Shannon Investment Management
Updated today
Data sourced from SEC public records (and other sources when available). Refreshed weekly • Updated today.
Client assets under management
$14,432,286
Clients
15
73% high-net-worth
Advisors
1
of 1 employees
Firm type
Independent
1 advisor with up to 2 employees
Fewer clients per advisor generally means more personalized, proactive service. Higher ratios may reflect streamlined models or lower minimums.
Clients per advisor
15
TypicalAverage account size
$962,152
About
The firm provides fee-only, discretionary investment management and ongoing investment guidance to individuals, families, trusts, businesses and nonprofit entities. It focuses on managing client assets and explicitly does not provide financial planning or tax advice.
Portfolios are built primarily with passively managed exchange-traded funds (with mutual funds and, when appropriate, individual stocks or bonds used selectively) and reflect a framework grounded in modern portfolio theory, market-efficiency research and a mix of strategic and tactical asset allocation. The firm conducts fundamental market analysis using mainstream financial publications and research services and emphasizes low-cost, diversified exposure while monitoring market conditions.
The adviser’s principal brings more than three decades of institutional investing and trading experience, including leadership over multi‑billion-dollar strategies, a background that is uncommon for a small advisory practice with a concentrated client roster. The firm recommends Interactive Brokers as its custodian, relies on custodian-driven reporting and fee administration, and discloses operational reliance on third-party service providers.
Client services
Portfolio management
Expertise
Passive / index investing
Private / alternative investments
Fee options
0.60% annually
Fee-only: strictly fee-only investment management on a percentage of assets under management basis
Main office location
Shannon Investment Management
Falmouth MA, United States
Number of offices
1
Most active in
Shannon Investment Management has reported serving >5 clients in these states in the last 12 months.
Massachusetts
Disclosures
Firm disclosures are reported in Form ADV Part 1A, Item 11. They include criminal charges, regulatory actions, civil proceedings, and professional disciplinary events involving the firm or its advisory affiliates.
Exclamation point means they have disclosures of this type. Check mark means no disclosures of this type were found.
Business activities & affiliations
These affiliations may expand the services this firm offers and, in some cases, how they are compensated.
Is not active or affiliated with:
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Insurance agent
They sell insurance products and may earn commissions on those sales.
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Broker-dealer / trader
They provide brokerage services and may earn transaction-based compensation in addition to advisory fees.
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Bank
They're affiliated with a bank that may offer its own financial products and services.
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Trust company
They provide trust and estate administration services, typically for separate fees.
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Fund sponsor
They manage or sponsor investment funds and may earn management or performance-based fees if clients invest in them.
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Accountant / CPA / tax prep
They offer tax and accounting services, typically for separate fees.
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Lawyer
They provide legal services, typically billed separately.
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Real estate agent
They facilitate real estate transactions and may earn commissions.
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Other specialized services
They may provide services such as pension consulting or municipal advisory work, typically for separate fees.
Forms ADV
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