{ "crd_number": 146615, "slug": "mainstreet-advisors-chicago-il-146615", "primary_business_name": "MAINSTREET ADVISORS", "legal_name": "MAINSTREET INVESTMENT ADVISORS 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": "2008-03-12", "years_registered": 18, "period": "2026-10-01", "filing_date": "2026-03-27", "carried_forward": false, "raum_total": 5855906939.0, "raum_discretionary": 963175893.0, "raum_non_discretionary": 4892731046.0, "raum_band": "over_5b", "raum_band_label": "Over $5 billion", "total_employees": 26, "advisory_employees": 6, "client_count_bucket": null, "clients_by_type": { "banking_thrift": { "raum": 5852768761.0, "count": 56 }, "high_net_worth_individuals": { "raum": 3138178.0, "count": 2 } }, "compensation_types": [ "fixed", "percentage_of_aum" ], "advisory_activities": [ "periodicals_newsletters", "portfolio_management_businesses_institutional", "portfolio_management_individuals" ], "wrap_fee_participant": false, "disclosure_yes_count": 0, "states_registered": [ "CT", "IA", "IL", "LA", "NC", "NE", "NM", "TN", "TX", "WI" ], "websites": [ "https://linkedin.com/company/mainstreet-advisors-llc/about", "https://mainstreetadv.com" ], "iapd_url": "https://adviserinfo.sec.gov/firm/summary/146615", "city_as_filed": "CHICAGO", "url": "https://advisorcensus.com/firm/mainstreet-advisors-chicago-il-146615", "display_name": "Mainstreet Advisors", "summary": "Mainstreet Advisors is an SEC-registered investment advisory firm in Chicago, IL, registered since 2008, reporting over $5 billion in regulatory assets under management in its Form ADV filing dated March 27, 2026.", "citation": "AdvisorCensus. Mainstreet Advisors (CRD 146615): Form ADV filing data as of October 2026.", "registration_type_label": "SEC-registered investment adviser", "compensation_labels": [ "A percentage of assets under your management", "Fixed fees (other than subscription fees)" ], "advisory_activity_labels": [ "Portfolio management for individuals and/or small businesses", "Portfolio management for businesses (other than small businesses) or institutional clients", "Publication of periodicals or newsletters" ], "quick_answers": [ { "q": "How is Mainstreet Advisors compensated?", "a": "On its Form ADV (Item 5.E, October 2026), Mainstreet Advisors reports these compensation arrangements: a percentage of assets under its management; fixed fees (other than subscription fees). The amounts are in Item 5 of its Form ADV Part 2A brochure." }, { "q": "Where is Mainstreet Advisors located?", "a": "Mainstreet Advisors' principal office is in Chicago, IL, according to its Form ADV; the April 2026 filing also lists 1 other office (Schedule D, Section 1.F)." }, { "q": "Is Mainstreet Advisors registered with the SEC or a state?", "a": "Mainstreet Advisors is an SEC-registered investment advisory firm, registered since 2008. Status as filed: Approved. CRD 146615." }, { "q": "How much does Mainstreet Advisors manage?", "a": "Mainstreet Advisors reports $5,855,906,939 in regulatory assets under management in its Form ADV filing dated March 27, 2026 (16% discretionary)." }, { "q": "How have Mainstreet Advisors' assets and staff changed since 2021?", "a": "In the Form ADV data for Mainstreet Advisors: Regulatory assets under management: $7,776,395,933 in the October 2021 data and $5,855,906,939 in the October 2026 data, down 25%. Total employees: 33 in October 2021 and 26 in October 2026. Assets under management move with markets as well as with clients coming and going." }, { "q": "What types of clients does Mainstreet Advisors serve?", "a": "By number of clients on Form ADV Item 5.D: banking or thrift institutions (56); high net worth individuals (2)." }, { "q": "Does Mainstreet Advisors 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/146615" }, { "q": "What changed in Mainstreet Advisors' recent Form ADV filings?", "a": "In the February 2026 filing data: Registered or notice-filed in NC." } ], "filing_history": [ { "period": "2021-10-01", "regulatory_assets_under_management": 7776395933.0, "total_employees": 33, "filing_date": "2021-09-10" }, { "period": "2022-10-01", "regulatory_assets_under_management": 9932088506.0, "total_employees": 32, "filing_date": "2022-03-30" }, { "period": "2023-10-01", "regulatory_assets_under_management": 11202650906.0, "total_employees": 29, "filing_date": "2023-08-22" }, { "period": "2024-10-01", "regulatory_assets_under_management": 5119845804.0, "total_employees": 18, "filing_date": "2024-09-26" }, { "period": "2025-10-01", "regulatory_assets_under_management": 5409800392.0, "total_employees": 22, "filing_date": "2025-07-24" }, { "period": "2026-10-01", "regulatory_assets_under_management": 5855906939.0, "total_employees": 26, "filing_date": "2026-03-27" } ], "recent_changes": [ { "period": "2026-02-01", "period_label": "February 2026", "notes": [ "Registered or notice-filed in NC." ] }, { "period": "2026-01-01", "period_label": "January 2026", "notes": [ "Added an office in St Pere, WI.", "No longer registered or notice-filed in AR, AZ, CA, FL, IN, MI, NJ, NY, OH, PA." ] } ], "fees_from_brochure": null, "custodians": [], "custodians_note": null, "markdown_url": "https://advisorcensus.com/firm/mainstreet-advisors-chicago-il-146615.md", "clients": [ { "type": "high_net_worth_individuals", "label": "High net worth individuals", "count": 2, "fewer_than_5": false, "raum": 3138178.0 }, { "type": "banking_thrift", "label": "Banking or thrift institutions", "count": 56, "fewer_than_5": false, "raum": 5852768761.0 } ], "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/146615", "operator": "BH Monitor Services, LLC", "license": "https://creativecommons.org/licenses/by/4.0/", "credit": "AdvisorCensus (advisorcensus.com), from SEC Form ADV data" } }