Gregory M. Ellingson
Professional summary
Gregory M Ellingson is a registered financial professional currently at HERBERT J. SIMS & CO, INC. located in Rockville, Maryland.
Gregory is registered as a RR (Registered Representative) and started their career in finance in 2015. Gregory has worked at 2 firms and has passed the Series 63, Series 52TO, SIE, Series 50 and Series 52 exams.
Question & Answer
Aliases
Other business activities
CRS (Client Relationship Summary) - BD
Click below to view Gregory M Ellingson's CRS (Customer Relationship Summary).
Certified licenses
Experience
May 19, 2026 - Present
HERBERT J. SIMS & CO, INC.
Office #1: 11140 Rockville Pike Suite 630, Rockville, MD 20852October 22, 2015 - July 28, 2017
STIFEL, NICOLAUS & COMPANY, INCORPORATED
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
Series 52TO
Date: 5/19/2026
Municipal Securities Representative ExaminationFINRA
Current Firm
HERBERT J. SIMS & CO, INC.
CRD#: 3420 / SEC#: , 8-3315
Contact information
FINRA licenses (53 States and Territories)
Direct owners and executive officers
| Name | Position | CRD# |
|---|---|---|
| TEKSYS CORPORATION | OWNER | |
| DIAMOND, JASON HOWARD | CHIEF FINANCIAL OFFICER/MANAGING PRINCIPAL | 2320884 |
| RULNICK, AARON M | DIRECTOR | 3149315 |
| HEBERT, VALERIE | CHIEF COMPLIANCE OFFICER | 4007252 |
| MULLANE, DANIEL JOSEPH | MANAGING PRINCIPAL | 1246435 |
| SANDS, R JEFFREY | DIRECTOR | 4285040 |
| SIMS, WILLIAM BARNETT | PRESIDENT/CEO | 425019 |
Disclosures
| Regulatory Event | 8 |
| Arbitration | 2 |
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.