Summa Corp.
- Regulatory AUM
- $587M
- Discretionary
- $398M
- Clients
- 76
- Avg AUM / client
- $7.7M
- Accounts
- 77
- Employees
- 2
AUM over time
Annual snapshots from Form ADV filings · as of May 04, 2026
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| Individuals (non-high net worth) | 38 | $36.5M | 6.21% |
| High net worth individuals | 35 | $403M | 68.6% |
| Other investment advisers | 1 | $133M | 22.6% |
| Corporations and other businesses | 2 | $15.2M | 2.59% |
People (3)
roster as of Jul 20, 2026| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Maria Luisa Bernaldo De Quiros | President/Chief Compliance Officer | Jan 2001 (26y) | 75% or more | |
| Rodrigo Gerardo De La Garza | Director / Secretary | Jun 2019 (7y) | Less than 5% | |
| Alonso Valenzuela Del Rio | Registered representative | May 2026 (0y) |
Undisclosed: 0% – 25% of the firm is not attributable from the filed Schedule A bands.
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) | 05/04/2026 | 969 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
- • Fixed fees
Services
- • Portfolio management for individuals/small businesses
- • Selection of other advisers
- • Other services
Custody
Reported custodians
- Interactive Brokers $157M (27% of AUM) May 2026
- J.P. Morgan $138M (24% of AUM) May 2026
- Banco Santander (Brasil) S.A. $120M (20% of AUM) May 2026
- UBS $68.7M (12% of AUM) May 2026
- Pershing $32.3M (12% of AUM) Mar 2021
- Goldman Sachs $20.0M (12% of AUM) Mar 2020
- Union Bancaire Privee, Ubp S.A. $14.2M (15% of AUM) Jun 2019
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: May 04, 2026.
View current Form ADV (SEC/IAPD) ↗