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Avidity Private Master Fund I LP

Hedge FundFund ID 805-6000109239Cayman Islands
Gross assets
$480.3M
Min. investment
$10M
Beneficial owners
18
Size rank
Top 16%
Audited
Yes
Structure
Master

About this fund

Avidity Private Master Fund I LP is a hedge fund managed by Avidity Partners Management LP. The fund reports $480.3 million in gross assets, placing it among the top 16% 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 ID805-6000109239
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
Avidity Master Fund LPHedge$554.3M
Avidity Capital Fund II LPHedge$24.6M

Frequently asked questions

How large is Avidity Private Master Fund I LP?

Avidity Private Master Fund I LP reports $480.3 million in gross assets, among the top 16% of private funds by size.

What is the minimum investment for Avidity Private Master Fund I LP?

The stated minimum investment is $10 million.

Who manages Avidity Private Master Fund I LP?

Avidity Private Master Fund I LP is managed by Avidity Partners Management LP.

Does Avidity Private Master Fund I LP disclose returns?

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

Service providers

Prime broker
Administrator
Auditor

Reported gross assets

$480.3M▲ 19%
Mar '25 — $402.3MApr '25 — $402.3MMay '25 — $402.3MJun '25 — $402.3MJul '25 — $402.3MAug '25 — $402.3MSep '25 — $402.3MOct '25 — $402.3MNov '25 — $379.7MDec '25 — $379.7MJan '26 — $379.7MFeb '26 — $379.7MMar '26 — $480.3MApr '26 — $480.3MMay '26 — $480.3MJun '26 — $480.3M
Mar '25Form ADV, monthlyJun '26

How this fund compares

Gross assetsTop 16%
Larger than 84% of 67,041 private funds
Gross assets vs Hedge FundsTop 26%
Larger than 74% of 12,442 hedge funds
Minimum investmentTop 6%
Higher than 94% of funds reporting a minimum

Investor base

Adviser & related persons5%
Funds of funds%
Non-U.S. persons41%
Share of the fund's beneficial ownership reported on Form ADV. Categories can overlap.