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ACK Asset Management LLC

Greenwich, CTSEC-registered investment adviserCRD 155136

Filed as ACK ASSET MANAGEMENT LLC

ACK Asset Management LLC is an SEC-registered investment advisory firm in Greenwich, CT, registered since 2010, reporting $1 billion to $5 billion in regulatory assets under management in its Form ADV filing dated March 13, 2026.

16 years
registered since 2010
$1,068,346,088
assets under management
2 arrangements
Percentage of assets, Performance-based
None
disclosure items (Item 11)

Quick answers

From the filing

How is ACK Asset Management LLC compensated?

On its Form ADV (Item 5.E, October 2026), ACK Asset Management LLC reports these compensation arrangements: a percentage of assets under its management; performance-based fees.

What does ACK Asset Management LLC's brochure say about its fees?

Its Form ADV Part 2A brochure dated March 13, 2026 states: Asset-based fee: 1% to 1.5% a year (a range, as the brochure states it). Fees can differ by service and may be negotiable; the brochure is the complete statement.

Where is ACK Asset Management LLC located?

ACK Asset Management LLC's principal office is in Greenwich, CT, according to its Form ADV; the April 2026 filing also lists 1 other office (Schedule D, Section 1.F).

Is ACK Asset Management LLC registered with the SEC or a state?

ACK Asset Management LLC is an SEC-registered investment advisory firm, registered since 2010. Status as filed: Approved. CRD 155136.

How much does ACK Asset Management LLC manage?

ACK Asset Management LLC reports $1,068,346,088 in regulatory assets under management in its Form ADV filing dated March 13, 2026 (100% discretionary).

How have ACK Asset Management LLC's assets and staff changed since 2021?

In the Form ADV data for ACK Asset Management LLC: Regulatory assets under management: $496,480,175 in the October 2021 data and $1,068,346,088 in the October 2026 data, up 115%. Total employees: 6 in October 2021 and 10 in October 2026. Assets under management move with markets as well as with clients coming and going.

What types of clients does ACK Asset Management LLC serve?

By number of clients on Form ADV Item 5.D: pooled investment vehicles (other than investment companies and business development companies) (2).

Does ACK Asset 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/155136

Does ACK Asset Management LLC state an account minimum?

Its Form ADV Part 2A brochure dated March 13, 2026 says: "The minimum investment amount in the Private Funds is $500,000. The minimum investment amount may be waived by the General Partner or Adviser and has been so waived for certain investors."

What changed in ACK Asset Management LLC's recent Form ADV filings?

In the April 2026 filing data: Regulatory assets under management went from $949,118,501 to $1,068,346,088 (+13%).

From the Form ADV filing

Every figure below is as the firm filed it with regulators, as of October 2026.

How the firm is compensated

Item 5.E
  • A percentage of assets under your management
  • Performance-based fees

Item 5.E lists how the firm is compensated for its advice; Items 5.B, 6.A, and 7.A show whether its people or related companies can also earn commissions. Percentage of assets, fixed, hourly, subscription, and performance-based fees come from clients (a performance-based fee depends on investment results); commissions come with a sale or a trade, often from the company behind the product. How fees, commissions, and other arrangements differ

Fees and minimums

Form ADV Part 2A

Asset-based fee: 1% to 1.5% a year (a range, as the brochure states it)

The brochure's wording
ACK typically charges investors in the Private Funds a management fee that ranges between 1.00% and 1.50% per annuum of the assets under management depending on when investors initially invested in a respective Private Fund

Account minimum: $500,000 (the brochure says it may be waived or negotiated)

The brochure's wording
The minimum investment amount in the Private Funds is $500,000. The minimum investment amount may be waived by the General Partner or Adviser and has been so waived for certain investors.

As stated in the firm's Form ADV Part 2A brochure dated March 13, 2026. Fees can differ by service and may be negotiable; the brochure is the complete statement. Read the brochure on the SEC's IAPD site

Regulatory assets under management

Item 5.F
$1,068,346,088

$1,068,346,088 as of October 2026, filing dated March 13, 2026.

Discretionary: $1,068,346,088.Non-discretionary: $0.

A measure of scale, not skill or returns. Discretionary means the firm decides trades; non-discretionary means clients approve each one. What assets under management means

Who the firm serves

Item 5.D
Pooled investment vehicles (other than investment companies and business development companies)
Clients 2 Assets $1,068,346,088 (100%)

A firm with no individual clients is an institutional manager even if it manages billions; the mix tells you whom the practice is built around.

Advisory services

Item 5.G
  • Portfolio management for pooled investment vehicles (other than investment companies)

Registration and firm details

Items 1, 2, 5
Registration
SEC-registered investment adviser. Status as filed: Approved.
Registered since
2010 (16 years)
Employees
Total: 10. Performing investment advisory functions: 6.
Wrap fee program participation
No.
Other offices (Schedule D, Section 1.F)
1 other office, as of the April 2026 filing
New York, NY
States registered or notice-filed
2 states or jurisdictions
CTNY

SEC-registered investment advisers are examined by the SEC. SEC, state, and exempt registration

Disclosures

Item 11

None Reports no disclosure items on Form ADV Item 11. View on IAPD.

Item 11 asks about criminal, regulatory, and civil events involving the firm and its advisory personnel. The detail of each yes answer is on the IAPD record. Reading a firm's disclosures

Assets and staff over time

Items 5.A, 5.F
$496M 2021 $795M 2022 $710M 2023 $1.1B 2024 $949M 2025 $1.07B 2026
Data periodAssets under managementEmployeesFiling dated
October 2026$1,068,346,08810March 13, 2026
October 2025$949,118,50110March 19, 2025
October 2024$1,099,860,39511March 6, 2024
October 2023$709,883,00010March 29, 2023
October 2022$794,528,93910September 21, 2022
October 2021$496,480,1756March 18, 2021

Regulatory assets under management: $496,480,175 in the October 2021 data and $1,068,346,088 in the October 2026 data, up 115%.

Total employees: 6 in October 2021 and 10 in October 2026.

As filed in each year's data for the same month. Assets under management move with markets as well as with clients coming and going; they measure scale, not skill or returns. Most firms update these figures once a year.

Changes in the filing

Last 12 months
  1. April 2026
    • Regulatory assets under management went from $949,118,501 to $1,068,346,088 (+13%).

Compared month to month from the SEC's monthly adviser data and the state compilation feed. Owners and control persons are summarized, never named.

Websites listed on Form ADV

Item 1.I
ackasset.com

Source: Form ADV, as of October 2026. Values appear as filed; a value the firm did not report is shown as "Not reported."

Cite this page

AdvisorCensus. ACK Asset Management LLC (CRD 155136): Form ADV filing data as of October 2026.
https://advisorcensus.com/firm/ack-asset-management-llc-greenwich-ct-155136