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RIA / WealthAdvisordual registered (broker-dealer)37 years in industry

Mark ARNOLD Theriault

Advisor at MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED

FRISCO, TX

This is the graph view. The full profile, with its team, deals and sources, is on RIA / Wealth Management.Open the full profile →

Search this name across graphsid dfx:ria:624bda17-b4f7-a0f2-4c16-b7f5b6f99e47

Data as of Sep 14, 2026 (this record's last observation) from federal regulator filings. Page built Sep 20, 2026, 1:05 PM UTC and rebuilt at most every 15 minutes.

Relationships: 3
Dated events: 0
On other graphs: 0
Observed: Mar 5, 2002 to Sep 14, 2026

Across DFX

This entity has not been resolved onto another DFX graph by a shared identifier. A name match elsewhere would be a candidate, never an identity, and none is recorded.

Facts

fact = as filed or announced; derived = computed by DFX; estimate = a band, never a point

Current firm: MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED
Current firm class: wirehousederived
Book size: not publicno per-advisor AUM is published by the SEC, FINRA or IAPD, and DFX estimates none
Industry start: Oct 26, 1988earliest registration or exam on IAPD
Years in industry: 37derivedfrom the industry start date
Years at current firm: 11derivedfrom the current registration's begin date
Prior firms: 2
Current registrations: 1
Registered states: 1
Exams: S65|S63
First exam: Oct 26, 1988
First registration: Mar 5, 2002
Dual registered: yes, broker-dealer
Other names: MARK A THERIAULT
IAPD individual key: 1888502

Registration history

registration spans on IAPD; the basis says whether the span is a current registration or a prior employment record

Firm	Class	Began	Ended	Current	Branch	Basis
MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED	Wirehouse	Aug 27, 2015	n/a	yes	FRISCO, TX	Current employment
WELLS FARGO ADVISORS	Wirehouse	Mar 16, 2007	Aug 25, 2015	no	ADDISON, TX\|ADDISON, TX\|ADDISON, TX\|FORT WORTH, TX\|ALLEN, TX\|PLANO, TX\|FRISCO, TX\|PLANO, TX\|ALLEN, TX\|ALLEN, TX\|ADDISON, TX\|ROCKWALL, TX\|MCKINNEY, TX\|PLANO, TX\|PLANO, TX\|FORT WORTH, TX\|PLANO, TX\|ADDISON, TX\|DALLAS, TX	Previous registration
CITIGROUP GLOBAL MARKETS INC.	Bd affiliated wealth	Mar 5, 2002	Mar 26, 2007	no	PLANO, TX\|PLANO, TX	Previous registration

Moves

a move is two registration dates; a bulk corporate re-registration is typed BULK_TRANSFER and is not a move

From	To	Left	Joined	Gap, days	Kind	Move type
WELLS FARGO ADVISORS	MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED	Aug 25, 2015	Aug 27, 2015	2	Firm change	Wirehouse to wirehouse
CITIGROUP GLOBAL MARKETS INC.	WELLS FARGO ADVISORS	Mar 26, 2007	Mar 16, 2007	-10	Firm change	Other

Team moves

moves this advisor made together with colleagues (two or more registrations ending and beginning together)

Team	Left	Joined	From	Kind
19616:7691:TX:2015-08-17	Aug 25, 2015	Aug 27, 2015	DALLAS, TX	Firm change

Relationships

Registered with (3)

→ MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATEDRegistered adviserregistration: current employment
Aug 27, 2015 to presentfactForm ADV
→ WELLS FARGO ADVISORSRegistered adviserregistration: previous registration
Mar 16, 2007 to Aug 25, 2015factForm ADV
→ CITIGROUP GLOBAL MARKETS INC.Registered adviserregistration: previous registration
Mar 5, 2002 to Mar 26, 2007factForm ADV

Dated events

No dated event names this entity yet.

Provenance

Graph: RIA / Wealth Management
Canonical id: dfx:ria:624bda17-b4f7-a0f2-4c16-b7f5b6f99e47
First observed: Mar 5, 2002
Last observed: Sep 14, 2026 6 days ago
Source families: Federal regulator filings
1 registered feed stand behind this record; each fact above carries its own dates and, where the publisher serves one, its document.
Resolution: Identity across graphs by shared identifier (CRD, CIK, EIN, ADV fund id, individual CRD) or citation; a name match is shown as a candidate and never merged.

Mark ARNOLD Theriault

Advisor at MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED

FRISCO, TX

This is the graph view. The full profile, with its team, deals and sources, is on RIA / Wealth Management.Open the full profile →

Search this name across graphsid dfx:ria:624bda17-b4f7-a0f2-4c16-b7f5b6f99e47

Data as of Sep 14, 2026 (this record's last observation) from federal regulator filings. Page built Sep 20, 2026, 1:05 PM UTC and rebuilt at most every 15 minutes.

Firm

Class

Began

Ended

Current

Branch

Basis

MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED

Wirehouse

Aug 27, 2015

n/a

yes

FRISCO, TX

Current employment

WELLS FARGO ADVISORS

Wirehouse

Mar 16, 2007

Aug 25, 2015

Previous registration

CITIGROUP GLOBAL MARKETS INC.

Bd affiliated wealth

Mar 5, 2002

Mar 26, 2007

PLANO, TX|PLANO, TX

Previous registration

From

Left

Joined

Gap, days

Kind

Move type

WELLS FARGO ADVISORS

MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED

Aug 25, 2015

Aug 27, 2015

Firm change

Wirehouse to wirehouse

CITIGROUP GLOBAL MARKETS INC.

WELLS FARGO ADVISORS

Mar 26, 2007

Mar 16, 2007

-10

Firm change

Other

Team

Left

Joined

From

Kind

19616:7691:TX:2015-08-17

Aug 25, 2015

Aug 27, 2015

DALLAS, TX

Firm change