Single Family OfficeRIA · CRD 336172SEC-RegisteredPrivate Fund Adviser

Updated:

M4A3

M4A3 LLC is a private single-family office in the United States, operating with no public disclosure of its principals, AUM, or portfolio.

M4A3

M4A3 LLC is an SEC-registered investment adviser in Boulder, CO, registered since 2025. The firm manages $322 million in assets, with $284 million on a discretionary basis. It has 6 employees and 3 investment advisers.

General information

Firm type

Single Family Office

Year founded

AUM

Undisclosed

Location

Region

North America

Country

United States

City

Corporate office

Frequently asked questions

Who runs investment decisions at M4A3?

M4A3 does not publicly identify any investment principals, including a CEO, CIO, or managing director. No public records, press releases, or regulatory filings name the individuals responsible for capital allocation. This level of non-disclosure is consistent with a family office that handles all investment functions internally and has no need to attract external capital or talent through public-facing leadership.

Is M4A3 structured as a single family office or does it operate more like a venture firm?

M4A3 is structured as a limited liability company and functions as a single-family office, not a venture firm. It does not solicit outside investors, market a fund vehicle, or disclose a public-facing investment thesis. The LLC structure provides legal flexibility for direct investments and intergenerational wealth transfer while maintaining liability protection, but its complete absence of external branding separates it from even the most discreet venture firms that must still court founders and limited partners.

Does M4A3 participate in fund commitments or only direct deals?

M4A3's allocation between fund commitments and direct deals is not publicly known. No disclosures to the SEC, regulatory databases, or limited-partner registries identify commitments to private equity, venture capital, or hedge funds. Without a trackable investment footprint, any characterization of its direct-versus-FoF split would be speculative.

Which sectors does M4A3 explicitly avoid?

M4A3 does not publish an investment policy, sector preferences, or exclusion list. Some family offices with undisclosed strategies are known to avoid sectors that attract public controversy or heavy regulation — such as defense, fossil fuels, or vice industries — but no evidence confirms or refutes such restrictions for M4A3.

How does M4A3 source proprietary deal flow?

M4A3 likely sources deal flow through private networks, given its complete lack of public-facing presence. In the absence of a website, industry conference participation, or an identifiable investment team, the office cannot be inbound-sourced by founders, GPs, or intermediaries through conventional channels. This suggests a reliance on long-standing relationships, family connections, and discreet banker or multi-family office referral networks — a posture that intentionally filters out unsolicited opportunities.

Does M4A3 maintain philanthropic structures, and how are they separated?

No philanthropic foundation, donor-advised fund, or charitable trust affiliated with M4A3 has been identified in public records. If the family maintains a giving vehicle, it is structured separately and does not reference the M4A3 name. This is common among privacy-focused families who wish to decouple their investment operations from their public-facing charitable activities.

What is M4A3's known posture on co-investments alongside external GPs?

M4A3's co-investment activity is not publicly documented. The office does not appear in limited-partner co-investment club rosters, GP announcements of syndicated rounds, or industry databases tracking direct co-investor participation. If the office co-invests, it does so under confidentiality agreements that prevent public attribution, a practice used by families who view their investment activity as a private competitive advantage.

Profile maintained by using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.

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