BC
Brennan L. Crowley
OPTIVER US LLC
Chicago, IL 60601
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CRD#: 7411134
BC
Professional summary
Brennan Lew Crowley, who also goes by Brennan L Crowley, is a registered financial professional currently at OPTIVER US LLC located in Chicago, Illinois.
Brennan is registered as a RR (Registered Representative) and started their career in finance in 2022. Brennan has worked at 2 firms and has passed the Series 63, Series 57TO, Series 87, Series 86, Series 7TO and SIE exams.
Question & Answer
Are you a "fiduciary"?
No
Aliases
Brennan L Crowley
Other business activities
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.
CRS (Client Relationship Summary) - BD
Click below to view Brennan Lew Crowley's CRS (Customer Relationship Summary).
Certified licenses
Advisors may have various certifications and credentials from different organizations. AdvisorCheck highlights these seven certifications - AIF®, CFP®, ChFC®, CFA, CLU®, CIMA®, CPWA®
NoneExperience
Current
January 3, 2026 - Present
OPTIVER US LLC
Office #1: 130 E. Randolph St. Ste. 800, Chicago, IL 60601BD
CRD#: 128030
Chicago, IL
Past
January 17, 2022 - September 10, 2025
ROBERT W. BAIRD & CO. INCORPORATED
BD
CRD#: 8158
MILWAUKEE, WI
State Registrations and Notice Filings
Listed states reflect where the advisor is authorized to serve clients under state regulations.
Visual representation of state registrations
This advisor is not registered in any state.
Exams
State Security Law Exam
General Industry/Product Exam
RR
Series 57TO
Date: 1/3/2026
Securities Trader ExamGeneral Industry/Product Exam
General Industry/Product Exam
General Industry/Product Exam
RR
Series 7TO
Date: 1/15/2022
General Securities Representative ExaminationGeneral Industry/Product Exam
SRO Registrations
RR
BOX Exchange LLC
SRO Registrations
RR
Cboe BYX Exchange, Inc.
SRO Registrations
RR
Cboe BZX Exchange, Inc.
SRO Registrations
RR
Cboe C2 Exchange, Inc.
SRO Registrations
RR
Cboe EDGA Exchange, Inc.
SRO Registrations
RR
Cboe EDGX Exchange, Inc.
SRO Registrations
RR
Cboe Exchange, Inc.
SRO Registrations
RR
FINRA
SRO Registrations
RR
Investors' Exchange LLC
SRO Registrations
RR
MEMX LLC
SRO Registrations
RR
MIAX Emerald, LLC
SRO Registrations
RR
MIAX PEARL, LLC
SRO Registrations
RR
MIAX Sapphire
SRO Registrations
RR
Miami International Securities Exchange, LLC
SRO Registrations
RR
NYSE American LLC
SRO Registrations
RR
NYSE Arca, Inc.
SRO Registrations
RR
NYSE National, Inc.
SRO Registrations
RR
NYSE Texas, Inc.
SRO Registrations
RR
Nasdaq BX, Inc.
SRO Registrations
RR
Nasdaq GEMX, LLC
SRO Registrations
RR
Nasdaq ISE, LLC
SRO Registrations
RR
Nasdaq MRX, LLC
SRO Registrations
RR
Nasdaq PHLX LLC
SRO Registrations
RR
Nasdaq Stock Market
SRO Registrations
RR
New York Stock Exchange
Current Firm
OU
OPTIVER US LLC
OPTIVER US LLC | OPTIVER US, LLC
CRD#: 128030 / SEC#: , 8-66083
BD
Broker-Dealer Firm Regulated by FINRA (Chicago district office)
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Contact information
Main Address
130 E. Randolph Street Suite 800, Chicago, IL 60601
Mailing Address
130 E. Randolph Street Suite 800, Chicago, IL 60601
Phone number
(312) 821-9500
Established
Illinois since 08/05/2003
Firm type
Limited Liability Company
Fiscal year end
December
Firm Size
Medium
# of Employees
Documents
Direct owners and executive officers
| Name | Position | CRD# |
|---|---|---|
| OPTIVER PARTNERSHIP US LP | PARENT COMPANY | |
| BRINKHUIS, RUTGER HENDRIK | CHIEF EXECUTIVE OFFICER/MANAGING DIRECTOR - US | 6753961 |
| COLEMAN, KEVIN PAUL | CHIEF COMPLIANCE OFFICER | 6254324 |
| DEATON, MICHAEL WILLIAM | CHIEF FINANCIAL OFFICER / FINOP / PRINCIPAL FINANCIAL OFFICER / PRINCIPAL OPERATIONS OFFICER | 2964800 |
| ITKIN, ALEXANDER SAMUEL | CHIEF TECHNOLOGY OFFICER; MANAGER OF OPTIVER PARTNERSHIP US LP | 5967037 |
Disclosures
| Regulatory Event | 10 |
| Civil Event | 1 |
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.
