Fee-only adviser · Stamford, CT

O'Shaughnessy Asset Management, LLC

O'Shaughnessy Asset Management, LLC is a fee-only investment adviser registered with the U.S. Securities and Exchange Commission, with its main office in Stamford, Connecticut. On its latest Form ADV, filed December 16, 2025, it reports $19.8B in regulatory assets under management, 10,734 individual clients and 53 employees who give investment advice. It reports no commission compensation, is not registered as a broker-dealer and does not act as an insurance agent.

Key facts from Form ADV

RegistrationSEC-registered
Firm CRD number144594 · SEC file 801-68177
Office100 First Stamford Place
Stamford, CT 06902
Phone(203) 975-3333
Websitecanvas.osam.com
Regulatory assets under management$19.8B
Individual clients0 non-high-net-worth, 10,734 high-net-worth
Financial planning clientsNot reported
How it chargesPercentage of assets, Other
ServicesPortfolio management
Employees103
Disciplinary disclosuresNone reported
Latest Form ADV filingDecember 16, 2025

Source: the firm’s Form ADV Part 1A as published by the SEC’s Investment Adviser Public Disclosure database, data as of November 6, 2026. Figures are self-reported by the firm.

What this means for you

  • It also charges a percentage of assets managed for ongoing investment management.
  • Most of its individual clients are high-net-worth, which on Form ADV means they meet the SEC’s qualified-client or qualified-purchaser test: broadly, more than $1 million managed by the adviser or a net worth above $2 million, with the thresholds indexed for inflation.
  • It sponsors or manages a wrap fee program; ask what the bundled fee covers.
  • It reports no disciplinary history on Form ADV.

Before you hire any adviser

Read the firm’s Form ADV Part 2 brochure on its SEC record: it sets out fees, minimums, conflicts of interest and who will manage your money. Ask whether the firm acts as a fiduciary for all of your accounts, how it is paid in total, and who holds your assets. Our guide to choosing a financial adviser lists the questions to ask.

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