{
  "crd_number": 104550,
  "slug": "iridian-asset-management-llc-westport-ct-104550",
  "primary_business_name": "IRIDIAN ASSET MANAGEMENT LLC",
  "legal_name": "IRIDIAN ASSET MANAGEMENT LLC",
  "dbas": [],
  "city": "Westport",
  "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": "1995-12-05",
  "years_registered": 30,
  "period": "2026-10-01",
  "filing_date": "2026-08-12",
  "carried_forward": false,
  "raum_total": 280161820.0,
  "raum_discretionary": 280161820.0,
  "raum_non_discretionary": 0.0,
  "raum_band": "100m_500m",
  "raum_band_label": "$100 million to $500 million",
  "total_employees": 5,
  "advisory_employees": 3,
  "client_count_bucket": "fewer_than_5_in_some_types",
  "clients_by_type": {
    "other": {
      "raum": 8154610.0,
      "count": 2,
      "description": "PARTNERSHIPS",
      "fewer_than_5": true
    },
    "high_net_worth_individuals": {
      "raum": 82753905.0,
      "count": 7
    },
    "pooled_investment_vehicles": {
      "raum": 164504183.0,
      "count": 4
    },
    "corporations_other_businesses": {
      "raum": 24749122.0,
      "count": 1,
      "fewer_than_5": true
    }
  },
  "compensation_types": [
    "percentage_of_aum",
    "performance_based"
  ],
  "advisory_activities": [
    "portfolio_management_businesses_institutional",
    "portfolio_management_individuals",
    "portfolio_management_pooled_vehicles"
  ],
  "wrap_fee_participant": false,
  "disclosure_yes_count": 0,
  "states_registered": [
    "CT",
    "MA",
    "MI",
    "NY",
    "TX"
  ],
  "websites": [
    "https://iridian.com",
    "https://linkedin.com/company/iridian-asset-management-llc/about"
  ],
  "iapd_url": "https://adviserinfo.sec.gov/firm/summary/104550",
  "city_as_filed": "WESTPORT",
  "url": "https://advisorcensus.com/firm/iridian-asset-management-llc-westport-ct-104550",
  "display_name": "Iridian Asset Management LLC",
  "summary": "Iridian Asset Management LLC is an SEC-registered investment advisory firm in Westport, CT, registered since 1995, reporting $100 million to $500 million in regulatory assets under management in its Form ADV filing dated August 12, 2026.",
  "citation": "AdvisorCensus. Iridian Asset Management LLC (CRD 104550): 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"
  ],
  "advisory_activity_labels": [
    "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"
  ],
  "quick_answers": [
    {
      "q": "How is Iridian Asset Management LLC compensated?",
      "a": "On its Form ADV (Item 5.E, October 2026), Iridian Asset Management LLC reports these compensation arrangements: a percentage of assets under its management; performance-based fees."
    },
    {
      "q": "Where is Iridian Asset Management LLC located?",
      "a": "Iridian Asset Management LLC's principal office is in Westport, CT, according to its Form ADV."
    },
    {
      "q": "Is Iridian Asset Management LLC registered with the SEC or a state?",
      "a": "Iridian Asset Management LLC is an SEC-registered investment advisory firm, registered since 1995. Status as filed: Approved. CRD 104550."
    },
    {
      "q": "How much does Iridian Asset Management LLC manage?",
      "a": "Iridian Asset Management LLC reports $280,161,820 in regulatory assets under management in its Form ADV filing dated August 12, 2026 (100% discretionary)."
    },
    {
      "q": "How have Iridian Asset Management LLC's assets and staff changed since 2021?",
      "a": "In the Form ADV data for Iridian Asset Management LLC: Regulatory assets under management: $5,633,603,201 in the October 2021 data and $280,161,820 in the October 2026 data, down 95%. Total employees: 41 in October 2021 and 5 in October 2026. Assets under management move with markets as well as with clients coming and going."
    },
    {
      "q": "What types of clients does Iridian Asset Management LLC serve?",
      "a": "By number of clients on Form ADV Item 5.D: high net worth individuals (7); pooled investment vehicles (other than investment companies and business development companies) (4); other (2)."
