Cornerstone Alternatives Llc
- Regulatory AUM
- $159M
- Discretionary
- $3.4M
- Clients
- 410
- Avg AUM / client
- $389K
- Accounts
- 423
- Employees
- 6
AUM over time
Reported AUM from Form ADV filings, plotted by filing date · as of Mar 30, 2026
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| High net worth individuals | 410 | $159M | 100.0% |
People (4)
roster as of Jul 20, 2026| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Robertson, Mark, Harvey | Owner | Aug 2014 (12y) | ≈ 56.25% – 100% via Crowddd Llc | |
| Goldberg, Andrew, Colin | Managing Partner And Chief Compliance Officer | Jan 2024 (3y) | Less than 5% | |
| Jeffery Mathew Cooper | Registered representative | Dec 2024 (2y) | ||
| Paul Castillano Szilassy | Registered representative | Jan 2025 (2y) |
Entity owners (Schedule A/B)
| Entity | Title / status | Since | Sch. | Ownership |
|---|---|---|---|---|
| Crowddd Llc | Owner | Jan 2024 | A | 75% or more |
Undisclosed: 0% – 25% of the firm is not attributable from the filed Schedule A bands.
Estimated effective ownership (look-through of filed bands):
- Robertson, Mark, Harvey: 75% – 100% of Crowddd Llc × 75% – 100% direct ≈ 56.25% – 100% of the firm
Roster from the IAPD representatives feed; ownership and acquisition dates from Form ADV Schedule A/B. "Since" is the earliest filed registration or acquisition date.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 03/30/2026 | 956 KB | View · PDF · Source ↗ |
Archived copies of the firm's regulatory filings, versioned by content hash.
Disciplinary disclosures
No disciplinary events reported on the firm's latest Form ADV filing.
How they charge
- • Percentage of assets under management
- • Hourly charges
Services
- • Portfolio management for individuals/small businesses
- • Portfolio management for businesses/institutional clients
Custody
Reported custodians
- Charles Schwab & Co. $157M (98% of AUM) Mar 2026
Amounts as reported in ADV Item 5.K.(3) (custodians holding 10%+ of SMA assets).
Firm reports it does not have custody of client funds or securities (Item 9.A).
Source
All data on this page comes from this firm's Form ADV filings, reproduced without modification. Latest filing: Mar 30, 2026.
View current Form ADV (SEC/IAPD) ↗