Flagstone Financial Management provides financial planning, portfolio management for individuals and small businesses, portfolio management for institutions, pension consulting, business succession planning, education planning, estate planning, insurance, philanthropic planning, and tax planning. Financial planning was provided to 101–250 clients last fiscal year.
Flagstone Financial Management reports 353 clients. They include 221 individual clients, 126 high-net-worth individuals and 5 charitable organizations. Of its assets, 100.0% ($468M across 353 accounts) are managed with discretion. It advised 1 client without assets under management last fiscal year.
| Client type | Clients | Assets |
|---|---|---|
| Individuals (other than HNW) | 63% | 18% |
| High-net-worth individuals | 36% | 78% |
| Pension and profit-sharing plans | <1% | <1% |
| Charitable organizations | 1% | 3% |
Client breakdown and activity details
| Client type | Clients | Regulatory AUM | AUM share | Avg. per client |
|---|---|---|---|---|
| Individuals (other than HNW) | 221 | $84.1M | 18.0% | $381K |
| High-net-worth individuals | 126 | $366M | 78.2% | $2.9M |
| Pension and profit-sharing plans | Fewer than 5 | $2.09M | 0.4% | $2.09M |
| Charitable organizations | 5 | $15.9M | 3.4% | $3.18M |
| Total | 353 | $468M | 100% | — |
- Clients
- 221
- Regulatory AUM
- $84.1M
- AUM share
- 18.0%
- Avg. per client
- $381K
- Clients
- 126
- Regulatory AUM
- $366M
- AUM share
- 78.2%
- Avg. per client
- $2.9M
- Clients
- Fewer than 5
- Regulatory AUM
- $2.09M
- AUM share
- 0.4%
- Avg. per client
- $2.09M
- Clients
- 5
- Regulatory AUM
- $15.9M
- AUM share
- 3.4%
- Avg. per client
- $3.18M
Total
- Clients
- 353
- Regulatory AUM
- $468M
- AUM share
- 100%
- Avg. per client
- —
- Clients outside the U.S.
- 0%
- Clients advised without assets under management last fiscal year
- 1
- Private funds advised
- 0
- Financial planning clients last fiscal year
- 101–250
Flagstone Financial Management is paid through a percentage of assets under management, hourly charges and fixed fees (other than subscription fees). The reviewed brochures do not disclose an asset-based fee rate. Read the SEC-filed brochure. The brochure also prices one other service, listed under fee details.
Fee details and sources
Other fees
- Ongoing fixed-fee financial planning
- Ongoing fixed-fee financial planning starts with a $2,000 initial fee, then monthly fees of $400 to $2,000, negotiable. Free with $1,000,000 or more in household assets.
Flagstone Holdings, Inc. owns 75% or more of Flagstone Financial Management and is in turn owned by Michael Johnson (75% or more). The leadership team of Flagstone Financial Management includes Chief Compliance Officer Michael Johnson. It has 11 employees, 5 of them in advisory roles.
Leadership
Michael JohnsonChief Compliance Officer and Managing Member
Investment adviser representatives
10 representatives listed in the SEC register as of 9 October 2026.
Staff
- 11 employees
- 5 in advisory functions
- 9 state-registered reps
- Owns 75% or more of Flagstone Financial Management, LLC
Flagstone Holdings, Inc.
Control person · since September 2016
- Owns 75% or more of Flagstone Holdings, Inc.
Michael Johnson
Control person · since August 2010
Flagstone Financial Management’s regulatory assets grew 2.2× from $209M (March 2021) to $468M (April 2026); clients rose from 241 to 353 and employees from 8 to 11.
Figures from each annual filing
| Filed | Regulatory AUM | Clients | Employees | Offices |
|---|---|---|---|---|
| April 2026 | $468M | 353 | 11 | 1 |
| June 2025 | $375M | 324 | 10 | 1 |
| March 2024 | $318M | 303 | 6 | 1 |
| July 2023 | $252M | 279 | 6 | 1 |
| February 2022 | $261M | 263 | 8 | 1 |
| March 2021 | $209M | 241 | 8 | 1 |
Besides its headquarters, Flagstone Financial Management has 0 offices, with 1 listed address in Nebraska.
