Tanner Drew Isaacson
Professional Summary
Tanner Drew Isaacson is a registered financial advisor currently at CALAMOS FINANCIAL SERVICES LLC located in Naperville, Illinois. Tanner is registered as a RR (Registered Representative) and started their career in finance in 2007. Tanner has worked at 4 firms and has passed the Series 63, SIE, Series 7TO and Series 7 exams.
At a Glance
Fiduciary Standard
Fee Structure
Account Minimum
Active Clients
Fiduciary Standard
Fee Structure
Account Minimum
Active Clients
Other Aliases
There are no additional aliases reported.
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Contact Information
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Disclosures on record.
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Years of Experience
19 years registered in the securities industry
Current & Past Employments
Current
Past
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Current Firm
CALAMOS FINANCIAL SERVICES LLC | CALAMOS FINANCIAL SERVICES, INC.
Contact Information
Main Address
2020 Calamos Court, Naperville, IL 60563-2787Mailing Address
2020 Calamos Court, Naperville, IL 60563-2787Phone Number
(630) 245-7200Established
Delaware since 09/15/2004Firm Type
Limited Liability CompanyFiscal Year End
DecemberFirm Size
MediumFINRA licenses (53 States and Territories)
Registered to provide investment advisory services in 0 US states and territories.
Documents
Direct owners and executive officers
| Name | Position | CRD# |
|---|---|---|
| CALAMOS INVESTMENTS LLC | SOLE MEMBER/MANAGER | — |
| KOUDOUNIS, JOHN SPIRO | PRESIDENT AND CHIEF EXECUTIVE OFFICER | 1878118 |
| DUFRESNE, DANIEL LEO | EVP, CHIEF OPERATING OFFICER | 2852606 |
| HELMETAG, CHRISTIAN ALLAN | FINANCIAL OPERATION PRINCIPAL | 5282700 |
| HELMETAG, CHRISTIAN ALLAN | PRINCIPAL OPERATIONS OFFICER | 5282700 |
| KILEY, THOMAS PATRICK | SVP CHIEF DISTRIBUTION OFFICER | 2869770 |
| KILEY, THOMAS PATRICK | PRINCIPAL EXECUTIVE OFFICER | 2869770 |
| OJALA, ERIK DONALD | SVP, CHIEF COMPLIANCE OFFICER | 4758365 |
| OJALA, ERIK DONALD | GENERAL COUNSEL & SECRETARY | 4758365 |
Disclosures
Regulatory Event
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Other business activities
Information obtained from regulatory filings. Advisors can request corrections through their firm or regulator.
Outside business activity is any business or activity undertaken by an advisor that is outside the scope of their relationship with their firm (e.g., consulting services, real estate, freelance work, teaching, etc.). Investors should stay informed about these activities to ensure no conflicts of interest.
The advisor shows no other business activity.
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State Registrations and Notice Filings
(10/7/2025)
(10/6/2025)
(10/6/2025)
Exams
Financial professionals may take different exams throughout their careers based on the types of services they provide and roles they perform.
SRO Registrations
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CRS (Client Relationship Summary) - BD
Click below to view Tanner Drew Isaacson's CRS (Customer Relationship Summary).
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