# 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.

- CRD: 169037
- Filed as: SOUND MARK PARTNERS, LLC
- Also doing business as: AGC SOUND MARK
- Registration: SEC-registered investment adviser (status as filed: Approved)
- Location: Greenwich, CT
- Filing period: October 2026
- Form ADV filing dated: March 27, 2026
- SEC record (IAPD): https://adviserinfo.sec.gov/firm/summary/169037
- AdvisorCensus page: https://advisorcensus.com/firm/sound-mark-partners-llc-greenwich-ct-169037

## Quick answers

**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

### Compensation (Item 5.E)
- A percentage of assets under your management
- Performance-based fees

### Fees and minimums (Form ADV Part 2A brochure dated March 27, 2026)

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

> 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 brochure. Fees can differ by service and may be negotiable.

### Regulatory assets under management (Item 5.F)
- Total: $271,980,247
- Discretionary: $271,980,247
- Non-discretionary: $0

### Clients (Item 5.D)

| Client type | Clients | Assets |
| --- | --- | --- |
| Pooled investment vehicles (other than investment companies and business development companies) | 2 | $252,130,247 |
| State or municipal government entities (including government pension plans) | Fewer than 5 | $19,850,000 |

### 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

### Firm details
- Registered since: 2013 (13 years)
- Employees: 6 total, 6 performing advisory functions
- Wrap fee program participation: No
- States registered or notice-filed: CT
- Disclosures (Item 11): Reports no disclosure items on Form ADV Item 11.

### Websites listed on Form ADV (Item 1.I)
- [soundmarkpartners.com](https://soundmarkpartners.com)
- LinkedIn @sound-mark-partners-llc

## Assets and staff over time

| Data period | Regulatory assets under management | Employees | Filing dated |
| --- | --- | --- | --- |
| October 2021 | $315,655,715 | 7 | March 26, 2021 |
| October 2022 | $398,872,815 | 7 | March 30, 2022 |
| October 2023 | $444,463,000 | 7 | April 6, 2023 |
| October 2024 | $405,626,020 | 8 | March 27, 2024 |
| October 2025 | $315,283,553 | 7 | March 19, 2025 |
| October 2026 | $271,980,247 | 6 | March 27, 2026 |

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.

## Changes in the filing (last 12 months)

### 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%).

## Source

Form ADV as filed, October 2026. Values appear as filed. Cite as: AdvisorCensus. Sound Mark Partners, LLC (CRD 169037): Form ADV filing data as of October 2026.