No commissions, no ads, no advice. This The Mather Group profile draws only on public records, each linked so you can confirm it yourself.
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Check the SEC adviser record. Open the SEC's IAPD record for The Mather Group (CRD #156005) and confirm its registration.
Read the filings. Review the Form ADV / Form CRS and any disclosure section linked from the IAPD page.
Confirm the entity. Match CRD #156005 / The Mather Group so you're reading the right firm.
The short answer: is The Mather Group a fiduciary?
Yes. The Mather Group is a fiduciary: as a fee-only registered investment adviser, it owes you a duty to act in your interest for the whole advisory relationship, and it isn't a broker-dealer. The Mather Group is an SEC-registered investment adviser (CRD #156005) and reported $13.4 billion in regulatory assets under management as of its latest Form ADV (filed September 4, 2026), across 4,773 clients. Because it's fee-only, it's paid by clients and earns no commissions on products. Its Form ADV (Item 5.E) lists how it is paid: a percentage of assets under management, hourly charges, fixed fees, and other. You don't have to take this on trust. The filings are public, and checking them is quick.
Its Form ADV doesn't report a broker-dealer registration or a related broker-dealer, so the adviser's fiduciary standard is the one that applies to its advice.
What "fiduciary" means: a fiduciary is legally bound to place a client's interests above its own. (More on fiduciary duty)
The Mather Group at a glance
✅ Verified from public filings, last checked October 5, 2026. The Mather Group (SEC CRD #156005) is a fiduciary for the whole advisory relationship, on a fee-only basis, with $13.4 billion in regulatory assets under management. Every figure below links to its primary source.
What | The Mather Group | Source |
|---|---|---|
SEC CRD | #156005 | |
Registration | Registered investment adviser (RIA), not a broker-dealer | |
Registered since | February 18, 2011 (SEC) | |
Fiduciary? | Yes, for the whole advisory relationship (fee-only RIA) | |
Fee model | Fee-only | Form ADV Item 5.E |
How it's paid | A percentage of assets under management, hourly charges, fixed fees, and other | Form ADV Item 5.E |
Regulatory Assets Under Management | $13.4 billion (Form ADV filed September 4, 2026) | |
Client accounts | 15,200 (14,161 discretionary) | |
Employees | 186 (97 in advisory roles) | |
Ownership | Parent-owned | |
Disclosures | Form ADV answers Yes to one or more disciplinary questions. Read them on IAPD | |
HQ | Chicago, IL |
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The Mather Group fees: what you'll pay
What The Mather Group costs you tracks how The Mather Group earns, and the fee structure makes it plain. The firm is fee-only: its Form ADV (Item 5.E) reports client-paid fees, such as a percentage of assets, hourly or fixed fees, and no commissions. That structure avoids commission conflicts. Fee-only doesn't automatically mean low-cost. It means the cost is the advisory fee, stated plainly.
Fee-only means the firm is paid only by its clients, never by commissions on the products it recommends.
Who owns The Mather Group, and what conflicts does it disclose?
The Mather Group's ownership is spelled out in the public record. The Mather Group is owned by Mather Holdings, LLC, as listed in Schedule A of its Form ADV. (Form ADV Schedule A)
Its Form ADV Part 2A describes the firm's conflicts of interest, including how it and its advisers are paid.
The Mather Group SEC record: disclosures
To check The Mather Group's regulatory record, start with the firm's own filings. The Mather Group's Form ADV answers Yes to one or more disciplinary-history questions. A disclosure can be a regulatory, civil or criminal matter involving the firm or a related person. Read each item in context on IAPD before drawing conclusions. If there are The Mather Group disclosures to read, the public record is where they are, and where they should be read.
On the record, it has been registered with the SEC since February 18, 2011, makes notice filings in 51 jurisdictions, and reports 186 employees, 97 of them in investment advisory roles. "Is The Mather Group legit?" comes up a lot. Its registration, CRD and filings are public and verifiable. That confirms it's a real, regulated adviser. The part worth your time is what you're paying and earning.
Reading The Mather Group reviews against the public record
Star ratings and client comments describe what working with a firm felt like. They usually don't show what the firm reports to regulators. Before you weigh The Mather Group reviews, check three things this profile takes from the public record. First, how the firm is paid: it reports being paid only by its clients and takes no commissions, which makes it fee-only. Second, who owns it and what conflicts it discloses. Third, whether its Form ADV reports any disciplinary history. Read reviews alongside the record, not instead of it.
How to verify The Mather Group yourself
Verifying this directly takes three steps:
SEC adviser record (IAPD): https://adviserinfo.sec.gov/firm/summary/156005.
Form ADV / CRS: linked from the IAPD page.
Confirm the entity: match The Mather Group (CRD #156005) so you're reading the right firm.
What The Mather Group does and who it serves
On its Form ADV, The Mather Group reports providing financial planning, portfolio management for individuals and small businesses, selection of other advisers, newsletters, and educational seminars.
It reports providing financial planning to about 4,000 clients in its last fiscal year (Form ADV Item 5.H), a count the form keeps separate from the client totals below.
