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David Thomas Mullen

COLLIERS SECURITIES
Fort Myers, FL
·CRD# 1273590·38 years experience

Professional Summary

David Thomas Mullen is a registered financial advisor currently at COLLIERS SECURITIES LLC located in Fort Myers, Florida. David is registered as a RR (Registered Representative) and started their career in finance in 1988. David has worked at 4 firms and has passed the Series 66, Series 63, Series 52TO, SIE, Series 50, Series 7, Series 54, Series 24 and Series 53 exams.

At a Glance

Best-Interest Standard

Fiduciary Standard

Fee Structure

Account Minimum

Active Clients

Fiduciary Standard

Fee Structure

Account Minimum

Active Clients

Other Aliases

There are no additional aliases reported.

Blog Corner

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Videos & Posts

This advisor has not added any videos or posts yet.

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Contact Information

Email

xxxxx@xxxx.xxx

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Disclosures are events reported to regulators, such as customer disputes, regulatory actions, employment separations, or financial events. Some are resolved, denied, or contested — a disclosure is not a verdict. We recommend asking an advisor directly about any disclosure on their record.

Disclosures on record.

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.

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Years of Experience

38 years in the financial services industry

Current & Past Employments

COLLIERS SECURITIES LLC·CRD# 7477
RIA
BD
1. Fort Myers, FL2. 90 South Seventh Street, Suite 3300, Minneapolis, MN 55402
November 30, 2012 - Present
COLLIERS SECURITIES LLC·CRD# 7477
RIA
Minneapolis, MN
June 24, 2014 - January 2, 2024
PIPER SANDLER & CO.·CRD# 665
BD
Minneapolis, MN
September 22, 1998 - March 22, 2012
U.S. BANCORP INVESTMENTS, INC.·CRD# 17868
BD
Saint Paul, MN
October 10, 1995 - September 15, 1998
SECURITIES RESOLUTION CORPORATION·CRD# 7119
BD
Minneapolis, MN
January 19, 1988 - October 10, 1995

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Current Firm

COLLIERS SECURITIES LLC
COLLIERS SECURITIES LLC

COLLIERS SECURITIES LLC | SUMMIT INVESTMENT CORPORATION | NODAKBONDS | DOUGHERTY VALUE ADVISORS | DOUGHERTY SUMMIT SECURITIES LLC | DOUGHERTY & COMPANY LLC

CRD#: 7477 / SEC#: 801-80233, 8-21937
RIA
Registered Investment Advisory firm - SEC (9/25/2014 Approved)
Arizona
Registered Investment Advisory firm - SEC (10/3/2014 Terminated)
California
Registered Investment Advisory firm - SEC (10/20/2014 Terminated)
Florida
Registered Investment Advisory firm - SEC (10/3/2014 Terminated)
Iowa
Registered Investment Advisory firm - SEC (10/6/2014 Terminated)
Minnesota
Registered Investment Advisory firm - SEC (10/13/2014 Terminated)
North Dakota
Registered Investment Advisory firm - SEC (10/3/2014 Terminated)
South Dakota
Registered Investment Advisory firm - SEC (10/3/2014 Terminated)
Texas
Registered Investment Advisory firm - SEC (10/3/2014 Terminated)
Wisconsin
Registered Investment Advisory firm - SEC (10/6/2014 Terminated)
BD
Broker-Dealer Firm Regulated by FINRA (Kansas City district office)
Why is a state registration marked "Terminated"? When a firm registers with the SEC (usually after managing $100M+ AUM), it often withdraws separate state firm registrations unless required by that state. The firm can still serve clients there through its individually registered Investment Advisor Representatives (IARs).

Contact Information

Main Address

90 South Seventh Street Suite 4300, Minneapolis, MN 55402-4108

Mailing Address

90 South Seventh Street Suite 3300, Minneapolis, MN 55402-4108

Phone Number

(612) 376-4000

Established

Delaware since 08/19/1997

Firm Type

Limited Liability Company

Fiscal Year End

December

Firm Size

Small

# of Employees

120

SEC notice filing (15 States and Territories)

Registered to provide investment advisory services in 15 US states and territories.

FINRA licenses (52 States and Territories)

Registered to provide investment advisory services in 15 US states and territories.

