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RIA / WealthAdvisordual registered (broker-dealer)13 years in industry

BRETT ANDREW SONZOGNI

Advisor at SIEBERT ADVISORNXT, LLC.

NEW YORK, NY

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Search this name across graphsid dfx:ria:4c950772-9a5c-ca6c-9119-3ce1cc337813

Data as of Sep 14, 2026 (this record's last observation) from federal regulator filings. Page built Sep 21, 2026, 9:50 PM UTC and rebuilt at most every 15 minutes.

Relationships: 4
Dated events: 3
On other graphs: 0
Observed: Jul 27, 2018 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: SIEBERT ADVISORNXT, LLC.
Current firm class: independent wealth managerderived
Book size: not publicno per-advisor AUM is published by the SEC, FINRA or IAPD, and DFX estimates none
Industry start: Jan 1, 2013earliest registration or exam on IAPD
Years in industry: 13derivedfrom the industry start date
Years at current firm: 0derivedfrom the current registration's begin date
Prior firms: 3
Current registrations: 1
Registered states: 2
Exams: S66
First exam: Jun 5, 2018
First registration: Jul 27, 2018
Dual registered: yes, broker-dealer
IAPD individual key: 6768295

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
SIEBERT ADVISORNXT, LLC.	Independent wealth	Apr 2, 2026	n/a	yes	NEW YORK, NY	Current employment
EMPOWER PRIVATE WEALTH	Former SEC adviser	Apr 18, 2025	Mar 16, 2026	no	NEW YORK, NY\|Fort Lauderdale, FL	Previous registration
B RILEY WEALTH MANAGEMENT	Former SEC adviser	Mar 14, 2022	Dec 31, 2022	no	Boca Raton, FL	Previous registration
B. RILEY WEALTH ADVISORS, INC.	Bd affiliated wealth	Jul 27, 2018	Mar 19, 2025	no	BOCA RATON, FL\|BOCA RATON, FL\|BOCA RATON, FL	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
EMPOWER PRIVATE WEALTH	SIEBERT ADVISORNXT, LLC.	Mar 16, 2026	Apr 2, 2026	17	Firm change	Other
B. RILEY WEALTH ADVISORS, INC.	B RILEY WEALTH MANAGEMENT	Mar 19, 2025	Mar 14, 2022	-1,101	Firm change after gap	Ibd to ibd
B RILEY WEALTH MANAGEMENT	EMPOWER PRIVATE WEALTH	Dec 31, 2022	Apr 18, 2025	839	Firm change after gap	Other

Relationships

Registered with (4)

→ SIEBERT ADVISORNXT, LLC.Registered adviserregistration: current employment
Apr 2, 2026 to presentfactForm ADV
→ EMPOWER PRIVATE WEALTHRegistered adviserregistration: previous registration
Apr 18, 2025 to Mar 16, 2026factForm ADV
→ B. RILEY WEALTH ADVISORS, INC.Registered adviserregistration: previous registration
Jul 27, 2018 to Mar 19, 2025factForm ADV
→ B RILEY WEALTH MANAGEMENTRegistered adviserregistration: previous registration
Mar 14, 2022 to Dec 31, 2022factForm ADV

Dated events

Occurred
Mar 16, 2026
Advisor changed firm
Brett Andrew Sonzogni left Empower Private Wealth for Siebert Advisornxt, Llc. (registered 2026-04-02)
Form ADVobserved 6 days ago
Occurred
Mar 19, 2025
Advisor changed firm
Brett Andrew Sonzogni left B. Riley Wealth Advisors, Inc. for B Riley Wealth Management (registered 2022-03-14)
Form ADVobserved 6 days ago
Occurred
Dec 31, 2022
Advisor changed firm
Brett Andrew Sonzogni left B Riley Wealth Management for Empower Private Wealth (registered 2025-04-18)
Form ADVobserved 6 days ago