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Mark Bennett Obrien

OBRIEN GREENE & CO
MEDIA, PA
·CRD# 1631654·39 years experience

Professional Summary

Mark Bennett Obrien, who also goes by Mark Obrien, is a registered financial advisor currently at OBRIEN GREENE & CO INC located in Media, Pennsylvania. Mark is registered as an IAR (Investment Advisor Representative) and started their career in finance in 1991. Mark has worked at 1 firm and has passed the Series 63 exam.

At a Glance

Always Fiduciary

Fiduciary Standard

Fee Structure

Account Minimum

Active Clients

Fiduciary Standard

Fee Structure

Account Minimum

Active Clients

Other Aliases

Mark Obrien

Blog Corner

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Videos & Posts

This advisor has not added any videos or posts yet.

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Contact Information

Email

xxxxx@xxxx.xxx

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Disclosures are events reported to regulators, such as customer disputes, regulatory actions, employment separations, or financial events. Some are resolved, denied, or contested — a disclosure is not a verdict. We recommend asking an advisor directly about any disclosure on their record.

Disclosures on record.

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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Years of Experience

39 years in the financial services industry

Current & Past Employments

OBRIEN GREENE & CO INC·CRD# 110281
RIA
218 West State St., Media, PA 19063
May 3, 1991 - Present

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Current Firm

OG
OBRIEN GREENE & CO INC

OBRIEN GREENE & CO INC

CRD#: 110281 / SEC#: 801-5866
RIA
Registered Investment Advisory firm - SEC (7/18/1969 Approved)

Contact Information

Main Address

218 W. State Street, Media, PA 19063

Phone Number

(610) 891-7880

# of Employees

7

SEC notice filing (6 States and Territories)

Registered to provide investment advisory services in 6 US states and territories.

Documents

Customer Relationship Summary (CRS / SEC)Latest Form ADV

Part 2 Brochures

O'BRIEN GREENE & CO. INC. PART 2A (3/12/2026)

Regulatory Assets Under Management

Total Number of Accounts

355

AUM (Assets Under Management)

$464,333,784

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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.

The advisor shows no other business activity.

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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".
OG
OBRIEN GREENE & CO INC

OBRIEN GREENE & CO INC

CRD#: 110281 / SEC#: 801-5866
RIA
Registered Investment Advisory firm - SEC (7/18/1969 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.
IAR
Pennsylvania
(5/3/1991)
IAR
Texas
(12/16/2005)

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.

Exams

Financial professionals may take different exams throughout their careers based on the types of services they provide and roles they perform.

Series 63 — Uniform Securities Agent State Law Examination

Passed Aug 1987About the Series 63 exam

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CRS (Client Relationship Summary) - RIA

Click below to view Mark Bennett Obrien's CRS (Customer Relationship Summary).

CRS (Customer Relationship Summary)

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