-Investors, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$2.1B
Minimum$5.0M
Owners50
AdviserOne Rock Capital
Orcp II Iris Co-Investors, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$618M
Minimum$5.0M
Owners16
AdviserOne Rock Capital
Orcp IV Capripack Co-Investors, L.P.
Cayman IslandsPrivate equity fund
Gross assets$403M
Minimum$5.0M
Owners34
AdviserOne Rock Capital
Orcp III Birch Co-Investors, L.P.
Delaware, United StatesPrivate equity fund
Gross assets$145M
Minimum$5.0M
Owners18
AdviserOne Rock Capital
Orcp II Neon Co-Investors, L.p
Delaware, United StatesPrivate equity fund
Gross assets$113M
Minimum$5.0M
Owners14
AdviserOne Rock Capital
Orcp II Process Solutions Co-Investors, L.p
Delaware, United StatesPrivate equity fund
Gross assets$111M
Minimum$5.0M
Owners17
AdviserOne Rock Capital
Orcp IV Cayman Co-Investor 1, L.P.
Cayman IslandsPrivate equity fund
Gross assets$33.3M
Minimum$5.0M
Owners2
AdviserOne Rock Capital
Orcp IV Capripack Co-Investors 2, L.P.
Cayman IslandsPrivate equity fund
Gross assets$11.0M
Minimum$5.0M
Owners2
AdviserOne Rock Capital

Feeder funds invest through a master fund; single-deal vehicles (SPVs, co-investments, series) hold one investment.

From SEC filings. Firm data comes from the SEC's Form ADV data. AltMountain has not verified this information, and it is not an offer, solicitation or recommendation. Full disclosures