Data / Investment advisers / Massachusetts / Twin Oak ETF Company
Twin Oak ETF Company, Wellesley, MA: $1.1 billion AUM, SEC registered investment adviser
Updated November 7, 2026. Source: the SEC's Form ADV data files for investment advisers.
Twin Oak ETF Company is an SEC registered investment adviser with its main office in Wellesley, Massachusetts and reports $1.1 billion in regulatory assets under management in its Form ADV filed October 29, 2026. Its clients include investment companies. It is paid through a percentage of assets under management.
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- Registration
- SEC registered investment adviser
- CRD number
- 330365
- SEC file number
- 801-130584
- SEC status
- Approved, effective June 28, 2024
- Main office
- 888 Worcester St Suite 200, Wellesley, MA 02482
- Phone
- (617) 402-5495
- Website
- twinoaketfs.com
- Regulatory AUM
- $1,057,835,660 in the Form ADV filed October 29, 2026
- Discretionary AUM
- $1,057,835,660
- Accounts
- 5
- Employees
- 6, of which 3 give investment advice
- Form of organization
- Corporation
- Paid through
- a percentage of assets under management
- Form ADV Item 11 disclosures
- None reported
- Latest Form ADV filing
- October 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 |
|---|---|---|
| Investment companies | 5 | $1.06 billion |
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 |
|---|---|---|
| June 1, 2026 | $1.06 billion | May 28, 2026 |
| April 1, 2026 | $566.1 million | March 2, 2026 |
| December 1, 2025 | $572.3 million | September 4, 2025 |
Other advisers in Wellesley
| Adviser | City | AUM | Private funds | Source |
|---|---|---|---|---|
| New England Private Wealth Advisors, LLC | Wellesley | $5.09 billion | Not listed | adviserinfo.sec.gov |
| Washington Trust Advisors | Wellesley | $2.39 billion | Not listed | adviserinfo.sec.gov |
| Rose Grove Capital Management, LLC | Wellesley | $1.94 billion | 4 | adviserinfo.sec.gov |
| Empirical Asset Management, LLC | Wellesley | $560 million | 1 | adviserinfo.sec.gov |
| Range Rock Capital | Wellesley | $548.3 million | Not listed | adviserinfo.sec.gov |
| Peak Financial Management Inc | Wellesley | $534.4 million | Not listed | adviserinfo.sec.gov |
| Argonautica Private Wealth Management, Inc | Wellesley | $532.9 million | Not listed | adviserinfo.sec.gov |
| Arctaris Impact Investors | Wellesley | $347.3 million | 6 | adviserinfo.sec.gov |
Also on SpecStream
- Investment advisers in Wellesley, MA
- Investment advisers in Massachusetts
- Advisers with $1 billion to $10 billion in AUM
- Advisers serving investment companies
- Twin Oak ETF Company on the SEC's adviser search
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.