{ "crd_number": 151664, "slug": "mariner-overland-park-ks-151664", "primary_business_name": "MARINER", "legal_name": "MARINER MANAGED ACCOUNT SOLUTIONS, LLC", "dbas": [ "MARINER" ], "city": "Overland Park,", "state": "KS", "country": "United States", "cbsa_code": "28140", "metro": { "cbsa_code": "28140", "common_name": "Kansas City", "msa_name": "Kansas City, MO-KS", "path": "/advisors/mo/kansas-city" }, "registration_type": "sec", "registration_status": "Approved", "registration_date": "2010-07-28", "years_registered": 16, "period": "2026-10-01", "filing_date": "2026-08-05", "carried_forward": false, "raum_total": 2770128298.0, "raum_discretionary": 2735036176.0, "raum_non_discretionary": 35092122.0, "raum_band": "1b_5b", "raum_band_label": "$1 billion to $5 billion", "total_employees": 13, "advisory_employees": 7, "client_count_bucket": null, "clients_by_type": { "individuals": { "raum": 2346345504.0, "count": 3491 }, "high_net_worth_individuals": { "raum": 423782794.0, "count": 46 } }, "compensation_types": [ "percentage_of_aum" ], "advisory_activities": [ "portfolio_management_businesses_institutional", "portfolio_management_individuals" ], "wrap_fee_participant": true, "disclosure_yes_count": 0, "states_registered": [ "AK", "AZ", "CA", "CT", "DC", "FL", "GA", "IL", "KS", "LA", "MA", "MD", "ME", "MI", "MO", "NC", "NH", "NJ", "NM", "NY", "OH", "OR", "PA", "RI", "SC", "TN", "TX", "UT", "VA", "VT", "WA" ], "websites": [ "https://linkedin.com/company/access-mariner/posts?feedView=all", "https://mmas.mariner.com" ], "iapd_url": "https://adviserinfo.sec.gov/firm/summary/151664", "city_as_filed": "OVERLAND PARK,", "url": "https://advisorcensus.com/firm/mariner-overland-park-ks-151664", "display_name": "Mariner", "summary": "Mariner is an SEC-registered investment advisory firm in Overland Park,, KS, registered since 2010, reporting $1 billion to $5 billion in regulatory assets under management in its Form ADV filing dated August 5, 2026.", "citation": "AdvisorCensus. Mariner (CRD 151664): 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 businesses (other than small businesses) or institutional clients" ], "quick_answers": [ { "q": "How is Mariner compensated?", "a": "On its Form ADV (Item 5.E, October 2026), Mariner 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 Mariner located?", "a": "Mariner's principal office is in Overland Park,, KS, according to its Form ADV; the September 2026 filing also lists 1 other office (Schedule D, Section 1.F)." }, { "q": "Is Mariner registered with the SEC or a state?", "a": "Mariner is an SEC-registered investment advisory firm, registered since 2010. Status as filed: Approved. CRD 151664." }, { "q": "How much does Mariner manage?", "a": "Mariner reports $2,770,128,298 in regulatory assets under management in its Form ADV filing dated August 5, 2026 (99% discretionary)." }, { "q": "How have Mariner's assets and staff changed since 2021?", "a": "In the Form ADV data for Mariner: Regulatory assets under management: $1,299,443,460 in the October 2021 data and $2,770,128,298 in the October 2026 data, up 113%. Total employees: 6 in October 2021 and 13 in October 2026. Assets under management move with markets as well as with clients coming and going." }, { "q": "What types of clients does Mariner serve?", "a": "By number of clients on Form ADV Item 5.D: individuals (other than high net worth individuals) (3,491); high net worth individuals (46)." }, { "q": "Which custodians does Mariner use?", "a": "Mariner's most recent Form ADV filing (Schedule D, Section 5.K(3)) lists National Financial Services LLC as a custodian holding 10% or more of its separately managed account assets." }, { "q": "Does Mariner 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/151664" }, { "q": "What changed in Mariner's recent Form ADV filings?", "a": "In the April 2026 filing data: Changed its legal name from Baystate Wealth Management LLC to Mariner Managed Account Solutions, LLC. Employees performing advisory functions went from 6 to 7. Regulatory assets under management went from $2,352,770,746 to $2,770,128,298 (+18%). Updated its list of owners and control persons (Schedule A)." } ], "filing_history": [ { "period": "2021-10-01", "regulatory_assets_under_management": 1299443460.0, "total_employees": 6, "filing_date": "2021-04-05" }, { "period": "2022-10-01", "regulatory_assets_under_management": 1571527380.0, "total_employees": 13, "filing_date": "2022-06-18" }, { "period": "2023-10-01", "regulatory_assets_under_management": 1504797634.0, "total_employees": 11, "filing_date": "2023-03-31" }, { "period": "2024-10-01", "regulatory_assets_under_management": 1917168691.0, "total_employees": 12, "filing_date": "2024-04-05" }, { "period": "2025-10-01", "regulatory_assets_under_management": 2352770746.0, "total_employees": 12, "filing_date": "2025-05-01" }, { "period": "2026-10-01", "regulatory_assets_under_management": 2770128298.0, "total_employees": 13, "filing_date": "2026-08-05" } ], "recent_changes": [ { "period": "2026-04-01", "period_label": "April 2026", "notes": [ "Changed its legal name from Baystate Wealth Management LLC to Mariner Managed Account Solutions, LLC.", "Employees performing advisory functions went from 6 to 7.", "Regulatory assets under management went from $2,352,770,746 to $2,770,128,298 (+18%).", "Updated its list of owners and control persons (Schedule A)." ] } ], "fees_from_brochure": null, "custodians": [ { "name": "National Financial Services LLC", "name_as_filed": "NATIONAL FINANCIAL SERVICES LLC", "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/mariner-overland-park-ks-151664.md", "clients": [ { "type": "individuals", "label": "Individuals (other than high net worth individuals)", "count": 3491, "fewer_than_5": false, "raum": 2346345504.0 }, { "type": "high_net_worth_individuals", "label": "High net worth individuals", "count": 46, "fewer_than_5": false, "raum": 423782794.0 } ], "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/151664", "operator": "BH Monitor Services, LLC", "license": "https://creativecommons.org/licenses/by/4.0/", "credit": "AdvisorCensus (advisorcensus.com), from SEC Form ADV data" } }