Data / Investment advisers / Colorado / Mattern Capital Management, LLC
Mattern Capital Management, LLC, Lakewood, CO: $1.1 billion AUM, SEC registered investment adviser
Mattern Capital Management, LLC is an SEC registered investment adviser with its main office in Lakewood, Colorado and reports $1.1 billion in regulatory assets under management in its Form ADV filed July 29, 2026. Its clients include high net worth individuals, individuals and insurance companies. It is paid through a percentage of assets under management, hourly charges and fixed fees.
SpecStream is the live web data engine for teams and agents. It reads the SEC's Form ADV files every month, and this page is that reading, keyed on the CRD number. Ask for the advisers you track by state, city, size, client type or private funds, and new registrations and filings arrive in your sheet, CRM, Slack or agent as the SEC publishes them.
- Registration
- SEC registered investment adviser
- CRD number
- 299342
- SEC file number
- 801-114522
- SEC status
- Approved, effective January 28, 2019
- Main office
- 165 S. Union Blvd Suite 780, Lakewood, CO 80228
- Phone
- (720) 710-2934
- Regulatory AUM
- $1,073,680,572 in the Form ADV filed July 29, 2026
- Discretionary AUM
- $1,073,680,572
- Accounts
- 1,244
- Employees
- 9, of which 7 give investment advice
- Form of organization
- Limited Liability Company
- Paid through
- a percentage of assets under management, hourly charges, fixed fees
- Other offices
- 1
- Form ADV Item 11 disclosures
- None reported
- Latest Form ADV filing
- July 29, 2026
- SEC record
- Investment Adviser Public Disclosure
Clients
Client types the adviser reports in Form ADV item 5.D, with the AUM it attributes to each.
| Client type | Clients | AUM |
|---|---|---|
| High net worth individuals | 235 | $984.9 million |
| Individuals (other than high net worth individuals) | 169 | $53.1 million |
| Insurance companies | Fewer than 5 | $10.3 million |
| Charitable organizations | Fewer than 5 | $6.6 million |
| Corporations or other businesses | 6 | $1.7 million |
AUM in the SEC's monthly files
Each change in the AUM the adviser reported across the monthly SEC files held here, with the first file that shows the new value.
| First in the file of | AUM | Form ADV filed |
|---|---|---|
| April 1, 2026 | $1.07 billion | March 12, 2026 |
| December 1, 2025 | $998.9 million | March 26, 2025 |
Other advisers in Colorado
| Adviser | City | AUM | Private funds | Source |
|---|---|---|---|---|
| Sharkey Howes & Javer Inc | Denver | $1.13 billion | Not listed | adviserinfo.sec.gov |
| Schaefer Financial Management, Inc. | Centennial | $1.11 billion | Not listed | adviserinfo.sec.gov |
| Heirloom Wealth Management LLC | Greenwood Village | $1.11 billion | Not listed | adviserinfo.sec.gov |
| Crest Rock Partners | Denver | $1.10 billion | 4 | adviserinfo.sec.gov |
| Bruni J V & Co | Colorado Springs | $1.10 billion | Not listed | adviserinfo.sec.gov |
| Dream U.S. Manager LLC | Denver | $1.04 billion | 1 | adviserinfo.sec.gov |
| Peak Asset Management, LLC | Louisville | $1.01 billion | Not listed | adviserinfo.sec.gov |
| Bayswater Management Company LP | Denver | $991.5 million | 6 | adviserinfo.sec.gov |
Also on SpecStream
- Investment advisers in Colorado
- Advisers with $1 billion to $10 billion in AUM
- Advisers serving high net worth individuals
- Advisers serving individuals
- Mattern Capital Management, LLC on the SEC's adviser search
Updated November 7, 2026. Read from the SEC's Form ADV data files for investment advisers. Public data published by the US Securities and Exchange Commission (US government work). Advisers report these values themselves in Form ADV, and neither the SEC nor the states approve or guarantee them. AUM is regulatory assets under management as the adviser reported it in Form ADV item 5.F, which can differ from the AUM a firm quotes elsewhere. Exempt reporting advisers do not report AUM. Office address, phone and website are the adviser's main office as filed; a firm that files its main office as a private residence shows no street address or phone. An Item 11 disclosure is a reported event, not a finding about the firm today. Details for each firm are on the SEC's Investment Adviser Public Disclosure site. This page uses SEC data and is not endorsed or certified by the SEC. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.