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MARSTONE LLC
CRD 164810File 801-78264
APPROVED
Retail clients
Filing as of Aug 4, 2026
Feed vintage Aug 17, 2026
Regulatory AUM
$2.8M
Bottom 25% of cohort (national)
Discretionary AUM
$2.8M
Clients
142
180 accounts
Employees
1
Identity & registration
ADV Item 1- Organization form
- Limited Liability Company
- Firm type
- Registered
- SEC region
- LARO
- Registration date
- Jul 10, 2013
- Principal office
- Not reported
- Phone
- 212.203.7790
Assets & accounts
ADV Item 5F- Total regulatory AUM
- $2.8M
- Discretionary AUM
- $2.8M
- Non-discretionary AUM
- $0
- Discretionary accounts
- 180
- Non-discretionary accounts
- 0
- Total accounts
- 180
- AUM per client
- $20K
Clients by type
ADV Item 5D| Client type | Clients | AUM |
|---|---|---|
| Other investment advisers | Fewer than 5 | $827K |
| Individuals (other than high net worth individuals) | 139 | $2.0M |
Compensation & activities
ADV Items 5E, 5GCompensation
- A percentage of assets under your management
Advisory activities
- Portfolio management for businesses
- Portfolio management for individuals and/or small businesses
Custody
ADV Item 9- Firm Custody Cash
- No
- Firm Custody Assets
- No
- Firm Custody Clients
- No
- Firm Custody Securities
- No
- Related Person Custody Cash
- No
- Related Person Custody Assets
- No
- Related Person Custody Clients
- No
- Related Person Custody Securities
- No
Disclosure events
ADV Item 11This firm answered no to every Item 11 disclosure question in this filing.
Filed changes
| Date | Field | From | To |
|---|---|---|---|
| Aug 12, 2026 | Registration | — | APPROVED |
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.