{
  "crd_number": 144594,
  "slug": "o-shaughnessy-asset-management-llc-stamford-ct-144594",
  "primary_business_name": "O'SHAUGHNESSY ASSET MANAGEMENT, LLC",
  "legal_name": "O'SHAUGHNESSY ASSET MANAGEMENT, LLC",
  "dbas": [],
  "city": "Stamford",
  "state": "CT",
  "country": "United States",
  "cbsa_code": "14860",
  "metro": {
    "cbsa_code": "14860",
    "common_name": "Bridgeport",
    "msa_name": "Bridgeport-Stamford-Danbury, CT",
    "path": "/advisors/ct/bridgeport"
  },
  "registration_type": "sec",
  "registration_status": "Approved",
  "registration_date": "2007-07-25",
  "years_registered": 19,
  "period": "2026-10-01",
  "filing_date": "2025-12-16",
  "carried_forward": false,
  "raum_total": 19782138121.0,
  "raum_discretionary": 19782138121.0,
  "raum_non_discretionary": 0.0,
  "raum_band": "over_5b",
  "raum_band_label": "Over $5 billion",
  "total_employees": 103,
  "advisory_employees": 53,
  "client_count_bucket": "fewer_than_5_in_some_types",
  "clients_by_type": {
    "charitable": {
      "raum": 235816479.0,
      "count": 40
    },
    "individuals": {
      "raum": 0.0,
      "count": 0,
      "fewer_than_5": true
    },
    "banking_thrift": {
      "raum": 0.0,
      "count": 0,
      "fewer_than_5": true
    },
    "state_municipal": {
      "raum": 207089791.0,
      "count": 9
    },
    "insurance_companies": {
      "raum": 0.0,
      "count": 0,
      "fewer_than_5": true
    },
    "investment_companies": {
      "raum": 265665597.0,
      "count": 1
    },
    "pension_profit_sharing": {
      "raum": 69782622.0,
      "count": 18
    },
    "other_investment_advisers": {
      "raum": 0.0,
      "count": 0,
      "fewer_than_5": true
    },
    "high_net_worth_individuals": {
      "raum": 16001154356.0,
      "count": 10734
    },
    "pooled_investment_vehicles": {
      "raum": 1146020339.0,
      "count": 8
    },
    "corporations_other_businesses": {
      "raum": 1810856156.0,
      "count": 344
    },
    "business_development_companies": {
      "raum": 0.0,
      "count": 0
    },
    "sovereign_wealth_foreign_official": {
      "raum": 45752781.0,
      "count": 2,
      "fewer_than_5": true
    }
  },
  "compensation_types": [
    "other",
    "percentage_of_aum",
    "performance_based"
  ],
  "advisory_activities": [
    "portfolio_management_businesses_institutional",
    "portfolio_management_individuals",
    "portfolio_management_investment_companies",
    "portfolio_management_pooled_vehicles"
  ],
  "wrap_fee_participant": true,
  "disclosure_yes_count": 0,
  "states_registered": [
    "AK",
    "AL",
    "AR",
    "AZ",
    "CA",
    "CO",
    "CT",
    "DC",
    "DE",
    "FL",
    "GA",
    "HI",
    "IA",
    "ID",
    "IL",
    "IN",
    "KS",
    "KY",
    "LA",
    "MA",
    "MD",
    "ME",
    "MI",
    "MN",
    "MO",
    "MS",
    "MT",
    "NC",
    "ND",
    "NE",
    "NH",
    "NJ",
    "NM",
    "NV",
    "NY",
    "OH",
    "OK",
    "OR",
    "PA",
    "PR",
    "RI",
    "SC",
    "SD",
    "TN",
    "TX",
    "UT",
    "VA",
    "VI",
    "VT",
    "WA",
    "WI",
    "WV",
    "WY"
  ],
  "websites": [
    "https://canvas.osam.com",
    "https://facebook.com/OSAMLLC",
    "https://facebook.com/OSAMRESEARCH",
    "https://osam.com",
    "https://osfunds.com",
    "https://twitter.com/OSAMRESEARCH",
    "https://vimeo.com/user110429897 - O'Shaughnessy Asset Management"
  ],
  "iapd_url": "https://adviserinfo.sec.gov/firm/summary/144594",
