Key facts
- MAD RIVER INVESTORS is a hedge fund based in BOSTON, MA.
- MAD RIVER INVESTORS reports $1.2M in regulatory assets under management across 2 private funds, per its SEC Form ADV (2026-03).
Registered with the SEC
Form ADV · 2026-03 · CRD 130585- Regulatory AUM
- $1.2M
- Private fund assets
- $69.7M
- Private funds
- 2 · 2 hedge
- Staff
- 6
- Registered office
- BOSTON, MA
- SEC status
- Approved
Reports custody of client assets.
Source: SEC Investment Adviser Public Disclosure, Form ADV (registered as MRM-HORIZON ADVISORS, LLC).
Free account
See more of the book
- ·Watchlist + alerts for MAD RIVER INVESTORS's activity
Create free account
No card required
Portfolio
Portfolio — not yet on record
No portfolio companies for MAD RIVER INVESTORS are on record yet. Positions surface from round participations, filings, and coverage.
Pro members can request priority coverage with a 48-hour turnaround.
Frequently asked
- What is MAD RIVER INVESTORS's AUM?
- MAD RIVER INVESTORS manages approximately $1.2M in assets.