{
  "crd_number": 114085,
  "slug": "mason-street-advisors-llc-milwaukee-wi-114085",
  "primary_business_name": "MASON STREET ADVISORS, LLC",
  "legal_name": "MASON STREET ADVISORS, LLC",
  "dbas": [],
  "city": "Milwaukee",
  "state": "WI",
  "country": "United States",
  "cbsa_code": "33340",
  "metro": {
    "cbsa_code": "33340",
    "common_name": "Milwaukee",
    "msa_name": "Milwaukee-Waukesha, WI",
    "path": "/advisors/wi/milwaukee"
  },
  "registration_type": "sec",
  "registration_status": "Approved",
  "registration_date": "2001-12-17",
  "years_registered": 24,
  "period": "2026-10-01",
  "filing_date": "2026-03-31",
  "carried_forward": false,
  "raum_total": 39079170300.0,
  "raum_discretionary": 39079170300.0,
  "raum_non_discretionary": 0.0,
  "raum_band": "over_5b",
  "raum_band_label": "Over $5 billion",
  "total_employees": 13,
  "advisory_employees": 13,
  "client_count_bucket": null,
  "clients_by_type": {
    "other": {
      "raum": null,
      "count": 0
    },
    "charitable": {
      "raum": null,
      "count": 0
    },
    "individuals": {
      "raum": null,
      "count": 0
    },
    "banking_thrift": {
      "raum": null,
      "count": 0
    },
    "state_municipal": {
      "raum": null,
      "count": 0
    },
    "insurance_companies": {
      "raum": null,
      "count": 0
    },
    "investment_companies": {
      "raum": 39079170300.0,
      "count": 2
    },
    "pension_profit_sharing": {
      "raum": null,
      "count": 0
    },
    "other_investment_advisers": {
      "raum": null,
      "count": 0
    },
    "high_net_worth_individuals": {
      "raum": null,
      "count": 0
    },
    "pooled_investment_vehicles": {
      "raum": null,
      "count": 0
    },
    "corporations_other_businesses": {
      "raum": null,
      "count": 0
    },
    "business_development_companies": {
      "raum": null,
      "count": 0
    },
    "sovereign_wealth_foreign_official": {
      "raum": null,
      "count": 0
    }
  },
  "compensation_types": [
    "other",
    "percentage_of_aum"
  ],
  "advisory_activities": [
    "portfolio_management_investment_companies",
    "selection_of_other_advisers"
  ],
  "wrap_fee_participant": false,
  "disclosure_yes_count": 5,
  "states_registered": [
    "MN",
    "WI"
  ],
  "websites": [],
  "iapd_url": "https://adviserinfo.sec.gov/firm/summary/114085",
  "disclosure_items": [
    {
      "item": "11.C(2)",
      "question": "Has the SEC or the CFTC ever found that the firm or an advisory affiliate was involved in a violation of SEC or CFTC regulations or statutes?"
    },
    {
      "item": "11.C(4)",
      "question": "Has the SEC or the CFTC ever entered an order against the firm or an advisory affiliate in connection with investment-related activity?"
    },
    {
      "item": "11.C(5)",
      "question": "Has the SEC or the CFTC ever imposed a civil money penalty on the firm or an advisory affiliate, or ordered the firm or an advisory affiliate to cease and desist from an activity?"
    },
    {
      "item": "11.D(2)",
      "question": "Has another federal regulator, a state regulator, or a foreign financial regulator ever found that the firm or an advisory affiliate was involved in a violation of investment-related regulations or statutes?"
    },
    {
      "item": "11.D(4)",
      "question": "In the past ten years, has another federal regulator, a state regulator, or a foreign financial regulator entered an order against the firm or an advisory affiliate in connection with investment-related activity?"
    }
  ],
  "city_as_filed": "MILWAUKEE",
  "url": "https://advisorcensus.com/firm/mason-street-advisors-llc-milwaukee-wi-114085",
  "display_name": "Mason Street Advisors, LLC",
  "summary": "Mason Street Advisors, LLC is an SEC-registered investment advisory firm in Milwaukee, WI, registered since 2001, reporting over $5 billion in regulatory assets under management in its Form ADV filing dated March 31, 2026.",
  "citation": "AdvisorCensus. Mason Street Advisors, LLC (CRD 114085): Form ADV filing data as of October 2026.",
  "registration_type_label": "SEC-registered investment adviser",
  "compensation_labels": [
    "A percentage of assets under your management",
    "Other"
  ],
  "advisory_activity_labels": [
    "Portfolio management for investment companies (and business development companies)",
    "Selection of other advisers (including private fund managers)"
  ],
  "quick_answers": [
    {
      "q": "How is Mason Street Advisors, LLC compensated?",
      "a": "On its Form ADV (Item 5.E, October 2026), Mason Street Advisors, LLC reports these compensation arrangements: a percentage of assets under its management; other. The amounts are in Item 5 of its Form ADV Part 2A brochure."
    },
    {
      "q": "Where is Mason Street Advisors, LLC located?",
      "a": "Mason Street Advisors, LLC's principal office is in Milwaukee, WI, according to its Form ADV."
