Catherine M. Ernsky

Some features on this profile are disabled

CRD#: 4370228

Professional summary

Being a previously registered professional could mean that this person is no longer operating under the supervision of the SEC or FINRA.

That means that the Securities and Exchange Commission may not be able to oversee the services that this specific professional is providing.

Catherine May Ernsky, who also goes by Catherine May Gwilliam, was a registered financial professional .

Catherine is a previously registered financial professional and started their career in finance in 2001. Catherine had worked at 6 firms and has passed the Series 63, SIE and Series 6 exams.

Question & Answer

Are you a "fiduciary"?

Aliases

Catherine May Gwilliam

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.

Blog Corner

CRS (Client Relationship Summary)

The CRS(Customer Relationship Summary) document is not provided.

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

Past

May 10, 2016 - December 15, 2016

MML INVESTORS SERVICES, LLC

CRD#: 10409

NORWALK, CT

Past

October 30, 2012 - December 31, 2015

MML INVESTORS SERVICES, LLC

CRD#: 10409

NORWALK, CT

Past

August 10, 2010 - October 3, 2012

PARK AVENUE SECURITIES LLC

CRD#: 46173

NEW YORK, NY

Past

June 28, 2007 - August 4, 2010

PRINCIPAL SECURITIES, INC.

CRD#: 1137

NORWALK, CT

Past

July 14, 2006 - April 30, 2007

ASHTON STEWART & CO., INC.

CRD#: 112386

MIAMI, FL

Past

December 20, 2003 - July 24, 2006

PRUDENTIAL ANNUITIES DISTRIBUTORS, INC

CRD#: 21570

SHELTON, CT

Past

August 21, 2002 - December 17, 2003

JOHN HANCOCK DISTRIBUTORS LLC

CRD#: 5249

BOSTON, MA

Past

April 6, 2001 - June 12, 2002

PRUDENTIAL ANNUITIES DISTRIBUTORS, INC

CRD#: 21570

SHELTON, CT

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".

MML INVESTORS SERVICES, LLC

CRD#: 10409 / SEC#: 801-44264, 8-27250

RIA

Registered Investment Advisory firm - SEC (7/13/1993 Approved)

Broker-Dealer Firm Regulated by FINRA (Boston district office)

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.

Don't see your state listed? The advisor may still be able to work with you under the federal De Minimis Rule, which allows up to five investment advisory clients in a state without registration. Some states, like TX, LA, NE, and NH, may still require registration or notice filing. Contact the advisor or their firm to confirm their investment advisory availability in your state.

Exams

State Security Law Exam

Series 63

Date: 3/9/2004

Uniform Securities Agent State Law Examination

General Industry/Product Exam

SIE

Date: 12/15/2016

Securities Industry Essentials Examination

General Industry/Product Exam

Series 6

Date: 4/5/2001

Investment Company Products/Variable Contracts Representative Examination

Current Firm

MML INVESTORS SERVICES, LLC

CRD#: 10409 / SEC#: 801-44264, 8-27250

RIA

Registered Investment Advisory firm - SEC (7/13/1993 Approved)

Broker-Dealer Firm Regulated by FINRA (Boston district office)

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

1295 State Street, Springfield, MA 01111-0001

Mailing Address

1295 State Street, Springfield, MA 01111-0001

Phone number

(413) 737-8400

Established

Massachusetts since 01/01/2011

Firm type

Limited Liability Company

Fiscal year end

December

Firm Size

Large

# of Employees

7,056

SEC notice filing (50 States and Territories)

FINRA licenses (53 States and Territories)

Documents

Customer Relationship Summary (CRS / SEC)

Customer Relationship Summary (CRS / FINRA)

Latest Form ADV

Part 2 Brochures

PART 2A OF FORM ADV (THIRD PARTY PROGRAMS) (11/13/2025)

FORM ADV PART 2A FOR MML PLAN SOLUTIONS (10/6/2025)

PART 2A APPENDIX 1 OF FORM ADV - ADVISOR SELECT (10/6/2025)

PART 2A BROCHURE MASSMUTUAL PLAN FIDUCIARY SERVICES PROGRAM (10/6/2025)

PORTFOLIO SOLUTIONS PROGRAMS WRAP FEE BROCHURE (10/6/2025)

