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New Mountain Capital, L.L.C.

● SEC registered since 2012CRD 161394SEC# 801-74051New York, NY
Export (members)
Ranks #305 of 6,004 private fund managers by regulatory AUM.
Reg. AUM
$46.41B
Fund GAV
$31.24B
Private funds
14
Employees
235
Accounts
14
Location
New York, NY

New Mountain Capital, L.L.C. assets under management

New Mountain Capital, L.L.C. operates as an SEC-registered investment adviser based in New York, NY. The firm has been registered since 2012. It reports $46.4 billion in regulatory assets under management and employs 235 people. New Mountain Capital, L.L.C. manages 14 private funds with combined gross assets of $31.2 billion, including New Mountain Partners VI, L.P. By regulatory assets, it ranks 305 of 6,004 private fund managers.

New Mountain Capital, L.L.C. private funds

14 funds · $31.24B GAV
FundTypeGross assetsMin.
New Mountain Partners VI, L.P.Private Equity$13.38B$10M
New Mountain Partners VII, L.P.Private Equity$6.07B$10M
New Mountain Dat Continuation Fund, L.P.Private Equity$2.54B$10M
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New Mountain Capital, L.L.C. owners & executives

10 reported
NameTitleOwnershipSince
Adam Brett Weinstein ControlPresident, Managing Director, Chief Operating OfficerUnder 5%2015
John Michael HauslerManaging Director And Chief Financial OfficerUnder 5%2025
Joseph Wesley HartswellManaging Director And Chief Compliance OfficerUnder 5%2015
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Frequently asked questions

How much does New Mountain Capital, L.L.C. manage?

New Mountain Capital, L.L.C. reports $46.4 billion in regulatory assets under management on its Form ADV.

How many private funds does New Mountain Capital, L.L.C. manage?

New Mountain Capital, L.L.C. manages 14 private funds with combined gross assets of $31.2 billion.

How many employees does New Mountain Capital, L.L.C. have?

New Mountain Capital, L.L.C. reports 235 employees.

Where is New Mountain Capital, L.L.C. located?

New Mountain Capital, L.L.C. is based in New York, NY and has been SEC-registered since 2012.

Does New Mountain Capital, L.L.C. disclose fund performance?

New Mountain Capital, L.L.C. is not required to publicly disclose fund returns. Form ADV filings include assets, ownership, and service providers, shown above.

Contact & registration

Address1633 Broadway, 48th Fl., New York, NY 10019
Phone212-720-0300
Office hours8:30a.m. - 6:00p.m.
SEC regionNew York Regional Office (NYRO)
CIK1407718
Discloses disciplinary historyNo

Regulatory AUM

$46.41B▲ 8%
Mar '25 — $42.95BApr '25 — $42.95BMay '25 — $42.95BJun '25 — $42.95BJul '25 — $42.95BAug '25 — $42.95BSep '25 — $42.95BOct '25 — $42.95BNov '25 — $42.95BDec '25 — $42.95BJan '26 — $42.95BFeb '26 — $42.95BMar '26 — $46.41BApr '26 — $46.41BMay '26 — $46.41BJun '26 — $46.41B
Mar '25Form ADV, monthlyJun '26

How this firm compares

Regulatory AUMTop 3%
Larger than 97% of 16,271 advisers
AUM vs fund managersTop 5%
Larger than 95% of 6,004 private-fund managers
Number of fundsTop 18%
More funds than 82% of fund managers
EmployeesTop 3%
More than 97% of 16,825 advisers

Assets under management

$46.41Bregulatory AUM
Discretionary $46.41B