  "city_as_filed": "STAMFORD",
  "url": "https://advisorcensus.com/firm/o-shaughnessy-asset-management-llc-stamford-ct-144594",
  "display_name": "O'Shaughnessy Asset Management, LLC",
  "summary": "O'Shaughnessy Asset Management, LLC is an SEC-registered investment advisory firm in Stamford, CT, registered since 2007, reporting over $5 billion in regulatory assets under management in its Form ADV filing dated December 16, 2025.",
  "citation": "AdvisorCensus. O'Shaughnessy Asset Management, LLC (CRD 144594): Form ADV filing data as of October 2026.",
  "registration_type_label": "SEC-registered investment adviser",
  "compensation_labels": [
    "A percentage of assets under your management",
    "Performance-based fees",
    "Other"
  ],
  "advisory_activity_labels": [
    "Portfolio management for individuals and/or small businesses",
    "Portfolio management for investment companies (and business development companies)",
    "Portfolio management for pooled investment vehicles (other than investment companies)",
    "Portfolio management for businesses (other than small businesses) or institutional clients"
  ],
  "quick_answers": [
    {
      "q": "How is O'Shaughnessy Asset Management, LLC compensated?",
      "a": "On its Form ADV (Item 5.E, October 2026), O'Shaughnessy Asset Management, LLC reports these compensation arrangements: a percentage of assets under its management; performance-based fees; other. The amounts are in Item 5 of its Form ADV Part 2A brochure."
    },
    {
      "q": "Where is O'Shaughnessy Asset Management, LLC located?",
      "a": "O'Shaughnessy Asset Management, LLC's principal office is in Stamford, CT, according to its Form ADV."
    },
    {
      "q": "Is O'Shaughnessy Asset Management, LLC registered with the SEC or a state?",
      "a": "O'Shaughnessy Asset Management, LLC is an SEC-registered investment advisory firm, registered since 2007. Status as filed: Approved. CRD 144594."
    },
    {
      "q": "How much does O'Shaughnessy Asset Management, LLC manage?",
      "a": "O'Shaughnessy Asset Management, LLC reports $19,782,138,121 in regulatory assets under management in its Form ADV filing dated December 16, 2025 (100% discretionary)."
    },
    {
      "q": "How have O'Shaughnessy Asset Management, LLC's assets and staff changed since 2021?",
      "a": "In the Form ADV data for O'Shaughnessy Asset Management, LLC: Regulatory assets under management: $4,825,829,604 in the October 2021 data and $19,782,138,121 in the October 2026 data, up 310%. Total employees: 35 in October 2021 and 103 in October 2026. Assets under management move with markets as well as with clients coming and going."
    },
    {
      "q": "What types of clients does O'Shaughnessy Asset Management, LLC serve?",
      "a": "By number of clients on Form ADV Item 5.D: high net worth individuals (10,734); corporations or other businesses not listed above (344); charitable organizations (40)."
    },
    {
      "q": "Does O'Shaughnessy Asset Management, LLC report any disciplinary disclosures?",
      "a": "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/144594"
    },
    {
      "q": "What changed in O'Shaughnessy Asset Management, LLC's recent Form ADV filings?",
      "a": "In the January 2026 filing data: Employees performing advisory functions went from 47 to 53. Regulatory assets under management went from $12,599,503,777 to $19,782,138,121 (+57%). Updated its list of owners and control persons (Schedule A)."
