Diana L. Ruhtenberg
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 Libuano Ruhtenberg, who also goes by Diana Libunao Ruhtenberg, Diana Libunao Ruthenberg, was a registered financial professional .
Diana is a previously registered financial professional and started their career in finance in 1989. Diana had worked at 7 firms and has passed the Series 65, Series 63, SIE, Series 3 and Series 7 exams.
Question & Answer
Aliases
Other business activities
CRS (Client Relationship Summary)
The CRS(Customer Relationship Summary) document is not provided.
Certified licenses
Experience
March 16, 2009 - November 26, 2023
OPPENHEIMER & CO. INC.
March 16, 2009 - November 26, 2023
OPPENHEIMER & CO. INC.
November 1, 2007 - March 16, 2009
STANFORD GROUP COMPANY
November 1, 2007 - March 16, 2009
STANFORD GROUP COMPANY
December 2, 2005 - November 1, 2007
BNY INVESTMENT CENTER INC.
December 2, 2005 - November 1, 2007
BNY INVESTMENT CENTER INC.
January 21, 2004 - December 13, 2005
PERSHING LLC
December 15, 2003 - December 13, 2005
PERSHING LLC
November 24, 1998 - December 13, 2005
LOCKWOOD FINANCIAL SERVICES, INC.
November 23, 1998 - December 13, 2005
LOCKWOOD FINANCIAL SERVICES, INC.
July 31, 1993 - November 19, 1998
CITIGROUP GLOBAL MARKETS INC.
January 24, 1989 - July 31, 1993
LEHMAN BROTHERS INC.
Primary Firm SEC Registration

OPPENHEIMER & CO. INC.
CRD#: 249 / SEC#: 801-887, 8-4077
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

OPPENHEIMER & CO. INC.
CRD#: 249 / SEC#: 801-887, 8-4077
Contact information
SEC notice filing (53 States and Territories)
FINRA licenses (53 States and Territories)
Direct owners and executive officers
| Name | Position | CRD# |
|---|---|---|
| VINER FINANCE INC. | PARENT CO. | |
| CASSIDY, THOMAS EDWARD | MANAGING DIRECTOR | 4502955 |
| GIORDANO, PETER JOHN | MANAGING DIRECTOR-CHIEF ADMINISTRATIVE OFFICER | 2921308 |
| HARRINGTON, EDWARD PATRICK | EXECUTIVE VICE PRESIDENT - PRIVATE CLIENT SERVICES | 2566682 |
| LOWENTHAL, ALBERT GRINSFELDER | EXECUTIVE CHAIRMAN-DIRECTOR-OWNS 100% OF PHASE II FIN'L | 313519 |
| LOWENTHAL, ROBERT STEVEN | CEO-PRESIDENT-DIRECTOR | 1639913 |
| MCNAMARA, DENNIS PATRICK | E.V.P./CLO/SECRETARY | 2938486 |
| MOLOKIE JR, LEON E | EXECUTIVE VICE PRESIDENT - CHIEF OPERATIONS OFFICER | 1743402 |
| VALENTINO, DOMINIC THOMAS | CHIEF COMPLIANCE OFFICER | 6940515 |
| WATKINS, BRAD MICHAEL | DIRECTOR-EXECUTIVE VICE PRESIDENT-CFO | 6319251 |
Regulatory assets under management
| Total Number of Accounts | 37,605 |
| AUM (Assets Under Management) | $ 32,418,994,154 |
Disclosures
| Regulatory Event | 102 |
| Civil Event | 1 |
| Arbitration | 180 |
| Bond | 2 |
Accountant surprise examination report
| Filing Date | Form ADV-E Cover | Form ADV-E Report |
|---|---|---|
| 01/24/2025 | ||
| 10/25/2023 | ||
| 02/24/2023 |
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.