Keystone Partners Master Fund B, L.P.
Hedge FundFund ID 805-8835427940Cayman Islands
Gross assets
$104M
Min. investment
$10M
Beneficial owners
2
Size rank
Top 43%
Audited
Yes
Structure
Master
About this fund
Keystone Partners Master Fund B, L.P. is a hedge fund managed by Newmarket Investment Management, LP. The fund reports $104 million in gross assets, placing it among the top 43% 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 ID | 805-8835427940 |
| Fund type | Hedge Fund |
| 3(c)(1) exclusion | No |
| 3(c)(7) exclusion | Yes |
| Master fund | Yes |
| Feeder fund | No |
| Fund of funds | No |
| Relies on exemption from registration | Yes |
| Annual audit | Yes |
| Prepared per GAAP | Yes |
| Sub-advised | No |
| % of assets independently valued | 10% |
Other funds from this manager
| Fund | Type | Gross 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 |
See all 14 funds from this manager — unlock the full record.
Join to unlock · $37/moFrequently asked questions
How large is Keystone Partners Master Fund B, L.P.?
Keystone Partners Master Fund B, L.P. reports $104 million in gross assets, among the top 43% of private funds by size.
What is the minimum investment for Keystone Partners Master Fund B, L.P.?
The stated minimum investment is $10 million.
Who manages Keystone Partners Master Fund B, L.P.?
Keystone Partners Master Fund B, L.P. is managed by Newmarket Investment Management, LP.
Does Keystone 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
N
Philadelphia, PA
Service providers
Reported gross assets
$104M▲ 1%
Mar '25Form ADV, monthlyJun '26
How this fund compares
Gross assetsTop 43%
Larger than 57% of 67,041 private funds
Gross assets vs Hedge FundsTop 56%
Larger than 44% 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. persons%
Share of the fund's beneficial ownership reported on Form ADV. Categories can overlap.