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LONGTAIL ALPHA, LLC
CRD 282615File 801-112265
APPROVED
Custody
Filing as of Feb 2, 2026
Feed vintage Oct 1, 2026
Regulatory AUM
$822.4M
Above cohort median (national)
Discretionary AUM
$822.4M
Clients
9
12 accounts
Employees
9
Above cohort median in CA
Identity & registration
ADV Item 1- Organization form
- Limited Liability Company
- Firm type
- Registered
- SEC region
- LARO
- Registration date
- Jan 8, 2018
- Principal office
- 500 NEWPORT CENTER DRIVE, SUITE 820, NEWPORT BEACH, CA, 92660
- Phone
- 949 706 8092
- Website
- HTTP://WWW.LONGTAILALPHA.COM
Assets & accounts
ADV Item 5F- Total regulatory AUM
- $822.4M
- Discretionary AUM
- $822.4M
- Non-discretionary AUM
- $0
- Discretionary accounts
- 12
- Non-discretionary accounts
- 0
- Total accounts
- 12
- AUM per client
- $91.4M
Clients by type
ADV Item 5D| Client type | Clients | AUM |
|---|---|---|
| Other | Fewer than 5 | $17.3M |
| Pooled investment vehicles | 9 | $760.3M |
| State or municipal government entities | Fewer than 5 | $8.5M |
| Individuals (other than high net worth individuals) | Fewer than 5 | $36.3M |
Compensation & activities
ADV Items 5E, 5GCompensation
- Other
- Fixed fees
- Hourly charges
- Other (described) — ASSETS UNDER PROTECTION; TOTAL NOTIONAL EXPOSURE COMMITMENT
- Performance-based fees
- A percentage of assets under your management
Advisory activities
- Other
- Publications
- Other advisory activities
- Portfolio management for other
- Portfolio management for businesses
- Portfolio management for pooled investment vehicles
- Portfolio management for individuals and/or small businesses
Custody
ADV Item 9- Firm Custody Cash
- Yes
- Firm Custody Assets
- No
- Firm Custody Clients
- No
- Firm Custody Securities
- Yes
- Related Person Custody Cash
- Yes
- Related Person Custody Assets
- No
- Related Person Custody Clients
- No
- Related Person Custody Securities
- Yes
Disclosure events
ADV Item 11This firm answered no to every Item 11 disclosure question in this filing.
Filed changes
| Date | Field | From | To | Change |
|---|---|---|---|---|
| Feb 1, 2026 | Employees | 7 | 9 | increased by2 |
| Feb 1, 2026 | Clients | 8 | 9 | increased by1 |
| Feb 1, 2026 | AUM | $725,836,223 | $822,446,436 | increased by$96,610,213 |
| Feb 1, 2026 | Accounts | 11 | 12 | increased by1 |
| May 1, 2025 vs Oct 1, 2022 | Clients | 9 | 8 | decreased by1 |
| May 1, 2025 vs Oct 1, 2022 | AUM | $634,556,718 | $725,836,223 | increased by$91,279,505 |
| Apr 1, 2022 | AUM | $618,053,354 | $634,556,718 | increased by$16,503,364 |
| Sep 1, 2021 | AUM | $315,046,270 | $618,053,354 | increased by$303,007,084 |
| Apr 1, 2021 | Registration | — | APPROVED |
On Form 5500, an adviser usually appears as a plan service provider (Schedule C), not the plan sponsor.
See plans that list “LONGTAIL ALPHA” as a service provider on 5500mcp →Matched by name only — Form ADV and Form 5500 share no identifier, and names are searched loosely (“LONGTAIL ALPHA” may also match similarly-named firms). Confirm identity against each filing.
Every value above is reproduced from this firm's Form ADV filing. Fields the firm left blank are shown as “Not reported” rather than filled in from other sources.