AdvisorCheck - Find and Connect with Top Financial Advisors on Your Terms
Why Advisor Check
WM

William J. Mellas

CETERA INVESTMENT ADVISERS LLC
LAKELAND, FL 33813
Some features on this profile are disabled
CRD#: 4469954
WM

Professional summary


William Joseph Mellas is a registered financial advisor currently at CETERA INVESTMENT ADVISERS LLC located in Lakeland, Florida and CETERA INVESTMENT SERVICES LLC located in New Port Richey, Florida.

William is registered as an IAR (Investment Advisor Representative) and RR (Registered Representative) and started their career in finance in 2001. William has worked at 5 firms and has passed the Series 65, Series 63, SIE, Series 7, Series 6 and Series 24 exams.

top-8-questions

Question & Answer


Are you a "fiduciary"?
Yes

Aliases


None

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.
1.)INVESTMENT MANAGEMENT CONSULTANTS ASSOCIATION, 5619 DTC PARKWAY SUITE 500 GREENWOOD VILLAGE, CO 80111; NON-PROFIT OGANIZATION FOR INVESTMENT MANAGEMENT CONSULTANTS; MEMBER; START DATE: 01/10/2015; 10 HOURS PER MONTH DEVOTED TO BUSINESS, 2 HOURS DEVOTED TO BUSINESS DURING SECURITIES TRADING HOURS."

Blog Corner


CRS (Client Relationship Summary) - RIA


Click below to view William Joseph Mellas's CRS (Customer Relationship Summary).
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®
None

Experience


Current

June 20, 2017 - Present

CETERA INVESTMENT ADVISERS LLC

Office #1: 4535 S Florida Ave, Lakeland, FL 33813
RIA
CRD#: 105644
LAKELAND, FL
Current

June 7, 2017 - Present

CETERA INVESTMENT SERVICES LLC

Office #1: 6335 Us Hwy 19, New Port Richey, FL 34652Office #2: 4535 S Florida Ave, Lakeland, FL 33813
BD
CRD#: 15340
New Port Richey, FL
Past

August 22, 2016 - June 6, 2017

AEGIS CAPITAL CORP.

RIA
CRD#: 15007
MULBERRY, FL
Past

March 23, 2010 - June 6, 2017

AEGIS CAPITAL CORP.

BD
CRD#: 15007
BRONXVILLE, NY
Past

November 24, 2008 - March 30, 2010

GUNNALLEN FINANCIAL, INC

BD
CRD#: 17609
BRONXVILLE, NY
Past

November 15, 2001 - December 31, 2008

MCLAUGHLIN, PIVEN, VOGEL SECURITIES, INC.

BD
CRD#: 7404
NEW YORK, NY

Primary Firm SEC Registration


This SEC-registered firm can serve clients nationwide. Some states may require the firm to submit a notice filing if the firm has more than 5 clients or a physical office there. You can view these state-level filings under the section titled "State Registrations and Notice Filings".
CI
CETERA INVESTMENT ADVISERS LLC
CETERA ADVISOR NETWORKS | TERRA FINANCIAL PLANNING GROUP LTD | GENWORTH FINANCIAL ADVISERS CORPORATION | FIRST ALLIED ADVISORY SERVICES | CETERA INVESTMENT ADVISERS LLC | CETERA ADVISORS

CRD#: 105644 / SEC#: 801-20406

RIA
Registered Investment Advisory firm - (1/13/1984 Approved)

State Registrations and Notice Filings


Listed states reflect where the advisor is authorized to serve clients under state regulations.

IAR
means the advisor is registered as an Investment Advisor Representative in this state and is authorized to provide investment advice to clients there.
RR
indicates the advisor is registered as a Registered Representative in this state, allowing them to offer securities such as stocks, bonds, and mutual funds through a broker-dealer.

Visual representation of state registrations

RR
Alabama
(6/7/2017)
RR
Connecticut
(10/22/2018)
RR
Florida
(6/7/2017)
IAR
Florida
(6/20/2017)
RR
Georgia
(12/7/2020)
RR
Maryland
(6/7/2017)
RR
Michigan
(6/7/2017)
RR
Mississippi
(3/8/2018)
RR
New Jersey
(8/16/2017)
RR
New York
(6/7/2017)
RR
Ohio
(6/7/2017)
RR
Tennessee
(12/10/2024)
RR
Texas
(11/1/2022)
IAR
Texas
(11/3/2022)
RR
Utah
(6/7/2017)
RR
Washington
(1/25/2021)

Exams


State Security Law Exam
IAR
Series 65
Date: 8/12/2016
Uniform Investment Adviser Law Examination
State Security Law Exam
General Industry/Product Exam
General Industry/Product Exam
General Industry/Product Exam
Principal/Supervisory Exam
SRO Registrations
RR
FINRA

Current Firm


CI
CETERA INVESTMENT ADVISERS LLC
CETERA ADVISOR NETWORKS | TERRA FINANCIAL PLANNING GROUP LTD | GENWORTH FINANCIAL ADVISERS CORPORATION | FIRST ALLIED ADVISORY SERVICES | CETERA INVESTMENT ADVISERS LLC | CETERA ADVISORS

CRD#: 105644 / SEC#: 801-20406

RIA
Registered Investment Advisory firm - (1/13/1984 Approved)
Upgrade to AdvisorCheck Premium
Get A Biweekly Pulse, AutomaticallyReceive biweekly alerts automatically. Stay informed and proactive.
Catch Firm-Level Red Flags SoonerCatch leadership changes and disclosures early, before issues escalate.
See Trends. Not Just SnapshotsMonitor firm stability metrics like AUM and advisor ratios over time.

Contact information


Main Address
1450 American Lane 6th Floor, Suite 650, Schaumburg, IL 60173-2096
Mailing Address
Phone number
(310) 257-7880
Established
Firm type
Fiscal year end
# of Employees
7,705

SEC notice filing (53 States and Territories)


Blank US states mapAlaskaHawaiiAlabamaArkansasArizonaCaliforniaColoradoConnecticutDelawareFloridaGeorgiaIowaIdahoIllinoisIndianaKansasKentuckyLouisianaMassachusettsMarylandMaineMichiganMinnesotaMissouriMississippiMontanaNorth CarolinaNorth DakotaNebraskaNew HampshireNew JerseyNew MexicoNevadaNew YorkOhioOklahomaOregonPennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVirginiaVermontWisconsinWest VirginiaWyoming

Documents


Customer Relationship Summary (CRS / SEC)Latest Form ADV

Regulatory assets under management


Total Number of Accounts584,487
AUM (Assets Under Management)$ 163,792,814,520

Accountant surprise examination report


Filing DateForm ADV-E CoverForm ADV-E Report
10/27/2025
Cover Page
12/13/2024
09/26/2023
11/18/2022

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


CETERA INVESTMENT ADVISERS LLC

CRD#: 105644Lakeland, FL 33813

TRUST BUT VERIFY

Monitor William Mellas

Get automatic monthly alerts on:
Job or Firm Moves
Licensing Changes
Client Complaints
New Red Flags
Contact Information Updates

Similar Advisors


John Ricci Hoover
John HooverAdvisorCheck Check Mark
MAIA WEALTH
IAR
Dallas, TX
Kerry John Prazak
Kerry PrazakAdvisorCheck Check Mark
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC
IAR
SOUTHLAKE, TX
footer-logo

AdvisorCheck does not offer investment advice and should not replace discussions with professional accounting, tax, legal or financial advisors.© 2025 AdvisorCheck, an AIMR Analytics company. All rights reserved.