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Starboard X Master Fund Ltd

Hedge FundFund ID 805-8052401020Cayman Islands
Gross assets
$1.31B
Min. investment
$1M
Beneficial owners
43
Size rank
Top 6%
Audited
Yes
Structure
Master

About this fund

Starboard X Master Fund Ltd is a hedge fund managed by Starboard Value LP. The fund reports $1.3 billion in gross assets, placing it among the top 6% of private funds by size. The stated minimum investment is $1 million. Its financial statements are audited annually. Private funds are not required to publicly disclose returns; Form ADV reports assets, structure, and service providers, shown above.

Fund details

Fund ID805-8052401020
Fund typeHedge Fund
3(c)(1) exclusionNo
3(c)(7) exclusionYes
Master fundYes
Feeder fundNo
Fund of fundsNo
Relies on exemption from registrationYes
Annual auditYes
Prepared per GAAPYes
Sub-advisedNo
% of assets independently valued100%

Other funds from this manager

FundTypeGross assets
Starboard Value and Opportunity Master Fund LtdHedge$4.15B

Frequently asked questions

How large is Starboard X Master Fund Ltd?

Starboard X Master Fund Ltd reports $1.3 billion in gross assets, among the top 6% of private funds by size.

What is the minimum investment for Starboard X Master Fund Ltd?

The stated minimum investment is $1 million.

Who manages Starboard X Master Fund Ltd?

Starboard X Master Fund Ltd is managed by Starboard Value LP.

Does Starboard X Master Fund Ltd disclose returns?

No. Private funds are not required to publicly disclose performance. Form ADV reports assets, structure, and service providers.

Manager

S
New York, NY

Service providers

Prime broker
Custodian
Administrator
Marketer

Reported gross assets

$1.31B▲ 8%
Feb '25 — $1.21BMar '25 — $1.21BApr '25 — $1.21BMay '25 — $1.21BJun '25 — $1.21BJul '25 — $1.21BAug '25 — $1.21BSep '25 — $1.21BOct '25 — $1.21BNov '25 — $1.21BDec '25 — $1.21BJan '26 — $1.21BFeb '26 — $1.21BMar '26 — $1.31BApr '26 — $1.31BMay '26 — $1.31BJun '26 — $1.31B
Feb '25Form ADV, monthlyJun '26

How this fund compares

Gross assetsTop 6%
Larger than 94% of 67,041 private funds
Gross assets vs Hedge FundsTop 12%
Larger than 88% of 12,442 hedge funds
Minimum investmentTop 33%
Higher than 67% of funds reporting a minimum

Investor base

Adviser & related persons5%
Funds of funds5%
Non-U.S. persons88%
Share of the fund's beneficial ownership reported on Form ADV. Categories can overlap.