{"url":"https://nivawealth.com/firms/oak-street-investment-advisors-288019","iapdUrl":"https://adviserinfo.sec.gov/firm/summary/288019","regulatoryAum":125451478,"crd":"288019","adviserRoster":{"asOf":"2026-10-09","items":[{"crd":"5035033","suffix":null,"lastName":"MILDER","firstName":"JACOB","middleName":"Ira"}],"total":1,"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":"2023-06-13","regulatoryAum":102398178,"clients":67,"employees":1,"offices":2},{"filedOn":"2024-06-18","regulatoryAum":111623284,"clients":65,"employees":1,"offices":2},{"filedOn":"2025-02-27","regulatoryAum":112891979,"clients":61,"employees":1,"offices":2},{"filedOn":"2026-09-25","regulatoryAum":125451478,"clients":72,"employees":1,"offices":2}],"secFileNumber":"801-128057","legalName":"Oak Street Investment Advisors, LLC","displayName":"Oak Street Investment Advisors","slug":"oak-street-investment-advisors-288019","website":"https://oakstreetinvestments.com/","classification":{"segment":"individuals","segmentLabel":"Wealth management","type":"independent_wealth_manager","typeLabel":"RIA","feeDisclosure":"full"},"founded":null,"organization":"Colorado limited liability company","fiscalYearEnd":"December","headquarters":{"street":"5500 Greenwood Plaza BLVD, Suite 130","city":"Greenwood Village","state":"CO","stateName":"Colorado","country":"United States","postalCode":"80111"},"tradeNames":["Oak Street Tax Advisory"],"registration":{"secApproved":"26 May 2023","noticeFilings":null,"latestNoticeFiling":null},"wealthAumPerClient":1021304.7846153846,"staff":{"employees":1,"advisory":1,"brokerDealerReps":0,"insuranceAgents":0,"promoters":0},"aum":{"regulatory":125451478,"discretionary":125451478,"discretionaryAccounts":180,"nonDiscretionary":0,"nonDiscretionaryAccounts":0,"wrapProgram":null,"nonUsClientsPct":0,"nonAumClients":4},"clientTypes":[{"label":"Individuals (other than HNW)","clients":36,"regulatoryAum":7494771},{"label":"High-net-worth individuals","clients":29,"regulatoryAum":58890040},{"label":"Pooled investment vehicles","clients":7,"regulatoryAum":59066667}],"feePrograms":[{"role":"other","program":"Financial Planning","summary":"Fixed fees ranging from $3,600 to $8,200 depending on scope; ongoing work billed hourly at up to $300 an hour.","sourceUrl":"https://files.adviserinfo.sec.gov/IAPD/Content/Common/crd_iapd_Brochure.aspx?BRCHR_VRSN_ID=1035787","versionId":1035787,"submittedOn":"2026-03-31","documentName":"OAK STREET INVESTMENT ADVISORS LLC FORM ADV PART 2A"},{"role":"other","program":"Tax Preparation","summary":"A base fee of $500 for an individual 1040 with schedules B and D and one state return; additional schedules $75 to $200 each; Form 1065 minimum $1,000.","sourceUrl":"https://files.adviserinfo.sec.gov/IAPD/Content/Common/crd_iapd_Brochure.aspx?BRCHR_VRSN_ID=1035787","versionId":1035787,"submittedOn":"2026-03-31","documentName":"OAK STREET INVESTMENT ADVISORS LLC FORM ADV PART 2A"}],"brochureCoverage":{"scope":"sec_inventory","status":"reviewed_no_numerical_schedule","checkedAt":"2026-10-22T15:44:33.636466+00:00","documents":[{"name":"OAK STREET INVESTMENT ADVISORS LLC FORM ADV PART 2A","status":"read","sourceUrl":"https://files.adviserinfo.sec.gov/IAPD/Content/Common/crd_iapd_Brochure.aspx?BRCHR_VRSN_ID=1035787","versionId":1035787,"submittedOn":"2026-03-31"}]},"custodians":[{"name":"Charles Schwab & Co., Inc.","shortName":"Charles Schwab","location":"Westlake, TX","smaAssets":12971087},{"name":"Altruist Financial LLC","shortName":"Altruist","location":"Edgewood, NY","smaAssets":18160292}],"custodyNote":"Oak Street Investment Advisors has custody of $59.5M for 7 clients.","otherCustodians":[],"leadership":[{"name":"Jacob Milder","title":"Managing Member/Chief Compliance Officer","crd":"5035033"}],"ownership":[{"label":"Jacob Milder","detail":"Managing member/chief compliance officer in the 75% or more ownership band and a control person, since March 2017."