PART 2 A APPENDIX 1 OF FORM ADV - SMA SELECT (10/6/2025)

PART 2A APPENDIX 1 OF FORM ADV - STRATEGIST SELECT AND STRATEGIST SELECT MF ONLY (10/6/2025)

PART 2A APPENDIX 1 OF FORM ADV - UMA SELECT PREMIER AND UMA SELECT PREMIER MF ONLY (10/6/2025)

VALIANCE INVESTMENT PROGRAMS (10/6/2025)

WMS ORION DISCLOSURE BROCHURE (10/6/2025)

WMS ADVISORY ANNUITIES DISCLOSURE BROCHURE (7/1/2025)

PART 2A OF FORM ADV (BAYSTATE AND NEWSQUARE) (7/1/2025)

FINANCIAL PLANNING SERVICES ADV BROCHURE (3/28/2025)

Direct owners and executive officers

Name	Position	CRD#
MASSMUTUAL HOLDING LLC	MEMBER
BAUER, THOMAS K	CHIEF TECHNOLOGY OFFICER	4759472
BOWMAN, VAUGHN CHARLES	CHIEF EXECUTIVE OFFICER, PRESIDENT AND CHAIRMAN OF THE BOARD	4725044
CRADDOCK, GEOFFREY	DIRECTOR	1444771
DUCH III, EDWARD KARL	CHIEF LEGAL OFFICER, SECRETARY AND VICE PRESIDENT	4808341
LAPIANA, PAUL ANTHONY	DIRECTOR	2237245
MALLEE, JOSEPH PATRICK III	DIRECTOR	4231618
MINK, DAVID MYERS	VICE PRESIDENT AND CHIEF OPERATIONS OFFICER	2606831
RANDALL, GEORGE ASHLEY IV	FIELD RISK OFFICER	4881503
REILLY, JENNIFER RHODES	DIRECTOR	3243154
RISPOLI, FRANK JOSEPH	CHIEF FINANCIAL OFFICER AND TREASURER	4364402
ROGERS REID, COURTNEY MCKENZIE	CHIEF COMPLIANCE OFFICER	5374512
VACCARO, JOHN ARTHUR	CHAIRMAN EMERITUS	2264004
WILKINSON, MARY BEA	VICE PRESIDENT	2159909

Regulatory assets under management

Total Number of Accounts	392,820
AUM (Assets Under Management)	$ 90,021,969,258

Disclosures

Regulatory Event	27
Arbitration	1
Bond	2

Accountant surprise examination report

Filing Date	Form ADV-E Cover	Form ADV-E Report
11/24/2025	Cover Page	Report
10/28/2024	Cover Page	Report
11/28/2023	Cover Page	Report
12/19/2022	Cover Page	Report

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.

Similar Advisors

Stephen Zahka

EDWARD JONES

IAR

Marlborough, MA

Frank Moore

UBS FINANCIAL SERVICES INC.

IAR

Greenwich, CT

Marshall Rosen

OSAIC WEALTH, INC.

IAR

Fort Lauderdale, FL

We're Here To Help

Advisor Monitoring

Firm Stability Insights

Catherine M. Ernsky

Professional summary

Question & Answer

Aliases

Other business activities

Blog Corner

CRS (Client Relationship Summary)

Certified licenses

Experience

MML INVESTORS SERVICES, LLC

PARK AVENUE SECURITIES LLC

PRINCIPAL SECURITIES, INC.

ASHTON STEWART & CO., INC.

PRUDENTIAL ANNUITIES DISTRIBUTORS, INC

JOHN HANCOCK DISTRIBUTORS LLC

PRUDENTIAL ANNUITIES DISTRIBUTORS, INC

Primary Firm SEC Registration

MML INVESTORS SERVICES, LLC

State Registrations and Notice Filings

Exams

Series 63

Date: 3/9/2004

SIE

Date: 12/15/2016

Series 6

Date: 4/5/2001

Current Firm

MML INVESTORS SERVICES, LLC

Contact information

SEC notice filing (50 States and Territories)

FINRA licenses (53 States and Territories)

Documents

Part 2 Brochures

Direct owners and executive officers

Regulatory assets under management

Disclosures

Accountant surprise examination report

Red Flags

Company Information

MML INVESTORS SERVICES, LLC

TRUST BUT VERIFY

Similar Advisors