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Tumwater Wealth Management

Wealth managementRIA

Boise, IDCRD 300443Updated

Tumwater Wealth Management is an investment adviser based in Boise, ID, registered with the SEC since 2020. It provides financial planning and investment management. Its clients include high-net-worth individuals, pension and profit-sharing plans, and individual clients. Its regulatory assets under management total $407 million, as filed on 11 August 2026.

310
Clients
$1.13M
AUM per individual client
3
Advisory staff
1
Offices
1.20%
Annual fee
Up to

From Form ADV filed 11 August 2026SEC record

Services and clients

Tumwater Wealth Management provides financial planning, portfolio management for individuals and small businesses, portfolio management for institutions, and pension consulting. Financial planning was provided to 251–500 clients last fiscal year.

Tumwater Wealth Management reports 310 clients. They include 171 individual clients, 113 high-net-worth individuals, and 21 pension and profit-sharing plans. Of its assets, 85.9% ($349M across 861 accounts) are managed with discretion; $57.4M across 16 accounts are not. It advised 1 client without assets under management last fiscal year.

Clients and assets by client type
Clients310 clients
Assets$407M
Share of clients and assets by client type
Client typeClientsAssets
Individuals (other than HNW)55%12%
High-net-worth individuals36%67%
Pension and profit-sharing plans7%20%
Insurance companies<1%<1%
Corporations and other businesses1%1%
Client breakdown and activity details
Individuals (other than HNW)
Clients
171
Regulatory AUM
$48M
AUM share
11.8%
Avg. per client
$280K
High-net-worth individuals
Clients
113
Regulatory AUM
$272M
AUM share
66.9%
Avg. per client
$2.41M
Pension and profit-sharing plans
Clients
21
Regulatory AUM
$80.9M
AUM share
19.9%
Avg. per client
$3.85M
Insurance companies
Clients
Fewer than 5
Regulatory AUM
$578
AUM share
0.0%
Avg. per client
$578
Corporations and other businesses
Clients
Fewer than 5
Regulatory AUM
$5.85M
AUM share
1.4%
Avg. per client
$1.46M

Total

Clients
310
Regulatory AUM
$407M
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
251–500

Tumwater Wealth Management fees and minimums

Tumwater Wealth Management charges up to 1.20% a year for its Portfolio Management. The fee is billed in advance and is negotiable. The brochure also prices 2 other services, listed under fee details.

Fee details and sources

Other fees

Comprehensive Financial Planning
Comprehensive financial plans are charged $3,588 annually, generally negotiable; TWM may also offer a fee of no more than $299 per month for household accounts under $500,000.
Investment Management Only
For household accounts under $500,000, TWM may offer investment management only at no more than 0.60% annually.

Who owns Tumwater Wealth Management

Benjamin Warren owns 50% to 75% of Tumwater Wealth Management. The leadership team of Tumwater Wealth Management includes Chief Compliance Officer Benjamin Warren. It has 5 employees, 3 of them in advisory roles.

Leadership

  • Benjamin Warren
    Managing Member & Chief Compliance Officer
  • Kirsten Warren
    Member

Investment adviser representatives

3 representatives listed in the SEC register as of 9 October 2026.

  • Christopher Hersh
  • Owen Patrick Quast
  • Benjamin Carl Warren

Staff

  • 5 employees
  • 3 in advisory functions
  • 3 state-registered reps
  • 1 soliciting firm
Ownership chain
Tumwater Wealth Management, LLC· the adviser
  • Benjamin Warren

    Control person · since November 2018

    Owns 50% to 75% of Tumwater Wealth Management, LLC
  • Kirsten Warren

    Control person · since November 2018

    Owns 50% to 75% of Tumwater Wealth Management, LLC

Growth and acquisitions

Tumwater Wealth Management’s regulatory assets grew 1.7× from $240M (April 2021) to $407M (August 2026); clients rose from 199 to 310 and employees from 4 to 5.

By annual filing
Measure
Figures from each annual filing
Tumwater Wealth Management figures from each annual Form ADV filing
FiledRegulatory AUMClientsEmployeesOffices
August 2026$407M31051
July 2025$350M27641
March 2024$305M27041
April 2023$279M27641
March 2022$291M21541
April 2021$240M19941

Offices and registration details

Besides its headquarters, Tumwater Wealth Management has 0 offices, with 1 listed address in Idaho.

Listed office addresses by state

Idaho · 1 listed address

  • 110 W Main St, BoiseHQ

Contact and registration details

Legal name
Tumwater Wealth Management, LLC
Headquarters
110 W Main St, Boise, ID 83702
SEC file
801-118103
Structure
Idaho LLC
Fiscal year end
December

Custodians

Tumwater Wealth Management uses Charles Schwab ($332M) as custodian for its separately managed accounts. Tumwater Wealth Management does not have custody of client assets.

