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Sound Mark Partners, LLC

Greenwich, CTSEC-registered investment adviserCRD 169037

Filed as SOUND MARK PARTNERS, LLC

Sound Mark Partners, LLC is an SEC-registered investment advisory firm in Greenwich, CT, registered since 2013, reporting $100 million to $500 million in regulatory assets under management in its Form ADV filing dated March 27, 2026.

13 years
registered since 2013
$271,980,247
assets under management
2 arrangements
Percentage of assets, Performance-based
None
disclosure items (Item 11)

Quick answers

From the filing

How is Sound Mark Partners, LLC compensated?

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

How much does Sound Mark Partners, LLC charge?

Its Form ADV Part 2A brochure dated March 27, 2026 states: Asset-based fee: 1.25% 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 Sound Mark Partners, LLC located?

Sound Mark Partners, LLC's principal office is in Greenwich, CT, according to its Form ADV.

Is Sound Mark Partners, LLC registered with the SEC or a state?

Sound Mark Partners, LLC is an SEC-registered investment advisory firm, registered since 2013. Status as filed: Approved. CRD 169037.

How much does Sound Mark Partners, LLC manage?

Sound Mark Partners, LLC reports $271,980,247 in regulatory assets under management in its Form ADV filing dated March 27, 2026 (100% discretionary).

How have Sound Mark Partners, LLC's assets and staff changed since 2021?

In the Form ADV data for Sound Mark Partners, LLC: Regulatory assets under management: $315,655,715 in the October 2021 data and $271,980,247 in the October 2026 data, down 14%. Total employees: 7 in October 2021 and 6 in October 2026. Assets under management move with markets as well as with clients coming and going.

What types of clients does Sound Mark Partners, 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 Sound Mark Partners, 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/169037

What changed in Sound Mark Partners, LLC's recent Form ADV filings?

In the April 2026 filing data: Employees performing advisory functions went from 7 to 6. Regulatory assets under management went from $315,283,553 to $271,980,247 (-14%).

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: 1.25% to 1.5% a year (a range, as the brochure states it)

The brochure's wording
Investors in the Horizons Fund pay Sound Mark (or one of its affiliates) a Management Fee that ranges from 1.25% to 1.5% of the Horizons Fund invested capital, as adjusted for impaired assets and the distribution of redemption proceeds and other distributions to investors in accordance with the Partnership Agreement.

As stated in the firm's Form ADV Part 2A brochure dated March 27, 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
$271,980,247

$271,980,247 as of October 2026, filing dated March 27, 2026.

Discretionary: $271,980,247.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 $252,130,247 (93%)
State or municipal government entities (including government pension plans)
Clients Fewer than 5 Assets $19,850,000 (7%)

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)
  • Portfolio management for businesses (other than small businesses) or institutional clients

Registration and firm details

Items 1, 2, 5
Also doing business as
AGC SOUND MARK
Registration
SEC-registered investment adviser. Status as filed: Approved.
Registered since
2013 (13 years)
Employees
Total: 6. Performing investment advisory functions: 6.
Wrap fee program participation
No.
States registered or notice-filed
1 state or jurisdiction
CT

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
$316M 2021 $399M 2022 $444M 2023 $406M 2024 $315M 2025 $272M 2026
Data periodAssets under managementEmployeesFiling dated
October 2026$271,980,2476March 27, 2026
October 2025$315,283,5537March 19, 2025
October 2024$405,626,0208March 27, 2024
October 2023$444,463,0007April 6, 2023
October 2022$398,872,8157March 30, 2022
October 2021$315,655,7157March 26, 2021

Regulatory assets under management: $315,655,715 in the October 2021 data and $271,980,247 in the October 2026 data, down 14%.

Total employees: 7 in October 2021 and 6 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
    • Employees performing advisory functions went from 7 to 6.
    • Regulatory assets under management went from $315,283,553 to $271,980,247 (-14%).

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
soundmarkpartners.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. Sound Mark Partners, LLC (CRD 169037): Form ADV filing data as of October 2026.
https://advisorcensus.com/firm/sound-mark-partners-llc-greenwich-ct-169037