{ "crd_number": 109587, "slug": "castleark-management-llc-chicago-il-109587", "primary_business_name": "CASTLEARK MANAGEMENT LLC", "legal_name": "CASTLEARK MANAGEMENT LLC", "dbas": [], "city": "Chicago", "state": "IL", "country": "United States", "cbsa_code": "16980", "metro": { "cbsa_code": "16980", "common_name": "Chicago", "msa_name": "Chicago-Naperville-Elgin, IL-IN", "path": "/advisors/il/chicago" }, "registration_type": "sec", "registration_status": "Approved", "registration_date": "1999-02-04", "years_registered": 27, "period": "2026-10-01", "filing_date": "2026-04-01", "carried_forward": false, "raum_total": 4585548400.0, "raum_discretionary": 4585548400.0, "raum_non_discretionary": 0.0, "raum_band": "1b_5b", "raum_band_label": "$1 billion to $5 billion", "total_employees": 28, "advisory_employees": 18, "client_count_bucket": "fewer_than_5_in_some_types", "clients_by_type": { "state_municipal": { "raum": 2698708400.0, "count": 11 }, "investment_companies": { "raum": 311716000.0, "count": 1 }, "pension_profit_sharing": { "raum": 1135898000.0, "count": 3, "fewer_than_5": true }, "high_net_worth_individuals": { "raum": 76815000.0, "count": 46 }, "pooled_investment_vehicles": { "raum": 362411000.0, "count": 5 } }, "compensation_types": [ "percentage_of_aum" ], "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": [ "IL" ], "websites": [ "https://castleark.com" ], "iapd_url": "https://adviserinfo.sec.gov/firm/summary/109587", "city_as_filed": "CHICAGO", "url": "https://advisorcensus.com/firm/castleark-management-llc-chicago-il-109587", "display_name": "Castleark Management LLC", "summary": "Castleark Management LLC is an SEC-registered investment advisory firm in Chicago, IL, registered since 1999, reporting $1 billion to $5 billion in regulatory assets under management in its Form ADV filing dated April 1, 2026.", "citation": "AdvisorCensus. Castleark Management LLC (CRD 109587): Form ADV filing data as of October 2026.", "registration_type_label": "SEC-registered investment adviser", "compensation_labels": [ "A percentage of assets under your management" ], "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 Castleark Management LLC compensated?", "a": "On its Form ADV (Item 5.E, October 2026), Castleark Management LLC reports these compensation arrangements: a percentage of assets under its management. The amounts are in Item 5 of its Form ADV Part 2A brochure." }, { "q": "Where is Castleark Management LLC located?", "a": "Castleark Management LLC's principal office is in Chicago, IL, according to its Form ADV." }, { "q": "Is Castleark Management LLC registered with the SEC or a state?", "a": "Castleark Management LLC is an SEC-registered investment advisory firm, registered since 1999. Status as filed: Approved. CRD 109587." }, { "q": "How much does Castleark Management LLC manage?", "a": "Castleark Management LLC reports $4,585,548,400 in regulatory assets under management in its Form ADV filing dated April 1, 2026 (100% discretionary)." }, { "q": "How have Castleark Management LLC's assets and staff changed since 2021?", "a": "In the Form ADV data for Castleark Management LLC: Regulatory assets under management: $3,456,502,200 in the October 2021 data and $4,585,548,400 in the October 2026 data, up 33%. Total employees: 30 in October 2021 and 28 in October 2026. Assets under management move with markets as well as with clients coming and going." }, { "q": "What types of clients does Castleark Management LLC serve?", "a": "By number of clients on Form ADV Item 5.D: high net worth individuals (46); state or municipal government entities (including government pension plans) (11); pooled investment vehicles (other than investment companies and business development companies) (5)." }, { "q": "Which custodians does Castleark Management LLC use?", "a": "Castleark Management LLC's most recent Form ADV filing (Schedule D, Section 5.K(3)) lists BNY Mellon, Brown Brothers Harriman, Northern Trust and State Street as custodians holding 10% or more of its separately managed account assets." }, { "q": "Does Castleark 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/109587" }, { "q": "What changed in Castleark Management LLC's recent Form ADV filings?", "a": "In the May 2026 filing data: Regulatory assets under management went from $3,970,780,800 to $4,585,548,400 (+15%)." } ], "filing_history": [ { "period": "2021-10-01", "regulatory_assets_under_management": 3456502200.0, "total_employees": 30, "filing_date": "2021-03-31" }, { "period": "2022-10-01", "regulatory_assets_under_management": 3666123000.0, "total_employees": 34, "filing_date": "2022-04-05" }, { "period": "2023-10-01", "regulatory_assets_under_management": 2782446000.0, "total_employees": 29, "filing_date": "2023-03-30" }, { "period": "2024-10-01", "regulatory_assets_under_management": 3059938100.0, "total_employees": 30, "filing_date": "2024-03-30" }, { "period": "2025-10-01", "regulatory_assets_under_management": 3970780800.0, "total_employees": 28, "filing_date": "2025-05-08" }, { "period": "2026-10-01", "regulatory_assets_under_management": 4585548400.0, "total_employees": 28, "filing_date": "2026-04-01" } ], "recent_changes": [ { "period": "2026-05-01", "period_label": "May 2026", "notes": [ "Regulatory assets under management went from $3,970,780,800 to $4,585,548,400 (+15%)." ] } ], "fees_from_brochure": null, "custodians": [ { "name": "BNY Mellon", "name_as_filed": "BNY MELLON", "affiliated": false }, { "name": "Brown Brothers Harriman", "name_as_filed": "BROWN BROTHERS HARRIMAN", "affiliated": false }, { "name": "Northern Trust", "name_as_filed": "NORTHERN TRUST", "affiliated": false }, { "name": "State Street", "name_as_filed": "STATE STREET", "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/castleark-management-llc-chicago-il-109587.md", "clients": [ { "type": "high_net_worth_individuals", "label": "High net worth individuals", "count": 46, "fewer_than_5": false, "raum": 76815000.0 }, { "type": "investment_companies", "label": "Investment companies", "count": 1, "fewer_than_5": false, "raum": 311716000.0 }, { "type": "pooled_investment_vehicles", "label": "Pooled investment vehicles (other than investment companies and business development companies)", "count": 5, "fewer_than_5": false, "raum": 362411000.0 }, { "type": "pension_profit_sharing", "label": "Pension and profit sharing plans (but not the plan participants or government pension plans)", "count": 3, "fewer_than_5": true, "raum": 1135898000.0 }, { "type": "state_municipal", "label": "State or municipal government entities (including government pension plans)", "count": 11, "fewer_than_5": false, "raum": 2698708400.0 } ], "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/109587", "operator": "BH Monitor Services, LLC", "license": "https://creativecommons.org/licenses/by/4.0/", "credit": "AdvisorCensus (advisorcensus.com), from SEC Form ADV data" } }