Diana D. Cooper
Professional summary
Being a previously registered professional could mean that this person is no longer operating under the supervision of the SEC or FINRA.
That means that the Securities and Exchange Commission may not be able to oversee the services that this specific professional is providing.
Diana Doeller Cooper, who also goes by Diane Doeller Cooper, Deedee Cooper, was a registered financial professional .
Diana is a previously registered financial professional and started their career in finance in 1993. Diana had worked at 6 firms and has passed the Series 65, Series 63, SIE, Series 7 and Series 24 exams.
Aliases
Other business activities
CRS (Client Relationship Summary)
The CRS(Customer Relationship Summary) document is not provided.
Certified licenses
Experience
January 2, 2024 - July 10, 2026
SUMMIT FINANCIAL, LLC
September 22, 2016 - December 20, 2023
SYMPHONIC FINANCIAL ADVISORS LLC
September 22, 2016 - December 20, 2023
SYMPHONIC SECURITIES LLC
June 11, 2012 - January 28, 2015
MORGAN STANLEY
June 11, 2012 - January 28, 2015
MORGAN STANLEY
February 21, 2006 - June 11, 2012
CITIGROUP GLOBAL MARKETS INC.
February 21, 2006 - June 11, 2012
CITIGROUP GLOBAL MARKETS INC.
September 6, 1995 - February 21, 2006
LEGG MASON WOOD WALKER, INCORPORATED
July 28, 1993 - February 21, 2006
LEGG MASON WOOD WALKER, INCORPORATED
Primary Firm SEC Registration

SUMMIT FINANCIAL, LLC
CRD#: 299322 / SEC#: 801-114377
State Registrations and Notice Filings
Listed states reflect where the advisor is authorized to serve clients under state regulations.
Visual representation of state registrations
Exams
Current Firm

SUMMIT FINANCIAL, LLC
CRD#: 299322 / SEC#: 801-114377
Contact information
SEC notice filing (53 States and Territories)
Regulatory assets under management
| Total Number of Accounts | 36,236 |
| AUM (Assets Under Management) | $ 22,470,472,144 |
Accountant surprise examination report
| Filing Date | Form ADV-E Cover | Form ADV-E Report |
|---|---|---|
| 10/08/2025 | ||
| 10/25/2024 | ||
| 12/28/2023 |
Red Flags
Disclosures can be potential red flags, including customer disputes, regulatory fines, employer terminations, bankruptcies, judgments, liens, or certain criminal activities.
Check for any disclosures as part of your thorough research when choosing an advisor.