William J. Dejianne
Professional summary
William Joseph Dejianne, who also goes by Willam Joseph Dejianne, William Joseph Dejianne III, is a registered financial advisor currently at NEEDHAM & COMPANY, LLC located in New York, New York.
William is registered as an IAR (Investment Advisor Representative) and RR (Registered Representative) and started their career in finance in 1993. William has worked at 6 firms and has passed the Series 65, Series 63, SIE, Series 7 and Series 24 exams.
Question & Answer
Aliases
Other business activities
CRS (Client Relationship Summary) - RIA
Click below to view William Joseph Dejianne's CRS (Customer Relationship Summary).
CRS (Client Relationship Summary) - BD
Click below to view William Joseph Dejianne's CRS (Customer Relationship Summary).
Certified licenses
Experience
January 8, 2021 - Present
NEEDHAM & COMPANY, LLC
Office #1: 250 Park Avenue 10th Floor, New York, NY 10177January 7, 2021 - Present
NEEDHAM & COMPANY, LLC
Office #1: 250 Park Avenue 10th Floor, New York, NY 10177March 9, 2011 - August 7, 2020
NUVEEN ASSET MANAGEMENT, LLC
January 3, 2011 - August 7, 2020
NUVEEN SECURITIES, LLC
July 3, 2007 - January 3, 2011
QUASAR DISTRIBUTORS, LLC
December 21, 1999 - June 5, 2007
GLOBAL ALTERNATIVE INVESTMENT SERVICES, INC.
July 8, 1993 - November 29, 1999
OPPENHEIMERFUNDS DISTRIBUTOR, INC.
Primary Firm SEC Registration
NEEDHAM & COMPANY, LLC
CRD#: 16360 / SEC#: 801-62735, 8-33772
State Registrations and Notice Filings
Listed states reflect where the advisor is authorized to serve clients under state regulations.
Visual representation of state registrations
(9/4/2025)
(1/7/2021)
(5/24/2022)
(11/9/2023)
(9/4/2025)
(5/24/2022)
(7/27/2023)
(1/7/2021)
(5/24/2022)
(7/27/2023)
(11/9/2023)
(9/4/2025)
(5/24/2022)
(1/7/2021)
(5/24/2022)
(1/7/2021)
(9/4/2025)
(3/17/2021)
(1/7/2021)
(3/20/2021)
(5/24/2022)
(5/24/2022)
(5/24/2022)
(11/9/2023)
(11/9/2023)
(11/9/2023)
(9/4/2025)
(5/24/2022)
(9/4/2025)
Exams
Cboe BYX Exchange, Inc.
Cboe BZX Exchange, Inc.
FINRA
Investors' Exchange LLC
NYSE Arca, Inc.
Nasdaq Stock Market
Current Firm
NEEDHAM & COMPANY, LLC
CRD#: 16360 / SEC#: 801-62735, 8-33772
Contact information
SEC notice filing (14 States and Territories)
FINRA licenses (53 States and Territories)
Direct owners and executive officers
| Name | Position | CRD# |
|---|---|---|
| NEEDHAM HOLDINGS, LLC | MEMBER | |
| IACOVONE, JACK JAMES | MANAGING DIRECTOR, CEO & HEAD OF INVESTMENT BANKING | 2877398 |
| PRIOR, JOHN JOSEPH JR | MANAGING DIRECTOR, CEO OF THE NEEDHAM GROUP, INC. | 1076802 |
| ABBRUZZESE, JAMES MICHAEL | MANAGING DIRECTOR, CHIEF ADMINISTRATIVE OFFICER & ACTING HEAD OF SALES | 2960715 |
| FIORDALISO, ROBERT JOSEPH | MANAGING DIRECTOR, CHIEF FINANCIAL OFFICER | 2518397 |
| LAUFER, DAVID MICHAEL | MANAGING DIRECTOR, HEAD OF TRADING & SALES TRADING | 4336854 |
| MALIK, ANDREW JOSEPH | MANAGING DIRECTOR, CHAIRMAN | 317860 |
| MALLOY, JOHN PATRICK | MANAGING DIRECTOR, CO-DIRECTOR OF RESEARCH | 5322002 |
| MALONEY, THOMAS ANTHONY | MANAGING DIRECTOR, CO-DIRECTOR OF RESEARCH | 2386331 |
| MERLINO, SALVATORE ANTHONY | MANAGING DIRECTOR, CHIEF COMPLIANCE OFFICER | 4397078 |
Disclosures
| Regulatory Event | 27 |
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.
