Flagstone Financial Advisors, Inc.
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ADV data as of Mar 05, 2026
- Regulatory AUM
- $84.0M
- Discretionary
- $84.0M
- Clients
- 56
- Avg AUM / client
- $1.5M
- Accounts
- 210
- Employees
- 2
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| Individuals (non-high net worth) | 30 | $10.6M | 12.6% |
| High net worth individuals | 25 | $71.0M | 84.5% |
| Charitable organizations | 1 | $2.4M | 2.91% |
People (2)
roster as of Jul 20, 2026| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Steven Charles Knous | Registered representative | Personal Financial Specialist | Jul 1999 (27y) | |
| Martin Knous | Registered representative | CFP | Dec 2018 (8y) |
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) | 03/05/2026 | 1020 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
- • Fixed fees
Services
- • Financial planning services
- • Portfolio management for individuals/small businesses
- • Portfolio management for businesses/institutional clients
- • Publication of periodicals or newsletters
Custody
Reported custodians
- Charles Schwab & Co. $83.2M (99% 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 05, 2026.
View current Form ADV (SEC/IAPD) ↗