Its Form ADV (Item 5.D) breaks its clients down by type, at least 4,776 in all:
Client type | Clients | Assets managed |
|---|---|---|
Individuals | 1,897 | $1.22 billion |
High-net-worth individuals | 2,876 | $12.22 billion |
Pension and profit-sharing plans | Fewer than 5 | $1.5 million |
Charities | Fewer than 5 | $1.7 million |
Corporations or other businesses | Fewer than 5 | $4.8 million |
It reports 15,200 client accounts, more than the roughly 4,773 clients counted above (many clients hold more than one account), 14,161 discretionary (the firm can trade without seeking your approval first) and 1,039 non-discretionary (Item 5.F). Its main office is in Chicago, IL.
It reports that it or a related person has custody of certain client assets, which brings extra safeguards such as surprise examinations. The specifics are in its Form ADV.
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The firm checks out in minutes. The real work is seeing everything you hold, together.
Confirming The Mather Group is registered takes a few minutes. However diligent the advisor, they see a fraction of the picture by default: the old 401(k) at a former employer, a spouse's holdings, fees folded into a fund. This is where Truthifi comes in.
How Truthifi can help
Truthifi links your accounts read-only and shows what you own, how it's allocated, how it's performing and where the risk sits, including single-stock exposure, returns next to a benchmark, a fee breakdown of the fees on each account, by type, and your Truthifi Score. You can share the accounts you choose with your advisor at The Mather Group.
Prefer your own AI? A paid Truthifi plan lets you connect an AI assistant that supports MCP sign-in, such as Claude. Truthifi Connect is the lighter membership for people who only want to use their own assistant. Questions about your fees need Monitoring or Monitoring Plus+.
Ask AI about your accounts at The Mather Group
Once your accounts are connected read-only, you can ask in plain English:
"What do I own across my accounts at The Mather Group and everything else, and how is it allocated?"
"What am I really paying in fees across all of these accounts?"
Try it with Truthifi: start for free at app.truthifi.com and run a Monitoring Checkup (limits apply).
No commissions, no ads, no advice: Truthifi is not an investment adviser and doesn't give investment, tax or legal advice. Its access to your bank and brokerage accounts is read-only. Start free (limits apply). Monitoring Checkup is free. Link up to 10 connections. Plans and limits are on the pricing page → truthifi.com.
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FAQ
Is The Mather Group a fiduciary? Yes. It's a registered investment adviser (CRD #156005), so it owes a fiduciary duty when it advises you. Its Form ADV doesn't report a broker-dealer registration or a related broker-dealer.
Is The Mather Group fee-only? Its Form ADV (Item 5.E) doesn't report commissions as compensation. It's paid by clients through fees such as a percentage of assets, hourly or fixed fees. The fee schedule is in its Form ADV Part 2A.
Who owns The Mather Group? The Mather Group is owned by Mather Holdings, LLC, as listed in Schedule A of its Form ADV.
Does The Mather Group have complaints or disclosures? Yes. Its Form ADV answers Yes to one or more disciplinary-history questions. Read each item on IAPD, in context. A disclosure is not by itself proof of current wrongdoing.
Is The Mather Group legit? The Mather Group is registered with the SEC (CRD #156005) and its filings are public on the SEC's IAPD site, which confirms it is a real, regulated firm. Registration doesn't tell you whether it's the right fit or what you'll pay, so read the fee and conflict sections of its Form ADV.
Can AI help me check whether I'm getting good value? Yes. Start free (limits apply): Monitoring Checkup is free and lets you link up to 10 connections. You can also connect an AI assistant you already use (such as Claude). On Monitoring or Monitoring Plus+ you can ask it, in plain English, about the fees on each of your accounts. Truthifi is not an investment adviser and doesn't give investment, tax or legal advice.
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About this profile
Truthifi built this profile from the firm's own SEC filings (Form ADV and, where filed, Form CRS). Every page is reviewed by the Truthifi Team before publishing. The Truthifi advisor fact packs are an ongoing series checking U.S. investment advisers against their public filings, one firm at a time.
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A note on sources. The facts on this page come from publicly available documents, The Mather Group's SEC filings, each linked inline so you can verify it yourself (SEC data current as of October 5, 2026). This is general information, not financial or legal advice, and Truthifi is not affiliated with The Mather Group. Regulatory records change, so always confirm against the official sources linked above. Spot something that should be corrected? Email us at support@truthifi.com.
Disclaimer: This article is for educational purposes only and does not constitute financial, tax, or legal advice. It should not be construed as a personalized recommendation regarding any investment, financial advisor, or financial product. All calculations use hypothetical scenarios and historical return assumptions; actual results will vary. Past performance does not guarantee future results. Consult a qualified financial professional for guidance specific to your situation. Truthifi is an investment monitoring platform — not a financial advisor, broker-dealer, or tax professional. Truthifi does not manage assets, recommend investments, sell financial products, or provide personalized financial advice. Truthifi earns no revenue from advisor referrals, product commissions, or AUM fees. Statistics and data cited reflect publicly available sources current as of the article’s publication date. Sources are linked throughout.