Mattern Wealth Management provides financial planning, portfolio management for individuals and small businesses, portfolio management for institutions, selecting other managers, estate planning, insurance, philanthropic planning, retirement plan services, and tax planning.
Mattern Wealth Management reports 613 clients. They include 478 individual clients, 127 high-net-worth individuals, and 8 corporations and other businesses. Of its assets, 100.0% ($579M across 1,412 accounts) are managed with discretion.
| Client type | Clients | Assets |
|---|---|---|
| Individuals (other than HNW) | 78% | 24% |
| High-net-worth individuals | 21% | 72% |
| Charitable organizations | Fewer than 5 | <1% |
| Corporations and other businesses | 1% | 4% |
Client shares use reported counts. Client types without a reported count are excluded from that total.
Client breakdown and activity details
| Client type | Clients | Regulatory AUM | AUM share | Avg. per client |
|---|---|---|---|---|
| Individuals (other than HNW) | 478 | $138M | 23.8% | $289K |
| High-net-worth individuals | 127 | $417M | 72.0% | $3.28M |
| Charitable organizations | Fewer than 5 | $121K | 0.0% | — |
| Corporations and other businesses | 8 | $24.1M | 4.2% | $3.01M |
| Total | 613 | $579M | 100% | — |
- Clients
- 478
- Regulatory AUM
- $138M
- AUM share
- 23.8%
- Avg. per client
- $289K
- Clients
- 127
- Regulatory AUM
- $417M
- AUM share
- 72.0%
- Avg. per client
- $3.28M
- Clients
- Fewer than 5
- Regulatory AUM
- $121K
- AUM share
- 0.0%
- Avg. per client
- —
- Clients
- 8
- Regulatory AUM
- $24.1M
- AUM share
- 4.2%
- Avg. per client
- $3.01M
Total
- Clients
- 613
- Regulatory AUM
- $579M
- AUM share
- 100%
- Avg. per client
- —
- Clients outside the U.S.
- 0%
- Clients advised without assets under management last fiscal year
- 0
- Private funds advised
- 0
- Financial planning clients last fiscal year
- 0
Mattern Wealth Management charges up to 1.25% a year for its Investment Management Services. The fee is billed in arrears and is negotiable. The brochure also prices one other service, listed under fee details.
Fee details and sources
Other fees
- Financial Planning and Consulting
- Planning and consulting is billed by project, fixed rate or hourly at $300 an hour, not to exceed $10,000.
David Mattern owns 75% or more of Mattern Wealth Management. The leadership team of Mattern Wealth Management includes Chief Compliance Officer Kyle Cross. It has 5 employees, 3 of them in advisory roles.
Staff
- 5 employees
- 3 in advisory functions
- 3 state-registered reps
- Owns 75% or more of Mattern Wealth Management LLC
David Mattern
Control person · since June 2019
- Owns 5% to 10% of Mattern Wealth Management LLC
Kyle Cross
Control person · since January 2020
Mattern Wealth Management’s regulatory assets grew 1.7× from $336M (March 2021) to $579M (March 2026); clients rose from 470 to 613 and employees from 3 to 5.
Figures from each annual filing
| Filed | Regulatory AUM | Clients | StaffEmployees | Offices |
|---|---|---|---|---|
| Mar 2026March 2026 | $579M | 613 | 5 | 1 |
| Jun 2025June 2025 | $534M | 595 | 5 | 1 |
| Mar 2024March 2024 | $482M | 597 | 5 | 1 |
| Jun 2023June 2023 | $420M | 557 | 5 | 1 |
| Mar 2022March 2022 | $463M | 516 | 4 | 1 |
| Mar 2021March 2021 | $336M | 470 | 3 | 1 |
Besides its headquarters, Mattern Wealth Management has 0 offices, with 1 listed address in 1 state.
Kansas · 1 listed address
- 1811 Wakarusa Drive, Suite 103, LawrenceHQ
Contact and registration details
- Legal name
- Mattern Wealth Management LLC
- Headquarters
- 1811 Wakarusa Drive, Suite 103, Lawrence, KS 66047
- Website
- matternwealth.com
- Phone
- 785-842-7680
- SEC file
- 801-116993
- Founded
- 2019
- Structure
- Kansas LLC
- Fiscal year end
- December
Mattern Wealth Management’s named custodians for separately managed accounts are Charles Schwab ($333M, 57%) and Wells Fargo Clearing Services ($246M, 43%). Mattern Wealth Management does not have custody of client assets.
- Wells Fargo Clearing ServicesWells Fargo Clearing Services, LLC · St. Louis, MO · $246M43%
- Charles SchwabCharles Schwab & Co., Inc. · San Francisco, CA · $333M57%
At year end, Mattern Wealth Management’s separately managed accounts were mostly in funds (68%) and stocks (30%). Its reported 13F holdings for the quarter ended 30 June 2026 total $609M across 183 positions; the largest are Dimensional ETF Trust (13.8%), American Centy ETF TR (8.0%) and Dimensional ETF Trust (6.2%).
What the accounts hold
- Stocks30%
- Funds68%
- Registered funds66%
- Pooled vehicles2%
- Cash2%
How many clients does Mattern Wealth Management have?
Mattern Wealth Management has 613 clients and manages $579 million for them, as of March 2026. They include 478 individual clients, 127 high-net-worth individuals, and 8 corporations and other businesses.
Source: Form ADV Part 1A, Items 5.D and 5.F, filed 26 March 2026
What services does Mattern Wealth Management offer?
Mattern Wealth Management provides financial planning, portfolio management for individuals and small businesses, portfolio management for institutions, selecting other managers, estate planning, insurance, philanthropic planning, retirement plan services, 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
How much does Mattern Wealth Management charge?
Mattern Wealth Management charges up to 1.25% a year for its Investment Management Services. The fee is billed in arrears and is negotiable.
Source: MATTERN WEALTH MANAGEMENT GROUP, LLC FORM ADV PART 2A, filed 26 March 2026
Which custodians does Mattern Wealth Management use?
Mattern Wealth Management’s separately managed account assets are held at Charles Schwab & Co., Inc. (San Francisco, CA), with $333M and Wells Fargo Clearing Services, LLC (St. Louis, MO), with $246M. Only custodians holding at least a tenth of those assets are named.
Source: Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 26 March 2026
How many financial advisors does Mattern Wealth Management have?
Mattern 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 Mattern Wealth Management invest in?
At the end of its last fiscal year, Mattern Wealth Management’s separately managed accounts held 66% registered funds (mutual funds, ETFs, BDCs), 30% exchange-traded equities, 2% pooled vehicles (private funds and similar) 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 Mattern Wealth Management?
Mattern Wealth Management’s direct owners are David Mattern (75% or more) and Kyle Cross (5% to 10%).
Source: Form ADV Part 1A, Schedules A and B, filed 26 March 2026
How does Mattern Wealth Management get paid?
Mattern Wealth 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
How do I contact Mattern Wealth Management?
Mattern Wealth Management’s main office is at 1811 Wakarusa Drive, Suite 103, Lawrence, KS 66047. Its phone number is 785-842-7680. Its website is matternwealth.com.