Wealth manager, independent · Naperville, IL
Calamos Wealth Management LLC
SEC-registered investment adviser · CRD 143490 · SEC 801-67787
At a glance
Calamos Wealth Management LLC is an SEC-registered investment adviser based in Naperville, Illinois, with $5.5B in regulatory assets under management as of its Form ADV filed July 23, 2026. It reports 4,072 individual clients, 3,141 of them high-net-worth, holding an average of about $1.2 million each, and 51 employees. That ranks it 193rd among the nation’s 5,657 independent wealth management RIAs and 15th of 226 in Illinois. It reports Fidelity as the custodian for its clients’ separately managed accounts.
Main office 630-245-7200calamos.comLinkedInAs filed on Form ADV
- Regulatory AUM
- $5.5B
- Rank among independent wealth managers
- #193 of 5,657
- Rank among all SEC RIAs
- #1,972 of 17,210
- Rank in Illinois
- #15 of 226
- Individual clients
- 4,072
- High-net-worth clients
- 3,141
- Accounts
- 4,308
- Discretionary
- 89% of AUM
- Employees
- 51
- Advisory staff
- 39
- Offices
- 7
Owners and executives on its Form ADV
- John P. Calamos Sr.Founder, Chairman & Global Co-Cio
- John S. KoudounisPresident & Chief Executive Officer
- Thomas E. HermanEVP, Chief Financial Officer
- Daniel L. DufresneEVP, Chief Operating Officer
- Joseph L. WeidenbachSVP, Head of Calamos Wealth Management
- Erik D. OjalaSVP, General Counsel & Secretary
- Walter M. KellySVP, Chief Compliance Officer
Custody and brokerage
Broker-dealer
Hybrid RIA
Calamos Wealth Management LLC is a hybrid RIA: 21 of its employees are also registered representatives of a broker-dealer. It names an affiliated broker-dealer: Calamos Financial Services LLC.
- Calamos Financial Services LLC ↗CRD 19850
It doesn’t hold client accounts or customer funds itself. Its annual audited report filed with the SEC, February 2026
Its Form ADV brochure (filed March 2026) names Calamos Financial Services as the broker-dealer its advisers are registered with.
Certain members of our management team are registered representatives of Calamos Financial Services LLC. • Calamos Global Dynamic Income Fund is a closed-end investment company registered under the 1940 Act. • Calamos Global Opportunities F
Who it serves
| Client type | Clients | Regulatory AUM | Share |
|---|---|---|---|
| High-net-worth individuals | 3,141 | $4.5B | 82% |
| Individuals | 931 | $347M | 6% |
| Corporations or other businesses | 91 | $316M | 6% |
| Charitable organizations | 42 | $244M | 4% |
| Pension and profit sharing plans | 87 | $71M | 1% |
| Other | 16 | $1M | <1% |
Disciplinary disclosures
Calamos Wealth Management LLC reports no disciplinary disclosures in Item 11 of Form ADV. Read the details on the SEC’s adviser search ↗
Services
- Financial planning
- Portfolio management for individuals and small businesses
- Pension consulting
- Selecting other advisers
- Other services
How it’s paid
- A percentage of assets under management
- Fixed fees
Form ADV and brochures on the SEC’s adviser search ↗calamos.com ↗
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- Assets, accounts, clients and staff, ten years of filings
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- 7 namedLocked
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Free while Atlas launches: create a free account and confirm your email. Every figure comes from SEC filings.
Similar-size RIAs in Illinois
All of Illinois →| Firm | Regulatory AUM | Clients |
|---|---|---|
| Chicago Partners Investment Group LLCChicago | $7.5B | 2,741 |
| Lasalle St. Investment Advisors, L.L.C.Elmhurst | $5.7B | 13,711 |
| Crescent Grove AdvisorsLake Forest | $5.5B | 325 |
| David Vaughan Investments, LLCPeoria | $5.3B | 1,164 |
| Chicago Capital, LLCChicago | $4.8B | 818 |
| Brownson, Rehmus & Foxworth, Inc.Chicago | $4.8B | 263 |
Background
Questions
How much does Calamos Wealth Management LLC manage?
Calamos Wealth Management LLC reports $5.5B in regulatory assets under management across 4,308 accounts, 89% of it on a discretionary basis, on its Form ADV filed July 23, 2026.
How many clients does Calamos Wealth Management LLC have?
It reports 4,072 individual clients: 3,141 high-net-worth individuals and 931 other individuals. Individuals account for about 88% of its regulatory assets.
Where is Calamos Wealth Management LLC headquartered?
Its main office is in Naperville, Illinois. It reports 7 offices in total and 51 employees, 39 of whom perform investment advisory functions.
How does Calamos Wealth Management LLC charge clients?
On Form ADV it lists these forms of compensation: a percentage of assets under management; fixed fees. Fees and minimums are set out in its Form ADV Part 2A brochure, available on the SEC’s adviser search.
What custodian does Calamos Wealth Management LLC use?
It reports Fidelity as the custodian for its clients’ separately managed accounts. On Schedule D of its Form ADV filed July 23, 2026, it reports these amounts held: Fidelity ($5.3B). Form ADV lists only custodians holding 10% or more of separately managed account assets.
Is Calamos Wealth Management LLC a hybrid RIA with a broker-dealer?
Calamos Wealth Management LLC is a hybrid RIA: 21 of its employees are also registered representatives of a broker-dealer. It names an affiliated broker-dealer: Calamos Financial Services LLC. Those representatives can also earn commissions on brokerage business through the broker-dealer, where different rules apply than for advisory accounts.
Is Calamos Wealth Management LLC a fiduciary?
As an SEC-registered investment adviser, Calamos Wealth Management LLC owes its advisory clients a fiduciary duty under the Investment Advisers Act of 1940, which includes duties of care and loyalty. 21 of its employees are also registered representatives of a broker-dealer, where different rules apply to brokerage recommendations.
Where these numbers come from
Every figure is Calamos Wealth Management LLC’s own answer on its latest Form ADV, from the SEC’s registered-adviser list as of October 1, 2026: regulatory assets and accounts (Item 5.F), clients by type (5.D), employees (5.A and 5.B), compensation (5.E) and services (5.G). Custodians come from Schedule D 5.K(3) of its latest filing (2026-07-23), which lists those holding 10% or more of separately managed account assets and the amount at each. “Hybrid” means some employees are also registered representatives of a broker-dealer (Item 5.B(2)); affiliated broker-dealers are the related persons it lists in Item 7.A and Schedule D. Firm type comes from its own answers: broker-dealer firms are registered broker-dealers themselves (Item 6.A); private fund advisers manage mostly private funds (Item 7.B, 5.D); wealth managers manage at least half their assets for individuals (5.D). Its national rank compares it with every US-based independent wealth management RIA, the same field as The Largest RIAs. Figures are as of the firm’s last annual update, so they can lag recent deals and market moves. Regulatory AUM counts assets the firm continuously supervises and can differ from what a firm markets.
Not an endorsement or a recommendation. Before hiring any adviser, read its Form ADV Part 2A brochure and check its record on the SEC’s adviser search. How to check a financial advisor →