Jonathan G. Cook
Professional summary
Jonathan Gorman Cook SR, who also goes by J Gorman Cook, Jonathan Gorman Cook Jr, Jonathan Gorman Cook, is a registered financial advisor currently at WILLIAM BLAIR located in Chicago, Illinois.
Jonathan is registered as an IAR (Investment Advisor Representative) and RR (Registered Representative) and started their career in finance in 1982. Jonathan has worked at 5 firms and has passed the Series 65, Series 63, SIE, Series 3, Series 15, Series 5 and Series 7 exams.
Question & Answer
Aliases
Other business activities
CRS (Client Relationship Summary) - RIA
Click below to view Jonathan Gorman Cook SR's CRS (Customer Relationship Summary).
CRS (Client Relationship Summary) - BD
Click below to view Jonathan Gorman Cook SR's CRS (Customer Relationship Summary).
Certified licenses
Experience
September 1, 2000 - Present
WILLIAM BLAIR
Office #1: The William Blair Building 150 North Riverside, Chicago, IL 60606April 10, 1995 - Present
WILLIAM BLAIR
Office #1: The William Blair Building 150 North Riverside, Chicago, IL 60606December 19, 1992 - May 4, 1995
SALOMON BROTHERS MUNICIPALS INC
July 10, 1992 - May 4, 1995
SALOMON BROTHERS INC.
March 20, 1990 - November 15, 1991
CONTINENTAL GLOBAL FINANCIAL CORPORATION
February 1, 1988 - January 1, 1990
DREXEL BURNHAM LAMBERT INCORPORATED
March 21, 1982 - February 26, 1985
SALOMON BROTHERS INC.
Primary Firm SEC Registration

WILLIAM BLAIR
CRD#: 1252 / SEC#: 801-688, 8-2698
State Registrations and Notice Filings
Listed states reflect where the advisor is authorized to serve clients under state regulations.
Visual representation of state registrations
(1/6/1997)
(6/2/1999)
(5/14/2024)
(4/28/1995)
(6/26/2020)
(4/10/1995)
(9/1/2000)
(4/26/1995)
(11/30/2017)
(4/8/2009)
(11/27/2023)
(4/10/1995)
(12/1/2016)
(5/30/1996)
(1/29/2024)
(1/7/2021)
(3/20/2025)
(9/19/1997)
(5/5/1995)
Exams
Series 15
Date: 11/19/1982
Foreign Currency Options ExaminationSeries 5
Date: 3/25/1982
Interest Rate Options ExaminationFINRA
NYSE American LLC
Nasdaq Stock Market
New York Stock Exchange
Current Firm

WILLIAM BLAIR
CRD#: 1252 / SEC#: 801-688, 8-2698
Contact information
SEC notice filing (53 States and Territories)
FINRA licenses (53 States and Territories)
Documents
Direct owners and executive officers
| Name | Position | CRD# |
|---|---|---|
| WBC HOLDINGS, L.P. | HOLDING COMPANY | |
| CITARDI, CISSIE | EXECUTIVE COMMITTEE, GENERAL COUNSEL | 6642613 |
| DEVORE, RYAN JACOB | EXECUTIVE COMMITTEE | 3049671 |
| GLEDHILL, BRENT WALKER | PRESIDENT, CEO | 2921069 |
| KENDALL, ROBERT DANIEL | EXECUTIVE COMMITTEE | 2765873 |
| MCLAUGHLIN, SCOTT THOMAS | EXECUTIVE COMMITTEE | 2481285 |
| RASAVONGXAY, WILLSON B | CHIEF COMPLIANCE OFFICER | 6593731 |
| SATTERFIELD, BETH A | EXECUTIVE COMMITTEE | 6011858 |
| TOLE, STEVEN ROBERT | EXECUTIVE COMMITTEE | 5885283 |
| TRIMBERGER, MICHAEL WILLIAM | EXECUTIVE COMMITTEE, CFO | 5329834 |
| ZIMMER, MATTHEW MONTGOMERY | EXECUTIVE COMMITTEE | 4157826 |
Regulatory assets under management
| Total Number of Accounts | 37,973 |
| AUM (Assets Under Management) | $ 58,329,726,421 |
Disclosures
| Regulatory Event | 29 |
| Arbitration | 2 |
| Bond | 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.
Company Information
WILLIAM BLAIR
Managing Director, Wealth ManagerCRD#: 1252Chicago, IL 60606TRUST BUT VERIFY
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