    }
  ],
  "filing_history": [
    {
      "period": "2021-10-01",
      "regulatory_assets_under_management": 4825829604.0,
      "total_employees": 35,
      "filing_date": "2021-08-23"
    },
    {
      "period": "2022-10-01",
      "regulatory_assets_under_management": 6885813750.0,
      "total_employees": 43,
      "filing_date": "2022-09-30"
    },
    {
      "period": "2023-10-01",
      "regulatory_assets_under_management": 6304455763.0,
      "total_employees": 60,
      "filing_date": "2023-02-28"
    },
    {
      "period": "2024-10-01",
      "regulatory_assets_under_management": 7983580249.0,
      "total_employees": 69,
      "filing_date": "2024-08-05"
    },
    {
      "period": "2025-10-01",
      "regulatory_assets_under_management": 12599503777.0,
      "total_employees": 81,
      "filing_date": "2024-12-17"
    },
    {
      "period": "2026-10-01",
      "regulatory_assets_under_management": 19782138121.0,
      "total_employees": 103,
      "filing_date": "2025-12-16"
    }
  ],
  "recent_changes": [
    {
      "period": "2026-01-01",
      "period_label": "January 2026",
      "notes": [
        "Employees performing advisory functions went from 47 to 53.",
        "Regulatory assets under management went from $12,599,503,777 to $19,782,138,121 (+57%).",
        "Updated its list of owners and control persons (Schedule A)."
      ]
    }
  ],
  "fees_from_brochure": null,
  "custodians": [],
  "custodians_note": null,
  "markdown_url": "https://advisorcensus.com/firm/o-shaughnessy-asset-management-llc-stamford-ct-144594.md",
  "clients": [
    {
      "type": "individuals",
      "label": "Individuals (other than high net worth individuals)",
      "count": 0,
      "fewer_than_5": true,
      "raum": 0.0
    },
    {
      "type": "high_net_worth_individuals",
      "label": "High net worth individuals",
      "count": 10734,
      "fewer_than_5": false,
      "raum": 16001154356.0
    },
    {
      "type": "banking_thrift",
      "label": "Banking or thrift institutions",
      "count": 0,
      "fewer_than_5": true,
      "raum": 0.0
    },
    {
      "type": "investment_companies",
      "label": "Investment companies",
      "count": 1,
      "fewer_than_5": false,
      "raum": 265665597.0
    },
    {
      "type": "business_development_companies",
      "label": "Business development companies",
      "count": 0,
      "fewer_than_5": false,
      "raum": 0.0
    },
    {
      "type": "pooled_investment_vehicles",
      "label": "Pooled investment vehicles (other than investment companies and business development companies)",
      "count": 8,
      "fewer_than_5": false,
      "raum": 1146020339.0
    },
    {
      "type": "pension_profit_sharing",
      "label": "Pension and profit sharing plans (but not the plan participants or government pension plans)",
      "count": 18,
      "fewer_than_5": false,
      "raum": 69782622.0
    },
    {
      "type": "charitable",
      "label": "Charitable organizations",
      "count": 40,
      "fewer_than_5": false,
      "raum": 235816479.0
    },
    {
      "type": "state_municipal",
      "label": "State or municipal government entities (including government pension plans)",
      "count": 9,
      "fewer_than_5": false,
      "raum": 207089791.0
    },
    {
      "type": "other_investment_advisers",
      "label": "Other investment advisers",
      "count": 0,
      "fewer_than_5": true,
      "raum": 0.0
    },
    {
      "type": "insurance_companies",
      "label": "Insurance companies",
      "count": 0,
      "fewer_than_5": true,
      "raum": 0.0
    },
    {
      "type": "sovereign_wealth_foreign_official",
      "label": "Sovereign wealth funds and foreign official institutions",
      "count": 2,
      "fewer_than_5": true,
      "raum": 45752781.0
    },
    {
      "type": "corporations_other_businesses",
      "label": "Corporations or other businesses not listed above",
      "count": 344,
      "fewer_than_5": false,
      "raum": 1810856156.0
    }
  ],
  "disclosure_line": "Reports no disclosure items on Form ADV Item 11.",
  "disclosure_items": [],
  "indexable": true,
  "suppressed": false,
  "claimed": false,
  "enhanced": false,
  "provided_by_the_firm": null,
  "source": {
    "name": "Form ADV",
    "as_of": "2026-10-01",
    "iapd_url": "https://adviserinfo.sec.gov/firm/summary/144594",
    "operator": "BH Monitor Services, LLC",
    "license": "https://creativecommons.org/licenses/by/4.0/",
    "credit": "AdvisorCensus (advisorcensus.com), from SEC Form ADV data"
  }
}