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RIA / WealthAdvisordual registered (broker-dealer)23 years in industry

ROBERT CALDER STACK

Advisor at WELLS FARGO ADVISORS

GREENWOOD VILLAGE, CO | SANTA FE, NM | CENTENNIAL, CO

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Data as of Sep 15, 2026 (this record's last observation) from federal regulator filings. Page built Sep 21, 2026, 1:01 AM UTC and rebuilt at most every 15 minutes.

Relationships: 6
Dated events: 0
On other graphs: 0
Observed: Jun 1, 2006 to Sep 15, 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: WELLS FARGO ADVISORS
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: Nov 7, 2002earliest registration or exam on IAPD
Years in industry: 23derivedfrom the industry start date
Years at current firm: 3derivedfrom the current registration's begin date
Prior firms: 5
Current registrations: 1
Registered states: 3
Exams: S63|S65
First exam: Nov 7, 2002
First registration: Jun 1, 2006
Dual registered: yes, broker-dealer
Other names: ROBERT CALDER STACK|ROBERT STACK
IAPD individual key: 4557073

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
WELLS FARGO ADVISORS	Wirehouse	Jun 16, 2023	n/a	yes	GREENWOOD VILLAGE, CO\|SANTA FE, NM\|CENTENNIAL, CO	Current employment
THORNBURG INVESTMENT MANAGEMENT INC	Asset manager	Oct 22, 2008	Mar 23, 2016	no	SANTA FE, NM\|CENTENNIAL, CO	Previous registration
AST INVESTMENT SERVICES, INC.	Asset manager	Apr 28, 2008	Oct 3, 2008	no	SHELTON, CT	Previous registration
THORNBURG INVESTMENT MANAGEMENT INC	Asset manager	Aug 28, 2007	May 5, 2008	no	SANTA FE, NM\|SANTA FE, NM	Previous registration
THORNBURG INVESTMENT MANAGEMENT INC	Asset manager	Aug 16, 2007	Aug 28, 2007	no	SANTA FE, NM	Previous registration
AST INVESTMENT SERVICES, INC.	Asset manager	Jun 1, 2006	Jul 31, 2007	no	SHELTON, CT	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
THORNBURG INVESTMENT MANAGEMENT INC	WELLS FARGO ADVISORS	Mar 23, 2016	Jun 16, 2023	2,641	Firm change after gap	Other
AST INVESTMENT SERVICES, INC.	THORNBURG INVESTMENT MANAGEMENT INC	Oct 3, 2008	Oct 22, 2008	19	Firm change	Other
THORNBURG INVESTMENT MANAGEMENT INC	AST INVESTMENT SERVICES, INC.	May 5, 2008	Apr 28, 2008	-7	Firm change	Other
AST INVESTMENT SERVICES, INC.	THORNBURG INVESTMENT MANAGEMENT INC	Jul 31, 2007	Aug 16, 2007	16	Firm change	Other

Relationships

Registered with (3)

→ WELLS FARGO ADVISORSRegistered adviserregistration: current employment
Jun 16, 2023 to presentfactForm ADV
→ THORNBURG INVESTMENT MANAGEMENT INCRegistered adviserregistration: previous registration
Oct 22, 2008 to Mar 23, 2016factForm ADV
→ AST INVESTMENT SERVICES, INC.Registered adviserregistration: previous registration
Apr 28, 2008 to Oct 3, 2008factForm ADV

Dated events

No dated event names this entity yet.