{"url":"https://nivawealth.com/firms/mack-investment-securities-17643","iapdUrl":"https://adviserinfo.sec.gov/firm/summary/17643","regulatoryAum":302589639,"crd":"17643","adviserRoster":{"asOf":"2026-10-09","items":[{"crd":"1770016","suffix":null,"lastName":"BUDZIAK","firstName":"JOHN","middleName":"RUSSELL"},{"crd":"1304974","suffix":null,"lastName":"CHIODRAS","firstName":"NORMAN","middleName":"PETER"},{"crd":"1281232","suffix":null,"lastName":"KAIZ","firstName":"SHELDON","middleName":"DAVID"},{"crd":"1735615","suffix":"III","lastName":"KELTY","firstName":"JOHN","middleName":"ANTHONY"},{"crd":"5167264","suffix":null,"lastName":"MACK","firstName":"KEVIN","middleName":"EDWARD"},{"crd":"4814988","suffix":null,"lastName":"MACK","firstName":"MICHAEL","middleName":"STEPHEN"},{"crd":"1007322","suffix":null,"lastName":"MACK","firstName":"STEPHEN","middleName":"WALTER"},{"crd":"2204646","suffix":null,"lastName":"MILSTEIN","firstName":"STEVEN","middleName":"BRIAN"}],"total":8,"loadedAt":"2026-10-10T00:20:19.761928+00:00","sourceUrl":"https://reports.adviserinfo.sec.gov/reports/CompilationReports/IA_INDVL_Feed_10_09_2026.xml.zip"},"history":[{"filedOn":"2021-03-30","regulatoryAum":186261174,"clients":679,"employees":9,"offices":2},{"filedOn":"2022-07-29","regulatoryAum":200652924,"clients":827,"employees":9,"offices":2},{"filedOn":"2023-03-31","regulatoryAum":203485844,"clients":650,"employees":7,"offices":2},{"filedOn":"2024-05-10","regulatoryAum":221655455,"clients":701,"employees":7,"offices":2},{"filedOn":"2025-03-31","regulatoryAum":263507750,"clients":676,"employees":8,"offices":2},{"filedOn":"2026-03-31","regulatoryAum":302589639,"clients":673,"employees":8,"offices":2}],"secFileNumber":"801-29570","legalName":"Mack 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(other than HNW)","clients":379,"regulatoryAum":64994316},{"label":"High-net-worth individuals","clients":282,"regulatoryAum":230767875},{"label":"Pension and profit-sharing plans","clients":12,"regulatoryAum":6827448}],"feePrograms":[{"role":"other","program":"Consulting Services","summary":"Consulting is billed hourly at $300 to $500, as a fixed fee of $2,000 to $8,000, or as 1.25% to 2.25% of assets under review.","sourceUrl":"https://files.adviserinfo.sec.gov/IAPD/Content/Common/crd_iapd_Brochure.aspx?BRCHR_VRSN_ID=1038597","versionId":1038597,"submittedOn":"2026-03-31","documentName":"ADV 2A 03-31-26"},{"role":"other","program":"Financial Planning","summary":"Financial planning is a one-time fixed fee of $2,000 to $8,000, an ongoing fixed fee of $800 to $5,000 per quarter, or $300 to $500 per hour with a two-hour minimum.","sourceUrl":"https://files.adviserinfo.sec.gov/IAPD/Content/Common/crd_iapd_Brochure.aspx?BRCHR_VRSN_ID=1038597","versionId":1038597,"submittedOn":"2026-03-31","documentName":"ADV 2A 03-31-26"}],"brochureCoverage":{"scope":"sec_inventory","status":"reviewed_no_numerical_schedule","checkedAt":"2026-10-22T08:03:47.028566+00:00","documents":[{"name":"ADV 2A 03-31-26","status":"read","sourceUrl":"https://files.adviserinfo.sec.gov/IAPD/Content/Common/crd_iapd_Brochure.aspx?BRCHR_VRSN_ID=1038597","versionId":1038597,"submittedOn":"2026-03-31"}]},"custodians":[{"name":"SEI Private Trust Co.","shortName":"SEI Private Trust","location":"Oaks, PA","smaAssets":48186953},{"name":"Axos Clearing LLC","shortName":"Axos Clearing","location":"Englewood, CO","smaAssets":152465971}],"custodyNote":"Mack Investment Securities does not have custody of client assets.","otherCustodians":[],"leadership":[{"name":"Stephen Walter Mack","title":"Trustee Is President and CCO","crd":"1007322"}],"ownership":[{"label":"Stephen Walter Mack","detail":"Trustee is president and cco in the 75% or more ownership band and a control person, since January 1986."