Sofia Dieppa

ALLIANCEBERNSTEIN L.P.

WASHINGTON, DC 20006-2720

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CRD#: 7952847

Professional summary

Sofia Dieppa is a registered financial advisor currently at ALLIANCEBERNSTEIN L.P. located in Washington, District Of Columbia and SANFORD C. BERNSTEIN & CO., LLC located in Washington, District Of Columbia.

Sofia is registered as an IAR (Investment Advisor Representative) and RR (Registered Representative) and started their career in finance in 2024. Sofia has worked at 4 firms and has passed the Series 66, Series 7TO and SIE exams.

Aliases

None

Other business activities

Outside business activity is any business or activity undertaken by an advisor that is outside the scope of their relationship with their firm (e.g., consulting services, real estate, freelance work, teaching, etc.). Investors should stay informed about these activities to ensure no conflicts of interest.

Sterling Capital Management LLC; Investment Related; Charlotte, NC; Capital Management; Internal Wholesaler; Start 6/24/2024; 160 Hrs Per Month; Support External Wholesalers at Sterling Capital by providing them with requested information and assisting with sales calls

Blog Corner

CRS (Client Relationship Summary) - RIA

Click below to view Sofia Dieppa's CRS (Customer Relationship Summary).

CRS (Customer Relationship Summary)

Certified licenses

Advisors may have various certifications and credentials from different organizations. AdvisorCheck highlights these seven certifications - AIF®, CFP®, ChFC®, CFA, CLU®, CIMA®, CPWA®

None

Experience

Current

September 23, 2026 - Present

ALLIANCEBERNSTEIN L.P.

Office #1: 800 Connecticut Avenue, N.w. Suite 1100, Washington, DC 20006-2720

RIA

CRD#: 108477

WASHINGTON, DC

Current

September 4, 2026 - Present

SANFORD C. BERNSTEIN & CO., LLC

Office #1: 800 Connecticut Avenue, N.w. Suite 1100, Washington, DC 20006-2720

RIA

CRD#: 104474

WASHINGTON, DC

Past

February 3, 2025 - July 17, 2026

STERLING CAPITAL MANAGEMENT LLC

RIA

CRD#: 135405

Charlotte, NC

Past

October 16, 2024 - July 17, 2026

STERLING CAPITAL DISTRIBUTORS, LLC

CRD#: 103934

CHARLOTTE, NC

Primary Firm SEC Registration

This SEC-registered firm can serve clients nationwide. Some states may require the firm to submit a notice filing if the firm has more than 5 clients or a physical office there. You can view these state-level filings under the section titled "State Registrations and Notice Filings".

ALLIANCEBERNSTEIN L.P.

ALLIANCE CAPITAL MANAGEMENT L P | ALLIANCEBERNSTEIN L.P.

CRD#: 108477 / SEC#: 801-56720

RIA

Registered Investment Advisory firm - (8/13/1999 Approved)

State Registrations and Notice Filings

Listed states reflect where the advisor is authorized to serve clients under state regulations.

IAR

means the advisor is registered as an Investment Advisor Representative in this state and is authorized to provide investment advice to clients there.

indicates the advisor is registered as a Registered Representative in this state, allowing them to offer securities such as stocks, bonds, and mutual funds through a broker-dealer.

Visual representation of state registrations

District of Columbia
(9/4/2026)

IAR

District of Columbia
(9/23/2026)

Virginia
(9/4/2026)

Don't see your state listed? The advisor may still be able to work with you under the federal De Minimis Rule, which allows up to five investment advisory clients in a state without registration. Some states, like TX, LA, NE, and NH, may still require registration or notice filing. Contact the advisor or their firm to confirm their investment advisory availability in your state. Note: This rule does not apply to broker-dealer activity.

Exams

What does exam status mean?

State Security Law Exam

IAR

Series 66

Status Unavailable

Passed: 1/13/2025

Uniform Combined State Law Examination

General Industry/Product Exam

Series 7TO

Status Unavailable

Passed: 10/16/2024

General Securities Representative Examination

General Industry/Product Exam

SIE

Status Unavailable

Passed: 8/9/2024

Securities Industry Essentials Examination

SRO Registrations

FINRA

Current Firm

ALLIANCEBERNSTEIN L.P.

ALLIANCE CAPITAL MANAGEMENT L P | ALLIANCEBERNSTEIN L.P.

CRD#: 108477 / SEC#: 801-56720

RIA

Registered Investment Advisory firm - (8/13/1999 Approved)

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Contact information

Main Address

501 Commerce Street, Nashville, TN 37203

Mailing Address

Phone number

(615) 622-0000

Established

Firm type

Fiscal year end

# of Employees

4,204

SEC notice filing (51 States and Territories)

Documents

Customer Relationship Summary (CRS / SEC)

Latest Form ADV

Part 2 Brochures

PRIVATE CLIENT FORM ADV BROCHURE (3/30/2026)

INSTITUTIONAL FORM ADV BROCHURE (3/30/2026)

Regulatory assets under management

Total Number of Accounts	75,956
AUM (Assets Under Management)	$ 763,401,000,000

Accountant surprise examination report

Filing Date	Form ADV-E Cover	Form ADV-E Report
12/19/2025	Cover Page	Report
11/25/2024	Cover Page	Report
10/27/2023	Cover Page	Report

Red Flags

Disclosures can be potential red flags, including customer disputes, regulatory fines, employer terminations, bankruptcies, judgments, liens, or certain criminal activities.

Check for any disclosures as part of your thorough research when choosing an advisor.

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Sofia Dieppa

Professional summary

Aliases

Other business activities

Blog Corner

CRS (Client Relationship Summary) - RIA

Click below to view Sofia Dieppa's CRS (Customer Relationship Summary).

Certified licenses

Experience

SANFORD C. BERNSTEIN & CO., LLC

STERLING CAPITAL MANAGEMENT LLC

STERLING CAPITAL DISTRIBUTORS, LLC

Primary Firm SEC Registration

ALLIANCEBERNSTEIN L.P.

State Registrations and Notice Filings

Exams

Series 66

Passed: 1/13/2025

Series 7TO

Passed: 10/16/2024

SIE

Passed: 8/9/2024

FINRA

Current Firm

ALLIANCEBERNSTEIN L.P.

Contact information

SEC notice filing (51 States and Territories)

Documents

Part 2 Brochures

Regulatory assets under management

Accountant surprise examination report

Red Flags

Company Information

ALLIANCEBERNSTEIN L.P.

TRUST BUT VERIFY

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