    },
    {
      "q": "Which custodians does Iridian Asset Management LLC use?",
      "a": "Iridian Asset Management LLC's most recent Form ADV filing (Schedule D, Section 5.K(3)) lists BNY Mellon Private Wealth, CIBC Private Wealth and Northern Trust Securities, Inc. as custodians holding 10% or more of its separately managed account assets."
    },
    {
      "q": "Does Iridian 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/104550"
    },
    {
      "q": "What changed in Iridian Asset Management LLC's recent Form ADV filings?",
      "a": "In the April 2026 filing data: Employees performing advisory functions went from 5 to 3. Regulatory assets under management went from $366,873,060 to $280,161,820 (-24%)."
    }
  ],
  "filing_history": [
    {
      "period": "2021-10-01",
      "regulatory_assets_under_management": 5633603201.0,
      "total_employees": 41,
      "filing_date": "2021-03-29"
    },
    {
      "period": "2022-10-01",
      "regulatory_assets_under_management": 1698287827.0,
      "total_employees": 20,
      "filing_date": "2022-08-15"
    },
    {
      "period": "2023-10-01",
      "regulatory_assets_under_management": 895701169.0,
      "total_employees": 11,
      "filing_date": "2023-03-15"
    },
    {
      "period": "2024-10-01",
      "regulatory_assets_under_management": 372306405.0,
      "total_employees": 11,
      "filing_date": "2024-03-20"
    },
    {
      "period": "2025-10-01",
      "regulatory_assets_under_management": 366873060.0,
      "total_employees": 9,
      "filing_date": "2025-07-02"
    },
    {
      "period": "2026-10-01",
      "regulatory_assets_under_management": 280161820.0,
      "total_employees": 5,
      "filing_date": "2026-08-12"
    }
  ],
  "recent_changes": [
    {
      "period": "2026-04-01",
      "period_label": "April 2026",
      "notes": [
        "Employees performing advisory functions went from 5 to 3.",
        "Regulatory assets under management went from $366,873,060 to $280,161,820 (-24%)."
      ]
    },
    {
      "period": "2026-01-01",
      "period_label": "January 2026",
      "notes": [
        "No longer registered or notice-filed in WI."
      ]
    }
  ],
  "fees_from_brochure": null,
  "custodians": [
    {
      "name": "BNY Mellon Private Wealth",
      "name_as_filed": "BNY MELLON PRIVATE WEALTH",
      "affiliated": false
    },
    {
      "name": "CIBC Private Wealth",
      "name_as_filed": "CIBC PRIVATE WEALTH",
      "affiliated": false
    },
    {
      "name": "Northern Trust Securities, Inc.",
      "name_as_filed": "NORTHERN TRUST SECURITIES, INC.",
      "affiliated": false
    }
  ],
  "custodians_note": "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.",
  "markdown_url": "https://advisorcensus.com/firm/iridian-asset-management-llc-westport-ct-104550.md",
  "clients": [
    {
      "type": "high_net_worth_individuals",
      "label": "High net worth individuals",
      "count": 7,
      "fewer_than_5": false,
      "raum": 82753905.0
    },
    {
      "type": "pooled_investment_vehicles",
      "label": "Pooled investment vehicles (other than investment companies and business development companies)",
      "count": 4,
      "fewer_than_5": false,
      "raum": 164504183.0
    },
    {
      "type": "corporations_other_businesses",
      "label": "Corporations or other businesses not listed above",
      "count": 1,
      "fewer_than_5": true,
      "raum": 24749122.0
    },
    {
      "type": "other",
      "label": "Other",
      "count": 2,
      "fewer_than_5": true,
      "raum": 8154610.0
    }
  ],
  "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/104550",
    "operator": "BH Monitor Services, LLC",
    "license": "https://creativecommons.org/licenses/by/4.0/",
    "credit": "AdvisorCensus (advisorcensus.com), from SEC Form ADV data"
  }
}