Nebraska · 1 listed address
- 5801 Hidcote DR. Ste 100, LincolnHQ
Contact and registration details
- Legal name
- Flagstone Financial Management, LLC
- Headquarters
- 5801 Hidcote DR. Ste 100, Lincoln, NE 68516
- Website
- flagstonefm.com
- Phone
- 402-413-0440
- SEC file
- 801-108722
- Founded
- 2016
- Structure
- Nebraska LLC
- Fiscal year end
- December
Flagstone Financial Management uses LPL Financial ($468M) as custodian for its separately managed accounts. Flagstone Financial Management does not have custody of client assets.
- LPL FinancialLPL Financial LLC · Boston, MA · $468M100%
At year end, Flagstone Financial Management’s separately managed accounts were mostly in funds (93%). Its reported 13F holdings for the quarter ended 30 June 2026 total $447M across 77 positions; the largest are Dimensional ETF Trust (28.5%), iShares TR (10.0%) and SPDR Index Shs Fds (7.5%).
What the accounts hold
- Stocks5%
- Funds93%
- Cash2%
Reported 13F holdings
- $447M
- Reported 13F value
- 77
- Positions
- 80.4%
- In the 10 largest
- +11.0%
- Value vs. prior quarter
- Dimensional ETF Trust · US Equi Mark ETF28.5%
- iShares TR · Ishs 5-10yr Invt10.0%
- SPDR Index Shs Fds · ST Str PO EX ETF7.5%
- SPDR Series Trust · ST Shor Corp. ETF6.3%
- SPDR Series Trust · ST Inter ETF5.7%
- American Centy ETF TR · US Sml CP Valu5.4%
- Vanguard Charlotte Fds · Total Int BD ETF5.4%
- Dimensional ETF Trust · Emerging Mkts CO4.3%
- American Centy ETF TR · US EQT ETF3.8%
- American Centy ETF TR · Intl Smcp Vlu3.4%
Together, the ten largest are 80.4% of reported value.
How many clients does Flagstone Financial Management have?
Flagstone Financial Management has 353 clients and manages $468 million for them, as of April 2026. They include 221 individual clients, 126 high-net-worth individuals and 5 charitable organizations.
Source: Form ADV Part 1A, Items 5.D and 5.F, filed 21 April 2026
What services does Flagstone Financial Management offer?
Flagstone Financial Management provides financial planning, portfolio management for individuals and small businesses, portfolio management for institutions, pension consulting, business succession planning, education planning, estate planning, insurance, philanthropic planning, and tax planning.
Source: Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file; Part 2A brochure, Item 4
Which custodians does Flagstone Financial Management use?
Flagstone Financial Management’s separately managed account assets are held at LPL Financial LLC (Boston, MA), with $468M. Only custodians holding at least a tenth of those assets are named.
Source: Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 21 April 2026
How many financial advisors does Flagstone Financial Management have?
Flagstone Financial Management has 9 investment adviser representatives registered with state securities authorities, out of 11 employees, and 5 perform investment advisory functions. None are registered representatives of a broker-dealer or licensed insurance agents.
Source: Form ADV Part 1A, Items 5.A and 5.B, from the SEC's 2 October 2026 data file
What does Flagstone Financial Management invest in?
At the end of its last fiscal year, Flagstone Financial Management’s separately managed accounts held 93% registered funds (mutual funds, ETFs, BDCs), 5% exchange-traded equities and 2% cash and equivalents.
Source: Form ADV Part 1A, Items 5.K.(1) and 7.B, from the SEC's 2 October 2026 data file
Who owns Flagstone Financial Management?
Flagstone Financial Management is owned through a holding company by Michael Johnson. Its direct owner is Flagstone Holdings, Inc. (75% or more).
Source: Form ADV Part 1A, Schedules A and B, filed 21 April 2026
How does Flagstone Financial Management get paid?
Flagstone Financial Management is paid through a percentage of assets under management, hourly charges and fixed fees. Its Form ADV lists no commissions or performance-based fees among how it is paid.
Source: Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file
Is Flagstone Financial Management registered with the SEC?
Yes, Flagstone Financial Management has been registered with the SEC as an investment adviser since 28 November 2016. Its CRD number is 285484 and its SEC file number is 801-108722.
Source: Form ADV Part 1A, Item 1, filed 21 April 2026; IAPD firm record
How do I contact Flagstone Financial Management?
Flagstone Financial Management’s main office is at 5801 Hidcote DR. Ste 100, Lincoln, NE 68516. Its phone number is 402-413-0440. Its website is flagstonefm.com.