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Longwood Partners Master Fund B, L.P.

Hedge FundFund ID 805-2957217451Cayman Islands
Gross assets
$86.7M
Min. investment
$10M
Beneficial owners
2
Size rank
Top 46%
Audited
Yes
Structure
Master

About this fund

Longwood Partners Master Fund B, L.P. is a hedge fund managed by Newmarket Investment Management, LP. The fund reports $86.7 million in gross assets, placing it among the top 46% of private funds by size. The stated minimum investment is $10 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 ID805-2957217451
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 valued0%

Other funds from this manager

FundTypeGross assets
International Infrastructure Finance Company III, L.P.Private Equity$861.1M
Stonehurst Partners Master Fund C, L.P.Hedge$305.7M
Longwood Partners Master Fund B2, L.P.Hedge$304.4M
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Frequently asked questions

How large is Longwood Partners Master Fund B, L.P.?

Longwood Partners Master Fund B, L.P. reports $86.7 million in gross assets, among the top 46% of private funds by size.

What is the minimum investment for Longwood Partners Master Fund B, L.P.?

The stated minimum investment is $10 million.

Who manages Longwood Partners Master Fund B, L.P.?

Longwood Partners Master Fund B, L.P. is managed by Newmarket Investment Management, LP.

Does Longwood Partners Master Fund B, L.P. disclose returns?

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

Manager

Service providers

Prime broker
None reported
Custodian
Auditor
Marketer

Reported gross assets

$86.7M▼ 12%
Mar '25 — $98.3MApr '25 — $98.3MMay '25 — $98.3MJun '25 — $99.4MJul '25 — $99.4MAug '25 — $99.4MSep '25 — $99.4MOct '25 — $99.4MNov '25 — $99.4MDec '25 — $99.4MJan '26 — $99.4MFeb '26 — $99.4MMar '26 — $86.7MApr '26 — $86.7MMay '26 — $86.7MJun '26 — $86.7M
Mar '25Form ADV, monthlyJun '26

How this fund compares

Gross assetsTop 46%
Larger than 54% of 67,041 private funds
Gross assets vs Hedge FundsTop 59%
Larger than 41% of 12,442 hedge funds
Minimum investmentTop 6%
Higher than 94% of funds reporting a minimum

Investor base

Adviser & related persons%
Funds of funds%
Non-U.S. persons1%
Share of the fund's beneficial ownership reported on Form ADV. Categories can overlap.