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RIA / WealthAdvisordual registered (broker-dealer)36 years in industry

MARK LARSON

Advisor at LPL FINANCIAL LLC

YORKVILLE, IL

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Search this name across graphsid dfx:ria:d69a248d-6e0a-29de-571e-7712215eb8ca

Data as of Sep 14, 2026 (this record's last observation) from federal regulator filings. Page built Sep 20, 2026, 2:16 AM UTC and rebuilt at most every 15 minutes.

Relationships: 8
Dated events: 1
On other graphs: 0
Observed: Aug 24, 1999 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: LPL FINANCIAL LLC
Current firm class: broker-dealer affiliated wealth managerderived
Book size: not publicno per-advisor AUM is published by the SEC, FINRA or IAPD, and DFX estimates none
Industry start: Dec 11, 1989earliest registration or exam on IAPD
Years in industry: 36derivedfrom the industry start date
Years at current firm: 3derivedfrom the current registration's begin date
Prior firms: 7
Current registrations: 1
Registered states: 2
Exams: S65|S63|S66
First exam: Dec 11, 1989
First registration: Aug 24, 1999
Dual registered: yes, broker-dealer
Other names: MARK ROBERT LARSON|MARK LARSON|MARK R LARSON
IAPD individual key: 1831640

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
LPL FINANCIAL LLC	Bd affiliated wealth	Mar 15, 2023	n/a	yes	YORKVILLE, IL	Current employment
WELLS FARGO ADVISORS	Wirehouse	May 18, 2021	Feb 28, 2023	no	MADISON, WI\|MILWAUKEE, WI\|MADISON, WI	Previous registration
WELLS FARGO ADVISORS	Wirehouse	Sep 20, 2018	Jan 24, 2020	no	NAPERVILLE, IL	Previous registration
MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED	Wirehouse	Jan 27, 2017	Sep 21, 2018	no	CHICAGO, IL	Previous registration
TD AMERITRADE INVESTMENT MANAGEMENT, LLC	Former SEC adviser	May 16, 2006	Jun 9, 2008	no	OAK BROOK, IL	Previous registration
TD AMERITRADE, INC.	Former SEC adviser	Sep 30, 2005	Jun 9, 2008	no	OAKBROOK, IL\|Oak Brook, IL	Previous registration
OPTIMUM INVESTMENT ADVISORS, LLC	Former SEC adviser	May 11, 2005	Sep 30, 2005	no	CHICAGO, IL	Previous registration
CHARLES SCHWAB & CO., INC.	National bd RIA	Aug 24, 1999	Apr 28, 2005	no	SCHAUMBURG, IL	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	LPL FINANCIAL LLC	Feb 28, 2023	Mar 15, 2023	15	Firm change	Wirehouse to RIA
MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED	WELLS FARGO ADVISORS	Sep 21, 2018	Sep 20, 2018	-1	Firm change	Wirehouse to wirehouse
TD AMERITRADE INVESTMENT MANAGEMENT, LLC	MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED	Jun 9, 2008	Jan 27, 2017	3,154	Firm change after gap	Other
TD AMERITRADE, INC.	TD AMERITRADE INVESTMENT MANAGEMENT, LLC	Jun 9, 2008	May 16, 2006	-755	Channel change	Other
OPTIMUM INVESTMENT ADVISORS, LLC	TD AMERITRADE, INC.	Sep 30, 2005	Sep 30, 2005	0	Firm change	Other
CHARLES SCHWAB & CO., INC.	OPTIMUM INVESTMENT ADVISORS, LLC	Apr 28, 2005	May 11, 2005	13	Firm change	Other

Relationships

Registered with (7)

→ LPL FINANCIAL LLCRegistered adviserregistration: current employment
Mar 15, 2023 to presentfactForm ADV
→ WELLS FARGO ADVISORSRegistered adviserregistration: previous registration
May 18, 2021 to Feb 28, 2023factForm ADV
→ MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATEDRegistered adviserregistration: previous registration
Jan 27, 2017 to Sep 21, 2018factForm ADV
→ TD AMERITRADE INVESTMENT MANAGEMENT, LLCRegistered adviserregistration: previous registration
May 16, 2006 to Jun 9, 2008factForm ADV
→ TD AMERITRADE, INC.Registered adviserregistration: previous registration
Sep 30, 2005 to Jun 9, 2008factForm ADV
→ OPTIMUM INVESTMENT ADVISORS, LLCRegistered adviserregistration: previous registration
May 11, 2005 to Sep 30, 2005factForm ADV
→ CHARLES SCHWAB & CO., INC.Registered adviserregistration: previous registration
Aug 24, 1999 to Apr 28, 2005factForm ADV

Dated events

Occurred
Feb 28, 2023
Advisor changed firm
Mark Larson left Wells Fargo Advisors for Lpl Financial Llc (registered 2023-03-15)
Form ADVobserved 5 days ago