{ "crd_number": 112493, "slug": "ellington-management-group-l-l-c-old-greenwich-ct-112493", "primary_business_name": "ELLINGTON MANAGEMENT GROUP, L.L.C.", "legal_name": "ELLINGTON MANAGEMENT GROUP, L.L.C.", "dbas": [], "city": "Old Greenwich", "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": "1999-04-01", "years_registered": 27, "period": "2026-10-01", "filing_date": "2026-08-14", "carried_forward": false, "raum_total": 20757004631.0, "raum_discretionary": 18075481234.0, "raum_non_discretionary": 2681523397.0, "raum_band": "over_5b", "raum_band_label": "Over $5 billion", "total_employees": 164, "advisory_employees": 68, "client_count_bucket": "fewer_than_5_in_some_types", "clients_by_type": { "state_municipal": { "raum": 786851069.0, "count": 1, "fewer_than_5": true }, "other_investment_advisers": { "raum": 2681523397.0, "count": 6 }, "pooled_investment_vehicles": { "raum": 10900330676.0, "count": 25 }, "sovereign_wealth_foreign_official": { "raum": 6388299489.0, "count": 1, "fewer_than_5": true } }, "compensation_types": [ "percentage_of_aum", "performance_based" ], "advisory_activities": [ "portfolio_management_businesses_institutional", "portfolio_management_pooled_vehicles" ], "wrap_fee_participant": false, "disclosure_yes_count": 0, "states_registered": [ "CT", "NY" ], "websites": [ "https://ellington.com", "https://linkedin.com/company/ellington-management-group" ], "iapd_url": "https://adviserinfo.sec.gov/firm/summary/112493", "city_as_filed": "OLD GREENWICH", "url": "https://advisorcensus.com/firm/ellington-management-group-l-l-c-old-greenwich-ct-112493", "display_name": "Ellington Management Group, L.L.C.", "summary": "Ellington Management Group, L.L.C. is an SEC-registered investment advisory firm in Old Greenwich, CT, registered since 1999, reporting over $5 billion in regulatory assets under management in its Form ADV filing dated August 14, 2026.", "citation": "AdvisorCensus. Ellington Management Group, L.L.C. (CRD 112493): 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 pooled investment vehicles (other than investment companies)", "Portfolio management for businesses (other than small businesses) or institutional clients" ], "quick_answers": [ { "q": "How is Ellington Management Group, L.L.C. compensated?", "a": "On its Form ADV (Item 5.E, October 2026), Ellington Management Group, L.L.C. reports these compensation arrangements: a percentage of assets under its management; performance-based fees. The amounts are in Item 5 of its Form ADV Part 2A brochure." }, { "q": "Where is Ellington Management Group, L.L.C. located?", "a": "Ellington Management Group, L.L.C.'s principal office is in Old Greenwich, CT, according to its Form ADV; the September 2026 filing also lists 2 other offices (Schedule D, Section 1.F)." }, { "q": "Is Ellington Management Group, L.L.C. registered with the SEC or a state?", "a": "Ellington Management Group, L.L.C. is an SEC-registered investment advisory firm, registered since 1999. Status as filed: Approved. CRD 112493." }, { "q": "How much does Ellington Management Group, L.L.C. manage?", "a": "Ellington Management Group, L.L.C. reports $20,757,004,631 in regulatory assets under management in its Form ADV filing dated August 14, 2026 (87% discretionary)." }, { "q": "How have Ellington Management Group, L.L.C.'s assets and staff changed since 2021?", "a": "In the Form ADV data for Ellington Management Group, L.L.C.: Regulatory assets under management: $15,387,579,581 in the October 2021 data and $20,757,004,631 in the October 2026 data, up 35%. Total employees: 142 in October 2021 and 164 in October 2026. Assets under management move with markets as well as with clients coming and going." }, { "q": "What types of clients does Ellington Management Group, L.L.C. serve?", "a": "By number of clients on Form ADV Item 5.D: pooled investment vehicles (other than investment companies and business development companies) (25); other investment advisers (6); state or municipal government entities (including government pension plans) (1)." }, { "q": "Which custodians does Ellington Management Group, L.L.C. use?", "a": "Ellington Management Group, L.L.C.'s most recent Form ADV filing (Schedule D, Section 5.K(3)) lists The Bank of New York Mellon as a custodian holding 10% or more of its separately managed account assets." }, { "q": "Does Ellington Management Group, L.L.C. 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/112493" }, { "q": "What changed in Ellington Management Group, L.L.C.'s recent Form ADV filings?", "a": "In the April 2026 filing data: Regulatory assets under management went from $12,283,274,750 to $20,757,004,631 (+69%). Updated its list of owners and control persons (Schedule A)." } ], "filing_history": [ { "period": "2021-10-01", "regulatory_assets_under_management": 15387579581.0, "total_employees": 142, "filing_date": "2021-05-26" }, { "period": "2022-10-01", "regulatory_assets_under_management": 13258868505.0, "total_employees": 173, "filing_date": "2022-05-20" }, { "period": "2023-10-01", "regulatory_assets_under_management": 10894131111.0, "total_employees": 162, "filing_date": "2023-07-20" }, { "period": "2024-10-01", "regulatory_assets_under_management": 10127384993.0, "total_employees": 162, "filing_date": "2024-08-27" }, { "period": "2025-10-01", "regulatory_assets_under_management": 12283274750.0, "total_employees": 160, "filing_date": "2025-03-31" }, { "period": "2026-10-01", "regulatory_assets_under_management": 20757004631.0, "total_employees": 164, "filing_date": "2026-08-14" } ], "recent_changes": [ { "period": "2026-04-01", "period_label": "April 2026", "notes": [ "Regulatory assets under management went from $12,283,274,750 to $20,757,004,631 (+69%).", "Updated its list of owners and control persons (Schedule A)." ] } ], "fees_from_brochure": null, "custodians": [ { "name": "The Bank of New York Mellon", "name_as_filed": "THE BANK OF NEW YORK MELLON", "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/ellington-management-group-l-l-c-old-greenwich-ct-112493.md", "clients": [ { "type": "pooled_investment_vehicles", "label": "Pooled investment vehicles (other than investment companies and business development companies)", "count": 25, "fewer_than_5": false, "raum": 10900330676.0 }, { "type": "state_municipal", "label": "State or municipal government entities (including government pension plans)", "count": 1, "fewer_than_5": true, "raum": 786851069.0 }, { "type": "other_investment_advisers", "label": "Other investment advisers", "count": 6, "fewer_than_5": false, "raum": 2681523397.0 }, { "type": "sovereign_wealth_foreign_official", "label": "Sovereign wealth funds and foreign official institutions", "count": 1, "fewer_than_5": true, "raum": 6388299489.0 } ], "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/112493", "operator": "BH Monitor Services, LLC", "license": "https://creativecommons.org/licenses/by/4.0/", "credit": "AdvisorCensus (advisorcensus.com), from SEC Form ADV data" } }