# Mattern Capital Management, LLC

> Mattern Capital Management, LLC is an SEC-registered investment advisory firm in Lakewood, CO, registered since 2019, reporting $1 billion to $5 billion in regulatory assets under management in its Form ADV filing dated July 29, 2026.

- CRD: 299342
- Filed as: MATTERN CAPITAL MANAGEMENT, LLC
- Registration: SEC-registered investment adviser (status as filed: Approved)
- Location: Lakewood, CO
- Filing period: October 2026
- Form ADV filing dated: July 29, 2026
- SEC record (IAPD): https://adviserinfo.sec.gov/firm/summary/299342
- AdvisorCensus page: https://advisorcensus.com/firm/mattern-capital-management-llc-lakewood-co-299342

## Quick answers

**How is Mattern Capital Management, LLC compensated?**
On its Form ADV (Item 5.E, October 2026), Mattern Capital Management, LLC reports these compensation arrangements: a percentage of assets under its management; hourly charges; fixed fees (other than subscription fees).

**How much does Mattern Capital Management, LLC charge?**
Its Form ADV Part 2A brochure dated March 12, 2026 states: Hourly rate: $350 an hour (financial planning and/or consulting services). Fees can differ by service and may be negotiable; the brochure is the complete statement.

**Where is Mattern Capital Management, LLC located?**
Mattern Capital Management, LLC's principal office is in Lakewood, CO, according to its Form ADV; the August 2026 filing also lists 1 other office (Schedule D, Section 1.F).

**Is Mattern Capital Management, LLC registered with the SEC or a state?**
Mattern Capital Management, LLC is an SEC-registered investment advisory firm, registered since 2019. Status as filed: Approved. CRD 299342.

**How much does Mattern Capital Management, LLC manage?**
Mattern Capital Management, LLC reports $1,073,680,572 in regulatory assets under management in its Form ADV filing dated July 29, 2026 (100% discretionary).

**How have Mattern Capital Management, LLC's assets and staff changed since 2021?**
In the Form ADV data for Mattern Capital Management, LLC: Regulatory assets under management: $577,879,545 in the October 2021 data and $1,073,680,572 in the October 2026 data, up 86%. Total employees: 4 in October 2021 and 9 in October 2026. Assets under management move with markets as well as with clients coming and going.

**What types of clients does Mattern Capital Management, LLC serve?**
By number of clients on Form ADV Item 5.D: high net worth individuals (235); individuals (other than high net worth individuals) (169); other (26).

**Which custodians does Mattern Capital Management, LLC use?**
Mattern Capital Management, LLC's most recent Form ADV filing (Schedule D, Section 5.K(3)) lists Charles Schwab & Co., Inc. as a custodian holding 10% or more of its separately managed account assets.

**Does Mattern Capital Management, LLC report any disciplinary disclosures?**
Reports no disclosure items on Form ADV Item 11. The detail of any item is on the firm's SEC record: https://adviserinfo.sec.gov/firm/summary/299342

**What changed in Mattern Capital Management, LLC's recent Form ADV filings?**
In the August 2026 filing data: Registered or notice-filed in IL, NE.

## From the Form ADV filing

### Compensation (Item 5.E)
- A percentage of assets under your management
- Hourly charges
- Fixed fees (other than subscription fees)

### Fees and minimums (Form ADV Part 2A brochure dated March 12, 2026)

- Hourly rate: $350 an hour (financial planning and/or consulting services)

> Fees for financial planning and/or consulting services can be billed on a project, fixed rate, or an hourly rate of $350 per hour.

As stated in the firm's brochure. Fees can differ by service and may be negotiable.

### Custodians (Schedule D, Section 5.K(3))
- Charles Schwab & Co., Inc.

Custodians holding 10% or more of the firm's separately managed account assets, as filed on Form ADV (Schedule D, Section 5.K(3)). A custodian holds client assets; it does not endorse or supervise the firm. AdvisorCensus has no relationship with any custodian.

### Regulatory assets under management (Item 5.F)
- Total: $1,073,680,572
- Discretionary: $1,073,680,572
- Non-discretionary: $0

### Clients (Item 5.D)

| Client type | Clients | Assets |
| --- | --- | --- |
| Individuals (other than high net worth individuals) | 169 | $53,142,691 |
| High net worth individuals | 235 | $984,874,853 |
| Charitable organizations | Fewer than 5 | $6,607,323 |
| Insurance companies | Fewer than 5 | $10,306,029 |
| Corporations or other businesses not listed above | 6 | $1,728,221 |
| Other | 26 | $17,021,455 |

### Advisory services (Item 5.G)
- Financial planning services
- Portfolio management for individuals and/or small businesses
- Portfolio management for businesses (other than small businesses) or institutional clients
- Pension consulting services
- Selection of other advisers (including private fund managers)

### Firm details
- Registered since: 2019 (7 years)
- Employees: 9 total, 7 performing advisory functions
- Wrap fee program participation: No
- States registered or notice-filed: AZ, CA, CO, FL, IL, LA, NE, NY, TX
- Disclosures (Item 11): Reports no disclosure items on Form ADV Item 11.

### Other offices (Schedule D, Section 1.F), as of the August 2026 filing
- Scottsdale, AZ

### Websites listed on Form ADV (Item 1.I)
- [matterncapital.com](https://matterncapital.com)
- LinkedIn @matterncapitalmanagement

## Assets and staff over time

| Data period | Regulatory assets under management | Employees | Filing dated |
| --- | --- | --- | --- |
| October 2021 | $577,879,545 | 4 | March 31, 2021 |
| October 2022 | $733,238,738 | 5 | July 26, 2022 |
| October 2023 | $722,449,196 | 6 | March 28, 2023 |
| October 2024 | $917,992,626 | 7 | August 29, 2024 |
| October 2025 | $998,867,587 | 8 | March 26, 2025 |
| October 2026 | $1,073,680,572 | 9 | July 29, 2026 |

Regulatory assets under management: $577,879,545 in the October 2021 data and $1,073,680,572 in the October 2026 data, up 86%.
Total employees: 4 in October 2021 and 9 in October 2026.

## Changes in the filing (last 12 months)

### August 2026
- Registered or notice-filed in IL, NE.

### April 2026
- Employees performing advisory functions went from 6 to 7.
- Added an office in Scottsdale, AZ.

## Source

Form ADV as filed, October 2026. Values appear as filed. Cite as: AdvisorCensus. Mattern Capital Management, LLC (CRD 299342): Form ADV filing data as of October 2026.