# M4A3 LLC

> M4A3 LLC is an SEC-registered investment advisory firm in Boulder, CO, registered since 2025, reporting $100 million to $500 million in regulatory assets under management in its Form ADV filing dated March 31, 2026.

- CRD: 336172
- Registration: SEC-registered investment adviser (status as filed: Approved)
- Location: Boulder, CO
- Filing period: October 2026
- Form ADV filing dated: March 31, 2026
- SEC record (IAPD): https://adviserinfo.sec.gov/firm/summary/336172
- AdvisorCensus page: https://advisorcensus.com/firm/m4a3-llc-boulder-co-336172

## Quick answers

**How is M4A3 LLC compensated?**
On its Form ADV (Item 5.E, October 2026), M4A3 LLC reports these compensation arrangements: a percentage of assets under its management; performance-based fees.

**Where is M4A3 LLC located?**
M4A3 LLC's principal office is in Boulder, CO, according to its Form ADV.

**Is M4A3 LLC registered with the SEC or a state?**
M4A3 LLC is an SEC-registered investment advisory firm, registered since 2025. Status as filed: Approved. CRD 336172.

**How much does M4A3 LLC manage?**
M4A3 LLC reports $322,035,401 in regulatory assets under management in its Form ADV filing dated March 31, 2026 (88% discretionary).

**How have M4A3 LLC's assets and staff changed since 2025?**
In the Form ADV data for M4A3 LLC: Regulatory assets under management: $0 in the October 2025 data and $322,035,401 in the October 2026 data. Total employees: 2 in October 2025 and 6 in October 2026. Assets under management move with markets as well as with clients coming and going.

**What types of clients does M4A3 LLC serve?**
By number of clients on Form ADV Item 5.D: high net worth individuals (60); pooled investment vehicles (other than investment companies and business development companies) (5).

**Which custodians does M4A3 LLC use?**
M4A3 LLC's most recent Form ADV filing (Schedule D, Section 5.K(3)) lists Charles Schwab & Co., Inc. and Pershing LLC as custodians holding 10% or more of its separately managed account assets.

**Does M4A3 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/336172

**What changed in M4A3 LLC's recent Form ADV filings?**
In the April 2026 filing data: Employees performing advisory functions went from 2 to 3.

## From the Form ADV filing

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

### Custodians (Schedule D, Section 5.K(3))
- Charles Schwab & Co., Inc.
- Pershing LLC

Custodians holding 10% or more of the firm's separately managed account assets, as filed on Form ADV (Schedule D, Section 5.K(3)). A custodian holds client assets; it does not endorse or supervise the firm. AdvisorCensus has no relationship with any custodian.

### Regulatory assets under management (Item 5.F)
- Total: $322,035,401
- Discretionary: $284,017,068
- Non-discretionary: $38,018,333

### Clients (Item 5.D)

| Client type | Clients | Assets |
| --- | --- | --- |
| High net worth individuals | 60 | $288,324,716 |
| Pooled investment vehicles (other than investment companies and business development companies) | 5 | $33,710,685 |

### Advisory services (Item 5.G)
- Portfolio management for individuals and/or small businesses
- 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: 2025 (1 year)
- Employees: 6 total, 3 performing advisory functions
- Wrap fee program participation: No
- States registered or notice-filed: CO
- Disclosures (Item 11): Reports no disclosure items on Form ADV Item 11.

### Websites listed on Form ADV (Item 1.I)
- m4a3.com

## Assets and staff over time

| Data period | Regulatory assets under management | Employees | Filing dated |
| --- | --- | --- | --- |
| October 2025 | $0 | 2 | July 23, 2025 |
| October 2026 | $322,035,401 | 6 | March 31, 2026 |

Regulatory assets under management: $0 in the October 2025 data and $322,035,401 in the October 2026 data.
Total employees: 2 in October 2025 and 6 in October 2026.

## Changes in the filing (last 12 months)

### April 2026
- Employees performing advisory functions went from 2 to 3.

### December 2025
- Regulatory assets under management went from $0 to $317,330,050.

## Source

Form ADV as filed, October 2026. Values appear as filed. Cite as: AdvisorCensus. M4A3 LLC (CRD 336172): Form ADV filing data as of October 2026.