Reported separately managed account assets by custodian
$332M
named custodians
  • Charles SchwabCharles Schwab & Co., Inc. · Westlake, TX · $332M100%

Investments and reported holdings

At year end, Tumwater Wealth Management’s separately managed accounts were mostly in funds (86%) and cash (10%). Its reported 13F holdings for the quarter ended 30 June 2026 total $277M across 33 positions; the largest are Dimensional ETF Trust (28.8%), Vanguard Index Fds (22.2%) and Dimensional ETF Trust (16.1%).

What the accounts hold

Separately managed account assets by class, year end
  • Stocks4%
    • Exchange-traded equities3%
    • Non-exchange-traded equities1%
  • Funds86%
  • Cash10%

Reported 13F holdings

$277M
Reported 13F value
33
Positions
95.2%
In the 10 largest
+11.2%
Value vs. prior quarter
Ten largest positions, share of reported value
  1. Dimensional ETF Trust · World EX US Core28.8%
  2. Vanguard Index Fds · Total Stk Mkt22.2%
  3. Dimensional ETF Trust · US Targeted Vlu16.1%
  4. Dimensional ETF Trust · US Larg Valu ETF13.0%
  5. Vanguard BD Index Fds · Intermed Term6.1%
  6. Dimensional ETF Trust · Ultr Fix Inc. ETF3.6%
  7. Vanguard Index Fds · Large Cap ETF1.9%
  8. Dimensional ETF Trust · US Mktwide Value1.6%
  9. Vanguard Index Fds · S&P 500 ETF Shs1.2%
  10. Chevron Corporation0.9%

Together, the ten largest are 95.2% of reported value.

The 33 largest positions and quarterly changesQuarter ended 30 June 2026 · filed 20 July 2026

Common questions

How many clients does Tumwater Wealth Management have?

Tumwater Wealth Management has 310 clients and manages $407 million for them, as of August 2026. They include 171 individual clients, 113 high-net-worth individuals, and 21 pension and profit-sharing plans.

Source: Form ADV Part 1A, Items 5.D and 5.F, filed 11 August 2026

What services does Tumwater Wealth Management offer?

Tumwater Wealth Management provides financial planning, portfolio management for individuals and small businesses, portfolio management for institutions, and pension consulting.

Source: Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file

How much does Tumwater Wealth Management charge?

Tumwater Wealth Management charges up to 1.20% a year for its Portfolio Management. The fee is billed in advance and is negotiable.

Source: ADV PART 2A-TUMWATER WEALTH MANAGEMENT, LLC, filed 6 March 2026

Which custodians does Tumwater Wealth Management use?

Tumwater Wealth Management’s separately managed account assets are held at Charles Schwab & Co., Inc. (Westlake, TX), with $332M. Only custodians holding at least a tenth of those assets are named.

Source: Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 11 August 2026

How many financial advisors does Tumwater Wealth Management have?

Tumwater Wealth Management has 3 investment adviser representatives registered with state securities authorities, out of 5 employees, and 3 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 Tumwater Wealth Management invest in?

At the end of its last fiscal year, Tumwater Wealth Management’s separately managed accounts held 86% registered funds (mutual funds, ETFs, BDCs), 10% cash and equivalents, 3% exchange-traded equities and 1% non-exchange-traded equities.

Source: Form ADV Part 1A, Items 5.K.(1) and 7.B, from the SEC's 2 October 2026 data file

Who owns Tumwater Wealth Management?

Tumwater Wealth Management’s direct owners are Benjamin Warren (50% to 75%) and Kirsten Warren (50% to 75%).

Source: Form ADV Part 1A, Schedules A and B, filed 11 August 2026

How does Tumwater Wealth Management get paid?

Tumwater Wealth Management is paid through a percentage of assets under management 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 Tumwater Wealth Management registered with the SEC?

Yes, Tumwater Wealth Management has been registered with the SEC as an investment adviser since 20 February 2020. Its CRD number is 300443 and its SEC file number is 801-118103.

Source: Form ADV Part 1A, Item 1, filed 11 August 2026; IAPD firm record

How do I contact Tumwater Wealth Management?

Tumwater Wealth Management’s main office is at 110 W Main St, Boise, ID 83702. Its phone number is 208-314-2114. Its website is tumwaterwealth.com.

Source: Form ADV Part 1A, Item 1.F, filed 11 August 2026

Sources and methodology

  1. Form ADV Part 1A, amendment filed 11 August 2026. Items 1, 5, 9, 11 and Schedules A, B and D.
  2. ADV PART 2A-TUMWATER WEALTH MANAGEMENT, LLC, submitted 6 March 2026.
  3. IAPD firm record, CRD 300443.
  4. SEC registered adviser data, annual Form ADV amendments filed 19 April 2021 to 11 August 2026. Items 1.F and 5.
  5. SEC investment adviser representative register, as of 9 October 2026; loaded 10 October 2026.
  6. Form 13F-HR, filed 20 July 2026 for the quarter ended 30 June 2026.

Retrieved 15 October 2026. All are published by the SEC and may have been amended since. Disciplinary history is not yet shown here. The SEC publishes the complete record, including any disciplinary events, and it is the authoritative place to check one. The logo is reproduced for identification from Tumwater Wealth Management, LLC, website.

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