}],"branchOffices":null,"filedOffices":{"otherThanPrincipal":1,"privateResidences":1},"listedOfficeAddresses":1,"foreignOffices":[],"officesByState":[{"state":"Colorado","offices":1,"addresses":[{"street":"5500 Greenwood Plaza BLVD, Suite 130","city":"Greenwood Village","headquarters":true}]}],"advFacts":{"source":{"file":"ia100226.zip","asOf":"2 October 2026"},"telephone":"720-515-6822","stateRegisteredReps":1,"otherAdviserReps":0,"compensation":["A percentage of assets under management","Hourly charges","Fixed fees (other than subscription fees)","Performance-based fees"],"activities":["Financial planning services","Portfolio management for individuals and/or small businesses","Portfolio management for pooled investment vehicles (other than investment companies)"],"financialPlanningClients":"26-50","assetMix":[{"label":"Exchange-traded equity securities","percent":6},{"label":"U.S. government/agency bonds","percent":1},{"label":"Securities issued by registered investment companies or business development companies","percent":45},{"label":"Securities issued by pooled investment vehicles (other than registered investment companies)","percent":47},{"label":"Cash and cash equivalents","percent":1}],"privateFunds":6},"sources":{"adv1FilingDate":"25 September 2026","adv1Url":"https://reports.adviserinfo.sec.gov/reports/ADV/288019/PDF/288019.pdf","brochureDate":"31 March 2026","brochureUrl":"https://files.adviserinfo.sec.gov/IAPD/Content/Common/crd_iapd_Brochure.aspx?BRCHR_VRSN_ID=1035787","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 Oak Street Investment Advisors have?","answer":"Oak Street Investment Advisors has 72 clients and manages $125 million for them, as of September 2026. They include 36 individual clients, 29 high-net-worth individuals and 7 pooled investment vehicles.","source":"Form ADV Part 1A, Items 5.D and 5.F, filed 25 September 2026","sourceRef":{"doc":"adv1","section":"employees"}},{"question":"What services does Oak Street Investment Advisors offer?","answer":"Oak Street Investment Advisors provides financial planning, portfolio management for individuals and small businesses, and portfolio management for pooled vehicles.","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 Oak Street Investment Advisors use?","answer":"Oak Street Investment Advisors’ separately managed account assets are held at Altruist Financial LLC (Edgewood, NY), with $18.2M and Charles Schwab & Co., Inc. (Westlake, TX), with $13M. Only custodians holding at least a tenth of those assets are named.","source":"Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 25 September 2026","sourceRef":{"doc":"adv1","section":"custodians"}},{"question":"How many financial advisors does Oak Street Investment Advisors have?","answer":"Oak Street Investment Advisors has 1 investment adviser representative registered with state securities authorities, out of 1 employees, and 1 perform investment advisory functions. None are registered representatives of a broker-dealer or 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 Oak Street Investment Advisors invest in?","answer":"At the end of its last fiscal year, Oak Street Investment Advisors’ separately managed accounts held 47% pooled vehicles (private funds and similar), 45% registered funds (mutual funds, ETFs, BDCs), 6% exchange-traded equities, 1% U.S. government and agency bonds and 1% cash and equivalents. It advises 6 private funds.","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 Oak Street Investment Advisors?","answer":"Oak Street Investment Advisors’ direct owner is Jacob Milder (75% or more).","source":"Form ADV Part 1A, Schedules A and B, filed 25 September 2026","sourceRef":{"doc":"adv1","section":"scheduleA"}},{"question":"How does Oak Street Investment Advisors get paid?","answer":"Oak Street Investment Advisors is paid through a percentage of assets under management, hourly charges, fixed fees and performance-based fees. Its Form ADV lists no commissions 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 Oak Street Investment Advisors?","answer":"Oak Street Investment Advisors’ main office is at 5500 Greenwood Plaza BLVD, Suite 130, Greenwood Village, CO 80111. Its phone number is 720-515-6822. Its website is oakstreetinvestments.com.","source":"Form ADV Part 1A, Item 1.F, filed 25 September 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."}