Documents

Customer Relationship Summary (CRS / SEC)Customer Relationship Summary (CRS / FINRA)Latest Form ADV

Part 2 Brochures

20260331 COLLIERS SECURITIES LLC DISCLOSURE BROCHURE (3/31/2026)

Direct owners and executive officers

NamePositionCRD#
COLLIERS MORTGAGE HOLDINGS LLCDIRECT OWNER—
HABLE, DEBORAH MARIEOPERATIONS MANAGER1596570
HINIKER, JAMES JOHN IIISVP2148843
JACOBSON, JEFFREY DUANEEVP, CHIEF OPERATING OFFICER & BOARD MEMBER1976541
JURAN, DAVID BRAMLEYCHAIRMAN OF THE BOARD2166483
MULLEN, DAVID THOMASEVP, BOARD MEMBER1273590
NORRIS, ROGER ALLANSVP, REGISTERED OPTIONS PRINCIPAL2201413
STEICHEN, THOMAS FRANCISEVP, CCO & GENERAL COUNSEL, BOARD MEMBER6920110
THEIS, CRAIG DANIELSVP, BOARD MEMBER4365341
VAN HANDEL, REBECCACHIEF FINANCIAL OFFICER & FINOP7558187

Regulatory Assets Under Management

Total Number of Accounts

1,055

AUM (Assets Under Management)

$329,636,522

Disclosures

Regulatory Event

25

Arbitration

10

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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) Stinson TIF Partners LLC; investment-related; Mendota Heights, MN; Investment in a TIF note; Part owner and Officer; December 2014; no time devoted to this activity during normal business hours; Secretary/Treasurer.
(2) Timberland Partners Apartment Fund V, LLC; investment-related; Bloomington, MN; apartment real estate investing; Partner & Passive investor; February 2016; no time devoted to this activity; no duties.
(3) Timberland Partners Apartment Fund VIII, LLC; investment-related; Minneapolis, MN; Partnership acquiring and hold apartment projects; Passive partner; May 2021; no time devoted to this activity; no duties.
(4) Timberland Partners Apartment Fund IX, LLC; investment-related; Bloomington, MN; Real estate partnership investing in apartments; Limited partner; February 2022; no time devoted to this activity; no duties.

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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".
COLLIERS SECURITIES LLC
COLLIERS SECURITIES LLC

COLLIERS SECURITIES LLC | SUMMIT INVESTMENT CORPORATION | NODAKBONDS | DOUGHERTY VALUE ADVISORS | DOUGHERTY SUMMIT SECURITIES LLC | DOUGHERTY & COMPANY LLC

CRD#: 7477 / SEC#: 801-80233, 8-21937
RIA
Registered Investment Advisory firm - SEC (9/25/2014 Approved)
Arizona
Registered Investment Advisory firm - SEC (10/3/2014 Terminated)
California
Registered Investment Advisory firm - SEC (10/20/2014 Terminated)
Florida
Registered Investment Advisory firm - SEC (10/3/2014 Terminated)
Iowa
Registered Investment Advisory firm - SEC (10/6/2014 Terminated)
Minnesota
Registered Investment Advisory firm - SEC (10/13/2014 Terminated)
North Dakota
Registered Investment Advisory firm - SEC (10/3/2014 Terminated)
South Dakota
Registered Investment Advisory firm - SEC (10/3/2014 Terminated)
Texas
Registered Investment Advisory firm - SEC (10/3/2014 Terminated)
Wisconsin
Registered Investment Advisory firm - SEC (10/6/2014 Terminated)
BD
Broker-Dealer Firm Regulated by FINRA (Kansas City district office)
Why is a state registration marked "Terminated"? When a firm registers with the SEC (usually after managing $100M+ AUM), it often withdraws separate state firm registrations unless required by that state. The firm can still serve clients there through its individually registered Investment Advisor Representatives (IARs).

State Registrations and Notice Filings

Listed states reflect where the advisor is authorized to serve clients under state regulations.
RR
indicates the advisor is registered as a Registered Representative in this state, allowing securities offerings such as stocks, bonds, and mutual funds through a broker-dealer.
RR
California
(1/6/2016)
RR
Colorado
(1/6/2016)
RR
Florida
(1/2/2024)
RR
Minnesota
(6/24/2014)
RR
South Dakota
(1/6/2016)
RR
Texas
(1/6/2016)

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

Financial professionals may take different exams throughout their careers based on the types of services they provide and roles they perform.

Series 66 — Uniform Combined State Law Examination

Passed Jun 2014About the Series 66 exam

Series 63 — Uniform Securities Agent State Law Examination

Passed Mar 1990About the Series 63 exam

Series 52TO — Municipal Securities Representative Examination

Passed Jan 2023About the Series 52TO exam

SIE — Securities Industry Essentials Examination

Passed Oct 2018About the SIE exam

Series 50 — Municipal Advisor Representative Qualification Exam

Passed Feb 2016About the Series 50 exam

Series 7 — General Securities Representative Examination

Passed Jan 1988About the Series 7 exam

Series 54 — Municipal Advisor Principal Qualification Examination

Passed Oct 2020About the Series 54 exam

Series 24 — General Securities Principal Examination

Passed May 2020About the Series 24 exam

Series 53 — Municipal Securities Principal Examination

Passed Jul 1996About the Series 53 exam
FINRA
SRO Registrations
Nasdaq Stock Market
SRO Registrations

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CRS (Client Relationship Summary) - BD

Click below to view David Thomas Mullen's CRS (Customer Relationship Summary).

CRS (Customer Relationship Summary)

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