}],"branchOffices":null,"filedOffices":{"otherThanPrincipal":1,"privateResidences":0},"listedOfficeAddresses":2,"foreignOffices":[],"officesByState":[{"state":"Illinois","offices":2,"addresses":[{"street":"211 Waukegan Road, Ste 300","city":"Northfield","headquarters":true},{"street":"2001 Midwest RD","city":"Oak Brook"}]}],"advFacts":{"source":{"file":"ia100226.zip","asOf":"2 October 2026"},"telephone":"847-657-6600","stateRegisteredReps":6,"otherAdviserReps":0,"compensation":["A percentage of assets under management","Hourly charges","Fixed fees (other than subscription fees)","Commissions"],"activities":["Financial planning services","Portfolio management for individuals and/or small businesses","Selection of other advisers (including private fund managers)","Publication of periodicals or newsletters","Market timing services"],"financialPlanningClients":"251-500","assetMix":[{"label":"Exchange-traded equity securities","percent":51},{"label":"Investment grade corporate bonds","percent":1},{"label":"Securities issued by registered investment companies or business development companies","percent":22},{"label":"Securities issued by pooled investment vehicles (other than registered investment companies)","percent":2},{"label":"Cash and cash equivalents","percent":24}],"privateFunds":0},"sources":{"adv1FilingDate":"31 March 2026","adv1Url":"https://reports.adviserinfo.sec.gov/reports/ADV/17643/PDF/17643.pdf","brochureDate":"31 March 2026","brochureUrl":"https://files.adviserinfo.sec.gov/IAPD/Content/Common/crd_iapd_Brochure.aspx?BRCHR_VRSN_ID=1038597","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 Mack Investment Securities have?","answer":"Mack Investment Securities has 673 clients and manages $303 million for them, as of March 2026. They include 379 individual clients, 282 high-net-worth individuals, and 12 pension and profit-sharing plans.","source":"Form ADV Part 1A, Items 5.D and 5.F, filed 31 March 2026","sourceRef":{"doc":"adv1","section":"employees"}},{"question":"What services does Mack Investment Securities offer?","answer":"Mack Investment Securities provides financial planning, portfolio management for individuals and small businesses, selecting other managers, publishing newsletters, and market timing.","source":"Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file","sourceRef":{"doc":"adv1","section":"employees"}},{"question":"Which custodians does Mack Investment Securities use?","answer":"Mack Investment Securities’ separately managed account assets are held at Axos Clearing LLC (Englewood, CO), with $152M and SEI Private Trust Co. (Oaks, PA), with $48.2M. Only custodians holding at least a tenth of those assets are named.","source":"Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 31 March 2026","sourceRef":{"doc":"adv1","section":"custodians"}},{"question":"How many financial advisors does Mack Investment Securities have?","answer":"Mack Investment Securities has 6 investment adviser representatives registered with state securities authorities, out of 8 employees, and 8 perform investment advisory functions. 8 employees are registered representatives of a broker-dealer and 6 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 Mack Investment Securities invest in?","answer":"At the end of its last fiscal year, Mack Investment Securities’ separately managed accounts held 51% exchange-traded equities, 24% cash and equivalents, 22% registered funds (mutual funds, ETFs, BDCs), 2% pooled vehicles (private funds and similar) 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 Mack Investment Securities?","answer":"Mack Investment Securities’ direct owner is Stephen Walter Mack (75% or more).","source":"Form ADV Part 1A, Schedules A and B, filed 31 March 2026","sourceRef":{"doc":"adv1","section":"scheduleA"}},{"question":"How does Mack Investment Securities get paid?","answer":"Mack Investment Securities is paid through a percentage of assets under management, hourly charges, fixed fees and commissions. Its Form ADV lists no 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":"How do I contact Mack Investment Securities?","answer":"Mack Investment Securities’ main office is at 211 Waukegan Road, Ste 300, Northfield, IL 60093. Its phone number is 847-657-6600.","source":"Form ADV Part 1A, Item 1.F, filed 31 March 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."}