Data / Investment advisers / Connecticut / Ack Asset Management LLC
Ack Asset Management LLC, Greenwich, CT: $1.1 billion AUM, SEC registered investment adviser
Ack Asset Management LLC is an SEC registered investment adviser with its main office in Greenwich, Connecticut and reports $1.1 billion in regulatory assets under management in its Form ADV filed March 13, 2026. Its clients include pooled investment vehicles. It is paid through a percentage of assets under management and performance based fees. It advises 2 private funds.
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- Registration
- SEC registered investment adviser
- CRD number
- 155136
- SEC file number
- 801-71844
- SEC status
- Approved, effective September 21, 2010
- Main office
- 777 West Putnam Ave. Suite 300, Greenwich, CT 06830
- Phone
- (914) 358-3299
- Regulatory AUM
- $1,068,346,088 in the Form ADV filed March 13, 2026
- Discretionary AUM
- $1,068,346,088
- Accounts
- 159
- Employees
- 10, of which 6 give investment advice
- Form of organization
- Limited Liability Company
- Paid through
- a percentage of assets under management, performance based fees
- Private funds
- 2: 2 hedge funds
- Gross assets of private funds
- $1,068,346,088
- Other offices
- 1
- Form ADV Item 11 disclosures
- None reported
- Latest Form ADV filing
- March 13, 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 |
|---|---|---|
| Pooled investment vehicles | 2 | $1.07 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 |
|---|---|---|
| April 1, 2026 | $1.07 billion | March 13, 2026 |
| December 1, 2025 | $949.1 million | March 19, 2025 |
Other advisers in Greenwich
| Adviser | City | AUM | Private funds | Source |
|---|---|---|---|---|
| Themes Management Company LLC | Greenwich | $1.23 billion | Not listed | adviserinfo.sec.gov |
| Mountain Point Credit Management LLC | Greenwich | $1.22 billion | 4 | adviserinfo.sec.gov |
| Stone Point Credit Income Adviser LLC | Greenwich | $1.19 billion | 1 | adviserinfo.sec.gov |
| Astatine Investment Partners | Greenwich | $1.15 billion | 6 | adviserinfo.sec.gov |
| Night Owl Capital Management, LLC | Greenwich | $1.10 billion | 1 | adviserinfo.sec.gov |
| QP Global Family Offices, LLC | Greenwich | $1.05 billion | Not listed | adviserinfo.sec.gov |
| 1543 Capital LP | Greenwich | $1.04 billion | 5 | adviserinfo.sec.gov |
| Cat Rock Capital Management LP | Greenwich | $968.5 million | 2 | adviserinfo.sec.gov |
Also on SpecStream
- Investment advisers in Greenwich, CT
- Investment advisers in Connecticut
- Advisers with $1 billion to $10 billion in AUM
- Advisers serving pooled investment vehicles
- Advisers that manage private funds
- Ack Asset 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.