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Main St.","city":"Carnegie"},{"street":"1000 Cedar KNLS","city":"Newton Square"}]},{"state":"Rhode Island","offices":1,"addresses":[{"street":"650 Main Street","city":"East Greenwich"}]},{"state":"Texas","offices":5,"addresses":[{"street":"611 University Avenue","city":"Lubbock"},{"street":"5718 Westheimer RD","city":"Houston"},{"street":"3100 Monticello Avenue","city":"Dallas"},{"street":"1337 Toro Pass","city":"Wimberly"},{"street":"5465 Legacy DR","city":"Plano"}]},{"state":"Virginia","offices":3,"addresses":[{"street":"332 W Lee Hwy","city":"Warrenton"},{"street":"211 N Union St","city":"Alexandria"},{"street":"37279 Koerner Lane","city":"Purcellville"}]},{"state":"Washington","offices":2,"addresses":[{"street":"8210 SW Hawthorne Lane","city":"Vashon"},{"street":"1108 11th Street","city":"Bellingham"}]}],"advFacts":{"source":{"file":"ia100226.zip","asOf":"2 October 2026"},"telephone":"913-904-5700","stateRegisteredReps":106,"otherAdviserReps":1,"compensation":["A percentage of assets under management","Hourly charges","Fixed fees (other than subscription fees)"],"activities":["Financial planning services","Portfolio management for individuals and/or small businesses","Portfolio management for businesses (other than small businesses) or institutional clients","Pension consulting services","Selection of other advisers (including private fund managers)","Publication of periodicals or newsletters","Educational seminars/workshops"],"financialPlanningClients":"4500","assetMix":[{"label":"Exchange-traded equity securities","percent":23},{"label":"U.S. government/agency bonds","percent":2},{"label":"U.S. state and local bonds","percent":3},{"label":"Investment grade corporate bonds","percent":1},{"label":"Securities issued by registered investment companies or business development companies","percent":62},{"label":"Cash and cash equivalents","percent":9}],"privateFunds":0},"sources":{"adv1FilingDate":"13 August 2026","adv1Url":"https://reports.adviserinfo.sec.gov/reports/ADV/305418/PDF/305418.pdf","brochureDate":"10 June 2026","brochureUrl":"https://files.adviserinfo.sec.gov/IAPD/Content/Common/crd_iapd_Brochure.aspx?BRCHR_VRSN_ID=1047949","iapdCompiledDate":null,"retrievedDate":"15 October 2026","retrievedOn":"2026-10-15","updatedOn":"2026-10-22","holdingsUpdatedOn":"2026-10-21","adv1Pages":{},"brochurePages":{}},"otherBusiness":[],"faq":[{"question":"How many clients does Mariner Platform Solutions have?","answer":"Mariner Platform Solutions has 4,307 clients and manages $7.34 billion for them, as of August 2026. They include 2,686 individual clients, 1,575 high-net-worth individuals, and 46 corporations and other businesses.","source":"Form ADV Part 1A, Items 5.D and 5.F, filed 13 August 2026","sourceRef":{"doc":"adv1","section":"employees"}},{"question":"What services does Mariner Platform Solutions offer?","answer":"Mariner Platform Solutions provides financial planning, portfolio management for individuals and small businesses, portfolio management for institutions, pension consulting, selecting other managers, publishing newsletters, and educational seminars.","source":"Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file","sourceRef":{"doc":"adv1","section":"employees"}},{"question":"How much does Mariner Platform Solutions charge?","answer":"Mariner Platform Solutions charges up to 2.50% a year for its Investment Advisory Fees. The fee is negotiable.","source":"MARINER INDEPENDENT ADV PART 2A, filed 10 June 2026","sourceRef":{"doc":"brochure","section":"fees"}},{"question":"Which custodians does Mariner Platform Solutions use?","answer":"Mariner Platform Solutions’ separately managed account assets are held at Charles Schwab & Co., Inc. (San Francisco, CA), with $3.76B and National Financial Services LLC (Boston, MA), with $3.51B. Only custodians holding at least a tenth of those assets are named.","source":"Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 13 August 2026","sourceRef":{"doc":"adv1","section":"custodians"}},{"question":"How many financial advisors does Mariner Platform Solutions have?","answer":"Mariner Platform Solutions has 106 investment adviser representatives registered with state securities authorities, out of 161 employees, and 106 perform investment advisory functions. 1 employee is a registered representative of a broker-dealer and 23 employees are licensed insurance agents.","source":"Form ADV Part 1A, Items 5.A and 5.B, from the SEC's 2 October 2026 data file","sourceRef":{"doc":"adv1","section":"employees"}},{"question":"What does Mariner Platform Solutions invest in?","answer":"At the end of its last fiscal year, Mariner Platform Solutions’ separately managed accounts held 62% registered funds (mutual funds, ETFs, BDCs), 23% exchange-traded equities, 9% cash and equivalents, 3% state and local bonds, 2% U.S. government and agency bonds and 1% investment grade corporate bonds.","source":"Form ADV Part 1A, Items 5.K.(1) and 7.B, from the SEC's 2 October 2026 data file","sourceRef":{"doc":"adv1","section":"employees"}},{"question":"Who owns Mariner Platform Solutions?","answer":"Mariner Platform Solutions is owned through a chain of holding companies by Green Equity Investors Side VIII L.P. and the Danhakl Revocable Trust. Its direct owner is Mariner Advisor Network, LLC (75% or more).","source":"Form ADV Part 1A, Schedules A and B, filed 13 August 2026","sourceRef":{"doc":"adv1","section":"scheduleA"}},{"question":"How does Mariner Platform Solutions get paid?","answer":"Mariner Platform Solutions is paid through a percentage of assets under management, hourly charges and fixed fees. Its Form ADV lists no commissions or performance-based fees among how it is paid.","source":"Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file","sourceRef":{"doc":"adv1","section":"employees"}},{"question":"Is Mariner Platform Solutions registered with the SEC?","answer":"Yes, Mariner Platform Solutions has been registered with the SEC as an investment adviser since 12 September 2019. Its CRD number is 305418 and its SEC file number is 801-117332.","source":"Form ADV Part 1A, Item 1, filed 13 August 2026; IAPD firm record","sourceRef":{"doc":"adv1","section":"identity"}},{"question":"How do I contact Mariner Platform Solutions?","answer":"Mariner Platform Solutions’ main office is at 5700 West 112th Street, Suite 500, Overland Park, KS 66211. Its phone number is 913-904-5700.","source":"Form ADV Part 1A, Item 1.F, filed 13 August 2026","sourceRef":{"doc":"adv1","section":"offices"}}],"holdings":null,"notice":"Compiled from public SEC Form ADV filings on the dates in `sources`. Facts as filed; not a rating, ranking, or recommendation. Niva is not affiliated with this firm. Disciplinary history is deliberately not included here or on the page; the SEC publishes the complete record at the `iapdUrl` above."}