    },
    {
      "q": "Is Mason Street Advisors, LLC registered with the SEC or a state?",
      "a": "Mason Street Advisors, LLC is an SEC-registered investment advisory firm, registered since 2001. Status as filed: Approved. CRD 114085."
    },
    {
      "q": "How much does Mason Street Advisors, LLC manage?",
      "a": "Mason Street Advisors, LLC reports $39,079,170,300 in regulatory assets under management in its Form ADV filing dated March 31, 2026 (100% discretionary)."
    },
    {
      "q": "How have Mason Street Advisors, LLC's assets and staff changed since 2021?",
      "a": "In the Form ADV data for Mason Street Advisors, LLC: Regulatory assets under management: $28,813,000,000 in the October 2021 data and $39,079,170,300 in the October 2026 data, up 36%. 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 Mason Street Advisors, LLC serve?",
      "a": "By number of clients on Form ADV Item 5.D: investment companies (2)."
    },
    {
      "q": "Does Mason Street Advisors, LLC report any disciplinary disclosures?",
      "a": "Reports 5 disclosure items on Form ADV Item 11: yes answers to 11.C(2) (SEC or CFTC finding of a violation), 11.C(4) (SEC or CFTC order), 11.C(5) (SEC or CFTC civil money penalty or cease-and-desist order), 11.D(2) (another regulator's finding of a violation), and 11.D(4) (another regulator's order in the past ten years). Each question covers the firm and its advisory affiliates, and one event can produce several yes answers. The detail of any item is on the firm's SEC record: https://adviserinfo.sec.gov/firm/summary/114085"
    },
    {
      "q": "What changed in Mason Street Advisors, LLC's recent Form ADV filings?",
      "a": "In the April 2026 filing data: Regulatory assets under management went from $35,039,451,532 to $39,079,170,300 (+12%). Updated its list of owners and control persons (Schedule A)."
    }
  ],
  "filing_history": [
    {
      "period": "2021-10-01",
      "regulatory_assets_under_management": 28813000000.0,
      "total_employees": 6,
      "filing_date": "2021-09-16"
    },
    {
      "period": "2022-10-01",
      "regulatory_assets_under_management": 31583485945.0,
      "total_employees": 11,
      "filing_date": "2022-03-31"
    },
    {
      "period": "2023-10-01",
      "regulatory_assets_under_management": 25569711808.0,
      "total_employees": 12,
      "filing_date": "2023-09-14"
    },
    {
      "period": "2024-10-01",
      "regulatory_assets_under_management": 28558864166.0,
      "total_employees": 14,
      "filing_date": "2024-06-10"
    },
    {
      "period": "2025-10-01",
      "regulatory_assets_under_management": 35039451532.0,
      "total_employees": 13,
      "filing_date": "2025-03-28"
    },
    {
      "period": "2026-10-01",
      "regulatory_assets_under_management": 39079170300.0,
      "total_employees": 13,
      "filing_date": "2026-03-31"
    }
  ],
  "recent_changes": [
    {
      "period": "2026-04-01",
      "period_label": "April 2026",
      "notes": [
        "Regulatory assets under management went from $35,039,451,532 to $39,079,170,300 (+12%).",
        "Updated its list of owners and control persons (Schedule A)."
      ]
    }
  ],
  "fees_from_brochure": null,
  "custodians": [],
  "custodians_note": null,
  "markdown_url": "https://advisorcensus.com/firm/mason-street-advisors-llc-milwaukee-wi-114085.md",
  "clients": [
    {
      "type": "individuals",
      "label": "Individuals (other than high net worth individuals)",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "high_net_worth_individuals",
      "label": "High net worth individuals",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "banking_thrift",
      "label": "Banking or thrift institutions",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "investment_companies",
      "label": "Investment companies",
      "count": 2,
      "fewer_than_5": false,
      "raum": 39079170300.0
    },
    {
      "type": "business_development_companies",
      "label": "Business development companies",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "pooled_investment_vehicles",
      "label": "Pooled investment vehicles (other than investment companies and business development companies)",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "pension_profit_sharing",
      "label": "Pension and profit sharing plans (but not the plan participants or government pension plans)",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "charitable",
      "label": "Charitable organizations",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "state_municipal",
      "label": "State or municipal government entities (including government pension plans)",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "other_investment_advisers",
      "label": "Other investment advisers",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "insurance_companies",
      "label": "Insurance companies",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "sovereign_wealth_foreign_official",
      "label": "Sovereign wealth funds and foreign official institutions",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "corporations_other_businesses",
      "label": "Corporations or other businesses not listed above",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    },
    {
      "type": "other",
      "label": "Other",
      "count": 0,
      "fewer_than_5": false,
      "raum": null
    }
  ],
  "disclosure_line": "Reports 5 disclosure items on Form ADV Item 11.",
  "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/114085",
    "operator": "BH Monitor Services, LLC",
    "license": "https://creativecommons.org/licenses/by/4.0/",
    "credit": "AdvisorCensus (advisorcensus.com), from SEC Form ADV data"
  }
}