DFX Intelligence

Data Factory

RIA / WealthAdvisordual registered (broker-dealer)19 years in industry

ALEXANDER DANIEL TANTLEFF

Advisor at CITIGROUP GLOBAL MARKETS INC.

Holbrook, NY | ROSLYN, NY | Plainview, NY

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:ae1fb464-8cc4-1727-016a-c330deb79fbf

Data as of Sep 15, 2026 (this record's last observation) from federal regulator filings. Page built Sep 20, 2026, 8:31 AM UTC and rebuilt at most every 15 minutes.

Relationships: 7
Dated events: 0
On other graphs: 0
Observed: Jul 8, 2011 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: CITIGROUP GLOBAL MARKETS INC.
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: Oct 6, 2006earliest registration or exam on IAPD
Years in industry: 19derivedfrom the industry start date
Years at current firm: 1derivedfrom the current registration's begin date
Prior firms: 6
Current registrations: 1
Registered states: 1
Exams: S65|S63
First exam: Oct 6, 2006
First registration: Jul 8, 2011
Dual registered: yes, broker-dealer
Other names: ALEXANDER DANIEL TANTLEFF|ALEXANDER DANIEL TANTLEFF|ALEX DANIEL TANTLEFF|ALEX DANIEL TANTLEFF|ALEXANDER TANTLEFF|ALEX TANTLEFF
IAPD individual key: 4254064

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
CITIGROUP GLOBAL MARKETS INC.	Bd affiliated wealth	Oct 15, 2024	n/a	yes	Holbrook, NY\|ROSLYN, NY\|Plainview, NY	Current employment
EQUITABLE ADVISORS, LLC	National bd RIA	Mar 26, 2019	Jun 16, 2020	no	MELVILLE, NY	Previous registration
J.P. MORGAN SECURITIES LLC	Wirehouse	Feb 23, 2015	Apr 5, 2019	no	CEDARHURST, NY\|WOODMERE, NY	Previous registration
CAPITAL ONE ADVISORS, LLC	Former SEC adviser	Jan 28, 2015	Feb 20, 2015	no	SEATTLE, WA	Previous registration
CAPITAL ONE FINANCIAL ADVISORS LLC	n/a	Feb 26, 2014	Jan 28, 2015	no	MELVILLE, NY	Previous registration
MORGAN STANLEY	Wirehouse	Feb 26, 2013	Mar 4, 2014	no	Jericho, NY	Previous registration
MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED	Wirehouse	Jul 8, 2011	Mar 4, 2013	no	GARDEN CITY, NY	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
EQUITABLE ADVISORS, LLC	CITIGROUP GLOBAL MARKETS INC.	Jun 16, 2020	Oct 15, 2024	1,582	Firm change after gap	Ibd to ibd
J.P. MORGAN SECURITIES LLC	EQUITABLE ADVISORS, LLC	Apr 5, 2019	Mar 26, 2019	-10	Firm change	Wirehouse to ibd
CAPITAL ONE ADVISORS, LLC	J.P. MORGAN SECURITIES LLC	Feb 20, 2015	Feb 23, 2015	3	Firm change	Other
CAPITAL ONE FINANCIAL ADVISORS LLC	CAPITAL ONE ADVISORS, LLC	Jan 28, 2015	Jan 28, 2015	0	Bulk transfer	Other
MORGAN STANLEY	CAPITAL ONE FINANCIAL ADVISORS LLC	Mar 4, 2014	Feb 26, 2014	-6	Firm change	Other
MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED	MORGAN STANLEY	Mar 4, 2013	Feb 26, 2013	-6	Firm change	Wirehouse to wirehouse

Relationships

Registered with (7)

→ CITIGROUP GLOBAL MARKETS INC.Registered adviserregistration: current employment
Oct 15, 2024 to presentfactForm ADV
→ EQUITABLE ADVISORS, LLCRegistered adviserregistration: previous registration
Mar 26, 2019 to Jun 16, 2020factForm ADV
→ J.P. MORGAN SECURITIES LLCRegistered adviserregistration: previous registration
Feb 23, 2015 to Apr 5, 2019factForm ADV
→ CAPITAL ONE ADVISORS, LLCRegistered adviserregistration: previous registration
Jan 28, 2015 to Feb 20, 2015factForm ADV
→ CAPITAL ONE FINANCIAL ADVISORS LLCRegistered adviserregistration: previous registration
Feb 26, 2014 to Jan 28, 2015factForm ADV
→ MORGAN STANLEYRegistered adviserregistration: previous registration
Feb 26, 2013 to Mar 4, 2014factForm ADV
→ MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATEDRegistered adviserregistration: previous registration
Jul 8, 2011 to Mar 4, 2013factForm ADV

Dated events

No dated event names this entity yet.