Hoku Inc.

Tokyo, Kanto, Japan · CRD 310865

Hedge fund managerExempt reporting

Hoku Inc. is an exempt reporting adviser based in Tokyo, Kanto, Japan that reports managing 1 hedge fund on Form ADV. Its private funds, of all types, hold $28.5 million in gross assets.

Regulatory assets under management: —Form ADV Item 5.F
Gross assets of private funds: $28.5 millionAll private fund types, Form ADV
Hedge funds managed: 11 private funds in total
Employees: —Form ADV Item 5.A
Registration: Exempt reporting adviserCRD 310865
Latest Form ADV: 02/25/2026Disciplinary disclosures: none reported

Fund vehicles: feeder funds and single-deal vehicles (1)

Fund

Gross assets

Minimum

Owners

Adviser

Topwater Mayfly Fund LLC

Delaware, United StatesHedge fund

Gross assets$28.5M

Minimum$1.0M

Owners2

AdviserHoku Inc.

Feeder funds invest through a master fund; single-deal vehicles (SPVs, co-investments, series) hold one investment.

From SEC filings. Firm data comes from the SEC's Form ADV data as of Oct 2, 2026; performance estimates come from Form 13F. AltMountain has not verified this information, and it is not an offer, solicitation or recommendation. Full disclosures