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Cas Investment Partners, LLC

● SEC registered since 2017CRD 170071SEC# 801-111983Westport, CT
Export (members)
Ranks #1,963 of 6,004 private fund managers by regulatory AUM.
Reg. AUM
$2.45B
Fund GAV
$2.45B
Private funds
2
Employees
3
Accounts
4
Location
Westport, CT

Cas Investment Partners, LLC assets under management

Cas Investment Partners, LLC is a registered investment adviser overseen by the SEC based in Westport, CT. The firm has been registered since 2017. It reports $2.4 billion in regulatory assets under management and employs 3 people. Cas Investment Partners, LLC manages 2 private funds with combined gross assets of $2.4 billion, including Sosin Master, LP. By regulatory assets, it ranks 1,963 of 6,004 private fund managers.

Cas Investment Partners, LLC private funds

2 funds · $2.45B GAV
FundTypeGross assetsMin.
Sosin Master, LPHedge$1.56B$1M
Cswr Partners, LPHedge$891.4M

Cas Investment Partners, LLC owners & executives

1 reported
NameTitleOwnershipSince
Clifford A Sosin ControlManaging Member / Chief Compliance OfficerOver 75%2012

Frequently asked questions

How much does Cas Investment Partners, LLC manage?

Cas Investment Partners, LLC reports $2.4 billion in regulatory assets under management on its Form ADV.

How many private funds does Cas Investment Partners, LLC manage?

Cas Investment Partners, LLC manages 2 private funds with combined gross assets of $2.4 billion.

How many employees does Cas Investment Partners, LLC have?

Cas Investment Partners, LLC reports 3 employees.

Where is Cas Investment Partners, LLC located?

Cas Investment Partners, LLC is based in Westport, CT and has been SEC-registered since 2017.

Does Cas Investment Partners, LLC disclose fund performance?

Cas Investment Partners, LLC is not required to publicly disclose fund returns. Form ADV filings include assets, ownership, and service providers, shown above.

Contact & registration

Address8 Wright Street, Floor 1, Westport, CT 06880
Phone(212) 804-7660
Office hours10a.m. - 6p.m.
SEC regionBoston Regional Office (BRO)
Discloses disciplinary historyNo

Regulatory AUM

$2.45B▲ 35%
Mar '25 — $1.81BApr '25 — $1.81BMay '25 — $1.81BJun '25 — $1.81BJul '25 — $1.81BAug '25 — $1.81BSep '25 — $1.81BOct '25 — $1.81BNov '25 — $1.81BDec '25 — $1.81BJan '26 — $1.81BFeb '26 — $1.81BMar '26 — $2.45BApr '26 — $2.45BMay '26 — $2.45BJun '26 — $2.45B
Mar '25Form ADV, monthlyJun '26

How this firm compares

Regulatory AUMTop 20%
Larger than 80% of 16,271 advisers
AUM vs fund managersTop 33%
Larger than 67% of 6,004 private-fund managers
Number of fundsTop 63%
More funds than 37% of fund managers
EmployeesTop 77%
More than 23% of 16,825 advisers

Assets under management

$2.45Bregulatory AUM
Discretionary $2.45B

Service providers