Data / Investment advisers / California / Longtail Alpha, LLC
Longtail Alpha, LLC, Newport Beach, CA: $822 million AUM, SEC registered investment adviser
Longtail Alpha, LLC is an SEC registered investment adviser with its main office in Newport Beach, California and reports $822 million in regulatory assets under management in its Form ADV filed February 2, 2026. Its clients include pooled investment vehicles, individuals and corporations and other businesses. It is paid through a percentage of assets under management, hourly charges and fixed fees. It advises 8 private funds.
SpecStream is the live web data engine for teams and agents. It reads the SEC's Form ADV files every month, and this page is that reading, keyed on the CRD number. Ask for the advisers you track by state, city, size, client type or private funds, and new registrations and filings arrive in your sheet, CRM, Slack or agent as the SEC publishes them.
- Registration
- SEC registered investment adviser
- CRD number
- 282615
- SEC file number
- 801-112265
- SEC status
- Approved, effective January 8, 2018
- Main office
- 500 Newport Center Drive Suite 820, Newport Beach, CA 92660
- Phone
- (949) 706-8092
- Website
- longtailalpha.com
- Regulatory AUM
- $822,446,436 in the Form ADV filed February 2, 2026
- Discretionary AUM
- $822,446,436
- Accounts
- 12
- Employees
- 9, of which 6 give investment advice
- Form of organization
- Limited Liability Company
- Paid through
- a percentage of assets under management, hourly charges, fixed fees, performance based fees, other fees
- Private funds
- 8: 8 hedge funds
- Gross assets of private funds
- $916,834,591
- Form ADV Item 11 disclosures
- None reported
- Latest Form ADV filing
- February 2, 2026
- SEC record
- Investment Adviser Public Disclosure
Clients
Client types the adviser reports in Form ADV item 5.D, with the AUM it attributes to each.
| Client type | Clients | AUM |
|---|---|---|
| Pooled investment vehicles | 9 | $760.3 million |
| Individuals (other than high net worth individuals) | Fewer than 5 | $36.3 million |
| Corporations or other businesses | Fewer than 5 | $17.3 million |
| State or municipal government entities | Fewer than 5 | $8.5 million |
AUM in the SEC's monthly files
Each change in the AUM the adviser reported across the monthly SEC files held here, with the first file that shows the new value.
| First in the file of | AUM | Form ADV filed |
|---|---|---|
| February 2, 2026 | $822.4 million | January 30, 2026 |
| December 1, 2025 | $725.8 million | March 6, 2025 |
Other advisers in Newport Beach
| Adviser | City | AUM | Private funds | Source |
|---|---|---|---|---|
| Shorecliff Asset Management Company LLC | Newport Beach | $1.41 billion | 3 | adviserinfo.sec.gov |
| Affinity Investment Advisors, LLC | Newport Beach | $1.16 billion | Not listed | adviserinfo.sec.gov |
| Knightsbridge Wealth Management | Newport Beach | $1.12 billion | 1 | adviserinfo.sec.gov |
| Spinnaker Investment Group, LLC | Newport Beach | $1.07 billion | Not listed | adviserinfo.sec.gov |
| Tarbox Family Office, Inc. | Newport Beach | $953.7 million | Not listed | adviserinfo.sec.gov |
| RS Crum Inc. | Newport Beach | $720.7 million | Not listed | adviserinfo.sec.gov |
| Westshore Wealth | Newport Beach | $662.4 million | Not listed | adviserinfo.sec.gov |
| Purus Wealth Management, LLC | Newport Beach | $658.1 million | Not listed | adviserinfo.sec.gov |
Also on SpecStream
- Investment advisers in Newport Beach, CA
- Investment advisers in California
- Advisers with $500 million to $1 billion in AUM
- Advisers serving pooled investment vehicles
- Advisers serving individuals
- Advisers that manage private funds
- Longtail Alpha, LLC on the SEC's adviser search
Updated November 7, 2026. Read from the SEC's Form ADV data files for investment advisers. Public data published by the US Securities and Exchange Commission (US government work). Advisers report these values themselves in Form ADV, and neither the SEC nor the states approve or guarantee them. AUM is regulatory assets under management as the adviser reported it in Form ADV item 5.F, which can differ from the AUM a firm quotes elsewhere. Exempt reporting advisers do not report AUM. Office address, phone and website are the adviser's main office as filed; a firm that files its main office as a private residence shows no street address or phone. An Item 11 disclosure is a reported event, not a finding about the firm today. Details for each firm are on the SEC's Investment Adviser Public Disclosure site. This page uses SEC data and is not endorsed or certified by the SEC. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.