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RIA / WealthAdvisor17 years in industry

MARK WILLIAM CASSIDY

Advisor at PROSPERIANT WEALTH MANAGEMENT, LLC

WESTFIELD, NJ

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Search this name across graphsid dfx:ria:ea60df7b-8582-eb36-dea2-514610b63e6c

Data as of Sep 14, 2026 (this record's last observation) from federal regulator filings. Page built Sep 19, 2026, 10:50 AM UTC and rebuilt at most every 15 minutes.

Relationships: 4
Dated events: 1
On other graphs: 0
Observed: Sep 5, 2011 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: PROSPERIANT WEALTH MANAGEMENT, LLC
Current firm class: state registeredderived
Book size: not publicno per-advisor AUM is published by the SEC, FINRA or IAPD, and DFX estimates none
Industry start: Sep 2, 2009earliest registration or exam on IAPD
Years in industry: 17derivedfrom the industry start date
Years at current firm: 2derivedfrom the current registration's begin date
Prior firms: 3
Current registrations: 1
Registered states: 1
Exams: S66|S63
First exam: Sep 2, 2009
First registration: Sep 5, 2011
Dual registered: no
Other names: MARK W CASSIDY
IAPD individual key: 5683346

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
PROSPERIANT WEALTH MANAGEMENT, LLC	State registered	Oct 16, 2023	n/a	yes	WESTFIELD, NJ	Current employment
LAIDLAW WEALTH MANAGEMENT LLC	Independent wealth	May 3, 2019	Nov 13, 2023	no	NEW YORK, NY	Previous registration
MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED	Wirehouse	Nov 15, 2012	May 6, 2019	no	JERSEY CITY, NJ\|SHORT HILLS, NJ\|SUMMIT, NJ\|NEW YORK, NY	Previous registration
MORGAN STANLEY	Wirehouse	Sep 5, 2011	Nov 20, 2012	no	Short Hills, NJ\|SHORT HILLS, NJ	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
LAIDLAW WEALTH MANAGEMENT LLC	PROSPERIANT WEALTH MANAGEMENT, LLC	Nov 13, 2023	Oct 16, 2023	-28	Firm change	RIA to state RIA
MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED	LAIDLAW WEALTH MANAGEMENT LLC	May 6, 2019	May 3, 2019	-3	Firm change	Wirehouse to RIA
MORGAN STANLEY	MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED	Nov 20, 2012	Nov 15, 2012	-5	Firm change	Wirehouse to wirehouse

Relationships

Registered with (4)

→ PROSPERIANT WEALTH MANAGEMENT, LLCRegistered adviserregistration: current employment
Oct 16, 2023 to presentfactForm ADV
→ LAIDLAW WEALTH MANAGEMENT LLCRegistered adviserregistration: previous registration
May 3, 2019 to Nov 13, 2023factForm ADV
→ MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATEDRegistered adviserregistration: previous registration
Nov 15, 2012 to May 6, 2019factForm ADV
→ MORGAN STANLEYRegistered adviserregistration: previous registration
Sep 5, 2011 to Nov 20, 2012factForm ADV

Dated events

Occurred
Nov 13, 2023
Advisor changed firm
Mark William Cassidy left Laidlaw Wealth Management Llc for Prosperiant Wealth Management, Llc (registered 2023-10-16)
Form ADVobserved 4 days ago