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667, L.P.

Hedge FundFund ID 805-7902319250Delaware, United States
Gross assets
$2.34B
Min. investment
$40M
Beneficial owners
13
Size rank
Top 3%
Audited
Yes
Structure
Standalone

About this fund

667, L.P. is a hedge fund managed by Baker Bros. Advisors LP. The fund reports $2.3 billion in gross assets, placing it among the top 3% of private funds by size. The stated minimum investment is $40 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 ID805-7902319250
Fund typeHedge Fund
3(c)(1) exclusionNo
3(c)(7) exclusionYes
Master fundNo
Feeder fundNo
Fund of fundsNo
Relies on exemption from registrationNo
Annual auditYes
Prepared per GAAPYes
Sub-advisedNo
% of assets independently valued98%

Other funds from this manager

FundTypeGross assets
Baker Brothers Life Sciences, L.P.Hedge$25.81B

Frequently asked questions

How large is 667, L.P.?

667, L.P. reports $2.3 billion in gross assets, among the top 3% of private funds by size.

What is the minimum investment for 667, L.P.?

The stated minimum investment is $40 million.

Who manages 667, L.P.?

667, L.P. is managed by Baker Bros. Advisors LP.

Does 667, 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
Custodian
Administrator

Reported gross assets

$2.34B▲ 56%
Mar '25 — $1.49BApr '25 — $1.49BMay '25 — $1.49BJun '25 — $1.49BJul '25 — $1.49BAug '25 — $1.49BSep '25 — $1.49BOct '25 — $1.49BNov '25 — $1.49BDec '25 — $1.49BJan '26 — $1.49BFeb '26 — $1.49BMar '26 — $2.34BApr '26 — $2.34BMay '26 — $2.34BJun '26 — $2.34B
Mar '25Form ADV, monthlyJun '26

How this fund compares

Gross assetsTop 3%
Larger than 97% of 67,041 private funds
Gross assets vs Hedge FundsTop 7%
Larger than 93% of 12,442 hedge funds
Minimum investmentTop 3%
Higher than 97% of funds reporting a minimum

Investor base

Adviser & related persons16%
Funds of funds%
Non-U.S. persons%
Share of the fund's beneficial ownership reported on Form ADV. Categories can overlap.